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llvm-mirror/test/Transforms/InstSimplify/AndOrXor.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

23 lines
448 B
LLVM

; RUN: opt < %s -instsimplify -S | FileCheck %s
define i64 @pow2(i32 %x) {
; CHECK-LABEL: @pow2(
%negx = sub i32 0, %x
%x2 = and i32 %x, %negx
%e = zext i32 %x2 to i64
%nege = sub i64 0, %e
%e2 = and i64 %e, %nege
ret i64 %e2
; CHECK: ret i64 %e
}
define i64 @pow2b(i32 %x) {
; CHECK-LABEL: @pow2b(
%sh = shl i32 2, %x
%e = zext i32 %sh to i64
%nege = sub i64 0, %e
%e2 = and i64 %e, %nege
ret i64 %e2
; CHECK: ret i64 %e
}