File: struct-union-BE.c

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (49 lines) | stat: -rw-r--r-- 1,290 bytes parent folder | download | duplicates (18)
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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
// RUN: %clang_cc1 -triple mips-linux-gnu  -S -emit-llvm %s -o - | FileCheck %s -check-prefix=MIPS
// RUN: %clang_cc1 -triple mips64-linux-gnu  -S -emit-llvm %s -o - | FileCheck %s -check-prefix=MIPS64
// RUN: %clang_cc1 -triple armebv7-linux-gnueabihf -S -emit-llvm %s -o - | FileCheck %s -check-prefix=ARM

#include <stdarg.h>

extern void abort() __attribute__((noreturn));

struct tiny {
  char c;
};

union data {
  char c;
};

void fstr(int n, ...) {
  struct tiny x;
  va_list ap;
  va_start (ap,n);
  x = va_arg (ap, struct tiny);
  if (x.c !=  10)
    abort();
  va_end (ap);
// MIPS-NOT: %{{[0-9]+}} = getelementptr inbounds i8, i8* %argp.cur, i32 3
// MIPS64-NOT: %{{[0-9]+}} = getelementptr inbounds i8, i8* %argp.cur, i64 7
// ARM-NOT: %{{[0-9]+}} = getelementptr inbounds i8, i8* %argp.cur, i32 3
}

void funi(int n, ...) {
  union data x;
  va_list ap;
  va_start (ap,n);
  x = va_arg (ap, union data);
  if (x.c !=  10)
    abort();
  va_end (ap);
// MIPS-NOT: %{{[0-9]+}} = getelementptr inbounds i8, i8* %argp.cur, i32 3
// MIPS64-NOT: %{{[0-9]+}} = getelementptr inbounds i8, i8* %argp.cur, i64 7
// ARM-NOT: %{{[0-9]+}} = getelementptr inbounds i8, i8* %argp.cur, i32 3
}

void foo() {
  struct tiny x[3];
  union data y;
  x[0].c = 10;
  fstr(1, x[0]);
  funi(1, y);
}