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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
17 lines
507 B
LLVM
17 lines
507 B
LLVM
; Test (fast) serialization.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s --check-prefix=Z10
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s --check-prefix=Z196
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=zEC12 | FileCheck %s --check-prefix=ZEC12
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s --check-prefix=Z13
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define void @test() {
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; Z10: bcr 15, %r0
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; Z196: bcr 14, %r0
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; ZEC12: bcr 14, %r0
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; Z13: bcr 14, %r0
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fence seq_cst
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ret void
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}
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