[llvm] r298312 - InstCombine: Check source value precision when reducing cast intrinsic
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 20 14:59:25 PDT 2017
Author: arsenm
Date: Mon Mar 20 16:59:24 2017
New Revision: 298312
URL: http://llvm.org/viewvc/llvm-project?rev=298312&view=rev
Log:
InstCombine: Check source value precision when reducing cast intrinsic
Missed this check when porting from the libcall version.
Modified:
llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp
llvm/trunk/test/Transforms/InstCombine/double-float-shrink-2.ll
Modified: llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp?rev=298312&r1=298311&r2=298312&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp (original)
+++ llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp Mon Mar 20 16:59:24 2017
@@ -1442,10 +1442,22 @@ Instruction *InstCombiner::visitFPTrunc(
case Intrinsic::round:
case Intrinsic::nearbyint:
case Intrinsic::trunc: {
+ Value *Src = II->getArgOperand(0);
+ if (!Src->hasOneUse())
+ break;
+
+ // Except for fabs, this transformation requires the input of the unary FP
+ // operation to be itself an fpext from the type to which we're
+ // truncating.
+ if (II->getIntrinsicID() != Intrinsic::fabs) {
+ FPExtInst *FPExtSrc = dyn_cast<FPExtInst>(Src);
+ if (!FPExtSrc || FPExtSrc->getOperand(0)->getType() != CI.getType())
+ break;
+ }
+
// Do unary FP operation on smaller type.
// (fptrunc (fabs x)) -> (fabs (fptrunc x))
- Value *InnerTrunc = Builder->CreateFPTrunc(II->getArgOperand(0),
- CI.getType());
+ Value *InnerTrunc = Builder->CreateFPTrunc(Src, CI.getType());
Type *IntrinsicType[] = { CI.getType() };
Function *Overload = Intrinsic::getDeclaration(
CI.getModule(), II->getIntrinsicID(), IntrinsicType);
Modified: llvm/trunk/test/Transforms/InstCombine/double-float-shrink-2.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/double-float-shrink-2.ll?rev=298312&r1=298311&r2=298312&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/double-float-shrink-2.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/double-float-shrink-2.ll Mon Mar 20 16:59:24 2017
@@ -1,32 +1,9 @@
-; RUN: opt < %s -instcombine -S -mtriple "i386-pc-linux" | FileCheck -check-prefix=DO-SIMPLIFY %s
-; RUN: opt < %s -instcombine -S -mtriple "i386-pc-win32" | FileCheck -check-prefix=DONT-SIMPLIFY %s
-; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-win32" | FileCheck -check-prefix=C89-SIMPLIFY %s
-; RUN: opt < %s -instcombine -S -mtriple "i386-pc-mingw32" | FileCheck -check-prefix=DO-SIMPLIFY %s
-; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-mingw32" | FileCheck -check-prefix=DO-SIMPLIFY %s
-; RUN: opt < %s -instcombine -S -mtriple "sparc-sun-solaris" | FileCheck -check-prefix=DO-SIMPLIFY %s
-
-; DO-SIMPLIFY: call float @llvm.floor.f32(
-; DO-SIMPLIFY: call float @llvm.ceil.f32(
-; DO-SIMPLIFY: call float @llvm.round.f32(
-; DO-SIMPLIFY: call float @llvm.nearbyint.f32(
-; DO-SIMPLIFY: call float @llvm.trunc.f32(
-; DO-SIMPLIFY: call float @llvm.fabs.f32(
-; DO-SIMPLIFY: call fast float @llvm.fabs.f32(
-
-; C89-SIMPLIFY: call float @llvm.floor.f32(
-; C89-SIMPLIFY: call float @llvm.ceil.f32(
-; C89-SIMPLIFY: call double @round(
-; C89-SIMPLIFY: call double @nearbyint(
-
-; DONT-SIMPLIFY: call float @llvm.floor.f32(
-; DONT-SIMPLIFY: call float @llvm.ceil.f32(
-; DONT-SIMPLIFY: call double @round(
-; DONT-SIMPLIFY: call double @nearbyint(
-; DONT-SIMPLIFY: call double @trunc(
-
-; This is replaced with the intrinsic, which does the right thing on
-; all platforms.
