https://llvm.org/bugs/show_bug.cgi?id=30639
Bug ID: 30639
Summary: CGDebugInfo Null dereference with OpenMP array access
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: erich.ke...@intel.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Reproducer:
void fobj_offset(int n) {
int i;
int cen[n];
#pragma omp parallel for
for (i=0; i<n; i++) {
cen[i]=i;
}
}
clang -c -fopenmp -g repro.cpp
Running the above results in a crash as a result of CGDebugInfo::CreateType.
On CGDebugInfo.cpp:2184, VAT->getSizeExpr() is NULL, thus EvaluateAsInt causes
a seg fault when it dereferences "this".
This error was introduced in R279445.
I've prepared a patch, so putting under review right after this gets posted.
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