[clang] fd39b1b - Revert "Revert "As a follow-up to my initial mail to llvm-dev here's a first pass at the O1 described there.""

David Blaikie via cfe-commits cfe-commits at lists.llvm.org
Mon Dec 2 07:27:08 PST 2019


Might be handy to mention what was different in the recommit/what was done
to address the reason for the revert? (also including the revert hash can
make some of the archaeology a bit easier)

I guess the recommit addresses the issue with all those lldb test changes
that switch -O1 -> -O2?

On Tue, Nov 26, 2019 at 11:30 PM Eric Christopher via cfe-commits <
cfe-commits at lists.llvm.org> wrote:

>
> Author: Eric Christopher
> Date: 2019-11-26T20:28:52-08:00
> New Revision: fd39b1bb20cec32c310ae9b6f1b4603c17a5f832
>
> URL:
> https://github.com/llvm/llvm-project/commit/fd39b1bb20cec32c310ae9b6f1b4603c17a5f832
> DIFF:
> https://github.com/llvm/llvm-project/commit/fd39b1bb20cec32c310ae9b6f1b4603c17a5f832.diff
>
> LOG: Revert "Revert "As a follow-up to my initial mail to llvm-dev here's
> a first pass at the O1 described there.""
>
> This reapplies: 8ff85ed905a7306977d07a5cd67ab4d5a56fafb4
>
> Original commit message:
>
> As a follow-up to my initial mail to llvm-dev here's a first pass at the
> O1 described there.
>
> This change doesn't include any change to move from selection dag to fast
> isel
> and that will come with other numbers that should help inform that
> decision.
> There also haven't been any real debuggability studies with this pipeline
> yet,
> this is just the initial start done so that people could see it and we
> could start
> tweaking after.
>
> Test updates: Outside of the newpm tests most of the updates are coming
> from either
> optimization passes not run anymore (and without a compelling argument at
> the moment)
> that were largely used for canonicalization in clang.
>
> Original post:
>
> http://lists.llvm.org/pipermail/llvm-dev/2019-April/131494.html
>
> Tags: #llvm
> Differential Revision: https://reviews.llvm.org/D65410
>
> This reverts commit c9ddb02659e3ece7a0d9d6b4dac7ceea4ae46e6d.
>
> Added:
>
>
> Modified:
>     clang/test/CodeGen/2008-07-30-implicit-initialization.c
>     clang/test/CodeGen/arm-fp16-arguments.c
>     clang/test/CodeGen/arm-vfp16-arguments2.cpp
>     clang/test/CodeGen/atomic-ops-libcall.c
>     clang/test/CodeGenCXX/atomicinit.cpp
>     clang/test/CodeGenCXX/auto-var-init.cpp
>     clang/test/CodeGenCXX/discard-name-values.cpp
>     clang/test/CodeGenCXX/microsoft-abi-dynamic-cast.cpp
>     clang/test/CodeGenCXX/microsoft-abi-typeid.cpp
>     clang/test/CodeGenCXX/nrvo.cpp
>     clang/test/CodeGenCXX/stack-reuse.cpp
>     clang/test/CodeGenCXX/wasm-args-returns.cpp
>     clang/test/CodeGenObjCXX/arc-blocks.mm
>     clang/test/CodeGenObjCXX/nrvo.mm
>
> clang/test/Lexer/minimize_source_to_dependency_directives_invalid_error.c
>     clang/test/PCH/no-escaping-block-tail-calls.cpp
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq1/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq2/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_call_site/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_paths_to_common_sink/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_tail_call_seq/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/inlining_and_tail_calls/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/sbapi_support/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_message/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_or_return/Makefile
>
> lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/unambiguous_sequence/Makefile
>     llvm/include/llvm/Passes/PassBuilder.h
>     llvm/lib/Passes/PassBuilder.cpp
>     llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
>     llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
>     llvm/test/Feature/optnone-opt.ll
>     llvm/test/Other/new-pm-defaults.ll
>     llvm/test/Other/new-pm-thinlto-defaults.ll
>     llvm/test/Transforms/MemCpyOpt/lifetime.ll
>     llvm/test/Transforms/PhaseOrdering/simplifycfg-options.ll
>     llvm/test/Transforms/PhaseOrdering/two-shifts-by-sext.ll
>
> Removed:
>
>
>
>
> ################################################################################
> diff  --git a/clang/test/CodeGen/2008-07-30-implicit-initialization.c
> b/clang/test/CodeGen/2008-07-30-implicit-initialization.c
> index e77c70a140f9..f2621f4560ec 100644
> --- a/clang/test/CodeGen/2008-07-30-implicit-initialization.c
> +++ b/clang/test/CodeGen/2008-07-30-implicit-initialization.c
> @@ -1,4 +1,4 @@
> -// RUN: %clang_cc1 -triple i386-unknown-unknown -O1 -emit-llvm -o - %s |
> FileCheck %s
> +// RUN: %clang_cc1 -triple i386-unknown-unknown -O2 -emit-llvm -o - %s |
> FileCheck %s
>  // CHECK-LABEL: define i32 @f0()
>  // CHECK:   ret i32 0
>  // CHECK-LABEL: define i32 @f1()
>
> diff  --git a/clang/test/CodeGen/arm-fp16-arguments.c
> b/clang/test/CodeGen/arm-fp16-arguments.c
> index d739f4b9c66a..34dc1a1cbf6a 100644
> --- a/clang/test/CodeGen/arm-fp16-arguments.c
> +++ b/clang/test/CodeGen/arm-fp16-arguments.c
> @@ -1,6 +1,6 @@
> -// RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs
> -mfloat-abi soft -fallow-half-arguments-and-returns -emit-llvm -o - -O1 %s
> | FileCheck %s --check-prefix=CHECK --check-prefix=SOFT
> -// RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs
> -mfloat-abi hard -fallow-half-arguments-and-returns -emit-llvm -o - -O1 %s
> | FileCheck %s --check-prefix=CHECK --check-prefix=HARD
> -// RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs
> -mfloat-abi soft -fnative-half-arguments-and-returns -emit-llvm -o - -O1 %s
> | FileCheck %s --check-prefix=NATIVE
> +// RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs
> -mfloat-abi soft -fallow-half-arguments-and-returns -emit-llvm -o - -O2 %s
> | FileCheck %s --check-prefix=CHECK --check-prefix=SOFT
> +// RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs
> -mfloat-abi hard -fallow-half-arguments-and-returns -emit-llvm -o - -O2 %s
> | FileCheck %s --check-prefix=CHECK --check-prefix=HARD
> +// RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs
> -mfloat-abi soft -fnative-half-arguments-and-returns -emit-llvm -o - -O2 %s
> | FileCheck %s --check-prefix=NATIVE
>
>  __fp16 g;
>
>
> diff  --git a/clang/test/CodeGen/arm-vfp16-arguments2.cpp
> b/clang/test/CodeGen/arm-vfp16-arguments2.cpp
> index 4f75971d8327..e436a5ecd6ab 100644
> --- a/clang/test/CodeGen/arm-vfp16-arguments2.cpp
> +++ b/clang/test/CodeGen/arm-vfp16-arguments2.cpp
> @@ -1,12 +1,12 @@
>  // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs \
> -// RUN:   -mfloat-abi soft -target-feature +neon -emit-llvm -o - -O1 %s \
> +// RUN:   -mfloat-abi soft -target-feature +neon -emit-llvm -o - -O2 %s \
>  // RUN:   | FileCheck %s --check-prefix=CHECK-SOFT
>  // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs \
> -// RUN:   -mfloat-abi hard -target-feature +neon -emit-llvm -o - -O1 %s \
> +// RUN:   -mfloat-abi hard -target-feature +neon -emit-llvm -o - -O2 %s \
>  // RUN:   | FileCheck %s --check-prefix=CHECK-HARD
>  // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs \
>  // RUN:   -mfloat-abi hard -target-feature +neon -target-feature
> +fullfp16 \
> -// RUN:   -emit-llvm -o - -O1 %s \
> +// RUN:   -emit-llvm -o - -O2 %s \
>  // RUN:   | FileCheck %s --check-prefix=CHECK-FULL
>
>  typedef float float32_t;
>
> diff  --git a/clang/test/CodeGen/atomic-ops-libcall.c
> b/clang/test/CodeGen/atomic-ops-libcall.c
> index c673b07f8ed8..ca79688c8a0c 100644
> --- a/clang/test/CodeGen/atomic-ops-libcall.c
> +++ b/clang/test/CodeGen/atomic-ops-libcall.c
> @@ -10,109 +10,109 @@ enum memory_order {
>
>  int *test_c11_atomic_fetch_add_int_ptr(_Atomic(int *) *p) {
>    // CHECK: test_c11_atomic_fetch_add_int_ptr
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_add_4(i8*
> {{%[0-9]+}}, i32 12, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_add_4(i8* {{%[0-9]+}},
> i32 12, i32 5)
>    return __c11_atomic_fetch_add(p, 3, memory_order_seq_cst);
>  }
>
>  int *test_c11_atomic_fetch_sub_int_ptr(_Atomic(int *) *p) {
>    // CHECK: test_c11_atomic_fetch_sub_int_ptr
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_sub_4(i8*
> {{%[0-9]+}}, i32 20, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_sub_4(i8* {{%[0-9]+}},
> i32 20, i32 5)
>    return __c11_atomic_fetch_sub(p, 5, memory_order_seq_cst);
>  }
>
>  int test_c11_atomic_fetch_add_int(_Atomic(int) *p) {
>    // CHECK: test_c11_atomic_fetch_add_int
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_add_4(i8*
> {{%[0-9]+}}, i32 3, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_add_4(i8* {{%[0-9]+}},
> i32 3, i32 5)
>    return __c11_atomic_fetch_add(p, 3, memory_order_seq_cst);
>  }
>
>  int test_c11_atomic_fetch_sub_int(_Atomic(int) *p) {
>    // CHECK: test_c11_atomic_fetch_sub_int
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_sub_4(i8*
> {{%[0-9]+}}, i32 5, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_sub_4(i8* {{%[0-9]+}},
> i32 5, i32 5)
>    return __c11_atomic_fetch_sub(p, 5, memory_order_seq_cst);
>  }
>
>  int *fp2a(int **p) {
>    // CHECK: @fp2a
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_sub_4(i8*
> {{%[0-9]+}}, i32 4, i32 0)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_sub_4(i8* {{%[0-9]+}},
> i32 4, i32 0)
>    // Note, the GNU builtins do not multiply by sizeof(T)!
>    return __atomic_fetch_sub(p, 4, memory_order_relaxed);
>  }
>
>  int test_atomic_fetch_add(int *p) {
>    // CHECK: test_atomic_fetch_add
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_add_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_add_4(i8* {{%[0-9]+}},
> i32 55, i32 5)
>    return __atomic_fetch_add(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_fetch_sub(int *p) {
>    // CHECK: test_atomic_fetch_sub
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_sub_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_sub_4(i8* {{%[0-9]+}},
> i32 55, i32 5)
>    return __atomic_fetch_sub(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_fetch_and(int *p) {
>    // CHECK: test_atomic_fetch_and
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_and_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_and_4(i8* {{%[0-9]+}},
> i32 55, i32 5)
>    return __atomic_fetch_and(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_fetch_or(int *p) {
>    // CHECK: test_atomic_fetch_or
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_or_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_or_4(i8* {{%[0-9]+}},
> i32 55, i32 5)
>    return __atomic_fetch_or(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_fetch_xor(int *p) {
>    // CHECK: test_atomic_fetch_xor
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_xor_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_xor_4(i8* {{%[0-9]+}},
> i32 55, i32 5)
>    return __atomic_fetch_xor(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_fetch_nand(int *p) {
>    // CHECK: test_atomic_fetch_nand
> -  // CHECK: {{%[^ ]*}} = tail call i32 @__atomic_fetch_nand_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: {{%[^ ]*}} = call i32 @__atomic_fetch_nand_4(i8* {{%[0-9]+}},
> i32 55, i32 5)
>    return __atomic_fetch_nand(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_add_fetch(int *p) {
>    // CHECK: test_atomic_add_fetch
> -  // CHECK: [[CALL:%[^ ]*]] = tail call i32 @__atomic_fetch_add_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: [[CALL:%[^ ]*]] = call i32 @__atomic_fetch_add_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
>    // CHECK: {{%[^ ]*}} = add i32 [[CALL]], 55
>    return __atomic_add_fetch(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_sub_fetch(int *p) {
>    // CHECK: test_atomic_sub_fetch
> -  // CHECK: [[CALL:%[^ ]*]] = tail call i32 @__atomic_fetch_sub_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: [[CALL:%[^ ]*]] = call i32 @__atomic_fetch_sub_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
>    // CHECK: {{%[^ ]*}} = add i32 [[CALL]], -55
>    return __atomic_sub_fetch(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_and_fetch(int *p) {
>    // CHECK: test_atomic_and_fetch
> -  // CHECK: [[CALL:%[^ ]*]] = tail call i32 @__atomic_fetch_and_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: [[CALL:%[^ ]*]] = call i32 @__atomic_fetch_and_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
>    // CHECK: {{%[^ ]*}} = and i32 [[CALL]], 55
>    return __atomic_and_fetch(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_or_fetch(int *p) {
>    // CHECK: test_atomic_or_fetch
> -  // CHECK: [[CALL:%[^ ]*]] = tail call i32 @__atomic_fetch_or_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: [[CALL:%[^ ]*]] = call i32 @__atomic_fetch_or_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
>    // CHECK: {{%[^ ]*}} = or i32 [[CALL]], 55
>    return __atomic_or_fetch(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_xor_fetch(int *p) {
>    // CHECK: test_atomic_xor_fetch
> -  // CHECK: [[CALL:%[^ ]*]] = tail call i32 @__atomic_fetch_xor_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: [[CALL:%[^ ]*]] = call i32 @__atomic_fetch_xor_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
>    // CHECK: {{%[^ ]*}} = xor i32 [[CALL]], 55
>    return __atomic_xor_fetch(p, 55, memory_order_seq_cst);
>  }
>
>  int test_atomic_nand_fetch(int *p) {
>    // CHECK: test_atomic_nand_fetch
> -  // CHECK: [[CALL:%[^ ]*]] = tail call i32 @__atomic_fetch_nand_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
> +  // CHECK: [[CALL:%[^ ]*]] = call i32 @__atomic_fetch_nand_4(i8*
> {{%[0-9]+}}, i32 55, i32 5)
>    // FIXME: We should not be checking optimized IR. It changes
> independently of clang.
