Don't crash in IRGen if a conditional with 'throw' in one of its branches is
used as a branch condition.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181368 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGException.cpp b/lib/CodeGen/CGException.cpp
index 36642bc..a088d78 100644
--- a/lib/CodeGen/CGException.cpp
+++ b/lib/CodeGen/CGException.cpp
@@ -419,14 +419,16 @@
return Builder.CreateLoad(getEHSelectorSlot(), "sel");
}
-void CodeGenFunction::EmitCXXThrowExpr(const CXXThrowExpr *E) {
+void CodeGenFunction::EmitCXXThrowExpr(const CXXThrowExpr *E,
+ bool KeepInsertionPoint) {
if (!E->getSubExpr()) {
EmitNoreturnRuntimeCallOrInvoke(getReThrowFn(CGM),
ArrayRef<llvm::Value*>());
// throw is an expression, and the expression emitters expect us
// to leave ourselves at a valid insertion point.
- EmitBlock(createBasicBlock("throw.cont"));
+ if (KeepInsertionPoint)
+ EmitBlock(createBasicBlock("throw.cont"));
return;
}
@@ -440,7 +442,8 @@
CGM.getObjCRuntime().EmitThrowStmt(*this, S, false);
// This will clear insertion point which was not cleared in
// call to EmitThrowStmt.
- EmitBlock(createBasicBlock("throw.cont"));
+ if (KeepInsertionPoint)
+ EmitBlock(createBasicBlock("throw.cont"));
return;
}
@@ -478,7 +481,8 @@
// throw is an expression, and the expression emitters expect us
// to leave ourselves at a valid insertion point.
- EmitBlock(createBasicBlock("throw.cont"));
+ if (KeepInsertionPoint)
+ EmitBlock(createBasicBlock("throw.cont"));
}
void CodeGenFunction::EmitStartEHSpec(const Decl *D) {