[llvm] 56e681a - [TargetLibraryInfo] Pick new/delete calls by target
Paul Robinson via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 28 10:10:52 PDT 2021
Author: Paul Robinson
Date: 2021-09-28T10:10:25-07:00
New Revision: 56e681afcce53d2a6eb1df2724c715bd95a43a25
URL: https://github.com/llvm/llvm-project/commit/56e681afcce53d2a6eb1df2724c715bd95a43a25
DIFF: https://github.com/llvm/llvm-project/commit/56e681afcce53d2a6eb1df2724c715bd95a43a25.diff
LOG: [TargetLibraryInfo] Pick new/delete calls by target
There are two sets of new/delete functions, one with Windows/MSVC
mangling and one with Itanium mangling. Mark one set or the other
as unavailable depending on the target.
Split the test malloc-free-delete.ll into three parts: malloc-free.dll
for the C API tests, new-delete-itanium.ll and new-delete-msvc.ll for
the target-specific new/delete tests.
Differential Revision: https://reviews.llvm.org/D110419
Added:
llvm/test/Transforms/InstCombine/malloc-free.ll
llvm/test/Transforms/InstCombine/new-delete-itanium.ll
llvm/test/Transforms/InstCombine/new-delete-msvc.ll
Modified:
llvm/lib/Analysis/TargetLibraryInfo.cpp
Removed:
llvm/test/Transforms/InstCombine/malloc-free-delete.ll
################################################################################
diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp
index a916ba6187fc0..530e039579ef5 100644
--- a/llvm/lib/Analysis/TargetLibraryInfo.cpp
+++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp
@@ -414,6 +414,65 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
TLI.setUnavailable(LibFunc_utimes);
}
+ // Pick just one set of new/delete variants.
+ if (T.isOSMSVCRT()) {
+ // MSVC, doesn't have the Itanium new/delete.
+ TLI.setUnavailable(LibFunc_ZdaPv);
+ TLI.setUnavailable(LibFunc_ZdaPvRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_ZdaPvSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZdaPvSt11align_val_tRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_ZdaPvj);
+ TLI.setUnavailable(LibFunc_ZdaPvjSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZdaPvm);
+ TLI.setUnavailable(LibFunc_ZdaPvmSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZdlPv);
+ TLI.setUnavailable(LibFunc_ZdlPvRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_ZdlPvSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZdlPvSt11align_val_tRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_ZdlPvj);
+ TLI.setUnavailable(LibFunc_ZdlPvjSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZdlPvm);
+ TLI.setUnavailable(LibFunc_ZdlPvmSt11align_val_t);
+ TLI.setUnavailable(LibFunc_Znaj);
+ TLI.setUnavailable(LibFunc_ZnajRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_ZnajSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZnajSt11align_val_tRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_Znam);
+ TLI.setUnavailable(LibFunc_ZnamRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_ZnamSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZnamSt11align_val_tRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_Znwj);
+ TLI.setUnavailable(LibFunc_ZnwjRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_ZnwjSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_Znwm);
+ TLI.setUnavailable(LibFunc_ZnwmRKSt9nothrow_t);
+ TLI.setUnavailable(LibFunc_ZnwmSt11align_val_t);
+ TLI.setUnavailable(LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t);
+ } else {
+ // Not MSVC, assume it's Itanium.
+ TLI.setUnavailable(LibFunc_msvc_new_int);
+ TLI.setUnavailable(LibFunc_msvc_new_int_nothrow);
+ TLI.setUnavailable(LibFunc_msvc_new_longlong);
+ TLI.setUnavailable(LibFunc_msvc_new_longlong_nothrow);
+ TLI.setUnavailable(LibFunc_msvc_delete_ptr32);
+ TLI.setUnavailable(LibFunc_msvc_delete_ptr32_nothrow);
+ TLI.setUnavailable(LibFunc_msvc_delete_ptr32_int);
+ TLI.setUnavailable(LibFunc_msvc_delete_ptr64);
+ TLI.setUnavailable(LibFunc_msvc_delete_ptr64_nothrow);
+ TLI.setUnavailable(LibFunc_msvc_delete_ptr64_longlong);
+ TLI.setUnavailable(LibFunc_msvc_new_array_int);
+ TLI.setUnavailable(LibFunc_msvc_new_array_int_nothrow);
+ TLI.setUnavailable(LibFunc_msvc_new_array_longlong);
+ TLI.setUnavailable(LibFunc_msvc_new_array_longlong_nothrow);
+ TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32);
+ TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32_nothrow);
+ TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32_int);
+ TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64);
+ TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64_nothrow);
+ TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64_longlong);
+ }
+
switch (T.getOS()) {
case Triple::MacOSX:
// exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
diff --git a/llvm/test/Transforms/InstCombine/malloc-free-delete.ll b/llvm/test/Transforms/InstCombine/malloc-free-delete.ll
deleted file mode 100644
index 55337d41d6751..0000000000000
--- a/llvm/test/Transforms/InstCombine/malloc-free-delete.ll
+++ /dev/null
@@ -1,451 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -instcombine -S | FileCheck %s
-; PR1201
-define i32 @main(i32 %argc, i8** %argv) {
-; CHECK-LABEL: @main(
-; CHECK-NEXT: ret i32 0
-;
- %c_19 = alloca i8*
- %malloc_206 = tail call i8* @malloc(i32 mul (i32 ptrtoint (i8* getelementptr (i8, i8* null, i32 1) to i32), i32 10))
- store i8* %malloc_206, i8** %c_19
- %tmp_207 = load i8*, i8** %c_19
- tail call void @free(i8* %tmp_207)
- ret i32 0
-}
-
-define i32 @dead_aligned_alloc(i32 %size, i32 %alignment, i8 %value) {
-; CHECK-LABEL: @dead_aligned_alloc(
-; CHECK-NEXT: ret i32 0
-;
- %aligned_allocation = tail call i8* @aligned_alloc(i32 %alignment, i32 %size)
- store i8 %value, i8* %aligned_allocation
- tail call void @free(i8* %aligned_allocation)
- ret i32 0
-}
-
-declare noalias i8* @calloc(i32, i32) nounwind
-declare noalias i8* @malloc(i32)
-declare noalias i8* @aligned_alloc(i32, i32)
-declare void @free(i8*)
-
-define i1 @foo() {
-; CHECK-LABEL: @foo(
-; CHECK-NEXT: ret i1 false
-;
- %m = call i8* @malloc(i32 1)
- %z = icmp eq i8* %m, null
- call void @free(i8* %m)
- ret i1 %z
-}
-
-declare void @llvm.lifetime.start.p0i8(i64, i8*)
-declare void @llvm.lifetime.end.p0i8(i64, i8*)
-declare i64 @llvm.objectsize.i64(i8*, i1)
-declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind
-declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind
-declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i1) nounwind
-
-define void @test3(i8* %src) {
-; CHECK-LABEL: @test3(
-; CHECK-NEXT: ret void
-;
- %a = call noalias i8* @malloc(i32 10)
- call void @llvm.lifetime.start.p0i8(i64 10, i8* %a)
- call void @llvm.lifetime.end.p0i8(i64 10, i8* %a)
- %size = call i64 @llvm.objectsize.i64(i8* %a, i1 true)
- store i8 42, i8* %a
- call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %src, i32 32, i1 false)
- call void @llvm.memmove.p0i8.p0i8.i32(i8* %a, i8* %src, i32 32, i1 false)
- call void @llvm.memset.p0i8.i32(i8* %a, i8 5, i32 32, i1 false)
- %alloc2 = call noalias i8* @calloc(i32 5, i32 7) nounwind
- %z = icmp ne i8* %alloc2, null
- ret void
-}
-
-;; This used to crash.
