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| author | Tim Northover <tnorthover@apple.com> | 2013-08-18 18:06:03 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2013-08-18 18:06:03 +0000 |
| commit | 57cf3500a3dec411500737b91e1a3970be488337 (patch) | |
| tree | e0bc8c3a572289aa69f7ecdceab8698bce81f68d /lib/Target/ARM/ARMISelDAGToDAG.cpp | |
| parent | 3491d67d3a50e81e3f65c1bdf01dd7962dc10c46 (diff) | |
| download | llvm-57cf3500a3dec411500737b91e1a3970be488337.tar.gz llvm-57cf3500a3dec411500737b91e1a3970be488337.tar.bz2 llvm-57cf3500a3dec411500737b91e1a3970be488337.tar.xz | |
ARM: make sure we keep inline asm operands tied.
When patching inlineasm nodes to use GPRPair for 64-bit values, we
were dropping the information that two operands were tied, which
effectively broke the live-interval of vregs affected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188643 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMISelDAGToDAG.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp index 4ca3af6b3e..3298b73dad 100644 --- a/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -3614,7 +3614,10 @@ SDNode *ARMDAGToDAGISel::SelectInlineAsm(SDNode *N){ if(PairedReg.getNode()) { OpChanged[OpChanged.size() -1 ] = true; Flag = InlineAsm::getFlagWord(Kind, 1 /* RegNum*/); - Flag = InlineAsm::getFlagWordForRegClass(Flag, ARM::GPRPairRegClassID); + if (IsTiedToChangedOp) + Flag = InlineAsm::getFlagWordForMatchingOp(Flag, DefIdx); + else + Flag = InlineAsm::getFlagWordForRegClass(Flag, ARM::GPRPairRegClassID); // Replace the current flag. AsmNodeOperands[AsmNodeOperands.size() -1] = CurDAG->getTargetConstant( Flag, MVT::i32); |