-; DONT-SIMPLIFY: call float @llvm.fabs.f32(
+; RUN: opt < %s -instcombine -S -mtriple "i386-pc-linux" | FileCheck -check-prefix=DO-SIMPLIFY -check-prefix=ALL %s
+; RUN: opt < %s -instcombine -S -mtriple "i386-pc-win32" | FileCheck -check-prefix=DONT-SIMPLIFY -check-prefix=ALL %s
+; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-win32" | FileCheck -check-prefix=C89-SIMPLIFY -check-prefix=ALL %s
+; RUN: opt < %s -instcombine -S -mtriple "i386-pc-mingw32" | FileCheck -check-prefix=DO-SIMPLIFY -check-prefix=ALL %s
+; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-mingw32" | FileCheck -check-prefix=DO-SIMPLIFY -check-prefix=ALL %s
+; RUN: opt < %s -instcombine -S -mtriple "sparc-sun-solaris" | FileCheck -check-prefix=DO-SIMPLIFY -check-prefix=ALL %s
declare double @floor(double)
declare double @ceil(double)
@@ -34,9 +11,19 @@ declare double @round(double)
declare double @nearbyint(double)
declare double @trunc(double)
declare double @fabs(double)
+
+declare double @llvm.floor.f64(double)
+declare double @llvm.ceil.f64(double)
+declare double @llvm.round.f64(double)
+declare double @llvm.nearbyint.f64(double)
+declare double @llvm.trunc.f64(double)
declare double @llvm.fabs.f64(double)
-define float @test_floor(float %C) {
+; ALL-LABEL: @test_shrink_libcall_floor(
+; DO-SIMPLIFY: call float @llvm.floor.f32(
+; C89-SIMPLIFY: call float @llvm.floor.f32(
+; DONT-SIMPLIFY: call float @llvm.floor.f32(
+define float @test_shrink_libcall_floor(float %C) {
%D = fpext float %C to double
; --> floorf
%E = call double @floor(double %D)
@@ -44,7 +31,11 @@ define float @test_floor(float %C) {
ret float %F
}
-define float @test_ceil(float %C) {
+; ALL-LABEL: @test_shrink_libcall_ceil(
+; DO-SIMPLIFY: call float @llvm.ceil.f32(
+; C89-SIMPLIFY: call float @llvm.ceil.f32(
+; DONT-SIMPLIFY: call float @llvm.ceil.f32(
+define float @test_shrink_libcall_ceil(float %C) {
%D = fpext float %C to double
; --> ceilf
%E = call double @ceil(double %D)
@@ -52,7 +43,11 @@ define float @test_ceil(float %C) {
ret float %F
}
-define float @test_round(float %C) {
+; ALL-LABEL: @test_shrink_libcall_round(
+; DO-SIMPLIFY: call float @llvm.round.f32(
+; C89-SIMPLIFY: call double @round(
+; DONT-SIMPLIFY: call double @round(
+define float @test_shrink_libcall_round(float %C) {
%D = fpext float %C to double
; --> roundf
%E = call double @round(double %D)
@@ -60,7 +55,11 @@ define float @test_round(float %C) {
ret float %F
}
-define float @test_nearbyint(float %C) {
+; ALL-LABEL: @test_shrink_libcall_nearbyint(
+; DO-SIMPLIFY: call float @llvm.nearbyint.f32(
+; C89-SIMPLIFY: call double @nearbyint(
+; DONT-SIMPLIFY: call double @nearbyint(
+define float @test_shrink_libcall_nearbyint(float %C) {
%D = fpext float %C to double
; --> nearbyintf
%E = call double @nearbyint(double %D)
@@ -68,7 +67,10 @@ define float @test_nearbyint(float %C) {
ret float %F
}
-define float @test_trunc(float %C) {
+; ALL-LABEL: @test_shrink_libcall_trunc(
+; DO-SIMPLIFY: call float @llvm.trunc.f32(
+; DONT-SIMPLIFY: call double @trunc(
+define float @test_shrink_libcall_trunc(float %C) {
%D = fpext float %C to double
; --> truncf
%E = call double @trunc(double %D)
@@ -76,7 +78,13 @@ define float @test_trunc(float %C) {
ret float %F
}
-define float @test_fabs(float %C) {
+; ALL-LABEL: @test_shrink_libcall_fabs(
+; DO-SIMPLIFY: call float @llvm.fabs.f32(
+
+; This is replaced with the intrinsic, which does the right thing on
+; all platforms.
