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db43217a24
Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
28 lines
787 B
LLVM
28 lines
787 B
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-apple-darwin -march=ppc32 | FileCheck %s
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define i32 @exchange_and_add(i32* %mem, i32 %val) nounwind {
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; CHECK-LABEL: exchange_and_add:
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; CHECK: lwarx {{r[0-9]+}}, 0, {{r[0-9]+}}
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%tmp = atomicrmw add i32* %mem, i32 %val monotonic
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; CHECK: stwcx. {{r[0-9]+}}, 0, {{r[0-9]+}}
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ret i32 %tmp
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}
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define i32 @exchange_and_cmp(i32* %mem) nounwind {
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; CHECK-LABEL: exchange_and_cmp:
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; CHECK: lwarx
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%tmppair = cmpxchg i32* %mem, i32 0, i32 1 monotonic monotonic
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%tmp = extractvalue { i32, i1 } %tmppair, 0
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; CHECK: stwcx.
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; CHECK: stwcx.
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ret i32 %tmp
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}
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define i32 @exchange(i32* %mem, i32 %val) nounwind {
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; CHECK-LABEL: exchange:
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; CHECK: lwarx
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%tmp = atomicrmw xchg i32* %mem, i32 1 monotonic
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; CHECK: stwcx.
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ret i32 %tmp
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}
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