>    // FIXME-CHECK: [[AND:%[^ ]*]] = and i32 [[CALL]], 55
>    // FIXME-CHECK: {{%[^ ]*}} = xor i32 [[AND]], -1
>
> diff  --git a/clang/test/CodeGenCXX/atomicinit.cpp
> b/clang/test/CodeGenCXX/atomicinit.cpp
> index 85ec74593fe0..657ade588fd5 100644
> --- a/clang/test/CodeGenCXX/atomicinit.cpp
> +++ b/clang/test/CodeGenCXX/atomicinit.cpp
> @@ -31,7 +31,7 @@ _Atomic(B) b;
>  // CHECK-LABEL: define void @_Z11atomic_initR1Ai
>  void atomic_init(A& a, int i) {
>    // CHECK-NOT: atomic
> -  // CHECK: tail call void @_ZN1BC1Ei
> +  // CHECK: call void @_ZN1BC1Ei
>    __c11_atomic_init(&b, B(i));
>    // CHECK-NEXT: ret void
>  }
>
> diff  --git a/clang/test/CodeGenCXX/auto-var-init.cpp
> b/clang/test/CodeGenCXX/auto-var-init.cpp
> index a2cb2c8352b6..9cd71bdfd1a7 100644
> --- a/clang/test/CodeGenCXX/auto-var-init.cpp
> +++ b/clang/test/CodeGenCXX/auto-var-init.cpp
> @@ -645,7 +645,7 @@ TEST_UNINIT(smallpartinit, smallpartinit);
>  // ZERO-LABEL: @test_smallpartinit_uninit()
>  // ZERO-O0: call void @llvm.memset{{.*}}, i8 0,
>  // ZERO-O1-LEGACY: store i16 0, i16* %uninit, align 2
> -// ZERO-O1-NEWPM: store i16 42, i16* %uninit, align 2
> +// ZERO-O1-NEWPM: store i16 0, i16* %uninit, align 2
>
>  TEST_BRACES(smallpartinit, smallpartinit);
>  // CHECK-LABEL: @test_smallpartinit_braces()
> @@ -718,7 +718,7 @@ TEST_UNINIT(paddednullinit, paddednullinit);
>  // PATTERN-LABEL: @test_paddednullinit_uninit()
>  // PATTERN-O0: call void @llvm.memcpy{{.*}}
> @__const.test_paddednullinit_uninit.uninit
>  // PATTERN-O1-LEGACY: store i64 [[I64]], i64* %uninit, align 8
> -// PATTERN-O1-NEWPM: store i64 2863311360, i64* %uninit, align 8
> +// PATTERN-O1-NEWPM: store i64 [[I64]], i64* %uninit, align 8
>  // ZERO-LABEL: @test_paddednullinit_uninit()
>  // ZERO-O0: call void @llvm.memset{{.*}}, i8 0,
>  // ZERO-O1: store i64 0, i64* %uninit, align 8
> @@ -1344,10 +1344,7 @@ TEST_UNINIT(virtualderived, virtualderived);
>  // ZERO-LABEL: @test_virtualderived_uninit()
>  // ZERO-O0: call void @llvm.memset{{.*}}, i8 0,
>  // ZERO-O1-LEGACY: call void @llvm.memset{{.*}}, i8 0,
> -// ZERO-O1-NEWPM: [[FIELD1:%.*]] = getelementptr inbounds
> %struct.virtualderived, %struct.virtualderived* %uninit, i64 0, i32 1, i32
> 0, i32 0
> -// ZERO-O1-NEWPM: [[FIELD0:%.*]] = getelementptr inbounds
> %struct.virtualderived, %struct.virtualderived* %uninit, i64 0, i32 0, i32 0
> -// ZERO-O1-NEWPM: store i32 (...)** bitcast (i8** getelementptr inbounds
> ({ [7 x i8*], [5 x i8*] }, { [7 x i8*], [5 x i8*] }* @_ZTV14virtualderived,
> i64 0, inrange i32 0, i64 5) to i32 (...)**), i32 (...)*** [[FIELD0]],
> align 8
> -// ZERO-O1-NEWPM: store i32 (...)** bitcast (i8** getelementptr inbounds
> ({ [7 x i8*], [5 x i8*] }, { [7 x i8*], [5 x i8*] }* @_ZTV14virtualderived,
> i64 0, inrange i32 1, i64 3) to i32 (...)**), i32 (...)*** [[FIELD1]],
> align 8
> +// ZERO-O1-NEWPM: call void @llvm.memset{{.*}}, i8 0,
>
>  TEST_BRACES(virtualderived, virtualderived);
>  // CHECK-LABEL: @test_virtualderived_braces()
>
> diff  --git a/clang/test/CodeGenCXX/discard-name-values.cpp
> b/clang/test/CodeGenCXX/discard-name-values.cpp
> index aa30dae7501b..91328a4ddade 100644
> --- a/clang/test/CodeGenCXX/discard-name-values.cpp
> +++ b/clang/test/CodeGenCXX/discard-name-values.cpp
> @@ -11,11 +11,11 @@ bool test(bool pred) {
>
>    if (pred) {
>      // DISCARDVALUE: 2:
> -    // DISCARDVALUE-NEXT: tail call void @branch()
> +    // DISCARDVALUE-NEXT: call void @branch()
>      // DISCARDVALUE-NEXT: br label %3
>
>      // CHECK: if.then:
> -    // CHECK-NEXT: tail call void @branch()
> +    // CHECK-NEXT: call void @branch()
>      // CHECK-NEXT: br label %if.end
>      branch();
>    }
>
> diff  --git a/clang/test/CodeGenCXX/microsoft-abi-dynamic-cast.cpp
> b/clang/test/CodeGenCXX/microsoft-abi-dynamic-cast.cpp
> index c99df0e88b42..a07114dce7d0 100644
> --- a/clang/test/CodeGenCXX/microsoft-abi-dynamic-cast.cpp
> +++ b/clang/test/CodeGenCXX/microsoft-abi-dynamic-cast.cpp
> @@ -13,7 +13,7 @@ T* test0() { return dynamic_cast<T*>((B*)0); }
>  T* test1(V* x) { return &dynamic_cast<T&>(*x); }
>  // CHECK-LABEL: define dso_local %struct.T* @"?test1@@YAPAUT@@PAUV@@@Z"(%struct.V*
> %x)
>  // CHECK:        [[CAST:%.*]] = bitcast %struct.V* %x to i8*
> -// CHECK-NEXT:   [[CALL:%.*]] = tail call i8* @__RTDynamicCast(i8*
> [[CAST]], i32 0, i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUV@@@8" to
> i8*), i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to i8*), i32 1)
> +// CHECK-NEXT:   [[CALL:%.*]] = call i8* @__RTDynamicCast(i8* [[CAST]],
> i32 0, i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUV@@@8" to i8*), i8*
> bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to i8*), i32 1)
>  // CHECK-NEXT:   [[RET:%.*]] = bitcast i8* [[CALL]] to %struct.T*
>  // CHECK-NEXT:   ret %struct.T* [[RET]]
>
> @@ -25,7 +25,7 @@ T* test2(A* x) { return &dynamic_cast<T&>(*x); }
>  // CHECK-NEXT:   [[VBOFFP:%.*]] = getelementptr inbounds i32, i32*
> [[VBTBL]], i32 1
>  // CHECK-NEXT:   [[VBOFFS:%.*]] = load i32, i32* [[VBOFFP]], align 4
>  // CHECK-NEXT:   [[ADJ:%.*]] = getelementptr inbounds i8, i8* [[CAST]],
> i32 [[VBOFFS]]
> -// CHECK-NEXT:   [[CALL:%.*]] = tail call i8* @__RTDynamicCast(i8*
> [[ADJ]], i32 [[VBOFFS]], i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUA@@@8"
> to i8*), i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to i8*),
> i32 1)
> +// CHECK-NEXT:   [[CALL:%.*]] = call i8* @__RTDynamicCast(i8* [[ADJ]],
> i32 [[VBOFFS]], i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUA@@@8" to
> i8*), i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to i8*), i32 1)
>  // CHECK-NEXT:   [[RET:%.*]] = bitcast i8* [[CALL]] to %struct.T*
>  // CHECK-NEXT:   ret %struct.T* [[RET]]
>
> @@ -39,14 +39,14 @@ T* test3(B* x) { return &dynamic_cast<T&>(*x); }
>  // CHECK-NEXT:   [[VBOFFS:%.*]] = load i32, i32* [[VBOFFP]], align 4
>  // CHECK-NEXT:   [[DELTA:%.*]] = add nsw i32 [[VBOFFS]], 4
>  // CHECK-NEXT:   [[ADJ:%.*]] = getelementptr inbounds i8, i8* [[VOIDP]],
> i32 [[DELTA]]
> -// CHECK-NEXT:   [[CALL:%.*]] = tail call i8* @__RTDynamicCast(i8*
> [[ADJ]], i32 [[DELTA]], i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUB@@@8"
> to i8*), i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to i8*),
> i32 1)
> +// CHECK-NEXT:   [[CALL:%.*]] = call i8* @__RTDynamicCast(i8* [[ADJ]],
> i32 [[DELTA]], i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUB@@@8" to
> i8*), i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to i8*), i32 1)
>  // CHECK-NEXT:   [[RET:%.*]] = bitcast i8* [[CALL]] to %struct.T*
>  // CHECK-NEXT:   ret %struct.T* [[RET]]
>
>  T* test4(V* x) { return dynamic_cast<T*>(x); }
>  // CHECK-LABEL: define dso_local %struct.T* @"?test4@@YAPAUT@@PAUV@@@Z"(%struct.V*
> %x)
>  // CHECK:        [[CAST:%.*]] = bitcast %struct.V* %x to i8*
> -// CHECK-NEXT:   [[CALL:%.*]] = tail call i8* @__RTDynamicCast(i8*
> [[CAST]], i32 0, i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUV@@@8" to
> i8*), i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to i8*), i32 0)
> +// CHECK-NEXT:   [[CALL:%.*]] = call i8* @__RTDynamicCast(i8* [[CAST]],
> i32 0, i8* bitcast (%rtti.TypeDescriptor7* @"??_R0?AUV@@@8" to i8*), i8*
> bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to i8*), i32 0)
>  // CHECK-NEXT:   [[RET:%.*]] = bitcast i8* [[CALL]] to %struct.T*
>  // CHECK-NEXT:   ret %struct.T* [[RET]]
>
> @@ -60,7 +60,7 @@ T* test5(A* x) { return dynamic_cast<T*>(x); }
>  // CHECK-NEXT:   [[VBOFFP:%.*]] = getelementptr inbounds i32, i32*
> [[VBTBL]], i32 1
>  // CHECK-NEXT:   [[VBOFFS:%.*]] = load i32, i32* [[VBOFFP]], align 4
>  // CHECK-NEXT:   [[ADJ:%.*]] = getelementptr inbounds i8, i8* [[VOIDP]],
> i32 [[VBOFFS]]
> -// CHECK-NEXT:   [[CALL:%.*]] = tail call i8* @__RTDynamicCast(i8*
> nonnull [[ADJ]], i32 [[VBOFFS]], i8* {{.*}}bitcast (%rtti.TypeDescriptor7*
> @"??_R0?AUA@@@8" to i8*), i8* {{.*}}bitcast (%rtti.TypeDescriptor7*
> @"??_R0?AUT@@@8" to i8*), i32 0)
> +// CHECK-NEXT:   [[CALL:%.*]] = call i8* @__RTDynamicCast(i8* nonnull
> [[ADJ]], i32 [[VBOFFS]], i8* {{.*}}bitcast (%rtti.TypeDescriptor7*
> @"??_R0?AUA@@@8" to i8*), i8* {{.*}}bitcast (%rtti.TypeDescriptor7*
> @"??_R0?AUT@@@8" to i8*), i32 0)
>  // CHECK-NEXT:   [[RES:%.*]] = bitcast i8* [[CALL]] to %struct.T*
>  // CHECK-NEXT:   br label
>  // CHECK:        [[RET:%.*]] = phi %struct.T*
> @@ -78,7 +78,7 @@ T* test6(B* x) { return dynamic_cast<T*>(x); }
>  // CHECK-NEXT:   [[VBOFFS:%.*]] = load i32, i32* [[VBOFFP]], align 4
>  // CHECK-NEXT:   [[DELTA:%.*]] = add nsw i32 [[VBOFFS]], 4
>  // CHECK-NEXT:   [[ADJ:%.*]] = getelementptr inbounds i8, i8* [[CAST]],
> i32 [[DELTA]]
> -// CHECK-NEXT:   [[CALL:%.*]] = tail call i8* @__RTDynamicCast(i8*
> [[ADJ]], i32 [[DELTA]], i8* {{.*}}bitcast (%rtti.TypeDescriptor7*
> @"??_R0?AUB@@@8" to i8*), i8* {{.*}}bitcast (%rtti.TypeDescriptor7*
> @"??_R0?AUT@@@8" to i8*), i32 0)
> +// CHECK-NEXT:   [[CALL:%.*]] = call i8* @__RTDynamicCast(i8* [[ADJ]],
> i32 [[DELTA]], i8* {{.*}}bitcast (%rtti.TypeDescriptor7* @"??_R0?AUB@@@8"
> to i8*), i8* {{.*}}bitcast (%rtti.TypeDescriptor7* @"??_R0?AUT@@@8" to
> i8*), i32 0)
>  // CHECK-NEXT:   [[RES:%.*]] = bitcast i8* [[CALL]] to %struct.T*
>  // CHECK-NEXT:   br label
>  // CHECK:        [[RET:%.*]] = phi %struct.T*
> @@ -87,7 +87,7 @@ T* test6(B* x) { return dynamic_cast<T*>(x); }
>  void* test7(V* x) { return dynamic_cast<void*>(x); }
>  // CHECK-LABEL: define dso_local i8* @"?test7@@YAPAXPAUV@@@Z"(%struct.V*
> %x)
>  // CHECK:        [[CAST:%.*]] = bitcast %struct.V* %x to i8*
> -// CHECK-NEXT:   [[RET:%.*]] = tail call i8* @__RTCastToVoid(i8* [[CAST]])
> +// CHECK-NEXT:   [[RET:%.*]] = call i8* @__RTCastToVoid(i8* [[CAST]])
>  // CHECK-NEXT:   ret i8* [[RET]]
>
>  void* test8(A* x) { return dynamic_cast<void*>(x); }
> @@ -100,7 +100,7 @@ void* test8(A* x) { return dynamic_cast<void*>(x); }
>  // CHECK-NEXT:   [[VBOFFP:%.*]] = getelementptr inbounds i32, i32*
> [[VBTBL]], i32 1
>  // CHECK-NEXT:   [[VBOFFS:%.*]] = load i32, i32* [[VBOFFP]], align 4
>  // CHECK-NEXT:   [[ADJ:%.*]] = getelementptr inbounds i8, i8* [[VOIDP]],
> i32 [[VBOFFS]]
> -// CHECK-NEXT:   [[RES:%.*]] = tail call i8* @__RTCastToVoid(i8* nonnull
> [[ADJ]])
> +// CHECK-NEXT:   [[RES:%.*]] = call i8* @__RTCastToVoid(i8* nonnull
> [[ADJ]])
>  // CHECK-NEXT:   br label
>  // CHECK:        [[RET:%.*]] = phi i8*
>  // CHECK-NEXT:   ret i8* [[RET]]
> @@ -117,7 +117,7 @@ void* test9(B* x) { return dynamic_cast<void*>(x); }
>  // CHECK-NEXT:   [[VBOFFS:%.*]] = load i32, i32* [[VBOFFP]], align 4
>  // CHECK-NEXT:   [[DELTA:%.*]] = add nsw i32 [[VBOFFS]], 4
>  // CHECK-NEXT:   [[ADJ:%.*]] = getelementptr inbounds i8, i8* [[CAST]],
> i32 [[DELTA]]
> -// CHECK-NEXT:   [[CALL:%.*]] = tail call i8* @__RTCastToVoid(i8* [[ADJ]])
> +// CHECK-NEXT:   [[CALL:%.*]] = call i8* @__RTCastToVoid(i8* [[ADJ]])
>  // CHECK-NEXT:   br label
>  // CHECK:        [[RET:%.*]] = phi i8*
>  // CHECK-NEXT:   ret i8* [[RET]]
>
> diff  --git a/clang/test/CodeGenCXX/microsoft-abi-typeid.cpp
> b/clang/test/CodeGenCXX/microsoft-abi-typeid.cpp
> index 848e280cd9fe..f3bd7e6fd6c8 100644
