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