Basically, inline builtin definition are shadowed by externally visible redefinition. This matches GCC behavior. The implementation has to workaround the fact that: 1. inline builtin are renamed at callsite during codegen, but 2. they may be shadowed by a later external definition As a consequence, during codegen, we need to walk redecls and eventually rewrite some call sites, which is totally inelegant. Differential Revision: https://reviews.llvm.org/D112059
22 lines
609 B
C
22 lines
609 B
C
// RUN: %clang_cc1 -triple x86_64 -S -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s
|
|
//
|
|
// Verifies that clang-generated *.inline are removed when shadowed by an external definition
|
|
|
|
// CHECK-NOT: strlen.inline
|
|
|
|
unsigned long strnlen(const char *, unsigned long);
|
|
void fortify_panic(const char *);
|
|
|
|
extern inline __attribute__((always_inline)) __attribute__((gnu_inline)) unsigned long strlen(const char *p) {
|
|
return 1;
|
|
}
|
|
unsigned long mystrlen(char const *s) {
|
|
return strlen(s);
|
|
}
|
|
unsigned long strlen(const char *s) {
|
|
return 2;
|
|
}
|
|
unsigned long yourstrlen(char const *s) {
|
|
return strlen(s);
|
|
}
|