llvm/test/Transforms/InstCombine/sqrt.ll
Stephen Lin 39f4e8d9cc Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
This update was done with the following bash script:

  find test/Transforms -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00

55 lines
1.6 KiB
LLVM

; RUN: opt -S -instcombine < %s | FileCheck %s
define float @test1(float %x) nounwind readnone ssp {
entry:
; CHECK-LABEL: @test1(
; CHECK-NOT: fpext
; CHECK-NOT: sqrt(
; CHECK: sqrtf(
; CHECK-NOT: fptrunc
%conv = fpext float %x to double ; <double> [#uses=1]
%call = tail call double @sqrt(double %conv) readnone nounwind ; <double> [#uses=1]
%conv1 = fptrunc double %call to float ; <float> [#uses=1]
; CHECK: ret float
ret float %conv1
}
; PR8096
define float @test2(float %x) nounwind readnone ssp {
entry:
; CHECK-LABEL: @test2(
; CHECK-NOT: fpext
; CHECK-NOT: sqrt(
; CHECK: sqrtf(
; CHECK-NOT: fptrunc
%conv = fpext float %x to double ; <double> [#uses=1]
%call = tail call double @sqrt(double %conv) nounwind ; <double> [#uses=1]
%conv1 = fptrunc double %call to float ; <float> [#uses=1]
; CHECK: ret 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 {
entry:
; CHECK-LABEL: @test3(
; CHECK: sqrt(
; CHECK-NOT: sqrtf(
; CHECK: fptrunc
%arrayidx13 = getelementptr inbounds float* %v, i64 2
%tmp14 = load 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