a79ac14fa6
Essentially the same as the GEP change in r230786.
A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)
import fileinput
import sys
import re
pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")
for line in sys.stdin:
sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7649
llvm-svn: 230794
49 lines
1.1 KiB
LLVM
49 lines
1.1 KiB
LLVM
; RUN: llc < %s -march=ppc64 | FileCheck %s
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define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind {
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; CHECK-LABEL: exchange_and_add:
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; CHECK: ldarx
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%tmp = atomicrmw add i64* %mem, i64 %val monotonic
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; CHECK: stdcx.
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ret i64 %tmp
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}
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define i64 @exchange_and_cmp(i64* %mem) nounwind {
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; CHECK-LABEL: exchange_and_cmp:
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; CHECK: ldarx
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%tmppair = cmpxchg i64* %mem, i64 0, i64 1 monotonic monotonic
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%tmp = extractvalue { i64, i1 } %tmppair, 0
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; CHECK: stdcx.
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; CHECK: stdcx.
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ret i64 %tmp
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}
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define i64 @exchange(i64* %mem, i64 %val) nounwind {
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; CHECK-LABEL: exchange:
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; CHECK: ldarx
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%tmp = atomicrmw xchg i64* %mem, i64 1 monotonic
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; CHECK: stdcx.
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ret i64 %tmp
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}
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define void @atomic_store(i64* %mem, i64 %val) nounwind {
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entry:
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; CHECK: @atomic_store
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store atomic i64 %val, i64* %mem release, align 64
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; CHECK: sync 1
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; CHECK-NOT: stdcx
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; CHECK: std
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ret void
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}
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define i64 @atomic_load(i64* %mem) nounwind {
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entry:
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; CHECK: @atomic_load
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%tmp = load atomic i64, i64* %mem acquire, align 64
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; CHECK-NOT: ldarx
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; CHECK: ld
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; CHECK: sync 1
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ret i64 %tmp
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}
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