-define void @test4() {
-; CHECK-LABEL: @test4(
-; CHECK-NEXT: ret void
-;
- %A = call i8* @malloc(i32 16000)
- %B = bitcast i8* %A to double*
- %C = bitcast double* %B to i8*
- call void @free(i8* %C)
- ret void
-}
-
-define void @test5(i8* %ptr, i8** %esc) {
-; CHECK-LABEL: @test5(
-; CHECK-NEXT: [[A:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
-; CHECK-NEXT: [[B:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
-; CHECK-NEXT: [[C:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
-; CHECK-NEXT: [[D:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
-; CHECK-NEXT: [[E:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
-; CHECK-NEXT: [[F:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
-; CHECK-NEXT: [[G:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
-; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(32) [[PTR:%.*]], i8* noundef nonnull align 1 dereferenceable(32) [[A]], i32 32, i1 false)
-; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(32) [[PTR]], i8* noundef nonnull align 1 dereferenceable(32) [[B]], i32 32, i1 false)
-; CHECK-NEXT: store i8* [[C]], i8** [[ESC:%.*]], align 8
-; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[D]], i8* [[PTR]], i32 32, i1 true)
-; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* [[E]], i8* [[PTR]], i32 32, i1 true)
-; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[F]], i8 5, i32 32, i1 true)
-; CHECK-NEXT: store volatile i8 4, i8* [[G]], align 1
-; CHECK-NEXT: ret void
-;
- %a = call i8* @malloc(i32 700)
- %b = call i8* @malloc(i32 700)
- %c = call i8* @malloc(i32 700)
- %d = call i8* @malloc(i32 700)
- %e = call i8* @malloc(i32 700)
- %f = call i8* @malloc(i32 700)
- %g = call i8* @malloc(i32 700)
- call void @llvm.memcpy.p0i8.p0i8.i32(i8* %ptr, i8* %a, i32 32, i1 false)
- call void @llvm.memmove.p0i8.p0i8.i32(i8* %ptr, i8* %b, i32 32, i1 false)
- store i8* %c, i8** %esc
- call void @llvm.memcpy.p0i8.p0i8.i32(i8* %d, i8* %ptr, i32 32, i1 true)
- call void @llvm.memmove.p0i8.p0i8.i32(i8* %e, i8* %ptr, i32 32, i1 true)
- call void @llvm.memset.p0i8.i32(i8* %f, i8 5, i32 32, i1 true)
- store volatile i8 4, i8* %g
- ret void
-}
-
-;; When a basic block contains only a call to free and this block is accessed
-;; through a test of the argument of free against null, move the call in the
-;; predecessor block.
-;; Using simplifycfg will remove the empty basic block and the branch operation
-;; Then, performing a dead elimination will remove the comparison.
-;; This is what happens with -O1 and upper.
-define void @test6(i8* %foo) minsize {
-; CHECK-LABEL: @test6(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i8* [[FOO:%.*]], null
-; CHECK-NEXT: tail call void @free(i8* [[FOO]])
-; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
-; CHECK: if.then:
-; CHECK-NEXT: br label [[IF_END]]
-; CHECK: if.end:
-; CHECK-NEXT: ret void
-;
-;; Call to free moved
-;; Block is now empty and may be simplified by simplifycfg
-entry:
- %tobool = icmp eq i8* %foo, null
- br i1 %tobool, label %if.end, label %if.then
-
-if.then: ; preds = %entry
- tail call void @free(i8* %foo)
- br label %if.end
-
-if.end: ; preds = %entry, %if.then
- ret void
-}
-
-; Same optimization with even a builtin 'operator delete' would be
-; incorrect in general.
-; 'if (p) delete p;' cannot result in a call to 'operator delete(0)'.
-define void @test6a(i8* %foo) minsize {
-; CHECK-LABEL: @test6a(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i8* [[FOO:%.*]], null
-; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
-; CHECK: if.then:
-; CHECK-NEXT: tail call void @_ZdlPv(i8* [[FOO]]) #[[ATTR10:[0-9]+]]
-; CHECK-NEXT: br label [[IF_END]]
-; CHECK: if.end:
-; CHECK-NEXT: ret void
-;
-entry:
- %tobool = icmp eq i8* %foo, null
- br i1 %tobool, label %if.end, label %if.then
-
-if.then: ; preds = %entry
- tail call void @_ZdlPv(i8* %foo) builtin
- br label %if.end
-
-if.end: ; preds = %entry, %if.then
- ret void
-}
-
-declare i8* @_ZnwmRKSt9nothrow_t(i64, i8*) nobuiltin
-declare void @_ZdlPvRKSt9nothrow_t(i8*, i8*) nobuiltin
-declare i32 @__gxx_personality_v0(...)