+; DONT-SIMPLIFY: call float @llvm.fabs.f32(
+define float @test_shrink_libcall_fabs(float %C) {
%D = fpext float %C to double
; --> fabsf
%E = call double @fabs(double %D)
@@ -85,10 +93,371 @@ define float @test_fabs(float %C) {
}
; Make sure fast math flags are preserved
-define float @test_fabs_fast(float %C) {
+; ALL-LABEL: @test_shrink_libcall_fabs_fast(
+; DO-SIMPLIFY: call fast float @llvm.fabs.f32(
+define float @test_shrink_libcall_fabs_fast(float %C) {
%D = fpext float %C to double
; --> fabsf
%E = call fast double @fabs(double %D)
%F = fptrunc double %E to float
ret float %F
}
+
+; ALL-LABEL: @test_shrink_intrin_floor(
+; ALL: call float @llvm.floor.f32(
+define float @test_shrink_intrin_floor(float %C) {
+ %D = fpext float %C to double
+ ; --> floorf
+ %E = call double @llvm.floor.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_ceil(
+; ALL: call float @llvm.ceil.f32(
+define float @test_shrink_intrin_ceil(float %C) {
+ %D = fpext float %C to double
+ ; --> ceilf
+ %E = call double @llvm.ceil.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_round(
+; ALL: call float @llvm.round.f32(
+define float @test_shrink_intrin_round(float %C) {
+ %D = fpext float %C to double
+ ; --> roundf
+ %E = call double @llvm.round.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_nearbyint(
+; ALL: call float @llvm.nearbyint.f32(
+define float @test_shrink_intrin_nearbyint(float %C) {
+ %D = fpext float %C to double
+ ; --> nearbyintf
+ %E = call double @llvm.nearbyint.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_trunc(
+; ALL-SIMPLIFY: call float @llvm.trunc.f32(
+define float @test_shrink_intrin_trunc(float %C) {
+ %D = fpext float %C to double
+ %E = call double @llvm.trunc.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_fabs(
+; ALL: call float @llvm.fabs.f32(
+define float @test_shrink_intrin_fabs(float %C) {
+ %D = fpext float %C to double
+ %E = call double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; Make sure fast math flags are preserved
+; ALL-LABEL: @test_shrink_intrin_fabs_fast(
+; ALL: call fast float @llvm.fabs.f32(
+define float @test_shrink_intrin_fabs_fast(float %C) {
+ %D = fpext float %C to double
+ %E = call fast double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_no_shrink_intrin_floor(
+; ALL: call double @llvm.floor.f64(
+define float @test_no_shrink_intrin_floor(double %D) {
+ %E = call double @llvm.floor.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_no_shrink_intrin_ceil(
+; ALL: call double @llvm.ceil.f64(
+define float @test_no_shrink_intrin_ceil(double %D) {
+ %E = call double @llvm.ceil.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_no_shrink_intrin_round(
+; ALL: call double @llvm.round.f64(
+define float @test_no_shrink_intrin_round(double %D) {
+ %E = call double @llvm.round.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_no_shrink_intrin_nearbyint(
+; ALL: call double @llvm.nearbyint.f64(
+define float @test_no_shrink_intrin_nearbyint(double %D) {
+ %E = call double @llvm.nearbyint.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_no_shrink_intrin_trunc(
+; ALL-SIMPLIFY: call double @llvm.trunc.f64(
+define float @test_no_shrink_intrin_trunc(double %D) {
+ %E = call double @llvm.trunc.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_fabs_double_src(
+; ALL: call float @llvm.fabs.f32(
+define float @test_shrink_intrin_fabs_double_src(double %D) {
+ %E = call double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; Make sure fast math flags are preserved
+; ALL-LABEL: @test_shrink_intrin_fabs_fast_double_src(
+; ALL: call fast float @llvm.fabs.f32(
+define float @test_shrink_intrin_fabs_fast_double_src(double %D) {
+ %E = call fast double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_float_convertible_constant_intrin_floor(
+; ALL: ret float 2.000000e+00
