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llvm-mirror/test/Transforms/GVN/malloc-load-removal.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

32 lines
990 B
LLVM

; RUN: opt -S -basicaa -gvn < %s | FileCheck %s
; RUN: opt -S -basicaa -gvn -disable-simplify-libcalls < %s | FileCheck %s -check-prefix=CHECK_NO_LIBCALLS
; PR13694
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.8.0"
declare i8* @malloc(i64) nounwind
define noalias i8* @test() nounwind uwtable ssp {
entry:
%call = tail call i8* @malloc(i64 100) nounwind
%0 = load i8* %call, align 1
%tobool = icmp eq i8 %0, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
store i8 0, i8* %call, align 1
br label %if.end
if.end: ; preds = %if.then, %entry
ret i8* %call
; CHECK-LABEL: @test(
; CHECK-NOT: load
; CHECK-NOT: icmp
; CHECK_NO_LIBCALLS-LABEL: @test(
; CHECK_NO_LIBCALLS: load
; CHECK_NO_LIBCALLS: icmp
}