-declare void @_ZN1AC2Ev(i8* %this)
-
-define void @test7() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
-; CHECK-LABEL: @test7(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: invoke void @_ZN1AC2Ev(i8* undef)
-; CHECK-NEXT: to label [[DOTNOEXC_I:%.*]] unwind label [[LPAD_I:%.*]]
-; CHECK: .noexc.i:
-; CHECK-NEXT: unreachable
-; CHECK: lpad.i:
-; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 }
-; CHECK-NEXT: cleanup
-; CHECK-NEXT: resume { i8*, i32 } [[TMP0]]
-;
-entry:
- %nt = alloca i8
- %call.i = tail call i8* @_ZnwmRKSt9nothrow_t(i64 1, i8* %nt) builtin nounwind
- invoke void @_ZN1AC2Ev(i8* undef)
- to label %.noexc.i unwind label %lpad.i
-
-.noexc.i: ; preds = %entry
- unreachable
-
-lpad.i: ; preds = %entry
- %0 = landingpad { i8*, i32 } cleanup
- call void @_ZdlPvRKSt9nothrow_t(i8* %call.i, i8* %nt) builtin nounwind
- resume { i8*, i32 } %0
-}
-
-declare i8* @_Znwm(i64) nobuiltin
-define i8* @_Znwj(i32 %n) nobuiltin {
-; CHECK-LABEL: @_Znwj(
-; CHECK-NEXT: [[Z:%.*]] = zext i32 [[N:%.*]] to i64
-; CHECK-NEXT: [[M:%.*]] = call i8* @_Znwm(i64 [[Z]])
-; CHECK-NEXT: ret i8* [[M]]
-;
- %z = zext i32 %n to i64
- %m = call i8* @_Znwm(i64 %z)
- ret i8* %m
-}
-declare i8* @_Znam(i64) nobuiltin
-declare i8* @_Znaj(i32) nobuiltin
-declare void @_ZdlPv(i8*) nobuiltin
-declare void @_ZdaPv(i8*) nobuiltin
-
-define linkonce void @_ZdlPvm(i8* %p, i64) nobuiltin {
-; CHECK-LABEL: @_ZdlPvm(
-; CHECK-NEXT: call void @_ZdlPv(i8* [[P:%.*]])
-; CHECK-NEXT: ret void
-;
- call void @_ZdlPv(i8* %p)
- ret void
-}
-define linkonce void @_ZdlPvj(i8* %p, i32) nobuiltin {
-; CHECK-LABEL: @_ZdlPvj(
-; CHECK-NEXT: call void @_ZdlPv(i8* [[P:%.*]])
-; CHECK-NEXT: ret void
-;
- call void @_ZdlPv(i8* %p)
- ret void
-}
-define linkonce void @_ZdaPvm(i8* %p, i64) nobuiltin {
-; CHECK-LABEL: @_ZdaPvm(
-; CHECK-NEXT: call void @_ZdaPv(i8* [[P:%.*]])
-; CHECK-NEXT: ret void
-;
- call void @_ZdaPv(i8* %p)
- ret void
-}
-define linkonce void @_ZdaPvj(i8* %p, i32) nobuiltin {
-; CHECK-LABEL: @_ZdaPvj(
-; CHECK-NEXT: call void @_ZdaPv(i8* [[P:%.*]])
-; CHECK-NEXT: ret void
-;
- call void @_ZdaPv(i8* %p)
- ret void
-}
-
-
-; new(size_t, align_val_t)
-declare i8* @_ZnwmSt11align_val_t(i64, i64) nobuiltin
-declare i8* @_ZnwjSt11align_val_t(i32, i32) nobuiltin
-; new[](size_t, align_val_t)
-declare i8* @_ZnamSt11align_val_t(i64, i64) nobuiltin
-declare i8* @_ZnajSt11align_val_t(i32, i32) nobuiltin
-; new(size_t, align_val_t, nothrow)
-declare i8* @_ZnwmSt11align_val_tRKSt9nothrow_t(i64, i64, i8*) nobuiltin
-declare i8* @_ZnwjSt11align_val_tRKSt9nothrow_t(i32, i32, i8*) nobuiltin
-; new[](size_t, align_val_t, nothrow)
-declare i8* @_ZnamSt11align_val_tRKSt9nothrow_t(i64, i64, i8*) nobuiltin
-declare i8* @_ZnajSt11align_val_tRKSt9nothrow_t(i32, i32, i8*) nobuiltin
-; delete(void*, align_val_t)
-declare void @_ZdlPvSt11align_val_t(i8*, i64) nobuiltin
-; delete[](void*, align_val_t)
-declare void @_ZdaPvSt11align_val_t(i8*, i64) nobuiltin
-; delete(void*, align_val_t, nothrow)
-declare void @_ZdlPvSt11align_val_tRKSt9nothrow_t(i8*, i64, i8*) nobuiltin
-; delete[](void*, align_val_t, nothrow)
-declare void @_ZdaPvSt11align_val_tRKSt9nothrow_t(i8*, i64, i8*) nobuiltin
-; delete(void*, unsigned int, align_val_t)
-declare void @_ZdlPvjSt11align_val_t(i8*, i32, i32) nobuiltin
-; delete(void*, unsigned long, align_val_t)
-declare void @_ZdlPvmSt11align_val_t(i8*, i64, i64) nobuiltin
-; delete[](void*, unsigned int, align_val_t)
-declare void @_ZdaPvjSt11align_val_t(i8*, i32, i32) nobuiltin
-; delete[](void*, unsigned long, align_val_t)
-declare void @_ZdaPvmSt11align_val_t(i8*, i64, i64) nobuiltin
-
-declare void @llvm.assume(i1)
-
-define void @test8() {
-; CHECK-LABEL: @test8(
-; CHECK-NEXT: ret void
-;
- %nt = alloca i8
- %nw = call i8* @_Znwm(i64 32) builtin
- call void @_ZdlPv(i8* %nw) builtin
- %na = call i8* @_Znam(i64 32) builtin
- call void @_ZdaPv(i8* %na) builtin
- %nwm = call i8* @_Znwm(i64 32) builtin
- call void @_ZdlPvm(i8* %nwm, i64 32) builtin
- %nwj = call i8* @_Znwj(i32 32) builtin
- call void @_ZdlPvj(i8* %nwj, i32 32) builtin
- %nam = call i8* @_Znam(i64 32) builtin