+define float @test_shrink_float_convertible_constant_intrin_floor() {
+ %E = call double @llvm.floor.f64(double 2.1)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_float_convertible_constant_intrin_ceil(
+; ALL: ret float 3.000000e+00
+define float @test_shrink_float_convertible_constant_intrin_ceil() {
+ %E = call double @llvm.ceil.f64(double 2.1)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_float_convertible_constant_intrin_round(
+; ALL: ret float 2.000000e+00
+define float @test_shrink_float_convertible_constant_intrin_round() {
+ %E = call double @llvm.round.f64(double 2.1)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_float_convertible_constant_intrin_nearbyint(
+; ALL: ret float 2.000000e+00
+define float @test_shrink_float_convertible_constant_intrin_nearbyint() {
+ %E = call double @llvm.nearbyint.f64(double 2.1)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_float_convertible_constant_intrin_trunc(
+; ALL: ret float 2.000000e+00
+define float @test_shrink_float_convertible_constant_intrin_trunc() {
+ %E = call double @llvm.trunc.f64(double 2.1)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_float_convertible_constant_intrin_fabs(
+; ALL: ret float 0x4000CCCCC0000000
+define float @test_shrink_float_convertible_constant_intrin_fabs() {
+ %E = call double @llvm.fabs.f64(double 2.1)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; Make sure fast math flags are preserved
+; ALL-LABEL: @test_shrink_float_convertible_constant_intrin_fabs_fast(
+; ALL: ret float 0x4000CCCCC0000000
+define float @test_shrink_float_convertible_constant_intrin_fabs_fast() {
+ %E = call fast double @llvm.fabs.f64(double 2.1)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_no_shrink_mismatched_type_intrin_floor(
+; ALL-NEXT: %E = call double @llvm.floor.f64(double %D)
+; ALL-NEXT: %F = fptrunc double %E to half
+; ALL-NEXT: ret half %F
+define half @test_no_shrink_mismatched_type_intrin_floor(double %D) {
+ %E = call double @llvm.floor.f64(double %D)
+ %F = fptrunc double %E to half
+ ret half %F
+}
+
+; ALL-LABEL: @test_no_shrink_mismatched_type_intrin_ceil(
+; ALL-NEXT: %E = call double @llvm.ceil.f64(double %D)
+; ALL-NEXT: %F = fptrunc double %E to half
+; ALL-NEXT: ret half %F
+define half @test_no_shrink_mismatched_type_intrin_ceil(double %D) {
+ %E = call double @llvm.ceil.f64(double %D)
+ %F = fptrunc double %E to half
+ ret half %F
+}
+
+; ALL-LABEL: @test_no_shrink_mismatched_type_intrin_round(
+; ALL-NEXT: %E = call double @llvm.round.f64(double %D)
+; ALL-NEXT: %F = fptrunc double %E to half
+; ALL-NEXT: ret half %F
+define half @test_no_shrink_mismatched_type_intrin_round(double %D) {
+ %E = call double @llvm.round.f64(double %D)
+ %F = fptrunc double %E to half
+ ret half %F
+}
+
+; ALL-LABEL: @test_no_shrink_mismatched_type_intrin_nearbyint(
+; ALL-NEXT: %E = call double @llvm.nearbyint.f64(double %D)
+; ALL-NEXT: %F = fptrunc double %E to half
+; ALL-NEXT: ret half %F
+define half @test_no_shrink_mismatched_type_intrin_nearbyint(double %D) {
+ %E = call double @llvm.nearbyint.f64(double %D)
+ %F = fptrunc double %E to half
+ ret half %F
+}
+
+; ALL-LABEL: @test_no_shrink_mismatched_type_intrin_trunc(
+; ALL-NEXT: %E = call double @llvm.trunc.f64(double %D)
+; ALL-NEXT: %F = fptrunc double %E to half
+; ALL-NEXT: ret half %F
+define half @test_no_shrink_mismatched_type_intrin_trunc(double %D) {
+ %E = call double @llvm.trunc.f64(double %D)
+ %F = fptrunc double %E to half
+ ret half %F
+}
+
+; ALL-LABEL: @test_shrink_mismatched_type_intrin_fabs_double_src(
+; ALL-NEXT: %1 = fptrunc double %D to half
+; ALL-NEXT: %F = call half @llvm.fabs.f16(half %1)
+; ALL-NEXT: ret half %F
+define half @test_shrink_mismatched_type_intrin_fabs_double_src(double %D) {
+ %E = call double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to half
