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comparison test/CodeGen/X86/2010-10-08-cmpxchg8b.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 54457678186b
children 803732b1fca8
comparison
equal deleted inserted replaced
84:f3e34b893a5f 95:afa8332a0e37
14 ; MachineMemOperand. 14 ; MachineMemOperand.
15 define void @foo(i64* %ptr) nounwind inlinehint { 15 define void @foo(i64* %ptr) nounwind inlinehint {
16 entry: 16 entry:
17 br label %loop 17 br label %loop
18 loop: 18 loop:
19 ; CHECK: lock 19 ; CHECK: lock cmpxchg8b
20 ; CHECK-NEXT: cmpxchg8b
21 %pair = cmpxchg i64* %ptr, i64 0, i64 1 monotonic monotonic 20 %pair = cmpxchg i64* %ptr, i64 0, i64 1 monotonic monotonic
22 %r = extractvalue { i64, i1 } %pair, 0 21 %r = extractvalue { i64, i1 } %pair, 0
23 %stored1 = icmp eq i64 %r, 0 22 %stored1 = icmp eq i64 %r, 0
24 br i1 %stored1, label %loop, label %continue 23 br i1 %stored1, label %loop, label %continue
25 continue: 24 continue: