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Diffstat (limited to 'test/CodeGen/SystemZ/serialize-01.ll')
| -rw-r--r-- | test/CodeGen/SystemZ/serialize-01.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/serialize-01.ll b/test/CodeGen/SystemZ/serialize-01.ll new file mode 100644 index 0000000000..7801fac8d4 --- /dev/null +++ b/test/CodeGen/SystemZ/serialize-01.ll @@ -0,0 +1,21 @@ +; 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 *%src + ret i32 %val +} |