46 lines
1.6 KiB
Diff
46 lines
1.6 KiB
Diff
Pull in r200130 from upstream llvm trunk (by Jakob Stoklund Olesen):
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Fix swapped CASA operands.
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Found by SingleSource/UnitTests/AtomicOps.c
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Introduced here: http://svnweb.freebsd.org/changeset/base/262261
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Index: lib/Target/Sparc/SparcISelLowering.cpp
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===================================================================
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--- lib/Target/Sparc/SparcISelLowering.cpp
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+++ lib/Target/Sparc/SparcISelLowering.cpp
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@@ -2972,7 +2972,7 @@ SparcTargetLowering::expandAtomicRMW(MachineInstr
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// loop:
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// %val = phi %val0, %dest
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// %upd = op %val, %rs2
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- // %dest = cas %addr, %upd, %val
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+ // %dest = cas %addr, %val, %upd
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// cmp %val, %dest
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// bne loop
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// done:
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@@ -3031,7 +3031,7 @@ SparcTargetLowering::expandAtomicRMW(MachineInstr
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}
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BuildMI(LoopMBB, DL, TII.get(is64Bit ? SP::CASXrr : SP::CASrr), DestReg)
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- .addReg(AddrReg).addReg(UpdReg).addReg(ValReg)
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+ .addReg(AddrReg).addReg(ValReg).addReg(UpdReg)
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.setMemRefs(MI->memoperands_begin(), MI->memoperands_end());
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BuildMI(LoopMBB, DL, TII.get(SP::CMPrr)).addReg(ValReg).addReg(DestReg);
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BuildMI(LoopMBB, DL, TII.get(is64Bit ? SP::BPXCC : SP::BCOND))
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Index: test/CodeGen/SPARC/atomics.ll
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===================================================================
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--- test/CodeGen/SPARC/atomics.ll
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+++ test/CodeGen/SPARC/atomics.ll
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@@ -64,8 +64,8 @@ entry:
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; CHECK-LABEL: test_load_add_32
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; CHECK: membar
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-; CHECK: add
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-; CHECK: cas [%o0]
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+; CHECK: add [[V:%[gilo][0-7]]], %o1, [[U:%[gilo][0-7]]]
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+; CHECK: cas [%o0], [[V]], [[U]]
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; CHECK: membar
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define zeroext i32 @test_load_add_32(i32* %p, i32 zeroext %v) {
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entry:
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