| ; 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 |
| } |