> --- a/clang/test/CodeGenCXX/microsoft-abi-typeid.cpp
> +++ b/clang/test/CodeGenCXX/microsoft-abi-typeid.cpp
> @@ -25,10 +25,10 @@ const std::type_info* test2_typeid() { return
> &typeid(&a); }
>
>  const std::type_info* test3_typeid() { return &typeid(*fn()); }
>  // CHECK-LABEL: define dso_local %struct.type_info* @"?test3_typeid@
> @YAPBUtype_info@@XZ"()
> -// CHECK:        [[CALL:%.*]] = tail call %struct.A* @"?fn@@YAPAUA@@XZ"()
> +// CHECK:        [[CALL:%.*]] = call %struct.A* @"?fn@@YAPAUA@@XZ"()
>  // CHECK-NEXT:   [[CMP:%.*]] = icmp eq %struct.A* [[CALL]], null
>  // CHECK-NEXT:   br i1 [[CMP]]
> -// CHECK:        tail call i8* @__RTtypeid(i8* null)
> +// CHECK:        call i8* @__RTtypeid(i8* null)
>  // CHECK-NEXT:   unreachable
>  // CHECK:        [[THIS:%.*]] = bitcast %struct.A* [[CALL]] to i8*
>  // CHECK-NEXT:   [[VBTBLP:%.*]] = getelementptr %struct.A, %struct.A*
> [[CALL]], i32 0, i32 0
> @@ -36,7 +36,7 @@ const std::type_info* test3_typeid() { return
> &typeid(*fn()); }
>  // CHECK-NEXT:   [[VBSLOT:%.*]] = getelementptr inbounds i32, i32*
> [[VBTBL]], i32 1
>  // CHECK-NEXT:   [[VBASE_OFFS:%.*]] = load i32, i32* [[VBSLOT]], align 4
>  // CHECK-NEXT:   [[ADJ:%.*]] = getelementptr inbounds i8, i8* [[THIS]],
> i32 [[VBASE_OFFS]]
> -// CHECK-NEXT:   [[RT:%.*]] = tail call i8* @__RTtypeid(i8* nonnull
> [[ADJ]])
> +// CHECK-NEXT:   [[RT:%.*]] = call i8* @__RTtypeid(i8* nonnull [[ADJ]])
>  // CHECK-NEXT:   [[RET:%.*]] = bitcast i8* [[RT]] to %struct.type_info*
>  // CHECK-NEXT:   ret %struct.type_info* [[RET]]
>
> @@ -46,7 +46,7 @@ const std::type_info* test4_typeid() { return
> &typeid(b); }
>
>  const std::type_info* test5_typeid() { return &typeid(v); }
>  // CHECK: define dso_local %struct.type_info* @"?test5_typeid@
> @YAPBUtype_info@@XZ"()
> -// CHECK:        [[RT:%.*]] = tail call i8* @__RTtypeid(i8* bitcast
> (%struct.V* @"?v@@3UV@@A" to i8*))
> +// CHECK:        [[RT:%.*]] = call i8* @__RTtypeid(i8* bitcast
> (%struct.V* @"?v@@3UV@@A" to i8*))
>  // CHECK-NEXT:   [[RET:%.*]] = bitcast i8* [[RT]] to %struct.type_info*
>  // CHECK-NEXT:   ret %struct.type_info* [[RET]]
>
>
> diff  --git a/clang/test/CodeGenCXX/nrvo.cpp
> b/clang/test/CodeGenCXX/nrvo.cpp
> index aab26890ea98..74a5af765d13 100644
> --- a/clang/test/CodeGenCXX/nrvo.cpp
> +++ b/clang/test/CodeGenCXX/nrvo.cpp
> @@ -33,13 +33,13 @@ X test0() {
>  // CHECK-LABEL: define void @_Z5test1b(
>  // CHECK-EH-LABEL: define void @_Z5test1b(
>  X test1(bool B) {
> -  // CHECK:      tail call {{.*}} @_ZN1XC1Ev
> +  // CHECK:      call {{.*}} @_ZN1XC1Ev
>    // CHECK-NEXT: ret void
>    X x;
>    if (B)
>      return (x);
>    return x;
> -  // CHECK-EH:      tail call {{.*}} @_ZN1XC1Ev
> +  // CHECK-EH:      call {{.*}} @_ZN1XC1Ev
>    // CHECK-EH-NEXT: ret void
>  }
>
> @@ -130,7 +130,7 @@ X test2(bool B) {
>
>  // CHECK-LABEL: define void @_Z5test3b
>  X test3(bool B) {
> -  // CHECK: tail call {{.*}} @_ZN1XC1Ev
> +  // CHECK: call {{.*}} @_ZN1XC1Ev
>    // CHECK-NOT: call {{.*}} @_ZN1XC1ERKS_
>    // CHECK: call {{.*}} @_ZN1XC1Ev
>    // CHECK: call {{.*}} @_ZN1XC1ERKS_
> @@ -148,14 +148,14 @@ extern "C" void exit(int) throw();
>  // CHECK-LABEL: define void @_Z5test4b
>  X test4(bool B) {
>    {
> -    // CHECK: tail call {{.*}} @_ZN1XC1Ev
> +    // CHECK: call {{.*}} @_ZN1XC1Ev
>      X x;
>      // CHECK: br i1
>      if (B)
>        return x;
>    }
> -  // CHECK: tail call {{.*}} @_ZN1XD1Ev
> -  // CHECK: tail call void @exit(i32 1)
> +  // CHECK: call {{.*}} @_ZN1XD1Ev
> +  // CHECK: call void @exit(i32 1)
>    exit(1);
>  }
>
> @@ -191,7 +191,7 @@ X test6() {
>
>  // CHECK-LABEL: define void @_Z5test7b
>  X test7(bool b) {
> -  // CHECK: tail call {{.*}} @_ZN1XC1Ev
> +  // CHECK: call {{.*}} @_ZN1XC1Ev
>    // CHECK-NEXT: ret
>    if (b) {
>      X x;
> @@ -202,7 +202,7 @@ X test7(bool b) {
>
>  // CHECK-LABEL: define void @_Z5test8b
>  X test8(bool b) {
> -  // CHECK: tail call {{.*}} @_ZN1XC1Ev
> +  // CHECK: call {{.*}} @_ZN1XC1Ev
>    // CHECK-NEXT: ret
>    if (b) {
>      X x;
> @@ -218,6 +218,6 @@ Y<int> test9() {
>  }
>
>  // CHECK-LABEL: define linkonce_odr void @_ZN1YIiE1fEv
> -// CHECK: tail call {{.*}} @_ZN1YIiEC1Ev
> +// CHECK: call {{.*}} @_ZN1YIiEC1Ev
>
>  // CHECK-EH-03: attributes [[NR_NUW]] = { noreturn nounwind }
>
> diff  --git a/clang/test/CodeGenCXX/stack-reuse.cpp
> b/clang/test/CodeGenCXX/stack-reuse.cpp
> index 8325604391ae..35dcb5b349c3 100644
> --- a/clang/test/CodeGenCXX/stack-reuse.cpp
> +++ b/clang/test/CodeGenCXX/stack-reuse.cpp
> @@ -1,4 +1,4 @@
> -// RUN: %clang_cc1 -triple armv7-unknown-linux-gnueabihf %s -o -
> -emit-llvm -O1 | FileCheck %s
> +// RUN: %clang_cc1 -triple armv7-unknown-linux-gnueabihf %s -o -
> -emit-llvm -O2 | FileCheck %s
>
>  // Stack should be reused when possible, no need to allocate two separate
> slots
>  // if they have disjoint lifetime.
>
> diff  --git a/clang/test/CodeGenCXX/wasm-args-returns.cpp
> b/clang/test/CodeGenCXX/wasm-args-returns.cpp
> index 5718223f9f74..c547eb85390d 100644
> --- a/clang/test/CodeGenCXX/wasm-args-returns.cpp
> +++ b/clang/test/CodeGenCXX/wasm-args-returns.cpp
> @@ -19,8 +19,8 @@ test(one_field);
>  // CHECK: define double @_Z7forward9one_field(double returned %{{.*}})
>  //
>  // CHECK: define void @_Z14test_one_fieldv()
> -// CHECK: %[[call:.*]] = tail call double @_Z13def_one_fieldv()
> -// CHECK: tail call void @_Z3use9one_field(double %[[call]])
> +// CHECK: %[[call:.*]] = call double @_Z13def_one_fieldv()
> +// CHECK: call void @_Z3use9one_field(double %[[call]])
>  // CHECK: ret void
>  //
>  // CHECK: declare void @_Z3use9one_field(double)
> @@ -82,8 +82,8 @@ test(empty);
>  // CHECK: define void @_Z7forward5empty()
>  //
>  // CHECK: define void @_Z10test_emptyv()
> -// CHECK: tail call void @_Z9def_emptyv()
> -// CHECK: tail call void @_Z3use5empty()
> +// CHECK: call void @_Z9def_emptyv()
> +// CHECK: call void @_Z3use5empty()
>  // CHECK: ret void
>  //
>  // CHECK: declare void @_Z3use5empty()
> @@ -96,8 +96,8 @@ test(one_bitfield);
>  // CHECK: define i32 @_Z7forward12one_bitfield(i32 returned %{{.*}})
>  //
>  // CHECK: define void @_Z17test_one_bitfieldv()
> -// CHECK: %[[call:.*]] = tail call i32 @_Z16def_one_bitfieldv()
> -// CHECK: tail call void @_Z3use12one_bitfield(i32 %[[call]])
> +// CHECK: %[[call:.*]] = call i32 @_Z16def_one_bitfieldv()
> +// CHECK: call void @_Z3use12one_bitfield(i32 %[[call]])
>  // CHECK: ret void
>  //
>  // CHECK: declare void @_Z3use12one_bitfield(i32)
>
> diff  --git a/clang/test/CodeGenObjCXX/arc-blocks.mm
> b/clang/test/CodeGenObjCXX/arc-blocks.mm
> index 24697cf1bd37..d29491ed077e 100644
> --- a/clang/test/CodeGenObjCXX/arc-blocks.mm
> +++ b/clang/test/CodeGenObjCXX/arc-blocks.mm
> @@ -122,7 +122,7 @@ void foo() {
>  // CHECK: call void @__clang_call_terminate(
>
>  // CHECK-O1-LABEL: define linkonce_odr hidden void
> @__copy_helper_block_ea8_32s40r48w56c15_ZTSN5test12S0E60c15_ZTSN5test12S0E(
> -// CHECK-O1: tail call void @llvm.objc.release({{.*}}) {{.*}}
> !clang.imprecise_release
> +// CHECK-O1: call void @llvm.objc.release({{.*}}) {{.*}}
> !clang.imprecise_release
>  // CHECK-NOEXCP: define linkonce_odr hidden void
> @__copy_helper_block_8_32s40r48w56c15_ZTSN5test12S0E60c15_ZTSN5test12S0E(
>
>  // CHECK: define linkonce_odr hidden void
> @__destroy_helper_block_ea8_32s40r48w56c15_ZTSN5test12S0E60c15_ZTSN5test12S0E(
> @@ -170,8 +170,8 @@ void foo() {
>  // CHECK: call void @__clang_call_terminate(
>
>  // CHECK-O1-LABEL: define linkonce_odr hidden void
> @__destroy_helper_block_ea8_32s40r48w56c15_ZTSN5test12S0E60c15_ZTSN5test12S0E(
> -// CHECK-O1: tail call void @llvm.objc.release({{.*}}) {{.*}}
> !clang.imprecise_release
> -// CHECK-O1: tail call void @llvm.objc.release({{.*}}) {{.*}}
> !clang.imprecise_release
> +// CHECK-O1: call void @llvm.objc.release({{.*}}) {{.*}}
> !clang.imprecise_release
> +// CHECK-O1: call void @llvm.objc.release({{.*}}) {{.*}}
> !clang.imprecise_release
>  // CHECK-NOEXCP: define linkonce_odr hidden void
> @__destroy_helper_block_8_32s40r48w56c15_ZTSN5test12S0E60c15_ZTSN5test12S0E(
>
>  namespace {
>
> diff  --git a/clang/test/CodeGenObjCXX/nrvo.mm b/clang/test/CodeGenObjCXX/
> nrvo.mm
> index 1ad5f79ad12e..a02b38b820a3 100644
> --- a/clang/test/CodeGenObjCXX/nrvo.mm
> +++ b/clang/test/CodeGenObjCXX/nrvo.mm
> @@ -14,7 +14,7 @@ @implementation NRVO
>  // CHECK: define internal void @"\01-[NRVO getNRVO]"
>  - (X)getNRVO {
>    X x;
> -  // CHECK: tail call void @_ZN1XC1Ev
> +  // CHECK: call void @_ZN1XC1Ev
>    // CHECK-NEXT: ret void
>    return x;
>  }
> @@ -24,7 +24,7 @@ X blocksNRVO() {
>    return ^{
>      // CHECK-LABEL: define internal void @___Z10blocksNRVOv_block_invoke
>      X x;
> -    // CHECK: tail call void @_ZN1XC1Ev
> +    // CHECK: call void @_ZN1XC1Ev
>      // CHECK-NEXT: ret void
>      return x;
>    }() ;
>
> diff  --git
> a/clang/test/Lexer/minimize_source_to_dependency_directives_invalid_error.c
> b/clang/test/Lexer/minimize_source_to_dependency_directives_invalid_error.c
> index c4a4cf3d9752..020912a4965d 100644
> ---
> a/clang/test/Lexer/minimize_source_to_dependency_directives_invalid_error.c
> +++
> b/clang/test/Lexer/minimize_source_to_dependency_directives_invalid_error.c
> @@ -1,16 +1,16 @@
> -// Test CF+LF are properly handled along with quoted, multi-line #error
> -// RUN: %clang_cc1 -DOTHER -print-dependency-directives-minimized-source
> %s 2>&1 | FileCheck %s
> -
> -#ifndef TEST
> -#error "message \
> -   more message \
> -   even more"
> -#endif
> -
> -#ifdef OTHER
> -#include <string>
> -#endif
> -
> -// CHECK:      #ifdef OTHER
> -// CHECK-NEXT: #include <string>
> -// CHECK-NEXT: #endif
> +// Test CF+LF are properly handled along with quoted, multi-line #error
> +// RUN: %clang_cc1 -DOTHER -print-dependency-directives-minimized-source
> %s 2>&1 | FileCheck %s
> +
> +#ifndef TEST
> +#error "message \
> +   more message \
> +   even more"
> +#endif
> +
> +#ifdef OTHER
> +#include <string>
> +#endif
> +
> +// CHECK:      #ifdef OTHER
> +// CHECK-NEXT: #include <string>
> +// CHECK-NEXT: #endif
>
> diff  --git a/clang/test/PCH/no-escaping-block-tail-calls.cpp
> b/clang/test/PCH/no-escaping-block-tail-calls.cpp
> index 5ae8108f387d..bf197267d67d 100644
> --- a/clang/test/PCH/no-escaping-block-tail-calls.cpp
> +++ b/clang/test/PCH/no-escaping-block-tail-calls.cpp
> @@ -1,5 +1,5 @@
> -// RUN: %clang_cc1 -x c++-header -triple x86_64-apple-darwin11 -emit-pch
> -O1 -fblocks -fno-escaping-block-tail-calls -o %t
> %S/no-escaping-block-tail-calls.h
> -// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -include-pch %t
> -emit-llvm -O1 -fblocks -fno-escaping-block-tail-calls -o - %s | FileCheck
> %s
> +// RUN: %clang_cc1 -x c++-header -triple x86_64-apple-darwin11 -emit-pch
> -O2 -fblocks -fno-escaping-block-tail-calls -o %t
> %S/no-escaping-block-tail-calls.h
> +// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -include-pch %t
> -emit-llvm -O2 -fblocks -fno-escaping-block-tail-calls -o - %s | FileCheck
> %s
>
>  // Check that -fno-escaping-block-tail-calls doesn't disable tail-call
>  // optimization if the block is non-escaping.
