llvm/test/Transforms/InstCombine/weak-symbols.ll
Stephen Lin 15bfd6d3ad Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change.
This conversion 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/;\(.*\)\([A-Za-z0-9_]*\):\( *\)define\([^@]*\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3define\4@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186269 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:50:49 +00:00

34 lines
973 B
LLVM

; PR4738 - Test that the library call simplifier doesn't assume anything about
; weak symbols.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
@real_init = weak_odr constant [2 x i8] c"y\00"
@fake_init = weak constant [2 x i8] c"y\00"
@.str = private constant [2 x i8] c"y\00"
define i32 @foo() nounwind {
; CHECK-LABEL: define i32 @foo(
; CHECK: call i32 @strcmp
; CHECK: ret i32 %temp1
entry:
%str1 = getelementptr inbounds [2 x i8]* @fake_init, i64 0, i64 0
%str2 = getelementptr inbounds [2 x i8]* @.str, i64 0, i64 0
%temp1 = call i32 @strcmp(i8* %str1, i8* %str2) nounwind readonly
ret i32 %temp1
}
define i32 @bar() nounwind {
; CHECK-LABEL: define i32 @bar(
; CHECK: ret i32 0
entry:
%str1 = getelementptr inbounds [2 x i8]* @real_init, i64 0, i64 0
%str2 = getelementptr inbounds [2 x i8]* @.str, i64 0, i64 0
%temp1 = call i32 @strcmp(i8* %str1, i8* %str2) nounwind readonly
ret i32 %temp1
}
declare i32 @strcmp(i8*, i8*) nounwind readonly