64 lines
2.0 KiB
LLVM
64 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -instcombine < %s | FileCheck %s
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define float @test1(float %x) nounwind readnone ssp {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[SQRTF:%.*]] = call float @sqrtf(float [[X:%.*]]) #3
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; CHECK-NEXT: ret float [[SQRTF]]
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;
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%conv = fpext float %x to double
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%call = tail call double @sqrt(double %conv) readnone nounwind
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%conv1 = fptrunc double %call to float
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ret float %conv1
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}
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; PR8096
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define float @test2(float %x) nounwind readnone ssp {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[SQRTF:%.*]] = call float @sqrtf(float [[X:%.*]]) #3
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; CHECK-NEXT: ret float [[SQRTF]]
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;
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%conv = fpext float %x to double
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%call = tail call double @sqrt(double %conv) nounwind
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%conv1 = fptrunc double %call to float
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ret float %conv1
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}
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; rdar://9763193
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; Can't fold (fptrunc (sqrt (fpext x))) -> (sqrtf x) since there is another
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; use of sqrt result.
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define float @test3(float* %v) nounwind uwtable ssp {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: [[CALL34:%.*]] = call double @sqrt(double 0x7FF8000000000000) #3
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; CHECK-NEXT: [[CALL36:%.*]] = call i32 @foo(double [[CALL34]]) #4
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; CHECK-NEXT: [[CONV38:%.*]] = fptrunc double [[CALL34]] to float
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; CHECK-NEXT: ret float [[CONV38]]
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;
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%arrayidx13 = getelementptr inbounds float, float* %v, i64 2
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%tmp14 = load float, float* %arrayidx13
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%mul18 = fmul float %tmp14, %tmp14
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%add19 = fadd float undef, %mul18
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%conv = fpext float %add19 to double
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%call34 = call double @sqrt(double %conv) readnone
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%call36 = call i32 (double) @foo(double %call34) nounwind
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%conv38 = fptrunc double %call34 to float
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ret float %conv38
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}
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; PR43347 - https://bugs.llvm.org/show_bug.cgi?id=43347
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define void @0(float %f) {
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; CHECK-LABEL: @0(
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; CHECK-NEXT: [[SQRTF:%.*]] = call float @sqrtf(float [[F:%.*]]) #2
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; CHECK-NEXT: ret void
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;
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%d = fpext float %f to double
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%r = call double @sqrt(double %d)
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ret void
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}
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declare i32 @foo(double)
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declare double @sqrt(double) readnone
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