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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc2/] [gcc/] [testsuite/] [gcc.target/] [i386/] [pr36533.c] - Rev 318
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/* PR target/36533 */ /* { dg-do run { target { { i?86-*-linux* x86_64-*-linux* } && ilp32 } } } */ /* { dg-options "-Os" } */ #include <string.h> #include <sys/mman.h> #ifndef MAP_ANONYMOUS #define MAP_ANONYMOUS MAP_ANON #endif typedef struct S1 { unsigned long s1; struct S1 *s2; char *s3; } S1; typedef struct { unsigned int s4; unsigned int s5; int s6; unsigned int *s7; } S2; typedef struct { unsigned int s8; unsigned short s9; unsigned char s10; unsigned char s11; char s12[255]; } S3; typedef struct { unsigned int s4; unsigned short s13; unsigned short s14; } S4; typedef struct { char s15[16]; unsigned long s16; } S5; typedef struct { char s15[48]; S5 *s17; } S6; typedef struct { S1 *s18; } S7; __attribute__((regparm (3), noinline)) int fn1 (const char *x, void *y, S1 *z) { asm volatile ("" : : : "memory"); return *x + (y != 0); } __attribute__((regparm (3), noinline)) int fn2 (const char *x, int y, S2 *z) { asm volatile ("" : : : "memory"); return 0; } static inline __attribute__ ((always_inline)) unsigned int fn4 (unsigned short x) { unsigned len = x; if (len == ((1 << 16) - 1)) return 1 << 16; return len; } static inline __attribute__ ((always_inline)) S3 * fn3 (S3 *p) { return (S3 *) ((char *) p + fn4 (p->s9)); } __attribute__((regparm (3), noinline)) int fn5 (void) { asm volatile ("" : : : "memory"); return 0; } static inline __attribute__ ((always_inline)) int fn6 (S3 *w, int x, S2 *y, S4 *z) { int a = 2; char *b = (char *) w; S2 c = *y; while ((char *) w < b + x - 2 * sizeof (S4)) { if (w->s10 && w->s8) { fn2 (w->s12, w->s10, &c); z--; z->s4 = c.s4; z->s13 = (unsigned short) ((char *) w - b); z->s14 = w->s9; a++; fn5 (); } w = fn3 (w); } return a; } __attribute__((regparm (3), noinline)) unsigned int test (void *u, S6 *v, S1 **w, S7 *x, S2 *y, S1 *z) { unsigned b = v->s17->s16; unsigned a; S4 *c; unsigned d, e, f, i; fn1 (__func__, u, x->s18); c = (S4 *) (z->s3 + b); a = fn6 ((S3 *) (*w)->s3, b, y, c); c -= a; f = 0; e = 2; for (i = a - 1; ; i--) { if (f + (unsigned short) (c[i].s14 / 2) > b / 2) break; f += c[i].s14; e++; } d = a - e; return c[d].s4; } int main (void) { char *p = mmap (NULL, 131072, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); S1 wb, z, *w; S6 v; S7 x; S2 y; S5 vb; S4 s4; if (p == MAP_FAILED) return 0; if (munmap (p + 65536, 65536) < 0) return 0; memset (&wb, 0, sizeof (wb)); memset (&z, 0, sizeof (z)); memset (&v, 0, sizeof (v)); memset (&x, 0, sizeof (x)); memset (&y, 0, sizeof (y)); memset (&vb, 0, sizeof (vb)); memset (&s4, 0, sizeof (s4)); s4.s14 = 254; z.s3 = p + 65536 - 2 * sizeof (S4); w = &wb; v.s17 = &vb; vb.s16 = 2 * sizeof (S4); memcpy (z.s3, &s4, sizeof (s4)); memcpy (z.s3 + sizeof (s4), &s4, sizeof (s4)); test ((void *) 0, &v, &w, &x, &y, &z); return 0; }
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