| Marcin Koscielnicki | fd4b6b9 | 2016-06-17 20:24:07 +0000 | [diff] [blame] | 1 | ; Test that strlen/strnlen won't be converted to SRST if calls are |
| 2 | ; marked with nobuiltin, eg. for sanitizers. |
| 3 | ; |
| 4 | ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| 5 | |
| 6 | declare i64 @strlen(i8 *%src) |
| 7 | declare i64 @strnlen(i8 *%src, i64 %len) |
| 8 | |
| 9 | define i64 @f1(i32 %dummy, i8 *%src) { |
| 10 | ; CHECK-LABEL: f1: |
| 11 | ; CHECK: brasl %r14, strlen |
| 12 | ; CHECK: br %r14 |
| 13 | %res = call i64 @strlen(i8 *%src) nobuiltin |
| 14 | ret i64 %res |
| 15 | } |
| 16 | |
| 17 | ; Likewise for strnlen. |
| 18 | define i64 @f2(i64 %len, i8 *%src) { |
| 19 | ; CHECK-LABEL: f2: |
| 20 | ; CHECK-NOT: srst |
| 21 | ; CHECK: brasl %r14, strnlen |
| 22 | ; CHECK: br %r14 |
| 23 | %res = call i64 @strnlen(i8 *%src, i64 %len) nobuiltin |
| 24 | ret i64 %res |
| 25 | } |