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authorChris Lattner <sabre@nondot.org>2007-08-06 21:00:37 +0000
committerChris Lattner <sabre@nondot.org>2007-08-06 21:00:37 +0000
commit6df20efcc33aa4f730f4d6406e11b9fe1efd377e (patch)
tree84af46add93ff837105886a82a3dc4686e92eb44
parenta583990ec83a4773608084a9694943ddd268e571 (diff)
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Fix PR1577, a crash on invalid bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40874 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/AsmParser/llvmAsmParser.y1
-rw-r--r--test/Assembler/2007-08-06-AliasInvalid.ll7
2 files changed, 8 insertions, 0 deletions
diff --git a/lib/AsmParser/llvmAsmParser.y b/lib/AsmParser/llvmAsmParser.y
index 9d7b063..adf6ead 100644
--- a/lib/AsmParser/llvmAsmParser.y
+++ b/lib/AsmParser/llvmAsmParser.y
@@ -1980,6 +1980,7 @@ ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
AliaseeRef : ResultTypes SymbolicValueRef {
const Type* VTy = $1->get();
Value *V = getVal(VTy, $2);
+ CHECK_FOR_ERROR
GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
if (!Aliasee)
GEN_ERROR("Aliases can be created only to global values");
diff --git a/test/Assembler/2007-08-06-AliasInvalid.ll b/test/Assembler/2007-08-06-AliasInvalid.ll
new file mode 100644
index 0000000..0711e03
--- /dev/null
+++ b/test/Assembler/2007-08-06-AliasInvalid.ll
@@ -0,0 +1,7 @@
+; RUN: llvm-as < %s > /dev/null |& grep {Invalid type for reference to global}
+; PR1577
+
+@anInt = global i32 1 alias i32 @anAlias
+define i32 @main() {
+ ret i32 0
+}