diff options
| author | Martin Storsjo <martin@martin.st> | 2018-03-17 20:08:48 +0000 |
|---|---|---|
| committer | Martin Storsjo <martin@martin.st> | 2018-03-17 20:08:48 +0000 |
| commit | 36d6419cc55dd782e2c727698bdff82a8bf6be35 (patch) | |
| tree | 83e65eb8d981dad6d727a5733e36bebd86a78ca6 | |
| parent | 5f0ab71b623fc5ff5734b7e95ae1d432acddba05 (diff) | |
| download | bcm5719-llvm-36d6419cc55dd782e2c727698bdff82a8bf6be35.tar.gz bcm5719-llvm-36d6419cc55dd782e2c727698bdff82a8bf6be35.zip | |
[AArch64] Skip an unnecessary getCopyToReg in DYNAMIC_STACKALLOC
Differential Revision: https://reviews.llvm.org/D44586
llvm-svn: 327779
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64ISelLowering.cpp | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp index be14561973d..43b2b1cc46b 100644 --- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp +++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp @@ -7527,13 +7527,10 @@ AArch64TargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op, SDValue SP = DAG.getCopyFromReg(Chain, dl, AArch64::SP, MVT::i64); Chain = SP.getValue(1); SP = DAG.getNode(ISD::SUB, dl, MVT::i64, SP, Size); - Chain = DAG.getCopyToReg(Chain, dl, AArch64::SP, SP); - - if (Align) { + if (Align) SP = DAG.getNode(ISD::AND, dl, VT, SP.getValue(0), DAG.getConstant(-(uint64_t)Align, dl, VT)); - Chain = DAG.getCopyToReg(Chain, dl, AArch64::SP, SP); - } + Chain = DAG.getCopyToReg(Chain, dl, AArch64::SP, SP); Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(0, dl, true), DAG.getIntPtrConstant(0, dl, true), SDValue(), dl); |
