| Meador Inge | 1741850 | 2012-10-13 16:45:37 +0000 | [diff] [blame] | 1 | ; Test that the strrchr libcall simplifier works correctly. |
| 2 | ; |
| 3 | ; RUN: opt < %s -instcombine -S | FileCheck %s |
| 4 | |
| 5 | 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" |
| 6 | |
| 7 | @hello = constant [14 x i8] c"hello world\5Cn\00" |
| 8 | @chr = global i8 zeroinitializer |
| 9 | |
| 10 | declare i8 @strrchr(i8*, i32) |
| 11 | |
| 12 | define void @test_nosimplify1() { |
| 13 | ; CHECK: test_nosimplify1 |
| 14 | ; CHECK: call i8 @strrchr |
| 15 | ; CHECK: ret void |
| 16 | |
| David Blaikie | 79e6c74 | 2015-02-27 19:29:02 +0000 | [diff] [blame] | 17 | %str = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0 |
| Meador Inge | 1741850 | 2012-10-13 16:45:37 +0000 | [diff] [blame] | 18 | %dst = call i8 @strrchr(i8* %str, i32 119) |
| 19 | store i8 %dst, i8* @chr |
| 20 | ret void |
| 21 | } |