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq1/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq1/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq1/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq1/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq2/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq2/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq2/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/ambiguous_tail_call_seq2/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_call_site/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_call_site/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_call_site/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_call_site/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_paths_to_common_sink/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_paths_to_common_sink/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_paths_to_common_sink/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_paths_to_common_sink/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_tail_call_seq/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_tail_call_seq/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_tail_call_seq/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/disambiguate_tail_call_seq/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/inlining_and_tail_calls/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/inlining_and_tail_calls/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/inlining_and_tail_calls/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/inlining_and_tail_calls/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/sbapi_support/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/sbapi_support/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/sbapi_support/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/sbapi_support/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_message/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_message/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_message/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_message/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_or_return/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_or_return/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_or_return/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/thread_step_out_or_return/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/unambiguous_sequence/Makefile
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/unambiguous_sequence/Makefile
> index 48342e8e3afb..666a6c365546 100644
> ---
> a/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/unambiguous_sequence/Makefile
> +++
> b/lldb/packages/Python/lldbsuite/test/functionalities/tail_call_frames/unambiguous_sequence/Makefile
> @@ -1,4 +1,4 @@
>  CXX_SOURCES := main.cpp
>
> -CXXFLAGS_EXTRAS := -g -O1 -glldb
> +CXXFLAGS_EXTRAS := -g -O2 -glldb
>  include Makefile.rules
>
> diff  --git a/llvm/include/llvm/Passes/PassBuilder.h
> b/llvm/include/llvm/Passes/PassBuilder.h
> index f73e4b42dd4b..7fe03f72305b 100644
> --- a/llvm/include/llvm/Passes/PassBuilder.h
> +++ b/llvm/include/llvm/Passes/PassBuilder.h
> @@ -151,10 +151,6 @@ class PassBuilder {
>
>      /// Optimize quickly without destroying debuggability.
>      ///
> -    /// FIXME: The current and historical behavior of this level does
> *not*
> -    /// agree with this goal, but we would like to move toward this goal
> in the
> -    /// future.
> -    ///
>      /// This level is tuned to produce a result from the optimizer as
> quickly
>      /// as possible and to avoid destroying debuggability. This tends to
> result
>      /// in a very good development mode where the compiled code will be
> @@ -164,9 +160,9 @@ class PassBuilder {
>      /// debugging of the resulting binary.
>      ///
>      /// As an example, complex loop transformations such as versioning,
> -    /// vectorization, or fusion might not make sense here due to the
> degree to
> -    /// which the executed code would
> diff er from the source code, and the
> -    /// potential compile time cost.
> +    /// vectorization, or fusion don't make sense here due to the degree
> to
> +    /// which the executed code
> diff ers from the source code, and the compile time
> +    /// cost.
>      O1,
>
>      /// Optimize for fast execution as much as possible without triggering
>
> diff  --git a/llvm/lib/Passes/PassBuilder.cpp
> b/llvm/lib/Passes/PassBuilder.cpp
> index 5896dbf5bb98..b22921b2b878 100644
> --- a/llvm/lib/Passes/PassBuilder.cpp
> +++ b/llvm/lib/Passes/PassBuilder.cpp
> @@ -400,21 +400,25 @@
> PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level,
>    FPM.addPass(EarlyCSEPass(true /* Enable mem-ssa. */));
>
>    // Hoisting of scalars and load expressions.
> -  if (EnableGVNHoist)
> -    FPM.addPass(GVNHoistPass());
> -
> -  // Global value numbering based sinking.
> -  if (EnableGVNSink) {
> -    FPM.addPass(GVNSinkPass());
> -    FPM.addPass(SimplifyCFGPass());
> +  if (Level > O1) {
> +    if (EnableGVNHoist)
> +      FPM.addPass(GVNHoistPass());
> +
> +    // Global value numbering based sinking.
> +    if (EnableGVNSink) {
> +      FPM.addPass(GVNSinkPass());
> +      FPM.addPass(SimplifyCFGPass());
> +    }
>    }
>
>    // Speculative execution if the target has divergent branches;
> otherwise nop.
> -  FPM.addPass(SpeculativeExecutionPass());
> +  if (Level > O1) {
> +    FPM.addPass(SpeculativeExecutionPass());
>
> -  // Optimize based on known information about branches, and cleanup
> afterward.
> -  FPM.addPass(JumpThreadingPass());
> -  FPM.addPass(CorrelatedValuePropagationPass());
> +    // Optimize based on known information about branches, and cleanup
> afterward.
> +    FPM.addPass(JumpThreadingPass());
> +    FPM.addPass(CorrelatedValuePropagationPass());
> +  }
>    FPM.addPass(SimplifyCFGPass());
>    if (Level == O3)
>      FPM.addPass(AggressiveInstCombinePass());
> @@ -428,10 +432,12 @@
> PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level,
>    // For PGO use pipeline, try to optimize memory intrinsics such as
> memcpy
>    // using the size value profile. Don't perform this when optimizing for
> size.
>    if (PGOOpt && PGOOpt->Action == PGOOptions::IRUse &&
> -      !isOptimizingForSize(Level))
> +      !isOptimizingForSize(Level) && Level > O1)
>      FPM.addPass(PGOMemOPSizeOpt());
>
> -  FPM.addPass(TailCallElimPass());
> +  // TODO: Investigate the cost/benefit of tail call elimination on
> debugging.
> +  if (Level > O1)
> +    FPM.addPass(TailCallElimPass());
>    FPM.addPass(SimplifyCFGPass());
>
>    // Form canonically associated expression trees, and simplify the trees
> using
> @@ -458,6 +464,7 @@
> PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level,
>
>    // Rotate Loop - disable header duplication at -Oz
>    LPM1.addPass(LoopRotatePass(Level != Oz));
> +  // TODO: Investigate promotion cap for O1.
>    LPM1.addPass(LICMPass(PTO.LicmMssaOptCap,
> PTO.LicmMssaNoAccForPromotionCap));
>    LPM1.addPass(SimpleLoopUnswitchPass());
>    LPM2.addPass(IndVarSimplifyPass());
> @@ -525,18 +532,21 @@
> PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level,
>
>    // Re-consider control flow based optimizations after redundancy
> elimination,
>    // redo DCE, etc.
> -  FPM.addPass(JumpThreadingPass());
> -  FPM.addPass(CorrelatedValuePropagationPass());
> -  FPM.addPass(DSEPass());
> -  FPM.addPass(createFunctionToLoopPassAdaptor(
> -      LICMPass(PTO.LicmMssaOptCap, PTO.LicmMssaNoAccForPromotionCap),
> -      EnableMSSALoopDependency, DebugLogging));
> +  if (Level > O1) {
> +    FPM.addPass(JumpThreadingPass());
> +    FPM.addPass(CorrelatedValuePropagationPass());
> +    FPM.addPass(DSEPass());
> +    FPM.addPass(createFunctionToLoopPassAdaptor(
> +        LICMPass(PTO.LicmMssaOptCap, PTO.LicmMssaNoAccForPromotionCap),
> +        EnableMSSALoopDependency, DebugLogging));
> +  }
>
>    for (auto &C : ScalarOptimizerLateEPCallbacks)
>      C(FPM, Level);
>
>    // Finally, do an expensive DCE pass to catch all the dead code exposed
> by
>    // the simplifications and basic cleanup after all the simplifications.
> +  // TODO: Investigate if this is too expensive.
>    FPM.addPass(ADCEPass());
>    FPM.addPass(SimplifyCFGPass());
>    FPM.addPass(InstCombinePass());
>
> diff  --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
> b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
> index 5314a8219b1e..81424229c3bf 100644
> --- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
> +++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
> @@ -320,19 +320,26 @@ void
> PassManagerBuilder::addFunctionSimplificationPasses(
>      legacy::PassManagerBase &MPM) {
>    // Start of function pass.
>    // Break up aggregate allocas, using SSAUpdater.
> +  assert(OptLevel >= 1 && "Calling function optimizer with no
> optimization level!");
>    MPM.add(createSROAPass());
>    MPM.add(createEarlyCSEPass(true /* Enable mem-ssa. */)); // Catch
> trivial redundancies
> -  if (EnableGVNHoist)
> -    MPM.add(createGVNHoistPass());
> -  if (EnableGVNSink) {
> -    MPM.add(createGVNSinkPass());
> -    MPM.add(createCFGSimplificationPass());
> +
> +  if (OptLevel > 1) {
> +    if (EnableGVNHoist)
> +      MPM.add(createGVNHoistPass());
> +    if (EnableGVNSink) {
> +      MPM.add(createGVNSinkPass());
> +      MPM.add(createCFGSimplificationPass());
> +    }
>    }
>
> -  // Speculative execution if the target has divergent branches;
> otherwise nop.
> -  MPM.add(createSpeculativeExecutionIfHasBranchDivergencePass());
> -  MPM.add(createJumpThreadingPass());         // Thread jumps.
> -  MPM.add(createCorrelatedValuePropagationPass()); // Propagate
> conditionals
> +  if (OptLevel > 1) {
> +    // Speculative execution if the target has divergent branches;
> otherwise nop.
> +    MPM.add(createSpeculativeExecutionIfHasBranchDivergencePass());
> +
> +    MPM.add(createJumpThreadingPass());         // Thread jumps.
> +    MPM.add(createCorrelatedValuePropagationPass()); // Propagate
> conditionals
> +  }
>    MPM.add(createCFGSimplificationPass());     // Merge & remove BBs
>    // Combine silly seq's
>    if (OptLevel > 2)
> @@ -346,8 +353,10 @@ void
> PassManagerBuilder::addFunctionSimplificationPasses(
>    if (SizeLevel == 0)
>      MPM.add(createPGOMemOPSizeOptLegacyPass());
>
> -  MPM.add(createTailCallEliminationPass()); // Eliminate tail calls
> -  MPM.add(createCFGSimplificationPass());     // Merge & remove BBs
> +  // TODO: Investigate the cost/benefit of tail call elimination on
> debugging.
> +  if (OptLevel > 1)
> +    MPM.add(createTailCallEliminationPass()); // Eliminate tail calls
> +  MPM.add(createCFGSimplificationPass());      // Merge & remove BBs
>    MPM.add(createReassociatePass());           // Reassociate expressions
>
>    // Begin the loop pass pipeline.
> @@ -360,6 +369,7 @@ void
> PassManagerBuilder::addFunctionSimplificationPasses(
>    }
>    // Rotate Loop - disable header duplication at -Oz
>    MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
> +  // TODO: Investigate promotion cap for O1.
>    MPM.add(createLICMPass(LicmMssaOptCap, LicmMssaNoAccForPromotionCap));
>    if (EnableSimpleLoopUnswitch)
>      MPM.add(createSimpleLoopUnswitchLegacyPass());
> @@ -402,16 +412,19 @@ void
> PassManagerBuilder::addFunctionSimplificationPasses(
>    // opened up by them.
>    addInstructionCombiningPass(MPM);
>    addExtensionsToPM(EP_Peephole, MPM);
> -  MPM.add(createJumpThreadingPass());         // Thread jumps
> -  MPM.add(createCorrelatedValuePropagationPass());
> -  MPM.add(createDeadStoreEliminationPass());  // Delete dead stores
> -  MPM.add(createLICMPass(LicmMssaOptCap, LicmMssaNoAccForPromotionCap));
> +  if (OptLevel > 1) {
> +    MPM.add(createJumpThreadingPass());         // Thread jumps
> +    MPM.add(createCorrelatedValuePropagationPass());
> +    MPM.add(createDeadStoreEliminationPass());  // Delete dead stores
> +    MPM.add(createLICMPass(LicmMssaOptCap, LicmMssaNoAccForPromotionCap));
> +  }
>
>    addExtensionsToPM(EP_ScalarOptimizerLate, MPM);
>
>    if (RerollLoops)
>      MPM.add(createLoopRerollPass());
>
> +  // TODO: Investigate if this is too expensive at O1.
>    MPM.add(createAggressiveDCEPass());         // Delete dead instructions
>    MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
>    // Clean up after everything.
> @@ -899,7 +912,8 @@ void
> PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) {
>
>    // LTO provides additional opportunities for tailcall elimination due to
>    // link-time inlining, and visibility of nocapture attribute.
> -  PM.add(createTailCallEliminationPass());
> +  if (OptLevel > 1)
> +    PM.add(createTailCallEliminationPass());
>
>    // Infer attributes on declarations, call sites, arguments, etc.
>    PM.add(createPostOrderFunctionAttrsLegacyPass()); // Add nocapture.
