Fix crashes from malformed programs.

2011-12-12 13:35:24 -08:00
parent 46bfef3fce
commit 5b48354d9a
2 changed files with 8 additions and 1 deletions
--- a/ctx.cpp
+++ b/ctx.cpp
@@ -1850,6 +1850,11 @@ llvm::Value *
 FunctionEmitContext::AllocaInst(LLVM_TYPE_CONST llvm::Type *llvmType, 
                                const char *name, int align, 
                                bool atEntryBlock) {
+    if (llvmType == NULL) {
+        assert(m->errorCount > 0);
+        return NULL;
+    }
+
    llvm::AllocaInst *inst = NULL;
    if (atEntryBlock) {
        // We usually insert it right before the jump instruction at the