RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-02-07 19:19:26 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[PlaceSafepoints] Assert that the gc.safepoint_poll function is present in the module.

Browse Source 
If running the PlaceSafepoints pass on a module which doesn't have the
gc.safepoint_poll function without disabling entry and backedge safepoints,
previously the pass crashed with an obscure error because of a null pointer.
Now it fails the assert instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256580 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Manuel Jacob 2015-12-29 21:57:55 +00:00
parent 733af2eb65
commit df4a54ad91
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lib/Transforms/Scalar/PlaceSafepoints.cpp
View File

@ -762,6 +762,7 @@ InsertSafepointPoll(Instruction *InsertBefore,
// path call - where we need to insert a safepoint (parsepoint).
auto *F = M->getFunction(GCSafepointPollName);
assert(F && "gc.safepoint_poll function is missing");
assert(F->getType()->getElementType() ==
FunctionType::get(Type::getVoidTy(M->getContext()), false) &&
"gc.safepoint_poll declared with wrong type");