>
> diff  --git a/llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
> b/llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
> index 859f848d228c..682c0679fa24 100644
> --- a/llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
> +++ b/llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll
> @@ -3,17 +3,17 @@
>  ; RUN: opt -S -O1 -mtriple=amdgcn-- -amdgpu-use-native -amdgpu-prelink <
> %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=GCN-NATIVE
> %s
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_sincos
> -; GCN-POSTLINK: tail call fast float @_Z3sinf(
> -; GCN-POSTLINK: tail call fast float @_Z3cosf(
> +; GCN-POSTLINK: call fast float @_Z3sinf(
> +; GCN-POSTLINK: call fast float @_Z3cosf(
>  ; GCN-PRELINK: call fast float @_Z6sincosfPf(
> -; GCN-NATIVE: tail call fast float @_Z10native_sinf(
> -; GCN-NATIVE: tail call fast float @_Z10native_cosf(
> +; GCN-NATIVE: call fast float @_Z10native_sinf(
> +; GCN-NATIVE: call fast float @_Z10native_cosf(
>  define amdgpu_kernel void @test_sincos(float addrspace(1)* nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3sinf(float %tmp)
> +  %call = call fast float @_Z3sinf(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
> -  %call2 = tail call fast float @_Z3cosf(float %tmp)
> +  %call2 = call fast float @_Z3cosf(float %tmp)
>    %arrayidx3 = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    store float %call2, float addrspace(1)* %arrayidx3, align 4
>    ret void
> @@ -24,17 +24,17 @@ declare float @_Z3sinf(float)
>  declare float @_Z3cosf(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_sincos_v2
> -; GCN-POSTLINK: tail call fast <2 x float> @_Z3sinDv2_f(
> -; GCN-POSTLINK: tail call fast <2 x float> @_Z3cosDv2_f(
> +; GCN-POSTLINK: call fast <2 x float> @_Z3sinDv2_f(
> +; GCN-POSTLINK: call fast <2 x float> @_Z3cosDv2_f(
>  ; GCN-PRELINK: call fast <2 x float> @_Z6sincosDv2_fPS_(
> -; GCN-NATIVE: tail call fast <2 x float> @_Z10native_sinDv2_f(
> -; GCN-NATIVE: tail call fast <2 x float> @_Z10native_cosDv2_f(
> +; GCN-NATIVE: call fast <2 x float> @_Z10native_sinDv2_f(
> +; GCN-NATIVE: call fast <2 x float> @_Z10native_cosDv2_f(
>  define amdgpu_kernel void @test_sincos_v2(<2 x float> addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load <2 x float>, <2 x float> addrspace(1)* %a, align 8
> -  %call = tail call fast <2 x float> @_Z3sinDv2_f(<2 x float> %tmp)
> +  %call = call fast <2 x float> @_Z3sinDv2_f(<2 x float> %tmp)
>    store <2 x float> %call, <2 x float> addrspace(1)* %a, align 8
> -  %call2 = tail call fast <2 x float> @_Z3cosDv2_f(<2 x float> %tmp)
> +  %call2 = call fast <2 x float> @_Z3cosDv2_f(<2 x float> %tmp)
>    %arrayidx3 = getelementptr inbounds <2 x float>, <2 x float>
> addrspace(1)* %a, i64 1
>    store <2 x float> %call2, <2 x float> addrspace(1)* %arrayidx3, align 8
>    ret void
> @@ -45,20 +45,20 @@ declare <2 x float> @_Z3sinDv2_f(<2 x float>)
>  declare <2 x float> @_Z3cosDv2_f(<2 x float>)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_sincos_v3
> -; GCN-POSTLINK: tail call fast <3 x float> @_Z3sinDv3_f(
> -; GCN-POSTLINK: tail call fast <3 x float> @_Z3cosDv3_f(
> +; GCN-POSTLINK: call fast <3 x float> @_Z3sinDv3_f(
> +; GCN-POSTLINK: call fast <3 x float> @_Z3cosDv3_f(
>  ; GCN-PRELINK: call fast <3 x float> @_Z6sincosDv3_fPS_(
> -; GCN-NATIVE: tail call fast <3 x float> @_Z10native_sinDv3_f(
> -; GCN-NATIVE: tail call fast <3 x float> @_Z10native_cosDv3_f(
> +; GCN-NATIVE: call fast <3 x float> @_Z10native_sinDv3_f(
> +; GCN-NATIVE: call fast <3 x float> @_Z10native_cosDv3_f(
>  define amdgpu_kernel void @test_sincos_v3(<3 x float> addrspace(1)*
> nocapture %a) {
>  entry:
>    %castToVec4 = bitcast <3 x float> addrspace(1)* %a to <4 x float>
> addrspace(1)*
>    %loadVec4 = load <4 x float>, <4 x float> addrspace(1)* %castToVec4,
> align 16
>    %extractVec4 = shufflevector <4 x float> %loadVec4, <4 x float> undef,
> <3 x i32> <i32 0, i32 1, i32 2>
> -  %call = tail call fast <3 x float> @_Z3sinDv3_f(<3 x float>
> %extractVec4)
> +  %call = call fast <3 x float> @_Z3sinDv3_f(<3 x float> %extractVec4)
>    %extractVec6 = shufflevector <3 x float> %call, <3 x float> undef, <4 x
> i32> <i32 0, i32 1, i32 2, i32 undef>
>    store <4 x float> %extractVec6, <4 x float> addrspace(1)* %castToVec4,
> align 16
> -  %call11 = tail call fast <3 x float> @_Z3cosDv3_f(<3 x float>
> %extractVec4)
> +  %call11 = call fast <3 x float> @_Z3cosDv3_f(<3 x float> %extractVec4)
>    %arrayidx12 = getelementptr inbounds <3 x float>, <3 x float>
> addrspace(1)* %a, i64 1
>    %extractVec13 = shufflevector <3 x float> %call11, <3 x float> undef,
> <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
>    %storetmp14 = bitcast <3 x float> addrspace(1)* %arrayidx12 to <4 x
> float> addrspace(1)*
> @@ -71,17 +71,17 @@ declare <3 x float> @_Z3sinDv3_f(<3 x float>)
>  declare <3 x float> @_Z3cosDv3_f(<3 x float>)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_sincos_v4
> -; GCN-POSTLINK: tail call fast <4 x float> @_Z3sinDv4_f(
> -; GCN-POSTLINK: tail call fast <4 x float> @_Z3cosDv4_f(
> +; GCN-POSTLINK: call fast <4 x float> @_Z3sinDv4_f(
> +; GCN-POSTLINK: call fast <4 x float> @_Z3cosDv4_f(
>  ; GCN-PRELINK: call fast <4 x float> @_Z6sincosDv4_fPS_(
> -; GCN-NATIVE: tail call fast <4 x float> @_Z10native_sinDv4_f(
> -; GCN-NATIVE: tail call fast <4 x float> @_Z10native_cosDv4_f(
> +; GCN-NATIVE: call fast <4 x float> @_Z10native_sinDv4_f(
> +; GCN-NATIVE: call fast <4 x float> @_Z10native_cosDv4_f(
>  define amdgpu_kernel void @test_sincos_v4(<4 x float> addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load <4 x float>, <4 x float> addrspace(1)* %a, align 16
> -  %call = tail call fast <4 x float> @_Z3sinDv4_f(<4 x float> %tmp)
> +  %call = call fast <4 x float> @_Z3sinDv4_f(<4 x float> %tmp)
>    store <4 x float> %call, <4 x float> addrspace(1)* %a, align 16
> -  %call2 = tail call fast <4 x float> @_Z3cosDv4_f(<4 x float> %tmp)
> +  %call2 = call fast <4 x float> @_Z3cosDv4_f(<4 x float> %tmp)
>    %arrayidx3 = getelementptr inbounds <4 x float>, <4 x float>
> addrspace(1)* %a, i64 1
>    store <4 x float> %call2, <4 x float> addrspace(1)* %arrayidx3, align 16
>    ret void
> @@ -92,17 +92,17 @@ declare <4 x float> @_Z3sinDv4_f(<4 x float>)
>  declare <4 x float> @_Z3cosDv4_f(<4 x float>)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_sincos_v8
> -; GCN-POSTLINK: tail call fast <8 x float> @_Z3sinDv8_f(
> -; GCN-POSTLINK: tail call fast <8 x float> @_Z3cosDv8_f(
> +; GCN-POSTLINK: call fast <8 x float> @_Z3sinDv8_f(
> +; GCN-POSTLINK: call fast <8 x float> @_Z3cosDv8_f(
>  ; GCN-PRELINK: call fast <8 x float> @_Z6sincosDv8_fPS_(
> -; GCN-NATIVE: tail call fast <8 x float> @_Z10native_sinDv8_f(
> -; GCN-NATIVE: tail call fast <8 x float> @_Z10native_cosDv8_f(
> +; GCN-NATIVE: call fast <8 x float> @_Z10native_sinDv8_f(
> +; GCN-NATIVE: call fast <8 x float> @_Z10native_cosDv8_f(
>  define amdgpu_kernel void @test_sincos_v8(<8 x float> addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load <8 x float>, <8 x float> addrspace(1)* %a, align 32
> -  %call = tail call fast <8 x float> @_Z3sinDv8_f(<8 x float> %tmp)
> +  %call = call fast <8 x float> @_Z3sinDv8_f(<8 x float> %tmp)
>    store <8 x float> %call, <8 x float> addrspace(1)* %a, align 32
> -  %call2 = tail call fast <8 x float> @_Z3cosDv8_f(<8 x float> %tmp)
> +  %call2 = call fast <8 x float> @_Z3cosDv8_f(<8 x float> %tmp)
>    %arrayidx3 = getelementptr inbounds <8 x float>, <8 x float>
> addrspace(1)* %a, i64 1
>    store <8 x float> %call2, <8 x float> addrspace(1)* %arrayidx3, align 32
>    ret void
> @@ -113,17 +113,17 @@ declare <8 x float> @_Z3sinDv8_f(<8 x float>)
>  declare <8 x float> @_Z3cosDv8_f(<8 x float>)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_sincos_v16
> -; GCN-POSTLINK: tail call fast <16 x float> @_Z3sinDv16_f(
> -; GCN-POSTLINK: tail call fast <16 x float> @_Z3cosDv16_f(
> +; GCN-POSTLINK: call fast <16 x float> @_Z3sinDv16_f(
> +; GCN-POSTLINK: call fast <16 x float> @_Z3cosDv16_f(
>  ; GCN-PRELINK: call fast <16 x float> @_Z6sincosDv16_fPS_(
> -; GCN-NATIVE: tail call fast <16 x float> @_Z10native_sinDv16_f(
> -; GCN-NATIVE: tail call fast <16 x float> @_Z10native_cosDv16_f(
> +; GCN-NATIVE: call fast <16 x float> @_Z10native_sinDv16_f(
> +; GCN-NATIVE: call fast <16 x float> @_Z10native_cosDv16_f(
>  define amdgpu_kernel void @test_sincos_v16(<16 x float> addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load <16 x float>, <16 x float> addrspace(1)* %a, align 64
> -  %call = tail call fast <16 x float> @_Z3sinDv16_f(<16 x float> %tmp)
> +  %call = call fast <16 x float> @_Z3sinDv16_f(<16 x float> %tmp)
>    store <16 x float> %call, <16 x float> addrspace(1)* %a, align 64
> -  %call2 = tail call fast <16 x float> @_Z3cosDv16_f(<16 x float> %tmp)
> +  %call2 = call fast <16 x float> @_Z3cosDv16_f(<16 x float> %tmp)
>    %arrayidx3 = getelementptr inbounds <16 x float>, <16 x float>
> addrspace(1)* %a, i64 1
>    store <16 x float> %call2, <16 x float> addrspace(1)* %arrayidx3, align
> 64
>    ret void
> @@ -137,7 +137,7 @@ declare <16 x float> @_Z3cosDv16_f(<16 x float>)
>  ; GCN: store float 0x3FD5555560000000, float addrspace(1)* %a
>  define amdgpu_kernel void @test_native_recip(float addrspace(1)*
> nocapture %a) {
>  entry:
> -  %call = tail call fast float @_Z12native_recipf(float 3.000000e+00)
> +  %call = call fast float @_Z12native_recipf(float 3.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -148,7 +148,7 @@ declare float @_Z12native_recipf(float)
>  ; GCN: store float 0x3FD5555560000000, float addrspace(1)* %a
>  define amdgpu_kernel void @test_half_recip(float addrspace(1)* nocapture
> %a) {
>  entry:
> -  %call = tail call fast float @_Z10half_recipf(float 3.000000e+00)
> +  %call = call fast float @_Z10half_recipf(float 3.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -160,7 +160,7 @@ declare float @_Z10half_recipf(float)
>  define amdgpu_kernel void @test_native_divide(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z13native_divideff(float %tmp, float
> 3.000000e+00)
> +  %call = call fast float @_Z13native_divideff(float %tmp, float
> 3.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -172,7 +172,7 @@ declare float @_Z13native_divideff(float, float)
>  define amdgpu_kernel void @test_half_divide(float addrspace(1)* nocapture
> %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z11half_divideff(float %tmp, float
> 3.000000e+00)
> +  %call = call fast float @_Z11half_divideff(float %tmp, float
> 3.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -184,7 +184,7 @@ declare float @_Z11half_divideff(float, float)
>  define amdgpu_kernel void @test_pow_0f(float addrspace(1)* nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 0.000000e+00)
> +  %call = call fast float @_Z3powff(float %tmp, float 0.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -196,7 +196,7 @@ declare float @_Z3powff(float, float)
>  define amdgpu_kernel void @test_pow_0i(float addrspace(1)* nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 0.000000e+00)
> +  %call = call fast float @_Z3powff(float %tmp, float 0.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -208,7 +208,7 @@ define amdgpu_kernel void @test_pow_1f(float
> addrspace(1)* nocapture %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 1.000000e+00)
> +  %call = call fast float @_Z3powff(float %tmp, float 1.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -220,7 +220,7 @@ define amdgpu_kernel void @test_pow_1i(float
> addrspace(1)* nocapture %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 1.000000e+00)
> +  %call = call fast float @_Z3powff(float %tmp, float 1.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -231,7 +231,7 @@ entry:
>  define amdgpu_kernel void @test_pow_2f(float addrspace(1)* nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 2.000000e+00)
> +  %call = call fast float @_Z3powff(float %tmp, float 2.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -242,7 +242,7 @@ entry:
>  define amdgpu_kernel void @test_pow_2i(float addrspace(1)* nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 2.000000e+00)
> +  %call = call fast float @_Z3powff(float %tmp, float 2.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -254,7 +254,7 @@ define amdgpu_kernel void @test_pow_m1f(float
> addrspace(1)* nocapture %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float -1.000000e+00)
> +  %call = call fast float @_Z3powff(float %tmp, float -1.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -266,31 +266,31 @@ define amdgpu_kernel void @test_pow_m1i(float
> addrspace(1)* nocapture %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float -1.000000e+00)
> +  %call = call fast float @_Z3powff(float %tmp, float -1.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_pow_half
> -; GCN-POSTLINK: tail call fast float @_Z3powff(float %tmp, float
> 5.000000e-01)
> -; GCN-PRELINK: %__pow2sqrt = tail call fast float @_Z4sqrtf(float %tmp)
> +; GCN-POSTLINK: call fast float @_Z3powff(float %tmp, float 5.000000e-01)
> +; GCN-PRELINK: %__pow2sqrt = call fast float @_Z4sqrtf(float %tmp)
>  define amdgpu_kernel void @test_pow_half(float addrspace(1)* nocapture
> %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 5.000000e-01)
> +  %call = call fast float @_Z3powff(float %tmp, float 5.000000e-01)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_pow_mhalf
> -; GCN-POSTLINK: tail call fast float @_Z3powff(float %tmp, float
> -5.000000e-01)
> -; GCN-PRELINK: %__pow2rsqrt = tail call fast float @_Z5rsqrtf(float %tmp)
> +; GCN-POSTLINK: call fast float @_Z3powff(float %tmp, float -5.000000e-01)
> +; GCN-PRELINK: %__pow2rsqrt = call fast float @_Z5rsqrtf(float %tmp)
>  define amdgpu_kernel void @test_pow_mhalf(float addrspace(1)* nocapture