- call void @_ZdaPvm(i8* %nam, i64 32) builtin
- %naj = call i8* @_Znaj(i32 32) builtin
- call void @_ZdaPvj(i8* %naj, i32 32) builtin
- %nwa = call i8* @_ZnwmSt11align_val_t(i64 32, i64 8) builtin
- call void @_ZdlPvSt11align_val_t(i8* %nwa, i64 8) builtin
- %naa = call i8* @_ZnamSt11align_val_t(i64 32, i64 8) builtin
- call void @_ZdaPvSt11align_val_t(i8* %naa, i64 8) builtin
- %nwja = call i8* @_ZnwjSt11align_val_t(i32 32, i32 8) builtin
- call void @_ZdlPvSt11align_val_t(i8* %nwja, i64 8) builtin
- %naja = call i8* @_ZnajSt11align_val_t(i32 32, i32 8) builtin
- call void @_ZdaPvSt11align_val_t(i8* %naja, i64 8) builtin
- %nwat = call i8* @_ZnwmSt11align_val_tRKSt9nothrow_t(i64 32, i64 8, i8* %nt) builtin
- call void @_ZdlPvSt11align_val_tRKSt9nothrow_t(i8* %nwat, i64 8, i8* %nt) builtin
- %naat = call i8* @_ZnamSt11align_val_tRKSt9nothrow_t(i64 32, i64 8, i8* %nt) builtin
- call void @_ZdaPvSt11align_val_tRKSt9nothrow_t(i8* %naat, i64 8, i8* %nt) builtin
- %nwjat = call i8* @_ZnwjSt11align_val_tRKSt9nothrow_t(i32 32, i32 8, i8* %nt) builtin
- call void @_ZdlPvSt11align_val_tRKSt9nothrow_t(i8* %nwjat, i64 8, i8* %nt) builtin
- %najat = call i8* @_ZnajSt11align_val_tRKSt9nothrow_t(i32 32, i32 8, i8* %nt) builtin
- call void @_ZdaPvSt11align_val_tRKSt9nothrow_t(i8* %najat, i64 8, i8* %nt) builtin
- %nwa2 = call i8* @_ZnwmSt11align_val_t(i64 32, i64 8) builtin
- call void @_ZdlPvmSt11align_val_t(i8* %nwa2, i64 32, i64 8) builtin
- %nwja2 = call i8* @_ZnwjSt11align_val_t(i32 32, i32 8) builtin
- call void @_ZdlPvjSt11align_val_t(i8* %nwa2, i32 32, i32 8) builtin
- %naa2 = call i8* @_ZnamSt11align_val_t(i64 32, i64 8) builtin
- call void @_ZdaPvmSt11align_val_t(i8* %naa2, i64 32, i64 8) builtin
- %naja2 = call i8* @_ZnajSt11align_val_t(i32 32, i32 8) builtin
- call void @_ZdaPvjSt11align_val_t(i8* %naja2, i32 32, i32 8) builtin
-
- ; Check that the alignment assume does not prevent the removal.
- %nwa3 = call i8* @_ZnwmSt11align_val_t(i64 32, i64 16) builtin
- call void @llvm.assume(i1 true) [ "align"(i8* %nwa3, i64 16) ]
- call void @_ZdlPvmSt11align_val_t(i8* %nwa3, i64 32, i64 16) builtin
-
- ret void
-}
-
-declare noalias i8* @"\01??2 at YAPEAX_K@Z"(i64) nobuiltin
-declare void @"\01??3 at YAXPEAX@Z"(i8*) nobuiltin
-
-define void @test9() {
-; CHECK-LABEL: @test9(
-; CHECK-NEXT: ret void
-;
- %new_long_long = call noalias i8* @"\01??2 at YAPEAX_K@Z"(i64 32) builtin
- call void @"\01??3 at YAXPEAX@Z"(i8* %new_long_long) builtin
- ret void
-}
-
-define void @test10() {
-; CHECK-LABEL: @test10(
-; CHECK-NEXT: call void @_ZdlPv(i8* null)
-; CHECK-NEXT: ret void
-;
- call void @_ZdlPv(i8* null)
- ret void
-}
-
-define void @test11() {
-; CHECK-LABEL: @test11(
-; CHECK-NEXT: [[CALL:%.*]] = call dereferenceable(8) i8* @_Znwm(i64 8) #[[ATTR10]]
-; CHECK-NEXT: call void @_ZdlPv(i8* nonnull [[CALL]])
-; CHECK-NEXT: ret void
-;
- %call = call i8* @_Znwm(i64 8) builtin
- call void @_ZdlPv(i8* %call)
- ret void
-}
-
-;; Check that the optimization that moves a call to free in its predecessor
-;; block (see test6) also happens when noop casts are involved.
-define void @test12(i32* %foo) minsize {
-; CHECK-LABEL: @test12(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32* [[FOO:%.*]], null
-; CHECK-NEXT: [[BITCAST:%.*]] = bitcast i32* [[FOO]] to i8*
-; CHECK-NEXT: tail call void @free(i8* [[BITCAST]])
-; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
-; CHECK: if.then:
-; CHECK-NEXT: br label [[IF_END]]
-; CHECK: if.end:
-; CHECK-NEXT: ret void
-;
-;; Everything before the call to free should have been moved as well.
-;; Call to free moved
-;; Block is now empty and may be simplified by simplifycfg
-entry:
- %tobool = icmp eq i32* %foo, null
- br i1 %tobool, label %if.end, label %if.then
-
-if.then: ; preds = %entry
- %bitcast = bitcast i32* %foo to i8*
- tail call void @free(i8* %bitcast)
- br label %if.end
-
-if.end: ; preds = %entry, %if.then
- ret void
-}
-
-; The next four tests cover the semantics of the nofree attributes. These
-; are thought to be legal transforms, but an implementation thereof has
-; been reverted once due to
diff icult to isolate fallout.
