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llvm-project/llvm/test/Bitcode/cmpxchg-upgrade.ll

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IR: add a second ordering operand to cmpxhg for failure The syntax for "cmpxchg" should now look something like: cmpxchg i32* %addr, i32 42, i32 3 acquire monotonic where the second ordering argument gives the required semantics in the case that no exchange takes place. It should be no stronger than the first ordering constraint and cannot be either "release" or "acq_rel" (since no store will have taken place). rdar://problem/15996804 llvm-svn: 203559
2014-03-11 18:48:52 +08:00
; RUN: llvm-dis < %s.bc | FileCheck %s
verify-uselistorder: Force -preserve-bc-use-list-order llvm-svn: 216022
2014-08-20 05:08:27 +08:00
; RUN: verify-uselistorder < %s.bc
IR: add a second ordering operand to cmpxhg for failure The syntax for "cmpxchg" should now look something like: cmpxchg i32* %addr, i32 42, i32 3 acquire monotonic where the second ordering argument gives the required semantics in the case that no exchange takes place. It should be no stronger than the first ordering constraint and cannot be either "release" or "acq_rel" (since no store will have taken place). rdar://problem/15996804 llvm-svn: 203559
2014-03-11 18:48:52 +08:00
; cmpxchg-upgrade.ll.bc was produced by running a version of llvm-as from just
; before the IR change on this file.
define void @test(i32* %addr) {
cmpxchg i32* %addr, i32 42, i32 0 monotonic
; CHECK: cmpxchg i32* %addr, i32 42, i32 0 monotonic monotonic
cmpxchg i32* %addr, i32 42, i32 0 acquire
; CHECK: cmpxchg i32* %addr, i32 42, i32 0 acquire acquire
cmpxchg i32* %addr, i32 42, i32 0 release
; CHECK: cmpxchg i32* %addr, i32 42, i32 0 release monotonic
cmpxchg i32* %addr, i32 42, i32 0 acq_rel
; CHECK: cmpxchg i32* %addr, i32 42, i32 0 acq_rel acquire
cmpxchg i32* %addr, i32 42, i32 0 seq_cst
; CHECK: cmpxchg i32* %addr, i32 42, i32 0 seq_cst seq_cst
ret void
Fix line-endings, NFC A follow-up commit is adding a RUN line to each of these tests, so fix the line endings first. This is a whitespace-only change. llvm-svn: 214156
2014-07-29 09:10:57 +08:00
}