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llvm-mirror/test/Transforms/InstCombine/strncpy_chk-2.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

22 lines
764 B
LLVM

; Test that lib call simplification doesn't simplify __strncpy_chk calls
; with the wrong prototype.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
@a = common global [60 x i16] zeroinitializer, align 1
@b = common global [60 x i16] zeroinitializer, align 1
define void @test_no_simplify() {
; CHECK-LABEL: @test_no_simplify(
%dst = getelementptr inbounds [60 x i16]* @a, i32 0, i32 0
%src = getelementptr inbounds [60 x i16]* @b, i32 0, i32 0
; CHECK-NEXT: call i16* @__strncpy_chk
call i16* @__strncpy_chk(i16* %dst, i16* %src, i32 60, i32 60)
ret void
}
declare i16* @__strncpy_chk(i16*, i16*, i32, i32)