CodeGen: Don't crash when replacing functions
The peculiarities of C99 create scenario where an LLVM IR function
declaration may need to be replaced with a definition baring a different
type because the prototype and definition are not required to agree.
However, we were not properly deferring this when it occurred.
This fixes PR19280.
llvm-svn: 205099
diff --git a/clang/test/CodeGen/inline2.c b/clang/test/CodeGen/inline2.c
index 670ae20..84cd4db 100644
--- a/clang/test/CodeGen/inline2.c
+++ b/clang/test/CodeGen/inline2.c
@@ -39,6 +39,9 @@
// CHECK-GNU89-LABEL: define i32 @fA()
inline int fA(void) { return 0; }
+// CHECK-GNU89-LABEL: define i32 @fB()
+inline int fB() { return 0; }
+
// CHECK-GNU89-LABEL: define available_externally i32 @f4()
// CHECK-C99-LABEL: define i32 @f4()
int f4(void);
@@ -56,7 +59,11 @@
// CHECK-C99-LABEL: define available_externally i32 @fA()
+// CHECK-C99-LABEL: define i32 @fB()
+
int test_all() {
return f0() + f1() + f2() + f3() + f4() + f5() + f6() + f7() + f8() + f9()
- + fA();
+ + fA() + fB();
}
+
+int fB(void);