diff options
| author | Renato Golin <renato.golin@linaro.org> | 2014-09-09 09:57:59 +0000 |
|---|---|---|
| committer | Renato Golin <renato.golin@linaro.org> | 2014-09-09 09:57:59 +0000 |
| commit | 63e27980da2ef1c0c4c0eaecb3baef494b7fbce4 (patch) | |
| tree | c2b4ecb0cc043e45584abab0e7936f91884e4562 /llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp | |
| parent | 37aeb2d7c2060c073768e504cdbcd992b2cd136b (diff) | |
| download | bcm5719-llvm-63e27980da2ef1c0c4c0eaecb3baef494b7fbce4.tar.gz bcm5719-llvm-63e27980da2ef1c0c4c0eaecb3baef494b7fbce4.zip | |
ARM: Negative offset support problem
This patch is to permit a negative offset usage for a non frame access.
Patch by Igor Oblakov.
llvm-svn: 217431
Diffstat (limited to 'llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp index e547600624a..996bb1f0014 100644 --- a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -542,11 +542,11 @@ bool ARMDAGToDAGISel::SelectAddrModeImm12(SDValue N, } if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) { - int RHSC = (int)RHS->getZExtValue(); + int RHSC = (int)RHS->getSExtValue(); if (N.getOpcode() == ISD::SUB) RHSC = -RHSC; - if (RHSC >= 0 && RHSC < 0x1000) { // 12 bits (unsigned) + if (RHSC > -0x1000 && RHSC < 0x1000) { // 12 bits Base = N.getOperand(0); if (Base.getOpcode() == ISD::FrameIndex) { int FI = cast<FrameIndexSDNode>(Base)->getIndex(); |
