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| author | Elena Demikhovsky <elena.demikhovsky@intel.com> | 2013-10-14 07:26:51 +0000 |
|---|---|---|
| committer | Elena Demikhovsky <elena.demikhovsky@intel.com> | 2013-10-14 07:26:51 +0000 |
| commit | 55240a5ddbaebc44c9acb0353c18a394b06f348f (patch) | |
| tree | 7060de669bec65c5609de612ac288b5d13e668d7 /lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | |
| parent | f50045e90d347f9d7c951d46ad83b2369d1e3cb6 (diff) | |
| download | llvm-55240a5ddbaebc44c9acb0353c18a394b06f348f.tar.gz llvm-55240a5ddbaebc44c9acb0353c18a394b06f348f.tar.bz2 llvm-55240a5ddbaebc44c9acb0353c18a394b06f348f.tar.xz | |
Fixed a bug in dynamic allocation memory on stack.
The alignment of allocated space was wrong, see Bugzila 17345.
Done by Zvi Rackover <zvi.rackover@intel.com>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192573 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index ee373f8040..d805d2c4c7 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1581,10 +1581,10 @@ void SelectionDAGLegalize::ExpandDYNAMIC_STACKALLOC(SDNode* Node, Chain = SP.getValue(1); unsigned Align = cast<ConstantSDNode>(Tmp3)->getZExtValue(); unsigned StackAlign = TM.getFrameLowering()->getStackAlignment(); - if (Align > StackAlign) - SP = DAG.getNode(ISD::AND, dl, VT, SP, - DAG.getConstant(-(uint64_t)Align, VT)); Tmp1 = DAG.getNode(ISD::SUB, dl, VT, SP, Size); // Value + if (Align > StackAlign) + Tmp1 = DAG.getNode(ISD::AND, dl, VT, Tmp1, + DAG.getConstant(-(uint64_t)Align, VT)); Chain = DAG.getCopyToReg(Chain, dl, SPReg, Tmp1); // Output chain Tmp2 = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(0, true), |