-
-; TODO: Freeing a no-free pointer -> %foo must be null
-define void @test13(i8* nofree %foo) {
-; CHECK-LABEL: @test13(
-; CHECK-NEXT: call void @free(i8* [[FOO:%.*]])
-; CHECK-NEXT: ret void
-;
- call void @free(i8* %foo)
- ret void
-}
-
-; TODO: Freeing a no-free pointer -> %foo must be null
-define void @test14(i8* %foo) nofree {
-; CHECK-LABEL: @test14(
-; CHECK-NEXT: call void @free(i8* [[FOO:%.*]])
-; CHECK-NEXT: ret void
-;
- call void @free(i8* %foo)
- ret void
-}
-
-; TODO: free call marked no-free -> %foo must be null
-define void @test15(i8* %foo) {
-; CHECK-LABEL: @test15(
-; CHECK-NEXT: call void @free(i8* [[FOO:%.*]]) #[[ATTR7:[0-9]+]]
-; CHECK-NEXT: ret void
-;
- call void @free(i8* %foo) nofree
- ret void
-}
-
-; TODO: freeing a nonnull nofree pointer -> full UB
-define void @test16(i8* nonnull nofree %foo) {
-; CHECK-LABEL: @test16(
-; CHECK-NEXT: call void @free(i8* [[FOO:%.*]])
-; CHECK-NEXT: ret void
-;
- call void @free(i8* %foo)
- ret void
-}
-
-declare i8* @llvm.launder.invariant.group(i8*)
-declare i8* @llvm.strip.invariant.group(i8*)
-
-define void @test17() {
-; CHECK-LABEL: @test17(
-; CHECK-NEXT: ret void
-;
- %nw1 = call i8* @_Znwm(i64 32) builtin
- %nw2 = call i8* @llvm.launder.invariant.group(i8* %nw1)
- %nw3 = call i8* @llvm.strip.invariant.group(i8* %nw2)
- store i8 1, i8* %nw3
- call void @_ZdlPv(i8* %nw2) builtin
- ret void
-}
diff --git a/llvm/test/Transforms/InstCombine/malloc-free.ll b/llvm/test/Transforms/InstCombine/malloc-free.ll
new file mode 100644
index 0000000000000..257ad8208456f
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/malloc-free.ll
@@ -0,0 +1,215 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -instcombine -S | FileCheck %s
+; PR1201
+define i32 @main(i32 %argc, i8** %argv) {
+; CHECK-LABEL: @main(
+; CHECK-NEXT: ret i32 0
+;
+ %c_19 = alloca i8*
+ %malloc_206 = tail call i8* @malloc(i32 mul (i32 ptrtoint (i8* getelementptr (i8, i8* null, i32 1) to i32), i32 10))
+ store i8* %malloc_206, i8** %c_19
+ %tmp_207 = load i8*, i8** %c_19
+ tail call void @free(i8* %tmp_207)
+ ret i32 0
+}
+
+define i32 @dead_aligned_alloc(i32 %size, i32 %alignment, i8 %value) {
+; CHECK-LABEL: @dead_aligned_alloc(
+; CHECK-NEXT: ret i32 0
+;
+ %aligned_allocation = tail call i8* @aligned_alloc(i32 %alignment, i32 %size)
+ store i8 %value, i8* %aligned_allocation
+ tail call void @free(i8* %aligned_allocation)
+ ret i32 0
+}
+
+declare noalias i8* @calloc(i32, i32) nounwind
+declare noalias i8* @malloc(i32)
+declare noalias i8* @aligned_alloc(i32, i32)
+declare void @free(i8*)
+
+define i1 @foo() {
+; CHECK-LABEL: @foo(
+; CHECK-NEXT: ret i1 false
+;
+ %m = call i8* @malloc(i32 1)
+ %z = icmp eq i8* %m, null
+ call void @free(i8* %m)
+ ret i1 %z
+}
+
+declare void @llvm.lifetime.start.p0i8(i64, i8*)
+declare void @llvm.lifetime.end.p0i8(i64, i8*)
+declare i64 @llvm.objectsize.i64(i8*, i1)
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind
+declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind
+declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i1) nounwind
+
+define void @test3(i8* %src) {
+; CHECK-LABEL: @test3(
+; CHECK-NEXT: ret void
+;
+ %a = call noalias i8* @malloc(i32 10)
+ call void @llvm.lifetime.start.p0i8(i64 10, i8* %a)
+ call void @llvm.lifetime.end.p0i8(i64 10, i8* %a)
+ %size = call i64 @llvm.objectsize.i64(i8* %a, i1 true)
+ store i8 42, i8* %a
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %src, i32 32, i1 false)
+ call void @llvm.memmove.p0i8.p0i8.i32(i8* %a, i8* %src, i32 32, i1 false)
+ call void @llvm.memset.p0i8.i32(i8* %a, i8 5, i32 32, i1 false)
+ %alloc2 = call noalias i8* @calloc(i32 5, i32 7) nounwind
+ %z = icmp ne i8* %alloc2, null
+ ret void
+}
+
+;; This used to crash.
