File: bitfield-promote.c

package info (click to toggle)
llvm-toolchain-3.7 1%3A3.7.1-5
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 345,556 kB
  • ctags: 362,199
  • sloc: cpp: 2,156,381; ansic: 458,339; objc: 91,547; python: 89,988; asm: 86,305; sh: 21,479; makefile: 6,853; perl: 5,601; ml: 5,458; pascal: 3,933; lisp: 2,429; xml: 686; cs: 239; php: 202; csh: 117
file content (35 lines) | stat: -rw-r--r-- 678 bytes parent folder | download | duplicates (49)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
// RUN: %clang_cc1 -fsyntax-only -verify %s
// expected-no-diagnostics
struct {unsigned x : 2;} x;
__typeof__((x.x+=1)+1) y;
__typeof__(x.x<<1) y;
int y;


struct { int x : 8; } x1;
long long y1;
__typeof__(((long long)x1.x + 1)) y1;


// Check for extensions: variously sized unsigned bit-fields fitting
// into a signed int promote to signed int.
enum E { ec1, ec2, ec3 };
struct S {
  enum E          e : 2;
  unsigned short us : 4;
  unsigned long long ul1 : 8;
  unsigned long long ul2 : 50;
} s;

__typeof(s.e + s.e) x_e;
int x_e;

__typeof(s.us + s.us) x_us;
int x_us;

__typeof(s.ul1 + s.ul1) x_ul1;
int x_ul1;

__typeof(s.ul2 + s.ul2) x_ul2;
unsigned long long x_ul2;