> %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float -5.000000e-01)
> +  %call = call fast float @_Z3powff(float %tmp, float -5.000000e-01)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -305,7 +305,7 @@ define amdgpu_kernel void @test_pow_c(float
> addrspace(1)* nocapture %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 1.100000e+01)
> +  %call = call fast float @_Z3powff(float %tmp, float 1.100000e+01)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -320,7 +320,7 @@ define amdgpu_kernel void @test_powr_c(float
> addrspace(1)* nocapture %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z4powrff(float %tmp, float 1.100000e+01)
> +  %call = call fast float @_Z4powrff(float %tmp, float 1.100000e+01)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -337,7 +337,7 @@ define amdgpu_kernel void @test_pown_c(float
> addrspace(1)* nocapture %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z4pownfi(float %tmp, i32 11)
> +  %call = call fast float @_Z4pownfi(float %tmp, i32 11)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -345,11 +345,11 @@ entry:
>  declare float @_Z4pownfi(float, i32)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_pow
> -; GCN-POSTLINK: tail call fast float @_Z3powff(float %tmp, float
> 1.013000e+03)
> -; GCN-PRELINK: %__fabs = tail call fast float @_Z4fabsf(float %tmp)
> -; GCN-PRELINK: %__log2 = tail call fast float @_Z4log2f(float %__fabs)
> +; GCN-POSTLINK: call fast float @_Z3powff(float %tmp, float 1.013000e+03)
> +; GCN-PRELINK: %__fabs = call fast float @_Z4fabsf(float %tmp)
> +; GCN-PRELINK: %__log2 = call fast float @_Z4log2f(float %__fabs)
>  ; GCN-PRELINK: %__ylogx = fmul fast float %__log2, 1.013000e+03
> -; GCN-PRELINK: %__exp2 = tail call fast float @_Z4exp2f(float %__ylogx)
> +; GCN-PRELINK: %__exp2 = call fast float @_Z4exp2f(float %__ylogx)
>  ; GCN-PRELINK: %[[r0:.*]] = bitcast float %tmp to i32
>  ; GCN-PRELINK: %__pow_sign = and i32 %[[r0]], -2147483648
>  ; GCN-PRELINK: %[[r1:.*]] = bitcast float %__exp2 to i32
> @@ -359,39 +359,39 @@ declare float @_Z4pownfi(float, i32)
>  define amdgpu_kernel void @test_pow(float addrspace(1)* nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3powff(float %tmp, float 1.013000e+03)
> +  %call = call fast float @_Z3powff(float %tmp, float 1.013000e+03)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_powr
> -; GCN-POSTLINK: tail call fast float @_Z4powrff(float %tmp, float %tmp1)
> -; GCN-PRELINK: %__log2 = tail call fast float @_Z4log2f(float %tmp)
> +; GCN-POSTLINK: call fast float @_Z4powrff(float %tmp, float %tmp1)
> +; GCN-PRELINK: %__log2 = call fast float @_Z4log2f(float %tmp)
>  ; GCN-PRELINK: %__ylogx = fmul fast float %__log2, %tmp1
> -; GCN-PRELINK: %__exp2 = tail call fast float @_Z4exp2f(float %__ylogx)
> +; GCN-PRELINK: %__exp2 = call fast float @_Z4exp2f(float %__ylogx)
>  ; GCN-PRELINK: store float %__exp2, float addrspace(1)* %a, align 4
> -; GCN-NATIVE:  %__log2 = tail call fast float @_Z11native_log2f(float
> %tmp)
> +; GCN-NATIVE:  %__log2 = call fast float @_Z11native_log2f(float %tmp)
>  ; GCN-NATIVE:  %__ylogx = fmul fast float %__log2, %tmp1
> -; GCN-NATIVE:  %__exp2 = tail call fast float @_Z11native_exp2f(float
> %__ylogx)
> +; GCN-NATIVE:  %__exp2 = call fast float @_Z11native_exp2f(float %__ylogx)
>  ; GCN-NATIVE:  store float %__exp2, float addrspace(1)* %a, align 4
>  define amdgpu_kernel void @test_powr(float addrspace(1)* nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
>    %arrayidx1 = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp1 = load float, float addrspace(1)* %arrayidx1, align 4
> -  %call = tail call fast float @_Z4powrff(float %tmp, float %tmp1)
> +  %call = call fast float @_Z4powrff(float %tmp, float %tmp1)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_pown
> -; GCN-POSTLINK: tail call fast float @_Z4pownfi(float %tmp, i32 %conv)
> +; GCN-POSTLINK: call fast float @_Z4pownfi(float %tmp, i32 %conv)
>  ; GCN-PRELINK: %conv = fptosi float %tmp1 to i32
> -; GCN-PRELINK: %__fabs = tail call fast float @_Z4fabsf(float %tmp)
> -; GCN-PRELINK: %__log2 = tail call fast float @_Z4log2f(float %__fabs)
> +; GCN-PRELINK: %__fabs = call fast float @_Z4fabsf(float %tmp)
> +; GCN-PRELINK: %__log2 = call fast float @_Z4log2f(float %__fabs)
>  ; GCN-PRELINK: %pownI2F = sitofp i32 %conv to float
>  ; GCN-PRELINK: %__ylogx = fmul fast float %__log2, %pownI2F
> -; GCN-PRELINK: %__exp2 = tail call fast float @_Z4exp2f(float %__ylogx)
> +; GCN-PRELINK: %__exp2 = call fast float @_Z4exp2f(float %__ylogx)
>  ; GCN-PRELINK: %__yeven = shl i32 %conv, 31
>  ; GCN-PRELINK: %[[r0:.*]] = bitcast float %tmp to i32
>  ; GCN-PRELINK: %__pow_sign = and i32 %__yeven, %[[r0]]
> @@ -405,7 +405,7 @@ entry:
>    %arrayidx1 = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp1 = load float, float addrspace(1)* %arrayidx1, align 4
>    %conv = fptosi float %tmp1 to i32
> -  %call = tail call fast float @_Z4pownfi(float %tmp, i32 %conv)
> +  %call = call fast float @_Z4pownfi(float %tmp, i32 %conv)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -417,7 +417,7 @@ define amdgpu_kernel void @test_rootn_1(float
> addrspace(1)* nocapture %a) {
>  entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
> -  %call = tail call fast float @_Z5rootnfi(float %tmp, i32 1)
> +  %call = call fast float @_Z5rootnfi(float %tmp, i32 1)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -425,23 +425,23 @@ entry:
>  declare float @_Z5rootnfi(float, i32)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_rootn_2
> -; GCN-POSTLINK: tail call fast float @_Z5rootnfi(float %tmp, i32 2)
> -; GCN-PRELINK: %__rootn2sqrt = tail call fast float @_Z4sqrtf(float %tmp)
> +; GCN-POSTLINK: call fast float @_Z5rootnfi(float %tmp, i32 2)
> +; GCN-PRELINK: %__rootn2sqrt = call fast float @_Z4sqrtf(float %tmp)
>  define amdgpu_kernel void @test_rootn_2(float addrspace(1)* nocapture %a)
> {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z5rootnfi(float %tmp, i32 2)
> +  %call = call fast float @_Z5rootnfi(float %tmp, i32 2)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_rootn_3
> -; GCN-POSTLINK: tail call fast float @_Z5rootnfi(float %tmp, i32 3)
> -; GCN-PRELINK: %__rootn2cbrt = tail call fast float @_Z4cbrtf(float %tmp)
> +; GCN-POSTLINK: call fast float @_Z5rootnfi(float %tmp, i32 3)
> +; GCN-PRELINK: %__rootn2cbrt = call fast float @_Z4cbrtf(float %tmp)
>  define amdgpu_kernel void @test_rootn_3(float addrspace(1)* nocapture %a)
> {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z5rootnfi(float %tmp, i32 3)
> +  %call = call fast float @_Z5rootnfi(float %tmp, i32 3)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -451,18 +451,18 @@ entry:
>  define amdgpu_kernel void @test_rootn_m1(float addrspace(1)* nocapture
> %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z5rootnfi(float %tmp, i32 -1)
> +  %call = call fast float @_Z5rootnfi(float %tmp, i32 -1)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_rootn_m2
> -; GCN-POSTLINK: tail call fast float @_Z5rootnfi(float %tmp, i32 -2)
> -; GCN-PRELINK: %__rootn2rsqrt = tail call fast float @_Z5rsqrtf(float
> %tmp)
> +; GCN-POSTLINK: call fast float @_Z5rootnfi(float %tmp, i32 -2)
> +; GCN-PRELINK: %__rootn2rsqrt = call fast float @_Z5rsqrtf(float %tmp)
>  define amdgpu_kernel void @test_rootn_m2(float addrspace(1)* nocapture
> %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z5rootnfi(float %tmp, i32 -2)
> +  %call = call fast float @_Z5rootnfi(float %tmp, i32 -2)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -472,7 +472,7 @@ entry:
>  define amdgpu_kernel void @test_fma_0x(float addrspace(1)* nocapture %a,
> float %y) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3fmafff(float 0.000000e+00, float %tmp,
> float %y)
> +  %call = call fast float @_Z3fmafff(float 0.000000e+00, float %tmp,
> float %y)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -484,7 +484,7 @@ declare float @_Z3fmafff(float, float, float)
>  define amdgpu_kernel void @test_fma_x0(float addrspace(1)* nocapture %a,
> float %y) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3fmafff(float %tmp, float 0.000000e+00,
> float %y)
> +  %call = call fast float @_Z3fmafff(float %tmp, float 0.000000e+00,
> float %y)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -494,7 +494,7 @@ entry:
>  define amdgpu_kernel void @test_mad_0x(float addrspace(1)* nocapture %a,
> float %y) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3madfff(float 0.000000e+00, float %tmp,
> float %y)
> +  %call = call fast float @_Z3madfff(float 0.000000e+00, float %tmp,
> float %y)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -506,7 +506,7 @@ declare float @_Z3madfff(float, float, float)
>  define amdgpu_kernel void @test_mad_x0(float addrspace(1)* nocapture %a,
> float %y) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3madfff(float %tmp, float 0.000000e+00,
> float %y)
> +  %call = call fast float @_Z3madfff(float %tmp, float 0.000000e+00,
> float %y)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -516,7 +516,7 @@ entry:
>  define amdgpu_kernel void @test_fma_x1y(float addrspace(1)* nocapture %a,
> float %y) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3fmafff(float %tmp, float 1.000000e+00,
> float %y)
> +  %call = call fast float @_Z3fmafff(float %tmp, float 1.000000e+00,
> float %y)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -526,7 +526,7 @@ entry:
>  define amdgpu_kernel void @test_fma_1xy(float addrspace(1)* nocapture %a,
> float %y) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3fmafff(float 1.000000e+00, float %tmp,
> float %y)
> +  %call = call fast float @_Z3fmafff(float 1.000000e+00, float %tmp,
> float %y)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -538,17 +538,17 @@ entry:
>    %arrayidx = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp = load float, float addrspace(1)* %arrayidx, align 4
>    %tmp1 = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3fmafff(float %tmp, float %tmp1, float
> 0.000000e+00)
> +  %call = call fast float @_Z3fmafff(float %tmp, float %tmp1, float
> 0.000000e+00)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_exp
> -; GCN-NATIVE: tail call fast float @_Z10native_expf(float %tmp)
> +; GCN-NATIVE: call fast float @_Z10native_expf(float %tmp)
>  define amdgpu_kernel void @test_use_native_exp(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3expf(float %tmp)
> +  %call = call fast float @_Z3expf(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -556,11 +556,11 @@ entry:
>  declare float @_Z3expf(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_exp2
> -; GCN-NATIVE: tail call fast float @_Z11native_exp2f(float %tmp)
> +; GCN-NATIVE: call fast float @_Z11native_exp2f(float %tmp)
>  define amdgpu_kernel void @test_use_native_exp2(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z4exp2f(float %tmp)
> +  %call = call fast float @_Z4exp2f(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -568,11 +568,11 @@ entry:
>  declare float @_Z4exp2f(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_exp10
> -; GCN-NATIVE: tail call fast float @_Z12native_exp10f(float %tmp)
> +; GCN-NATIVE: call fast float @_Z12native_exp10f(float %tmp)
>  define amdgpu_kernel void @test_use_native_exp10(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z5exp10f(float %tmp)
> +  %call = call fast float @_Z5exp10f(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -580,11 +580,11 @@ entry:
>  declare float @_Z5exp10f(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_log
> -; GCN-NATIVE: tail call fast float @_Z10native_logf(float %tmp)
> +; GCN-NATIVE: call fast float @_Z10native_logf(float %tmp)
>  define amdgpu_kernel void @test_use_native_log(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3logf(float %tmp)
> +  %call = call fast float @_Z3logf(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -592,11 +592,11 @@ entry:
>  declare float @_Z3logf(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_log2
> -; GCN-NATIVE: tail call fast float @_Z11native_log2f(float %tmp)
> +; GCN-NATIVE: call fast float @_Z11native_log2f(float %tmp)
>  define amdgpu_kernel void @test_use_native_log2(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z4log2f(float %tmp)
> +  %call = call fast float @_Z4log2f(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -604,11 +604,11 @@ entry:
>  declare float @_Z4log2f(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_log10
> -; GCN-NATIVE: tail call fast float @_Z12native_log10f(float %tmp)
> +; GCN-NATIVE: call fast float @_Z12native_log10f(float %tmp)
>  define amdgpu_kernel void @test_use_native_log10(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z5log10f(float %tmp)
> +  %call = call fast float @_Z5log10f(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -617,36 +617,36 @@ declare float @_Z5log10f(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_powr
>  ; GCN-NATIVE: %tmp1 = load float, float addrspace(1)* %arrayidx1, align 4
> -; GCN-NATIVE: %__log2 = tail call fast float @_Z11native_log2f(float %tmp)
> +; GCN-NATIVE: %__log2 = call fast float @_Z11native_log2f(float %tmp)
>  ; GCN-NATIVE: %__ylogx = fmul fast float %__log2, %tmp1
> -; GCN-NATIVE: %__exp2 = tail call fast float @_Z11native_exp2f(float
> %__ylogx)
> +; GCN-NATIVE: %__exp2 = call fast float @_Z11native_exp2f(float %__ylogx)
>  ; GCN-NATIVE: store float %__exp2, float addrspace(1)* %a, align 4
>  define amdgpu_kernel void @test_use_native_powr(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
>    %arrayidx1 = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp1 = load float, float addrspace(1)* %arrayidx1, align 4
> -  %call = tail call fast float @_Z4powrff(float %tmp, float %tmp1)