+define void @test4() {
+; CHECK-LABEL: @test4(
+; CHECK-NEXT: ret void
+;
+ %A = call i8* @malloc(i32 16000)
+ %B = bitcast i8* %A to double*
+ %C = bitcast double* %B to i8*
+ call void @free(i8* %C)
+ ret void
+}
+
+define void @test5(i8* %ptr, i8** %esc) {
+; CHECK-LABEL: @test5(
+; CHECK-NEXT: [[A:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
+; CHECK-NEXT: [[B:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
+; CHECK-NEXT: [[C:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
+; CHECK-NEXT: [[D:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
+; CHECK-NEXT: [[E:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
+; CHECK-NEXT: [[F:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
+; CHECK-NEXT: [[G:%.*]] = call dereferenceable_or_null(700) i8* @malloc(i32 700)
+; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(32) [[PTR:%.*]], i8* noundef nonnull align 1 dereferenceable(32) [[A]], i32 32, i1 false)
+; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(32) [[PTR]], i8* noundef nonnull align 1 dereferenceable(32) [[B]], i32 32, i1 false)
+; CHECK-NEXT: store i8* [[C]], i8** [[ESC:%.*]], align 8
+; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[D]], i8* [[PTR]], i32 32, i1 true)
+; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* [[E]], i8* [[PTR]], i32 32, i1 true)
+; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[F]], i8 5, i32 32, i1 true)
+; CHECK-NEXT: store volatile i8 4, i8* [[G]], align 1
+; CHECK-NEXT: ret void
+;
+ %a = call i8* @malloc(i32 700)
+ %b = call i8* @malloc(i32 700)
+ %c = call i8* @malloc(i32 700)
+ %d = call i8* @malloc(i32 700)
+ %e = call i8* @malloc(i32 700)
+ %f = call i8* @malloc(i32 700)
+ %g = call i8* @malloc(i32 700)
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %ptr, i8* %a, i32 32, i1 false)
+ call void @llvm.memmove.p0i8.p0i8.i32(i8* %ptr, i8* %b, i32 32, i1 false)
+ store i8* %c, i8** %esc
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %d, i8* %ptr, i32 32, i1 true)
+ call void @llvm.memmove.p0i8.p0i8.i32(i8* %e, i8* %ptr, i32 32, i1 true)
+ call void @llvm.memset.p0i8.i32(i8* %f, i8 5, i32 32, i1 true)
+ store volatile i8 4, i8* %g
+ ret void
+}
+
+;; When a basic block contains only a call to free and this block is accessed
+;; through a test of the argument of free against null, move the call in the
+;; predecessor block.
+;; Using simplifycfg will remove the empty basic block and the branch operation
+;; Then, performing a dead elimination will remove the comparison.
+;; This is what happens with -O1 and upper.
+define void @test6(i8* %foo) minsize {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i8* [[FOO:%.*]], null
+; CHECK-NEXT: tail call void @free(i8* [[FOO]])
+; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: br label [[IF_END]]
+; CHECK: if.end:
+; CHECK-NEXT: ret void
+;
+;; Call to free moved
+;; Block is now empty and may be simplified by simplifycfg
+entry:
+ %tobool = icmp eq i8* %foo, null
+ br i1 %tobool, label %if.end, label %if.then
+
+if.then: ; preds = %entry
+ tail call void @free(i8* %foo)
+ br label %if.end
+
+if.end: ; preds = %entry, %if.then
+ ret void
+}
+
+;; Check that the optimization that moves a call to free in its predecessor
+;; block (see test6) also happens when noop casts are involved.
+define void @test12(i32* %foo) minsize {
+; CHECK-LABEL: @test12(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32* [[FOO:%.*]], null
+; CHECK-NEXT: [[BITCAST:%.*]] = bitcast i32* [[FOO]] to i8*
+; CHECK-NEXT: tail call void @free(i8* [[BITCAST]])
+; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: br label [[IF_END]]
+; CHECK: if.end:
+; CHECK-NEXT: ret void
+;
+;; Everything before the call to free should have been moved as well.
+;; Call to free moved
+;; Block is now empty and may be simplified by simplifycfg
+entry:
+ %tobool = icmp eq i32* %foo, null
+ br i1 %tobool, label %if.end, label %if.then
+
+if.then: ; preds = %entry
+ %bitcast = bitcast i32* %foo to i8*
+ tail call void @free(i8* %bitcast)
+ br label %if.end
+
+if.end: ; preds = %entry, %if.then
+ ret void
+}
+
+; The next four tests cover the semantics of the nofree attributes. These
+; are thought to be legal transforms, but an implementation thereof has
+; been reverted once due to
diff icult to isolate fallout.
+
+; TODO: Freeing a no-free pointer -> %foo must be null
+define void @test13(i8* nofree %foo) {
+; CHECK-LABEL: @test13(
+; CHECK-NEXT: call void @free(i8* [[FOO:%.*]])
+; CHECK-NEXT: ret void
+;
+ call void @free(i8* %foo)
+ ret void
+}
+
+; TODO: Freeing a no-free pointer -> %foo must be null
+define void @test14(i8* %foo) nofree {
+; CHECK-LABEL: @test14(
+; CHECK-NEXT: call void @free(i8* [[FOO:%.*]])
+; CHECK-NEXT: ret void
+;
+ call void @free(i8* %foo)
+ ret void
+}
+
+; TODO: free call marked no-free -> %foo must be null
+define void @test15(i8* %foo) {
+; CHECK-LABEL: @test15(
+; CHECK-NEXT: call void @free(i8* [[FOO:%.*]]) #[[ATTR5:[0-9]+]]
+; CHECK-NEXT: ret void
+;
+ call void @free(i8* %foo) nofree
+ ret void
+}
+
+; TODO: freeing a nonnull nofree pointer -> full UB
+define void @test16(i8* nonnull nofree %foo) {
+; CHECK-LABEL: @test16(
+; CHECK-NEXT: call void @free(i8* [[FOO:%.*]])
+; CHECK-NEXT: ret void
+;
+ call void @free(i8* %foo)
+ ret void
+}
diff --git a/llvm/test/Transforms/InstCombine/new-delete-itanium.ll b/llvm/test/Transforms/InstCombine/new-delete-itanium.ll
new file mode 100644
index 0000000000000..d2044fa05c020
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/new-delete-itanium.ll
@@ -0,0 +1,226 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -mtriple x86_64--linux -instcombine -S | FileCheck %s
+; REQUIRES: x86-registered-target
+; PR1201
+
+; 'if (p) delete p;' cannot result in a call to 'operator delete(0)'.
+define void @test6a(i8* %foo) minsize {
+; CHECK-LABEL: @test6a(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i8* [[FOO:%.*]], null
+; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: tail call void @_ZdlPv(i8* [[FOO]]) #[[ATTR5:[0-9]+]]
+; CHECK-NEXT: br label [[IF_END]]
+; CHECK: if.end:
+; CHECK-NEXT: ret void
+;
+entry:
+ %tobool = icmp eq i8* %foo, null
+ br i1 %tobool, label %if.end, label %if.then
+
+if.then: ; preds = %entry
+ tail call void @_ZdlPv(i8* %foo) builtin
+ br label %if.end
+
+if.end: ; preds = %entry, %if.then
+ ret void
+}
+
+declare i8* @_ZnwmRKSt9nothrow_t(i64, i8*) nobuiltin
+declare void @_ZdlPvRKSt9nothrow_t(i8*, i8*) nobuiltin
+declare i32 @__gxx_personality_v0(...)
