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- ; Test that the strcat libcall 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"
- @empty = constant [1 x i8] c"\00"
- @a = common global [32 x i8] zeroinitializer, align 1
- declare i16* @strcat(i8*, i8*)
- define void @test_nosimplify1() {
- ; CHECK-LABEL: @test_nosimplify1(
- ; CHECK: call i16* @strcat
- ; CHECK: ret void
- %dst = getelementptr [32 x i8], [32 x i8]* @a, i32 0, i32 0
- %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
- call i16* @strcat(i8* %dst, i8* %src)
- ret void
- }
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