+ ret half %F
+}
+
+; Make sure fast math flags are preserved
+; ALL-LABEL: @test_mismatched_type_intrin_fabs_fast_double_src(
+; ALL-NEXT: %1 = fptrunc double %D to half
+; ALL-NEXT: %F = call fast half @llvm.fabs.f16(half %1)
+; ALL-NEXT: ret half %F
+define half @test_mismatched_type_intrin_fabs_fast_double_src(double %D) {
+ %E = call fast double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to half
+ ret half %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_floor_fp16_src(
+; ALL-NEXT: %E = call half @llvm.floor.f16(half %C)
+; ALL-NEXT: %1 = fpext half %E to double
+; ALL-NEXT: %F = fptrunc double %1 to float
+define float @test_shrink_intrin_floor_fp16_src(half %C) {
+ %D = fpext half %C to double
+ %E = call double @llvm.floor.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_ceil_fp16_src(
+; ALL-NEXT: %E = call half @llvm.ceil.f16(half %C)
+; ALL-NEXT: %1 = fpext half %E to double
+; ALL-NEXT: %F = fptrunc double %1 to float
+; ALL-NEXT: ret float %F
+define float @test_shrink_intrin_ceil_fp16_src(half %C) {
+ %D = fpext half %C to double
+ %E = call double @llvm.ceil.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_round_fp16_src(
+; ALL-NEXT: %E = call half @llvm.round.f16(half %C)
+; ALL-NEXT: %1 = fpext half %E to double
+; ALL-NEXT: %F = fptrunc double %1 to float
+; ALL-NEXT: ret float %F
+define float @test_shrink_intrin_round_fp16_src(half %C) {
+ %D = fpext half %C to double
+ %E = call double @llvm.round.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_nearbyint_fp16_src(
+; ALL-NEXT: %E = call half @llvm.nearbyint.f16(half %C)
+; ALL-NEXT: %1 = fpext half %E to double
+; ALL-NEXT: %F = fptrunc double %1 to float
+; ALL-NEXT: ret float %F
+define float @test_shrink_intrin_nearbyint_fp16_src(half %C) {
+ %D = fpext half %C to double
+ %E = call double @llvm.nearbyint.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_trunc_fp16_src(
+; ALL-NEXT: %E = call half @llvm.trunc.f16(half %C)
+; ALL-NEXT: %1 = fpext half %E to double
+; ALL-NEXT: %F = fptrunc double %1 to float
+; ALL-NEXT: ret float %F
+define float @test_shrink_intrin_trunc_fp16_src(half %C) {
+ %D = fpext half %C to double
+ %E = call double @llvm.trunc.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_shrink_intrin_fabs_fp16_src(
+; ALL-NEXT: %E = call half @llvm.fabs.f16(half %C)
+; ALL-NEXT: %1 = fpext half %E to double
+; ALL-NEXT: %F = fptrunc double %1 to float
+; ALL-NEXT: ret float %F
+define float @test_shrink_intrin_fabs_fp16_src(half %C) {
+ %D = fpext half %C to double
+ %E = call double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; Make sure fast math flags are preserved
+; ALL-LABEL: @test_shrink_intrin_fabs_fast_fp16_src(
+; ALL-NEXT: %E = call fast half @llvm.fabs.f16(half %C)
+; ALL-NEXT: %1 = fpext half %E to double
+; ALL-NEXT: %F = fptrunc double %1 to float
+; ALL-NEXT: ret float %F
+define float @test_shrink_intrin_fabs_fast_fp16_src(half %C) {
+ %D = fpext half %C to double
+ %E = call fast double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_no_shrink_intrin_floor_multi_use_fpext(
+; ALL: %D = fpext half %C to double
+; ALL: call double @llvm.floor.f64
+define float @test_no_shrink_intrin_floor_multi_use_fpext(half %C) {
+ %D = fpext half %C to double
+ store volatile double %D, double* undef
+ %E = call double @llvm.floor.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
+
+; ALL-LABEL: @test_no_shrink_intrin_fabs_multi_use_fpext(
+; ALL: %D = fpext half %C to double
+; ALL: call double @llvm.fabs.f64
+define float @test_no_shrink_intrin_fabs_multi_use_fpext(half %C) {
+ %D = fpext half %C to double
+ store volatile double %D, double* undef
+ %E = call double @llvm.fabs.f64(double %D)
+ %F = fptrunc double %E to float
+ ret float %F
+}
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