maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Tentative fix for global-buffer-overflow caused by r188426. Found by AddressSanitizer 

llvm-svn: 188448
This commit is contained in:
Alexey Samsonov 2013-08-15 07:11:34 +00:00
parent 4362261b00
commit 3186eb3efd
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
llvm/lib/Target/R600/AMDGPUISelDAGToDAG.cpp
View File

@ -115,7 +115,10 @@ const TargetRegisterClass *AMDGPUDAGToDAGISel::getOperandRegClass(SDNode *N,
switch (N->getMachineOpcode()) {
default: {
const MCInstrDesc &Desc = TM.getInstrInfo()->get(N->getMachineOpcode());
int RegClass = Desc.OpInfo[Desc.getNumDefs() + OpNo].RegClass;
unsigned OpIdx = Desc.getNumDefs() + OpNo;
if (OpIdx >= Desc.getNumOperands())
return NULL;
int RegClass = Desc.OpInfo[OpIdx].RegClass;
if (RegClass == -1) {
return NULL;
}