RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-22 02:33:06 +01:00
Code Issues Projects Releases Wiki Activity

[CFLGraph] Fix a crash due to missing handling of freeze

Browse Source 
https://reviews.llvm.org/D85534#2636321
This commit is contained in:
Juneyoung Lee 2021-03-21 02:14:06 +09:00
parent c789b50f4d
commit 4bb78e2cb0
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Analysis/CFLGraph.h
View File

@ -284,6 +284,13 @@ template <typename CFLAA> class CFLGraphBuilder {
addAssignEdge(Src, &Inst);
}
void visitFreezeInst(FreezeInst &Inst) {
// Accessing freeze(ptr) is equivalent to accessing ptr.
// The former raises UB iff latter raises UB.
auto *Src = Inst.getOperand(0);
addAssignEdge(Src, &Inst);
}
void visitBinaryOperator(BinaryOperator &Inst) {
auto *Op1 = Inst.getOperand(0);
auto *Op2 = Inst.getOperand(1);