+declare void @_ZN1AC2Ev(i8* %this)
+
+define void @test7() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
+; CHECK-LABEL: @test7(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: invoke void @_ZN1AC2Ev(i8* undef)
+; CHECK-NEXT: to label [[DOTNOEXC_I:%.*]] unwind label [[LPAD_I:%.*]]
+; CHECK: .noexc.i:
+; CHECK-NEXT: unreachable
+; CHECK: lpad.i:
+; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 }
+; CHECK-NEXT: cleanup
+; CHECK-NEXT: resume { i8*, i32 } [[TMP0]]
+;
+entry:
+ %nt = alloca i8
+ %call.i = tail call i8* @_ZnwmRKSt9nothrow_t(i64 1, i8* %nt) builtin nounwind
+ invoke void @_ZN1AC2Ev(i8* undef)
+ to label %.noexc.i unwind label %lpad.i
+
+.noexc.i: ; preds = %entry
+ unreachable
+
+lpad.i: ; preds = %entry
+ %0 = landingpad { i8*, i32 } cleanup
+ call void @_ZdlPvRKSt9nothrow_t(i8* %call.i, i8* %nt) builtin nounwind
+ resume { i8*, i32 } %0
+}
+
+declare i8* @_Znwm(i64) nobuiltin
+define i8* @_Znwj(i32 %n) nobuiltin {
+; CHECK-LABEL: @_Znwj(
+; CHECK-NEXT: [[Z:%.*]] = zext i32 [[N:%.*]] to i64
+; CHECK-NEXT: [[M:%.*]] = call i8* @_Znwm(i64 [[Z]])
+; CHECK-NEXT: ret i8* [[M]]
+;
+ %z = zext i32 %n to i64
+ %m = call i8* @_Znwm(i64 %z)
+ ret i8* %m
+}
+declare i8* @_Znam(i64) nobuiltin
+declare i8* @_Znaj(i32) nobuiltin
+declare void @_ZdlPv(i8*) nobuiltin
+declare void @_ZdaPv(i8*) nobuiltin
+
+define linkonce void @_ZdlPvm(i8* %p, i64) nobuiltin {
+; CHECK-LABEL: @_ZdlPvm(
+; CHECK-NEXT: call void @_ZdlPv(i8* [[P:%.*]])
+; CHECK-NEXT: ret void
+;
+ call void @_ZdlPv(i8* %p)
+ ret void
+}
+define linkonce void @_ZdlPvj(i8* %p, i32) nobuiltin {
+; CHECK-LABEL: @_ZdlPvj(
+; CHECK-NEXT: call void @_ZdlPv(i8* [[P:%.*]])
+; CHECK-NEXT: ret void
+;
+ call void @_ZdlPv(i8* %p)
+ ret void
+}
+define linkonce void @_ZdaPvm(i8* %p, i64) nobuiltin {
+; CHECK-LABEL: @_ZdaPvm(
+; CHECK-NEXT: call void @_ZdaPv(i8* [[P:%.*]])
+; CHECK-NEXT: ret void
+;
+ call void @_ZdaPv(i8* %p)
+ ret void
+}
+define linkonce void @_ZdaPvj(i8* %p, i32) nobuiltin {
+; CHECK-LABEL: @_ZdaPvj(
+; CHECK-NEXT: call void @_ZdaPv(i8* [[P:%.*]])
+; CHECK-NEXT: ret void
+;
+ call void @_ZdaPv(i8* %p)
+ ret void
+}
+
+
+; new(size_t, align_val_t)
+declare i8* @_ZnwmSt11align_val_t(i64, i64) nobuiltin
+declare i8* @_ZnwjSt11align_val_t(i32, i32) nobuiltin
+; new[](size_t, align_val_t)
+declare i8* @_ZnamSt11align_val_t(i64, i64) nobuiltin
+declare i8* @_ZnajSt11align_val_t(i32, i32) nobuiltin
+; new(size_t, align_val_t, nothrow)
+declare i8* @_ZnwmSt11align_val_tRKSt9nothrow_t(i64, i64, i8*) nobuiltin
+declare i8* @_ZnwjSt11align_val_tRKSt9nothrow_t(i32, i32, i8*) nobuiltin
+; new[](size_t, align_val_t, nothrow)
+declare i8* @_ZnamSt11align_val_tRKSt9nothrow_t(i64, i64, i8*) nobuiltin
+declare i8* @_ZnajSt11align_val_tRKSt9nothrow_t(i32, i32, i8*) nobuiltin
+; delete(void*, align_val_t)
+declare void @_ZdlPvSt11align_val_t(i8*, i64) nobuiltin
+; delete[](void*, align_val_t)
+declare void @_ZdaPvSt11align_val_t(i8*, i64) nobuiltin
+; delete(void*, align_val_t, nothrow)
+declare void @_ZdlPvSt11align_val_tRKSt9nothrow_t(i8*, i64, i8*) nobuiltin
+; delete[](void*, align_val_t, nothrow)
+declare void @_ZdaPvSt11align_val_tRKSt9nothrow_t(i8*, i64, i8*) nobuiltin
+; delete(void*, unsigned int, align_val_t)
+declare void @_ZdlPvjSt11align_val_t(i8*, i32, i32) nobuiltin
+; delete(void*, unsigned long, align_val_t)
+declare void @_ZdlPvmSt11align_val_t(i8*, i64, i64) nobuiltin
+; delete[](void*, unsigned int, align_val_t)
+declare void @_ZdaPvjSt11align_val_t(i8*, i32, i32) nobuiltin
+; delete[](void*, unsigned long, align_val_t)
+declare void @_ZdaPvmSt11align_val_t(i8*, i64, i64) nobuiltin
+
+declare void @llvm.assume(i1)
+
+define void @test8() {
+; CHECK-LABEL: @test8(
+; CHECK-NEXT: ret void
+;
+ %nt = alloca i8
+ %nw = call i8* @_Znwm(i64 32) builtin
+ call void @_ZdlPv(i8* %nw) builtin
+ %na = call i8* @_Znam(i64 32) builtin
+ call void @_ZdaPv(i8* %na) builtin
+ %nwm = call i8* @_Znwm(i64 32) builtin
+ call void @_ZdlPvm(i8* %nwm, i64 32) builtin
