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

; Test that the strstr library call simplifier works correctly.
;
; RUN: opt < %s -instcombine -S | FileCheck %s

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"

@null = private constant [1 x i8] zeroinitializer

declare i8 @strstr(i8*, i8*)

define i8 @test_no_simplify1(i8* %str) {
; CHECK-LABEL: @test_no_simplify1(
  %pat = getelementptr inbounds [1 x i8]* @null, i32 0, i32 0
  %ret = call i8 @strstr(i8* %str, i8* %pat)
; CHECK-NEXT: call i8 @strstr
  ret i8 %ret
; CHECK-NEXT: ret i8 %ret
}
instcombine: Migrate strstr optimizations This patch migrates the strstr optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167682 91177308-0d34-0410-b5e6-96231b3b80d8 2012-11-11 03:51:48 +00:00			`; Test that the strstr library call simplifier works correctly.`
			`;`
			`; RUN: opt < %s -instcombine -S \| FileCheck %s`

			`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"`

			`@null = private constant [1 x i8] zeroinitializer`

			`declare i8 @strstr(i8, i8)`

			`define i8 @test_no_simplify1(i8* %str) {`
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_no_simplify1(`
instcombine: Migrate strstr optimizations This patch migrates the strstr optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167682 91177308-0d34-0410-b5e6-96231b3b80d8 2012-11-11 03:51:48 +00:00			`%pat = getelementptr inbounds [1 x i8]* @null, i32 0, i32 0`
			`%ret = call i8 @strstr(i8* %str, i8* %pat)`
			`; CHECK-NEXT: call i8 @strstr`
			`ret i8 %ret`
			`; CHECK-NEXT: ret i8 %ret`
			`}`