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llvm-mirror/test/Transforms/MemCpyOpt/memcpy-to-memset.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

20 lines
703 B
LLVM

; RUN: opt -memcpyopt -S < %s | FileCheck %s
@cst = internal constant [3 x i32] [i32 -1, i32 -1, i32 -1], align 4
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
declare void @foo(i32*) nounwind
define void @test1() nounwind {
%arr = alloca [3 x i32], align 4
%arr_i8 = bitcast [3 x i32]* %arr to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %arr_i8, i8* bitcast ([3 x i32]* @cst to i8*), i64 12, i32 4, i1 false)
%arraydecay = getelementptr inbounds [3 x i32]* %arr, i64 0, i64 0
call void @foo(i32* %arraydecay) nounwind
ret void
; CHECK-LABEL: @test1(
; CHECK: call void @llvm.memset
; CHECK-NOT: call void @llvm.memcpy
; CHECK: ret void
}