| ; Test serialization instructions. | |
| ; | |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | \ | |
| ; RUN: FileCheck %s -check-prefix=CHECK-FULL | |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | \ | |
| ; RUN: FileCheck %s -check-prefix=CHECK-FAST | |
| ; Check that volatile loads produce a serialisation. | |
| define i32 @f1(i32 *%src) { | |
| ; CHECK-FULL-LABEL: f1: | |
| ; CHECK-FULL: bcr 15, %r0 | |
| ; CHECK-FULL: l %r2, 0(%r2) | |
| ; CHECK-FULL: br %r14 | |
| ; | |
| ; CHECK-FAST-LABEL: f1: | |
| ; CHECK-FAST: bcr 14, %r0 | |
| ; CHECK-FAST: l %r2, 0(%r2) | |
| ; CHECK-FAST: br %r14 | |
| %val = load volatile i32 , i32 *%src | |
| ret i32 %val | |
| } |