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MachineSink: Fix and tweak critical-edge breaking heuristic.
[oota-llvm.git]
/
test
/
CodeGen
/
X86
/
mfence.ll
1
; RUN: llc < %s -march=x86 -mattr=+sse2 | not grep sfence
2
; RUN: llc < %s -march=x86 -mattr=+sse2 | not grep lfence
3
; RUN: llc < %s -march=x86 -mattr=+sse2 | grep mfence
4
5
define void @test() {
6
fence seq_cst
7
ret void
8
}