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