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llvm-mirror/test/Transforms/InstCombine/exp2-1.ll
Stephen Lin cf082ae903 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

llvm-svn: 186268
2013-07-14 01:42:54 +00:00

77 lines
2.0 KiB
LLVM

; Test that the exp2 library call simplifier works correctly.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
declare double @exp2(double)
declare float @exp2f(float)
; Check exp2(sitofp(x)) -> ldexp(1.0, sext(x)).
define double @test_simplify1(i32 %x) {
; CHECK-LABEL: @test_simplify1(
%conv = sitofp i32 %x to double
%ret = call double @exp2(double %conv)
; CHECK: call double @ldexp
ret double %ret
}
define double @test_simplify2(i16 signext %x) {
; CHECK-LABEL: @test_simplify2(
%conv = sitofp i16 %x to double
%ret = call double @exp2(double %conv)
; CHECK: call double @ldexp
ret double %ret
}
define double @test_simplify3(i8 signext %x) {
; CHECK-LABEL: @test_simplify3(
%conv = sitofp i8 %x to double
%ret = call double @exp2(double %conv)
; CHECK: call double @ldexp
ret double %ret
}
define float @test_simplify4(i32 %x) {
; CHECK-LABEL: @test_simplify4(
%conv = sitofp i32 %x to float
%ret = call float @exp2f(float %conv)
; CHECK: call float @ldexpf
ret float %ret
}
; Check exp2(uitofp(x)) -> ldexp(1.0, zext(x)).
define double @test_no_simplify1(i32 %x) {
; CHECK-LABEL: @test_no_simplify1(
%conv = uitofp i32 %x to double
%ret = call double @exp2(double %conv)
; CHECK: call double @exp2
ret double %ret
}
define double @test_simplify6(i16 zeroext %x) {
; CHECK-LABEL: @test_simplify6(
%conv = uitofp i16 %x to double
%ret = call double @exp2(double %conv)
; CHECK: call double @ldexp
ret double %ret
}
define double @test_simplify7(i8 zeroext %x) {
; CHECK-LABEL: @test_simplify7(
%conv = uitofp i8 %x to double
%ret = call double @exp2(double %conv)
; CHECK: call double @ldexp
ret double %ret
}
define float @test_simplify8(i8 zeroext %x) {
; CHECK-LABEL: @test_simplify8(
%conv = uitofp i8 %x to float
%ret = call float @exp2f(float %conv)
; CHECK: call float @ldexpf
ret float %ret
}