llvm-6502/test/Transforms/InstCombine/load-select.ll

; RUN: opt < %s -instcombine -S | FileCheck %s

target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32"

@a = constant [2 x i32] [i32 3, i32 6]            ; <[2 x i32]*> [#uses=2]

define i32 @b(i32 %y) nounwind readonly {
; CHECK-LABEL: @b(
; CHECK-NOT: load
; CHECK: ret i32
entry:
  %0 = icmp eq i32 %y, 0                          ; <i1> [#uses=1]
  %storemerge = select i1 %0, i32* getelementptr inbounds ([2 x i32]* @a, i32 0, i32 1), i32* getelementptr inbounds ([2 x i32]* @a, i32 0, i32 0) ; <i32*> [#uses=1]
  %1 = load i32* %storemerge, align 4             ; <i32> [#uses=1]
  ret i32 %1
}
Improve isSafeToLoadUnconditionally to recognize that GEPs with constant indices are safe if the result is known to be within the bounds of the underlying object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94829 91177308-0d34-0410-b5e6-96231b3b80d8 2010-01-29 19:19:08 +00:00			`; RUN: opt < %s -instcombine -S \| FileCheck %s`

			`target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32"`

			`@a = constant [2 x i32] [i32 3, i32 6] ; <[2 x i32]*> [#uses=2]`

Remove ARM-specific calling convention from this test. Target data is needed for this test, but otherwise, there's nothing ARM-specific about it and no need to specify the calling convention. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94862 91177308-0d34-0410-b5e6-96231b3b80d8 2010-01-30 00:40:23 +00:00			`define i32 @b(i32 %y) nounwind readonly {`
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8 2013-07-14 01:42:54 +00:00			`; CHECK-LABEL: @b(`
Improve isSafeToLoadUnconditionally to recognize that GEPs with constant indices are safe if the result is known to be within the bounds of the underlying object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94829 91177308-0d34-0410-b5e6-96231b3b80d8 2010-01-29 19:19:08 +00:00			`; CHECK-NOT: load`
			`; CHECK: ret i32`
			`entry:`
			`%0 = icmp eq i32 %y, 0 ; <i1> [#uses=1]`
			`%storemerge = select i1 %0, i32* getelementptr inbounds ([2 x i32]* @a, i32 0, i32 1), i32* getelementptr inbounds ([2 x i32]* @a, i32 0, i32 0) ; <i32*> [#uses=1]`
			`%1 = load i32* %storemerge, align 4 ; <i32> [#uses=1]`
			`ret i32 %1`
			`}`