llvm-6502/test/Transforms/InstCombine/strcmp-2.ll

; Test that the strcmp library call simplifier works correctly.
; 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"

@hello = constant [6 x i8] c"hello\00"
@hell = constant [5 x i8] c"hell\00"

declare i16 @strcmp(i8*, i8*)

define i16 @test_nosimplify() {
; CHECK-LABEL: @test_nosimplify(
; CHECK: call i16 @strcmp
; CHECK: ret i16 %temp1

  %str1 = getelementptr inbounds [5 x i8]* @hell, i32 0, i32 0
  %str2 = getelementptr inbounds [6 x i8]* @hello, i32 0, i32 0
  %temp1 = call i16 @strcmp(i8* %str1, i8* %str2)
  ret i16 %temp1
}
instcombine: Migrate strcmp and strncmp optimizations This patch migrates the strcmp and strncmp optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165915 91177308-0d34-0410-b5e6-96231b3b80d8 2012-10-15 03:47:37 +00:00			`; Test that the strcmp library call simplifier works correctly.`
			`; 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"`

			`@hello = constant [6 x i8] c"hello\00"`
			`@hell = constant [5 x i8] c"hell\00"`

			`declare i16 @strcmp(i8, i8)`

			`define i16 @test_nosimplify() {`
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: @test_nosimplify(`
instcombine: Migrate strcmp and strncmp optimizations This patch migrates the strcmp and strncmp optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165915 91177308-0d34-0410-b5e6-96231b3b80d8 2012-10-15 03:47:37 +00:00			`; CHECK: call i16 @strcmp`
			`; CHECK: ret i16 %temp1`

			`%str1 = getelementptr inbounds [5 x i8]* @hell, i32 0, i32 0`
			`%str2 = getelementptr inbounds [6 x i8]* @hello, i32 0, i32 0`
			`%temp1 = call i16 @strcmp(i8* %str1, i8* %str2)`
			`ret i16 %temp1`
			`}`