> +  %call = call fast float @_Z4powrff(float %tmp, float %tmp1)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_sqrt
> -; GCN-NATIVE: tail call fast float @_Z11native_sqrtf(float %tmp)
> +; GCN-NATIVE: call fast float @_Z11native_sqrtf(float %tmp)
>  define amdgpu_kernel void @test_use_native_sqrt(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z4sqrtf(float %tmp)
> +  %call = call fast float @_Z4sqrtf(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void
> @test_dont_use_native_sqrt_fast_f64
> -; GCN: tail call fast double @_Z4sqrtd(double %tmp)
> +; GCN: call fast double @_Z4sqrtd(double %tmp)
>  define amdgpu_kernel void @test_dont_use_native_sqrt_fast_f64(double
> addrspace(1)* nocapture %a) {
>  entry:
>    %tmp = load double, double addrspace(1)* %a, align 8
> -  %call = tail call fast double @_Z4sqrtd(double %tmp)
> +  %call = call fast double @_Z4sqrtd(double %tmp)
>    store double %call, double addrspace(1)* %a, align 8
>    ret void
>  }
> @@ -655,11 +655,11 @@ declare float @_Z4sqrtf(float)
>  declare double @_Z4sqrtd(double)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_rsqrt
> -; GCN-NATIVE: tail call fast float @_Z12native_rsqrtf(float %tmp)
> +; GCN-NATIVE: call fast float @_Z12native_rsqrtf(float %tmp)
>  define amdgpu_kernel void @test_use_native_rsqrt(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z5rsqrtf(float %tmp)
> +  %call = call fast float @_Z5rsqrtf(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -667,11 +667,11 @@ entry:
>  declare float @_Z5rsqrtf(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_tan
> -; GCN-NATIVE: tail call fast float @_Z10native_tanf(float %tmp)
> +; GCN-NATIVE: call fast float @_Z10native_tanf(float %tmp)
>  define amdgpu_kernel void @test_use_native_tan(float addrspace(1)*
> nocapture %a) {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
> -  %call = tail call fast float @_Z3tanf(float %tmp)
> +  %call = call fast float @_Z3tanf(float %tmp)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -679,14 +679,14 @@ entry:
>  declare float @_Z3tanf(float)
>
>  ; GCN-LABEL: {{^}}define amdgpu_kernel void @test_use_native_sincos
> -; GCN-NATIVE: tail call float @_Z10native_sinf(float %tmp)
> -; GCN-NATIVE: tail call float @_Z10native_cosf(float %tmp)
> +; GCN-NATIVE: call float @_Z10native_sinf(float %tmp)
> +; GCN-NATIVE: call float @_Z10native_cosf(float %tmp)
>  define amdgpu_kernel void @test_use_native_sincos(float addrspace(1)* %a)
> {
>  entry:
>    %tmp = load float, float addrspace(1)* %a, align 4
>    %arrayidx1 = getelementptr inbounds float, float addrspace(1)* %a, i64 1
>    %tmp1 = addrspacecast float addrspace(1)* %arrayidx1 to float*
> -  %call = tail call fast float @_Z6sincosfPf(float %tmp, float* %tmp1)
> +  %call = call fast float @_Z6sincosfPf(float %tmp, float* %tmp1)
>    store float %call, float addrspace(1)* %a, align 4
>    ret void
>  }
> @@ -703,10 +703,10 @@ define amdgpu_kernel void
> @test_read_pipe(%opencl.pipe_t addrspace(1)* %p, i32 a
>  entry:
>    %tmp = bitcast i32 addrspace(1)* %ptr to i8 addrspace(1)*
>    %tmp1 = addrspacecast i8 addrspace(1)* %tmp to i8*
> -  %tmp2 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p,
> i8* %tmp1, i32 4, i32 4) #0
> -  %tmp3 = tail call %opencl.reserve_id_t addrspace(5)*
> @__reserve_read_pipe(%opencl.pipe_t addrspace(1)* %p, i32 2, i32 4, i32 4)
> -  %tmp4 = tail call i32 @__read_pipe_4(%opencl.pipe_t addrspace(1)* %p,
> %opencl.reserve_id_t addrspace(5)* %tmp3, i32 2, i8* %tmp1, i32 4, i32 4) #0
> -  tail call void @__commit_read_pipe(%opencl.pipe_t addrspace(1)* %p,
> %opencl.reserve_id_t addrspace(5)* %tmp3, i32 4, i32 4)
> +  %tmp2 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p, i8*
> %tmp1, i32 4, i32 4) #0
> +  %tmp3 = call %opencl.reserve_id_t addrspace(5)*
> @__reserve_read_pipe(%opencl.pipe_t addrspace(1)* %p, i32 2, i32 4, i32 4)
> +  %tmp4 = call i32 @__read_pipe_4(%opencl.pipe_t addrspace(1)* %p,
> %opencl.reserve_id_t addrspace(5)* %tmp3, i32 2, i8* %tmp1, i32 4, i32 4) #0
> +  call void @__commit_read_pipe(%opencl.pipe_t addrspace(1)* %p,
> %opencl.reserve_id_t addrspace(5)* %tmp3, i32 4, i32 4)
>    ret void
>  }
>
> @@ -725,10 +725,10 @@ define amdgpu_kernel void
> @test_write_pipe(%opencl.pipe_t addrspace(1)* %p, i32
>  entry:
>    %tmp = bitcast i32 addrspace(1)* %ptr to i8 addrspace(1)*
>    %tmp1 = addrspacecast i8 addrspace(1)* %tmp to i8*
> -  %tmp2 = tail call i32 @__write_pipe_2(%opencl.pipe_t addrspace(1)* %p,
> i8* %tmp1, i32 4, i32 4) #0
> -  %tmp3 = tail call %opencl.reserve_id_t addrspace(5)*
> @__reserve_write_pipe(%opencl.pipe_t addrspace(1)* %p, i32 2, i32 4, i32 4)
> #0
> -  %tmp4 = tail call i32 @__write_pipe_4(%opencl.pipe_t addrspace(1)* %p,
> %opencl.reserve_id_t addrspace(5)* %tmp3, i32 2, i8* %tmp1, i32 4, i32 4) #0
> -  tail call void @__commit_write_pipe(%opencl.pipe_t addrspace(1)* %p,
> %opencl.reserve_id_t addrspace(5)* %tmp3, i32 4, i32 4) #0
> +  %tmp2 = call i32 @__write_pipe_2(%opencl.pipe_t addrspace(1)* %p, i8*
> %tmp1, i32 4, i32 4) #0
> +  %tmp3 = call %opencl.reserve_id_t addrspace(5)*
> @__reserve_write_pipe(%opencl.pipe_t addrspace(1)* %p, i32 2, i32 4, i32 4)
> #0
> +  %tmp4 = call i32 @__write_pipe_4(%opencl.pipe_t addrspace(1)* %p,
> %opencl.reserve_id_t addrspace(5)* %tmp3, i32 2, i8* %tmp1, i32 4, i32 4) #0
> +  call void @__commit_write_pipe(%opencl.pipe_t addrspace(1)* %p,
> %opencl.reserve_id_t addrspace(5)* %tmp3, i32 4, i32 4) #0
>    ret void
>  }
>
> @@ -755,31 +755,31 @@ declare void @__commit_write_pipe(%opencl.pipe_t
> addrspace(1)*, %opencl.reserve_
>  define amdgpu_kernel void @test_pipe_size(%opencl.pipe_t addrspace(1)*
> %p1, i8 addrspace(1)* %ptr1, %opencl.pipe_t addrspace(1)* %p2, i16
> addrspace(1)* %ptr2, %opencl.pipe_t addrspace(1)* %p4, i32 addrspace(1)*
> %ptr4, %opencl.pipe_t addrspace(1)* %p8, i64 addrspace(1)* %ptr8,
> %opencl.pipe_t addrspace(1)* %p16, <2 x i64> addrspace(1)* %ptr16,
> %opencl.pipe_t addrspace(1)* %p32, <4 x i64> addrspace(1)* %ptr32,
> %opencl.pipe_t addrspace(1)* %p64, <8 x i64> addrspace(1)* %ptr64,
> %opencl.pipe_t addrspace(1)* %p128, <16 x i64> addrspace(1)* %ptr128,
> %opencl.pipe_t addrspace(1)* %pu, %struct.S addrspace(1)* %ptru)
> local_unnamed_addr #0 {
>  entry:
>    %tmp = addrspacecast i8 addrspace(1)* %ptr1 to i8*
> -  %tmp1 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p1,
> i8* %tmp, i32 1, i32 1) #0
> +  %tmp1 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p1, i8*
> %tmp, i32 1, i32 1) #0
>    %tmp2 = bitcast i16 addrspace(1)* %ptr2 to i8 addrspace(1)*
>    %tmp3 = addrspacecast i8 addrspace(1)* %tmp2 to i8*
> -  %tmp4 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p2,
> i8* %tmp3, i32 2, i32 2) #0
> +  %tmp4 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p2, i8*
> %tmp3, i32 2, i32 2) #0
>    %tmp5 = bitcast i32 addrspace(1)* %ptr4 to i8 addrspace(1)*
>    %tmp6 = addrspacecast i8 addrspace(1)* %tmp5 to i8*
> -  %tmp7 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p4,
> i8* %tmp6, i32 4, i32 4) #0
> +  %tmp7 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p4, i8*
> %tmp6, i32 4, i32 4) #0
>    %tmp8 = bitcast i64 addrspace(1)* %ptr8 to i8 addrspace(1)*
>    %tmp9 = addrspacecast i8 addrspace(1)* %tmp8 to i8*
> -  %tmp10 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p8,
> i8* %tmp9, i32 8, i32 8) #0
> +  %tmp10 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p8, i8*
> %tmp9, i32 8, i32 8) #0
>    %tmp11 = bitcast <2 x i64> addrspace(1)* %ptr16 to i8 addrspace(1)*
>    %tmp12 = addrspacecast i8 addrspace(1)* %tmp11 to i8*
> -  %tmp13 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)*
> %p16, i8* %tmp12, i32 16, i32 16) #0
> +  %tmp13 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p16, i8*
> %tmp12, i32 16, i32 16) #0
>    %tmp14 = bitcast <4 x i64> addrspace(1)* %ptr32 to i8 addrspace(1)*
>    %tmp15 = addrspacecast i8 addrspace(1)* %tmp14 to i8*
> -  %tmp16 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)*
> %p32, i8* %tmp15, i32 32, i32 32) #0
> +  %tmp16 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p32, i8*
> %tmp15, i32 32, i32 32) #0
>    %tmp17 = bitcast <8 x i64> addrspace(1)* %ptr64 to i8 addrspace(1)*
>    %tmp18 = addrspacecast i8 addrspace(1)* %tmp17 to i8*
> -  %tmp19 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)*
> %p64, i8* %tmp18, i32 64, i32 64) #0
> +  %tmp19 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p64, i8*
> %tmp18, i32 64, i32 64) #0
>    %tmp20 = bitcast <16 x i64> addrspace(1)* %ptr128 to i8 addrspace(1)*
>    %tmp21 = addrspacecast i8 addrspace(1)* %tmp20 to i8*
> -  %tmp22 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)*
> %p128, i8* %tmp21, i32 128, i32 128) #0
> +  %tmp22 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %p128,
> i8* %tmp21, i32 128, i32 128) #0
>    %tmp23 = bitcast %struct.S addrspace(1)* %ptru to i8 addrspace(1)*
>    %tmp24 = addrspacecast i8 addrspace(1)* %tmp23 to i8*
> -  %tmp25 = tail call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %pu,
> i8* %tmp24, i32 400, i32 4) #0
> +  %tmp25 = call i32 @__read_pipe_2(%opencl.pipe_t addrspace(1)* %pu, i8*
> %tmp24, i32 400, i32 4) #0
>    ret void
>  }
>
>
> diff  --git a/llvm/test/Feature/optnone-opt.ll
> b/llvm/test/Feature/optnone-opt.ll
> index ae0e1a48acc5..f706ade7934f 100644
> --- a/llvm/test/Feature/optnone-opt.ll
> +++ b/llvm/test/Feature/optnone-opt.ll
> @@ -39,16 +39,10 @@ attributes #0 = { optnone noinline }
>  ; IR passes run at -O1 and higher.
>  ; OPT-O1-DAG: Skipping pass 'Aggressive Dead Code Elimination'
>  ; OPT-O1-DAG: Skipping pass 'Combine redundant instructions'
> -; OPT-O1-DAG: Skipping pass 'Dead Store Elimination'
>  ; OPT-O1-DAG: Skipping pass 'Early CSE'
> -; OPT-O1-DAG: Skipping pass 'Jump Threading'
> -; OPT-O1-DAG: Skipping pass 'MemCpy Optimization'
>  ; OPT-O1-DAG: Skipping pass 'Reassociate expressions'
>  ; OPT-O1-DAG: Skipping pass 'Simplify the CFG'
>  ; OPT-O1-DAG: Skipping pass 'Sparse Conditional Constant Propagation'
> -; OPT-O1-DAG: Skipping pass 'SROA'
> -; OPT-O1-DAG: Skipping pass 'Tail Call Elimination'
> -; OPT-O1-DAG: Skipping pass 'Value Propagation'
>
>  ; Additional IR passes run at -O2 and higher.
>  ; OPT-O2O3-DAG: Skipping pass 'Global Value Numbering'
>
> diff  --git a/llvm/test/Other/new-pm-defaults.ll
> b/llvm/test/Other/new-pm-defaults.ll
> index 009f19e544c8..e79a359277f6 100644
> --- a/llvm/test/Other/new-pm-defaults.ll
> +++ b/llvm/test/Other/new-pm-defaults.ll
> @@ -12,66 +12,70 @@
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O1
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='default<O2>' -S  %s 2>&1 \
> -; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2
> +; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2 \
> +; RUN:     --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
> -; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3
> +; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> +; RUN:     --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='default<Os>' -S %s 2>&1 \
> -; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-Os
> +; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-Os \
> +; RUN:     --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='default<Oz>' -S %s 2>&1 \
> -; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-Oz
> +; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-Oz \
> +; RUN:     --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='lto-pre-link<O2>' -S %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2 \
> -; RUN:     --check-prefix=CHECK-O2-LTO
> +; RUN:     --check-prefix=CHECK-O2-LTO --check-prefix=CHECK-O23SZ
>
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-peephole='no-op-function' \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-PEEPHOLE
> +; RUN:     --check-prefix=CHECK-EP-PEEPHOLE --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-late-loop-optimizations='no-op-loop' \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-LOOP-LATE
> +; RUN:     --check-prefix=CHECK-EP-LOOP-LATE --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-loop-optimizer-end='no-op-loop' \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-LOOP-END
> +; RUN:     --check-prefix=CHECK-EP-LOOP-END --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-scalar-optimizer-late='no-op-function' \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-SCALAR-LATE
> +; RUN:     --check-prefix=CHECK-EP-SCALAR-LATE --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-cgscc-optimizer-late='no-op-cgscc' \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-CGSCC-LATE
> +; RUN:     --check-prefix=CHECK-EP-CGSCC-LATE --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-vectorizer-start='no-op-function' \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-VECTORIZER-START
> +; RUN:     --check-prefix=CHECK-EP-VECTORIZER-START
> --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-pipeline-start='no-op-module' \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-PIPELINE-START
> +; RUN:     --check-prefix=CHECK-EP-PIPELINE-START
> --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-pipeline-start='no-op-module' \
>  ; RUN:     -passes='lto-pre-link<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-PIPELINE-START
> +; RUN:     --check-prefix=CHECK-EP-PIPELINE-START
> --check-prefix=CHECK-O23SZ
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes-ep-optimizer-last='no-op-function' \
>  ; RUN:     -passes='default<O3>' -S  %s 2>&1 \
>  ; RUN:     | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \
> -; RUN:     --check-prefix=CHECK-EP-OPTIMIZER-LAST
> +; RUN:     --check-prefix=CHECK-EP-OPTIMIZER-LAST
> --check-prefix=CHECK-O23SZ
>
>  ; CHECK-O: Running analysis: PassInstrumentationAnalysis
>  ; CHECK-O-NEXT: Starting llvm::Module pass manager run.
