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