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-rw-r--r--llvm/test/Transforms/InstCombine/double-float-shrink-2.ll57
1 files changed, 45 insertions, 12 deletions
diff --git a/llvm/test/Transforms/InstCombine/double-float-shrink-2.ll b/llvm/test/Transforms/InstCombine/double-float-shrink-2.ll
index 76e497bd68f..d5099531af9 100644
--- a/llvm/test/Transforms/InstCombine/double-float-shrink-2.ll
+++ b/llvm/test/Transforms/InstCombine/double-float-shrink-2.ll
@@ -1,10 +1,10 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -instcombine -S -mtriple "i386-pc-linux" | FileCheck %s
-; RUN: opt < %s -instcombine -S -mtriple "i386-pc-win32" | FileCheck %s
-; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-win32" | FileCheck %s
-; RUN: opt < %s -instcombine -S -mtriple "i386-pc-mingw32" | FileCheck %s
-; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-mingw32" | FileCheck %s
-; RUN: opt < %s -instcombine -S -mtriple "sparc-sun-solaris" | FileCheck %s
+; RUN: opt < %s -instcombine -S -mtriple "i386-pc-linux" | FileCheck --check-prefixes=CHECK,DO-SIMPLIFY %s
+; RUN: opt < %s -instcombine -S -mtriple "i386-pc-win32" | FileCheck --check-prefixes=CHECK,DONT-SIMPLIFY %s
+; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-win32" | FileCheck --check-prefixes=CHECK,C89-SIMPLIFY %s
+; RUN: opt < %s -instcombine -S -mtriple "i386-pc-mingw32" | FileCheck --check-prefixes=CHECK,DO-SIMPLIFY %s
+; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-mingw32" | FileCheck --check-prefixes=CHECK,DO-SIMPLIFY %s
+; RUN: opt < %s -instcombine -S -mtriple "sparc-sun-solaris" | FileCheck --check-prefixes=CHECK,DO-SIMPLIFY %s
; RUN: opt < %s -instcombine -S -mtriple "x86_64-pc-win32" -enable-debugify 2>&1 | FileCheck --check-prefix=DBG-VALID %s
declare double @floor(double)
@@ -61,8 +61,19 @@ define float @test_shrink_libcall_ceil(float %C) {
define float @test_shrink_libcall_round(float %C) {
; CHECK-LABEL: @test_shrink_libcall_round(
-; CHECK-NEXT: [[F:%.*]] = call float @llvm.round.f32(float [[C:%.*]])
-; CHECK-NEXT: ret float [[F]]
+
+; DO-SIMPLIFY-NEXT: [[F:%.*]] = call float @llvm.round.f32(float [[C:%.*]])
+; DO-SIMPLIFY-NEXT: ret float [[F]]
+;
+; DONT-SIMPLIFY-NEXT: [[D:%.*]] = fpext float [[C:%.*]] to double
+; DONT-SIMPLIFY-NEXT: [[E:%.*]] = call double @round(double [[D]])
+; DONT-SIMPLIFY-NEXT: [[F:%.*]] = fptrunc double [[E]] to float
+; DONT-SIMPLIFY-NEXT: ret float [[F]]
+;
+; C89-SIMPLIFY-NEXT: [[D:%.*]] = fpext float [[C:%.*]] to double
+; C89-SIMPLIFY-NEXT: [[E:%.*]] = call double @round(double [[D]])
+; C89-SIMPLIFY-NEXT: [[F:%.*]] = fptrunc double [[E]] to float
+; C89-SIMPLIFY-NEXT: ret float [[F]]
;
%D = fpext float %C to double
; --> roundf
@@ -73,8 +84,19 @@ define float @test_shrink_libcall_round(float %C) {
define float @test_shrink_libcall_nearbyint(float %C) {
; CHECK-LABEL: @test_shrink_libcall_nearbyint(
-; CHECK-NEXT: [[F:%.*]] = call float @llvm.nearbyint.f32(float [[C:%.*]])
-; CHECK-NEXT: ret float [[F]]
+
+; DO-SIMPLIFY-NEXT: [[F:%.*]] = call float @llvm.nearbyint.f32(float [[C:%.*]])
+; DO-SIMPLIFY-NEXT: ret float [[F]]
+;
+; DONT-SIMPLIFY-NEXT: [[D:%.*]] = fpext float [[C:%.*]] to double
+; DONT-SIMPLIFY-NEXT: [[E:%.*]] = call double @nearbyint(double [[D]])
+; DONT-SIMPLIFY-NEXT: [[F:%.*]] = fptrunc double [[E]] to float
+; DONT-SIMPLIFY-NEXT: ret float [[F]]
+;
+; C89-SIMPLIFY-NEXT: [[D:%.*]] = fpext float [[C:%.*]] to double
+; C89-SIMPLIFY-NEXT: [[E:%.*]] = call double @nearbyint(double [[D]])
+; C89-SIMPLIFY-NEXT: [[F:%.*]] = fptrunc double [[E]] to float
+; C89-SIMPLIFY-NEXT: ret float [[F]]
;
%D = fpext float %C to double
; --> nearbyintf
@@ -85,8 +107,19 @@ define float @test_shrink_libcall_nearbyint(float %C) {
define float @test_shrink_libcall_trunc(float %C) {
; CHECK-LABEL: @test_shrink_libcall_trunc(
-; CHECK-NEXT: [[F:%.*]] = call float @llvm.trunc.f32(float [[C:%.*]])
-; CHECK-NEXT: ret float [[F]]
+
+; DO-SIMPLIFY-NEXT: [[F:%.*]] = call float @llvm.trunc.f32(float [[C:%.*]])
+; DO-SIMPLIFY-NEXT: ret float [[F]]
+;
+; DONT-SIMPLIFY-NEXT: [[D:%.*]] = fpext float [[C:%.*]] to double
+; DONT-SIMPLIFY-NEXT: [[E:%.*]] = call double @trunc(double [[D]])
+; DONT-SIMPLIFY-NEXT: [[F:%.*]] = fptrunc double [[E]] to float
+; DONT-SIMPLIFY-NEXT: ret float [[F]]
+;
+; C89-SIMPLIFY-NEXT: [[D:%.*]] = fpext float [[C:%.*]] to double
+; C89-SIMPLIFY-NEXT: [[E:%.*]] = call double @trunc(double [[D]])
+; C89-SIMPLIFY-NEXT: [[F:%.*]] = fptrunc double [[E]] to float
+; C89-SIMPLIFY-NEXT: ret float [[F]]
;
%D = fpext float %C to double
; --> truncf
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