llvm/test/CodeGen/ARM/undef-sext.ll

; RUN: llc < %s -mtriple=armv7-apple-darwin -mcpu=cortex-a8 | FileCheck %s

; No need to sign-extend undef.

define i32 @t(i32* %a) nounwind {
entry:
; CHECK-LABEL: t:
; CHECK: ldr r0, [r0]
; CHECK: bx lr
  %0 = sext i16 undef to i32
  %1 = getelementptr inbounds i32* %a, i32 %0
  %2 = load i32* %1, align 4
  ret i32 %2
}
Minor optimization. sign-ext/anyext of undef is still undef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127598 91177308-0d34-0410-b5e6-96231b3b80d8 2011-03-14 18:15:55 +00:00			`; RUN: llc < %s -mtriple=armv7-apple-darwin -mcpu=cortex-a8 \| FileCheck %s`

			`; No need to sign-extend undef.`

			`define i32 @t(i32* %a) nounwind {`
			`entry:`
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name ".ll" \| \ while read NAME; do echo "$NAME" if ! grep -q "^; RUN: llc.debug" $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 sed -i '' "s/;\(.\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8 2013-07-14 06:24:09 +00:00			`; CHECK-LABEL: t:`
Minor optimization. sign-ext/anyext of undef is still undef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127598 91177308-0d34-0410-b5e6-96231b3b80d8 2011-03-14 18:15:55 +00:00			`; CHECK: ldr r0, [r0]`
			`; CHECK: bx lr`
			`%0 = sext i16 undef to i32`
			`%1 = getelementptr inbounds i32* %a, i32 %0`
			`%2 = load i32* %1, align 4`
			`ret i32 %2`
			`}`