File: 2008-08-07-AlignPadding1.c

package info (click to toggle)
llvm 2.6-9.1
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 57,604 kB
  • ctags: 44,336
  • sloc: cpp: 344,766; sh: 12,407; ansic: 10,617; ada: 3,070; ml: 2,505; perl: 2,496; makefile: 1,426; pascal: 1,163; exp: 389; asm: 307; python: 298; objc: 260; lisp: 182; csh: 117; xml: 38; f90: 36; tcl: 20
file content (29 lines) | stat: -rw-r--r-- 937 bytes parent folder | download | duplicates (2) 
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
 
/* RUN: %llvmgcc %s -S -o - -emit-llvm -O0 | grep {zeroinitializer.*zeroinitializer.*zeroinitializer.*zeroinitializer.*zeroinitializer.*zeroinitializer}

The FE must generate padding here both at the end of each PyG_Head and
between array elements.  Reduced from Python. */

typedef union _gc_head {
  struct {
    union _gc_head *gc_next;
    union _gc_head *gc_prev;
    long gc_refs;
  } gc;
  int dummy __attribute__((aligned(16)));
} PyGC_Head;

struct gc_generation {
  PyGC_Head head;
  int threshold;
  int count;
};

#define GEN_HEAD(n) (&generations[n].head)

/* linked lists of container objects */
static struct gc_generation generations[3] = {
        /* PyGC_Head,                           threshold,      count */
        {{{GEN_HEAD(0), GEN_HEAD(0), 0}},       700,            0},
        {{{GEN_HEAD(1), GEN_HEAD(1), 0}},       10,             0},
        {{{GEN_HEAD(2), GEN_HEAD(2), 0}},       10,             0},
};