61d9149c73
ATOMIC_FENCE is lowered to a compiler barrier which is codegen only. There is no need to emit an instructions since the XCore provides sequential consistency. Original patch by Richard Osborne llvm-svn: 194464
17 lines
297 B
LLVM
17 lines
297 B
LLVM
; RUN: llc < %s -march=xcore | FileCheck %s
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; CHECK-LABEL: atomic_fence
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; CHECK: #MEMBARRIER
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; CHECK: #MEMBARRIER
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; CHECK: #MEMBARRIER
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; CHECK: #MEMBARRIER
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; CHECK: retsp 0
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define void @atomic_fence() nounwind {
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entry:
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fence acquire
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fence release
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fence acq_rel
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fence seq_cst
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ret void
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}
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