File: varargs_unreachable.c

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (14 lines) | stat: -rw-r--r-- 619 bytes parent folder | download | duplicates (30) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
// RUN: %clang_cc1 -fsyntax-only -verify %s -triple x86_64-apple-darwin9
// expected-no-diagnostics

// From <rdar://problem/12322000>.  Do not warn about undefined behavior of parameter
// argument types in unreachable code in a macro.
#define VA_ARG_RDAR12322000(Marker, TYPE)         ((sizeof (TYPE) < sizeof (UINTN_RDAR12322000)) ? (TYPE)(__builtin_va_arg (Marker, UINTN_RDAR12322000)) : (TYPE)(__builtin_va_arg (Marker, TYPE)))

// 64-bit system
typedef unsigned long long  UINTN_RDAR12322000;

int test_VA_ARG_RDAR12322000 (__builtin_va_list Marker)
{
  return VA_ARG_RDAR12322000 (Marker, short); // no-warning
}