1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-30 07:22:55 +01:00
llvm-mirror/test/Transforms/GVN/preserve-tbaa.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

31 lines
937 B
LLVM

; RUN: opt -tbaa -basicaa -gvn -S < %s | FileCheck %s
target datalayout = "e-p:64:64:64"
; GVN should preserve the TBAA tag on loads when doing PRE.
; CHECK-LABEL: @test(
; CHECK: %tmp33.pre = load i16* %P, align 2, !tbaa !0
; CHECK: br label %for.body
define void @test(i16 *%P, i16* %Q) nounwind {
entry:
br i1 undef, label %bb.nph, label %for.end
bb.nph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body, %bb.nph
%tmp33 = load i16* %P, align 2, !tbaa !0
store i16 %tmp33, i16* %Q
store i16 0, i16* %P, align 2, !tbaa !0
br i1 false, label %for.end, label %for.body
for.end: ; preds = %for.body, %entry
ret void
}
!0 = metadata !{metadata !"short", metadata !1}
!1 = metadata !{metadata !"omnipotent char", metadata !2}
!2 = metadata !{metadata !"Simple C/C++ TBAA", null}