Add a lint check for mismatched return types, inspired by PR6944.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108162 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/Lint.cpp b/lib/Analysis/Lint.cpp
index 60654e6..9f1b30d 100644
--- a/lib/Analysis/Lint.cpp
+++ b/lib/Analysis/Lint.cpp
@@ -225,6 +225,10 @@
"Undefined behavior: Call argument count mismatches callee "
"argument count", &I);
+ Assert1(FT->getReturnType() == I.getType(),
+ "Undefined behavior: Call return type mismatches "
+ "callee return type", &I);
+
// Check argument types (in case the callee was casted) and attributes.
// TODO: Verify that caller and callee attributes are compatible.
Function::arg_iterator PI = F->arg_begin(), PE = F->arg_end();
diff --git a/test/Other/lint.ll b/test/Other/lint.ll
index 9a10abf..dee3d11 100644
--- a/test/Other/lint.ll
+++ b/test/Other/lint.ll
@@ -154,3 +154,12 @@
%x = volatile load i32* %t3
br label %exit
}
+
+; CHECK: Call return type mismatches callee return type
+%struct = type { double, double }
+declare i32 @nonstruct_callee() nounwind
+define void @struct_caller() nounwind {
+entry:
+ call %struct bitcast (i32 ()* @foo to %struct ()*)()
+ ret void
+}