+ %nwj = call i8* @_Znwj(i32 32) builtin
+ call void @_ZdlPvj(i8* %nwj, i32 32) builtin
+ %nam = call i8* @_Znam(i64 32) builtin
+ call void @_ZdaPvm(i8* %nam, i64 32) builtin
+ %naj = call i8* @_Znaj(i32 32) builtin
+ call void @_ZdaPvj(i8* %naj, i32 32) builtin
+ %nwa = call i8* @_ZnwmSt11align_val_t(i64 32, i64 8) builtin
+ call void @_ZdlPvSt11align_val_t(i8* %nwa, i64 8) builtin
+ %naa = call i8* @_ZnamSt11align_val_t(i64 32, i64 8) builtin
+ call void @_ZdaPvSt11align_val_t(i8* %naa, i64 8) builtin
+ %nwja = call i8* @_ZnwjSt11align_val_t(i32 32, i32 8) builtin
+ call void @_ZdlPvSt11align_val_t(i8* %nwja, i64 8) builtin
+ %naja = call i8* @_ZnajSt11align_val_t(i32 32, i32 8) builtin
+ call void @_ZdaPvSt11align_val_t(i8* %naja, i64 8) builtin
+ %nwat = call i8* @_ZnwmSt11align_val_tRKSt9nothrow_t(i64 32, i64 8, i8* %nt) builtin
+ call void @_ZdlPvSt11align_val_tRKSt9nothrow_t(i8* %nwat, i64 8, i8* %nt) builtin
+ %naat = call i8* @_ZnamSt11align_val_tRKSt9nothrow_t(i64 32, i64 8, i8* %nt) builtin
+ call void @_ZdaPvSt11align_val_tRKSt9nothrow_t(i8* %naat, i64 8, i8* %nt) builtin
+ %nwjat = call i8* @_ZnwjSt11align_val_tRKSt9nothrow_t(i32 32, i32 8, i8* %nt) builtin
+ call void @_ZdlPvSt11align_val_tRKSt9nothrow_t(i8* %nwjat, i64 8, i8* %nt) builtin
+ %najat = call i8* @_ZnajSt11align_val_tRKSt9nothrow_t(i32 32, i32 8, i8* %nt) builtin
+ call void @_ZdaPvSt11align_val_tRKSt9nothrow_t(i8* %najat, i64 8, i8* %nt) builtin
+ %nwa2 = call i8* @_ZnwmSt11align_val_t(i64 32, i64 8) builtin
+ call void @_ZdlPvmSt11align_val_t(i8* %nwa2, i64 32, i64 8) builtin
+ %nwja2 = call i8* @_ZnwjSt11align_val_t(i32 32, i32 8) builtin
+ call void @_ZdlPvjSt11align_val_t(i8* %nwa2, i32 32, i32 8) builtin
+ %naa2 = call i8* @_ZnamSt11align_val_t(i64 32, i64 8) builtin
+ call void @_ZdaPvmSt11align_val_t(i8* %naa2, i64 32, i64 8) builtin
+ %naja2 = call i8* @_ZnajSt11align_val_t(i32 32, i32 8) builtin
+ call void @_ZdaPvjSt11align_val_t(i8* %naja2, i32 32, i32 8) builtin
+
+ ; Check that the alignment assume does not prevent the removal.
+ %nwa3 = call i8* @_ZnwmSt11align_val_t(i64 32, i64 16) builtin
+ call void @llvm.assume(i1 true) [ "align"(i8* %nwa3, i64 16) ]
+ call void @_ZdlPvmSt11align_val_t(i8* %nwa3, i64 32, i64 16) builtin
+
+ ret void
+}
+
+define void @test10() {
+; CHECK-LABEL: @test10(
+; CHECK-NEXT: call void @_ZdlPv(i8* null)
+; CHECK-NEXT: ret void
+;
+ call void @_ZdlPv(i8* null)
+ ret void
+}
+
+define void @test11() {
+; CHECK-LABEL: @test11(
+; CHECK-NEXT: [[CALL:%.*]] = call dereferenceable(8) i8* @_Znwm(i64 8) #[[ATTR5]]
+; CHECK-NEXT: call void @_ZdlPv(i8* nonnull [[CALL]])
+; CHECK-NEXT: ret void
+;
+ %call = call i8* @_Znwm(i64 8) builtin
+ call void @_ZdlPv(i8* %call)
+ ret void
+}
+
+declare i8* @llvm.launder.invariant.group(i8*)
+declare i8* @llvm.strip.invariant.group(i8*)
+
+define void @test17() {
+; CHECK-LABEL: @test17(
+; CHECK-NEXT: ret void
+;
+ %nw1 = call i8* @_Znwm(i64 32) builtin
+ %nw2 = call i8* @llvm.launder.invariant.group(i8* %nw1)
+ %nw3 = call i8* @llvm.strip.invariant.group(i8* %nw2)
+ store i8 1, i8* %nw3
+ call void @_ZdlPv(i8* %nw2) builtin
+ ret void
+}
diff --git a/llvm/test/Transforms/InstCombine/new-delete-msvc.ll b/llvm/test/Transforms/InstCombine/new-delete-msvc.ll
new file mode 100644
index 0000000000000..74b79357076c5
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/new-delete-msvc.ll
@@ -0,0 +1,17 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -mtriple x86_64--windows -instcombine -S | FileCheck %s
+; REQUIRES: x86-registered-target
+; PR1201
+
+declare noalias i8* @"\01??2 at YAPEAX_K@Z"(i64) nobuiltin
+declare void @"\01??3 at YAXPEAX@Z"(i8*) nobuiltin
+
+define void @test9() {
+; CHECK-LABEL: @test9(
+; CHECK-NEXT: ret void
+;
+ %new_long_long = call noalias i8* @"\01??2 at YAPEAX_K@Z"(i64 32) builtin
+ call void @"\01??3 at YAXPEAX@Z"(i8* %new_long_long) builtin
+ ret void
+}
+
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