1 ; Test that the strstr library call simplifier works correctly. 2 ; 3 ; RUN: opt < %s -instcombine -S | FileCheck %s 4 5 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" 6 7 @null = private constant [1 x i8] zeroinitializer 8 9 declare i8 @strstr(i8*, i8*) 10 11 define i8 @test_no_simplify1(i8* %str) { 12 ; CHECK-LABEL: @test_no_simplify1( 13 %pat = getelementptr inbounds [1 x i8], [1 x i8]* @null, i32 0, i32 0 14 %ret = call i8 @strstr(i8* %str, i8* %pat) 15 ; CHECK-NEXT: call i8 @strstr 16 ret i8 %ret 17 ; CHECK-NEXT: ret i8 %ret 18 } 19
