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ef8c006d34
A cross-thread sequentially consistent fence should be lowered into z/Architecture's BCR serialization instruction, instead of causing a fatal error in the back-end. Author: bryanpkc Differential Revision: http://reviews.llvm.org/D18644 llvm-svn: 265292
14 lines
256 B
LLVM
14 lines
256 B
LLVM
; Serialization is emitted only for fence seq_cst.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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define void @test() {
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; CHECK: #MEMBARRIER
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fence acquire
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; CHECK: #MEMBARRIER
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fence release
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; CHECK: #MEMBARRIER
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fence acq_rel
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ret void
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}
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