> @@ -132,10 +136,10 @@
>  ; CHECK-O-NEXT: Running pass: SROA
>  ; CHECK-O-NEXT: Running pass: EarlyCSEPass
>  ; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis
> -; CHECK-O-NEXT: Running pass: SpeculativeExecutionPass
> -; CHECK-O-NEXT: Running pass: JumpThreadingPass
> -; CHECK-O-NEXT: Running analysis: LazyValueAnalysis
> -; CHECK-O-NEXT: Running pass: CorrelatedValuePropagationPass
> +; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass
> +; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
> +; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
> +; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
>  ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
>  ; CHECK-O3-NEXT: AggressiveInstCombinePass
>  ; CHECK-O-NEXT: Running pass: InstCombinePass
> @@ -143,7 +147,7 @@
>  ; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass
>  ; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass
>  ; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass
> -; CHECK-O-NEXT: Running pass: TailCallElimPass
> +; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass
>  ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
>  ; CHECK-O-NEXT: Running pass: ReassociatePass
>  ; CHECK-O-NEXT: Running pass:
> RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
> @@ -180,22 +184,10 @@
>  ; CHECK-EP-LOOP-END-NEXT: Running pass: NoOpLoopPass
>  ; CHECK-O-NEXT: Finished Loop pass manager run.
>  ; CHECK-O-NEXT: Running pass: SROA on foo
> -; CHECK-Os-NEXT: Running pass: MergedLoadStoreMotionPass
> -; CHECK-Os-NEXT: Running pass: GVN
> -; CHECK-Os-NEXT: Running analysis: MemoryDependenceAnalysis
> -; CHECK-Os-NEXT: Running analysis: PhiValuesAnalysis
> -; CHECK-Oz-NEXT: Running pass: MergedLoadStoreMotionPass
> -; CHECK-Oz-NEXT: Running pass: GVN
> -; CHECK-Oz-NEXT: Running analysis: MemoryDependenceAnalysis
> -; CHECK-Oz-NEXT: Running analysis: PhiValuesAnalysis
> -; CHECK-O2-NEXT: Running pass: MergedLoadStoreMotionPass
> -; CHECK-O2-NEXT: Running pass: GVN
> -; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis
> -; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis
> -; CHECK-O3-NEXT: Running pass: MergedLoadStoreMotionPass
> -; CHECK-O3-NEXT: Running pass: GVN
> -; CHECK-O3-NEXT: Running analysis: MemoryDependenceAnalysis
> -; CHECK-O3-NEXT: Running analysis: PhiValuesAnalysis
> +; CHECK-O23SZ-NEXT: Running pass: MergedLoadStoreMotionPass
> +; CHECK-O23SZ-NEXT: Running pass: GVN
> +; CHECK-O23SZ-NEXT: Running analysis: MemoryDependenceAnalysis
> +; CHECK-O23SZ-NEXT: Running analysis: PhiValuesAnalysis
>  ; CHECK-O-NEXT: Running pass: MemCpyOptPass
>  ; CHECK-O1-NEXT: Running analysis: MemoryDependenceAnalysis
>  ; CHECK-O1-NEXT: Running analysis: PhiValuesAnalysis
> @@ -204,14 +196,14 @@
>  ; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis
>  ; CHECK-O-NEXT: Running pass: InstCombinePass
>  ; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass
> -; CHECK-O-NEXT: Running pass: JumpThreadingPass
> -; CHECK-O-NEXT: Running pass: CorrelatedValuePropagationPass
> -; CHECK-O-NEXT: Running pass: DSEPass
> -; CHECK-O-NEXT: Running pass:
> FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}>
> -; CHECK-O-NEXT: Starting llvm::Function pass manager run.
> -; CHECK-O-NEXT: Running pass: LoopSimplifyPass
> -; CHECK-O-NEXT: Running pass: LCSSAPass
> -; CHECK-O-NEXT: Finished llvm::Function pass manager run.
> +; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
> +; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
> +; CHECK-O23SZ-NEXT: Running pass: DSEPass
> +; CHECK-O23SZ-NEXT: Running pass:
> FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}>
> +; CHECK-O23SZ-NEXT: Starting llvm::Function pass manager run.
> +; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
> +; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
> +; CHECK-O23SZ-NEXT: Finished llvm::Function pass manager run.
>  ; CHECK-EP-SCALAR-LATE-NEXT: Running pass: NoOpFunctionPass
>  ; CHECK-O-NEXT: Running pass: ADCEPass
>  ; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis
>
> diff  --git a/llvm/test/Other/new-pm-thinlto-defaults.ll
> b/llvm/test/Other/new-pm-thinlto-defaults.ll
> index a0b4df044450..c93b360009b2 100644
> --- a/llvm/test/Other/new-pm-thinlto-defaults.ll
> +++ b/llvm/test/Other/new-pm-thinlto-defaults.ll
> @@ -13,19 +13,19 @@
>  ; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O1,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-O1
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='thinlto-pre-link<O2>,name-anon-globals' -S  %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O2,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-O2
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-O2
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='thinlto-pre-link<O3>,name-anon-globals' -S
> -passes-ep-pipeline-start='no-op-module' %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O3,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-O3,CHECK-EP-PIPELINE-START
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-O3,CHECK-EP-PIPELINE-START
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='thinlto-pre-link<Os>,name-anon-globals' -S %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-Os,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-Os
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-Os
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='thinlto-pre-link<Oz>,name-anon-globals' -S %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-Oz,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-Oz
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-Oz
>  ; RUN: opt -disable-verify -debug-pass-manager
> -new-pm-debug-info-for-profiling \
>  ; RUN:     -passes='thinlto-pre-link<O2>,name-anon-globals' -S  %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-DIS,CHECK-O,CHECK-O2,CHECK-PRELINK-O,CHECK-PRELINK-O2
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-DIS,CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O2
>  ;
>  ; Postlink pipelines:
>  ; RUN: opt -disable-verify -debug-pass-manager \
> @@ -33,19 +33,19 @@
>  ; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O1,CHECK-POSTLINK-O,CHECK-POSTLINK-O1
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='thinlto<O2>' -S  %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O2,CHECK-POSTLINK-O,CHECK-POSTLINK-O2
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-POSTLINK-O,CHECK-POSTLINK-O2
>  ; RUN: opt -disable-verify -debug-pass-manager
> -passes-ep-pipeline-start='no-op-module' \
>  ; RUN:     -passes='thinlto<O3>' -S  %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O3,CHECK-POSTLINK-O,CHECK-POSTLINK-O3
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-POSTLINK-O,CHECK-POSTLINK-O3
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='thinlto<Os>' -S %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-Os,CHECK-POSTLINK-O,CHECK-POSTLINK-Os
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,CHECK-POSTLINK-O,CHECK-POSTLINK-Os
>  ; RUN: opt -disable-verify -debug-pass-manager \
>  ; RUN:     -passes='thinlto<Oz>' -S %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-Oz,CHECK-POSTLINK-O,CHECK-POSTLINK-Oz
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,CHECK-POSTLINK-O,CHECK-POSTLINK-Oz
>  ; RUN: opt -disable-verify -debug-pass-manager
> -new-pm-debug-info-for-profiling \
>  ; RUN:     -passes='thinlto<O2>' -S  %s 2>&1 \
> -; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O2,CHECK-POSTLINK-O,CHECK-POSTLINK-O2
> +; RUN:     | FileCheck %s
> --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-POSTLINK-O,CHECK-POSTLINK-O2
>  ;
>  ; CHECK-O: Running analysis: PassInstrumentationAnalysis
>  ; CHECK-O-NEXT: Starting llvm::Module pass manager run.
> @@ -112,17 +112,17 @@
>  ; CHECK-O-NEXT: Running pass: SROA
>  ; CHECK-O-NEXT: Running pass: EarlyCSEPass
>  ; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis
> -; CHECK-O-NEXT: Running pass: SpeculativeExecutionPass
> -; CHECK-O-NEXT: Running pass: JumpThreadingPass
> -; CHECK-O-NEXT: Running analysis: LazyValueAnalysis
> -; CHECK-O-NEXT: Running pass: CorrelatedValuePropagationPass
> +; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass
> +; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
> +; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
> +; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
>  ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
>  ; CHECK-O3-NEXT: Running pass: AggressiveInstCombinePass
>  ; CHECK-O-NEXT: Running pass: InstCombinePass
>  ; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass
>  ; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass
>  ; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass
> -; CHECK-O-NEXT: Running pass: TailCallElimPass
> +; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass
>  ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
>  ; CHECK-O-NEXT: Running pass: ReassociatePass
>  ; CHECK-O-NEXT: Running pass:
> RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
> @@ -180,14 +180,14 @@
>  ; CHECK-O-NEXT: Running pass: BDCEPass
>  ; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis
>  ; CHECK-O-NEXT: Running pass: InstCombinePass
> -; CHECK-O-NEXT: Running pass: JumpThreadingPass
> -; CHECK-O-NEXT: Running pass: CorrelatedValuePropagationPass
> -; CHECK-O-NEXT: Running pass: DSEPass
> -; CHECK-O-NEXT: Running pass:
> FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}>
> -; CHECK-O-NEXT: Starting llvm::Function pass manager run
> -; CHECK-O-NEXT: Running pass: LoopSimplifyPass
> -; CHECK-O-NEXT: Running pass: LCSSAPass
> -; CHECK-O-NEXT: Finished llvm::Function pass manager run
> +; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
> +; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
> +; CHECK-O23SZ-NEXT: Running pass: DSEPass
> +; CHECK-O23SZ-NEXT: Running pass:
> FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}>
> +; CHECK-O23SZ-NEXT: Starting llvm::Function pass manager run
> +; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
> +; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
> +; CHECK-O23SZ-NEXT: Finished llvm::Function pass manager run
>  ; CHECK-O-NEXT: Running pass: ADCEPass
>  ; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis
>  ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
>
> diff  --git a/llvm/test/Transforms/MemCpyOpt/lifetime.ll
> b/llvm/test/Transforms/MemCpyOpt/lifetime.ll
> index 9ddf3f4f9c29..ad14bdd6df66 100644
> --- a/llvm/test/Transforms/MemCpyOpt/lifetime.ll
> +++ b/llvm/test/Transforms/MemCpyOpt/lifetime.ll
> @@ -1,4 +1,4 @@
> -; RUN: opt < %s -O1 -S | FileCheck %s
> +; RUN: opt < %s -O2 -S | FileCheck %s
>
>  ; performCallSlotOptzn in MemCpy should not exchange the calls to
>  ; @llvm.lifetime.start and @llvm.memcpy.
>
> diff  --git a/llvm/test/Transforms/PhaseOrdering/simplifycfg-options.ll
> b/llvm/test/Transforms/PhaseOrdering/simplifycfg-options.ll
> index 693462346357..6b3ba66c951e 100644
> --- a/llvm/test/Transforms/PhaseOrdering/simplifycfg-options.ll
> +++ b/llvm/test/Transforms/PhaseOrdering/simplifycfg-options.ll
> @@ -7,7 +7,7 @@
>
>  define i1 @PR33605(i32 %a, i32 %b, i32* %c) {
>  ; ALL-LABEL: @PR33605(
> -; ALL-NEXT:  for.body:
> +; ALL-NEXT:  entry:
>  ; ALL-NEXT:    [[OR:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
>  ; ALL-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32*
> [[C:%.*]], i64 1
>  ; ALL-NEXT:    [[TMP0:%.*]] = load i32, i32* [[ARRAYIDX]], align 4
> @@ -15,16 +15,16 @@ define i1 @PR33605(i32 %a, i32 %b, i32* %c) {
>  ; ALL-NEXT:    br i1 [[CMP]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
>  ; ALL:       if.then:
>  ; ALL-NEXT:    store i32 [[OR]], i32* [[ARRAYIDX]], align 4
> -; ALL-NEXT:    tail call void @foo()
> +; ALL-NEXT:    call void @foo()
>  ; ALL-NEXT:    br label [[IF_END]]
>  ; ALL:       if.end:
> -; ALL-NEXT:    [[CHANGED_1_OFF0:%.*]] = phi i1 [ true, [[IF_THEN]] ], [
> false, [[FOR_BODY:%.*]] ]
> +; ALL-NEXT:    [[CHANGED_1_OFF0:%.*]] = phi i1 [ true, [[IF_THEN]] ], [
> false, [[ENTRY:%.*]] ]
>  ; ALL-NEXT:    [[TMP1:%.*]] = load i32, i32* [[C]], align 4
>  ; ALL-NEXT:    [[CMP_1:%.*]] = icmp eq i32 [[OR]], [[TMP1]]
>  ; ALL-NEXT:    br i1 [[CMP_1]], label [[IF_END_1:%.*]], label
> [[IF_THEN_1:%.*]]
>  ; ALL:       if.then.1:
>  ; ALL-NEXT:    store i32 [[OR]], i32* [[C]], align 4
> -; ALL-NEXT:    tail call void @foo()
> +; ALL-NEXT:    call void @foo()
>  ; ALL-NEXT:    br label [[IF_END_1]]
>  ; ALL:       if.end.1:
>  ; ALL-NEXT:    [[CHANGED_1_OFF0_1:%.*]] = phi i1 [ true, [[IF_THEN_1]] ],
> [ [[CHANGED_1_OFF0]], [[IF_END]] ]
>
> diff  --git a/llvm/test/Transforms/PhaseOrdering/two-shifts-by-sext.ll
> b/llvm/test/Transforms/PhaseOrdering/two-shifts-by-sext.ll
> index 4d4a30e00eaf..82f5cfbc9d51 100644
> --- a/llvm/test/Transforms/PhaseOrdering/two-shifts-by-sext.ll
> +++ b/llvm/test/Transforms/PhaseOrdering/two-shifts-by-sext.ll
> @@ -74,7 +74,7 @@ define i32 @two_shifts_by_same_sext(i32 %val, i8 signext
> %len) {
>  define i32 @two_shifts_by_sext_with_extra_use(i32 %val, i8 signext %len) {
>  ; CHECK-LABEL: @two_shifts_by_sext_with_extra_use(
>  ; CHECK-NEXT:    [[CONV:%.*]] = sext i8 [[LEN:%.*]] to i32
> -; CHECK-NEXT:    tail call void @use_int32(i32 [[CONV]])
> +; CHECK-NEXT:    call void @use_int32(i32 [[CONV]])
>  ; CHECK-NEXT:    [[SHL:%.*]] = shl i32 [[VAL:%.*]], [[CONV]]
>  ; CHECK-NEXT:    [[SHR:%.*]] = ashr i32 [[SHL]], [[CONV]]
>  ; CHECK-NEXT:    ret i32 [[SHR]]
> @@ -101,7 +101,7 @@ declare void @use_int32(i32)
>  define i32 @two_shifts_by_same_sext_with_extra_use(i32 %val, i8 signext
> %len) {
>  ; CHECK-LABEL: @two_shifts_by_same_sext_with_extra_use(
>  ; CHECK-NEXT:    [[CONV:%.*]] = sext i8 [[LEN:%.*]] to i32
> -; CHECK-NEXT:    tail call void @use_int32(i32 [[CONV]])
> +; CHECK-NEXT:    call void @use_int32(i32 [[CONV]])
>  ; CHECK-NEXT:    [[SHL:%.*]] = shl i32 [[VAL:%.*]], [[CONV]]
>  ; CHECK-NEXT:    [[SHR:%.*]] = ashr i32 [[SHL]], [[CONV]]
>  ; CHECK-NEXT:    ret i32 [[SHR]]
>
>
>
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