427fb35192
The LIT test cases were migrated with the script provided by Nikita Popov. Due to the size of the change it is split into several parts. Reviewed By: nemanja, amyk, nikic, PowerPC Differential Revision: https://reviews.llvm.org/D135470
27 lines
753 B
LLVM
27 lines
753 B
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-unknown-linux-gnu | FileCheck %s
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define i32 @exchange_and_add(ptr %mem, i32 %val) nounwind {
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; CHECK-LABEL: exchange_and_add:
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; CHECK: lwarx {{[0-9]+}}, 0, {{[0-9]+}}
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%tmp = atomicrmw add ptr %mem, i32 %val monotonic
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; CHECK: stwcx. {{[0-9]+}}, 0, {{[0-9]+}}
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ret i32 %tmp
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}
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define i32 @exchange_and_cmp(ptr %mem) nounwind {
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; CHECK-LABEL: exchange_and_cmp:
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; CHECK: lwarx
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%tmppair = cmpxchg ptr %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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ret i32 %tmp
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}
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define i32 @exchange(ptr %mem, i32 %val) nounwind {
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; CHECK-LABEL: exchange:
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; CHECK: lwarx
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%tmp = atomicrmw xchg ptr %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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