| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; Test that the strncat 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* @strncat(i8*, i8*, i32) |
| |
| define void @test_nosimplify1() { |
| ; CHECK-LABEL: @test_nosimplify1( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i16* @strncat(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i32 13) |
| ; CHECK-NEXT: 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* @strncat(i8* %dst, i8* %src, i32 13) |
| ret void |
| } |
