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llvm-mirror/test/Transforms/InstCombine/2012-09-17-ZeroSizedAlloca.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

25 lines
795 B
LLVM

; RUN: opt -S -instcombine < %s | FileCheck %s
; When merging zero sized alloca check that requested alignments of the allocas
; are obeyed.
@x = global i8* null, align 8
@y = global i8* null, align 8
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"
; CHECK-LABEL: @f(
; CHECK-NEXT: alloca [0 x i8], align 1024
; CHECK-NOT: alloca
; CHECK: ret void
define void @f() {
%1 = alloca [0 x i8], align 1
%2 = alloca [0 x i8], align 1024
%3 = getelementptr inbounds [0 x i8]* %1, i64 0, i64 0
%4 = getelementptr inbounds [0 x i8]* %2, i64 0, i64 0
store i8* %3, i8** @x, align 8
store i8* %4, i8** @y, align 8
ret void
}