[llvm] e04fe9a - [Statepoint] Fix bug found by sanitaizer.

[Denis Antrushin via llvm-commits]

Author: Denis Antrushin
Date: 2020-07-16T23:06:53+03:00
New Revision: e04fe9aefd4b95e0f0d93b14be28aa1ae2f42258

URL: https://github.com/llvm/llvm-project/commit/e04fe9aefd4b95e0f0d93b14be28aa1ae2f42258
DIFF: https://github.com/llvm/llvm-project/commit/e04fe9aefd4b95e0f0d93b14be28aa1ae2f42258.diff

LOG: [Statepoint] Fix bug found by sanitaizer.

Statepoint has no static operands, so it cannot be verified
against MCInstrDescr. Revert NumDefs change introduced by ef658ebd629.

Added: 
    

Modified: 
    llvm/lib/CodeGen/MachineVerifier.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index 63f534f20a71..c1a2c4e0bc6e 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -1565,9 +1565,6 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
   if (MCID.getOpcode() == TargetOpcode::PATCHPOINT)
     NumDefs = (MONum == 0 && MO->isReg()) ? NumDefs : 0;
 
-  if (MCID.getOpcode() == TargetOpcode::STATEPOINT)
-    NumDefs = MI->getNumDefs();
-
   // The first MCID.NumDefs operands must be explicit register defines
   if (MONum < NumDefs) {
     const MCOperandInfo &MCOI = MCID.OpInfo[MONum];