Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/pr57154.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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/* { dg-do compile } */ /* { dg-options "-O2 -fschedule-insns" } */ /* { dg-require-effective-target scheduling } */ #define PF_FROZEN 0x00010000 #define likely(x) __builtin_expect(!!(x), 1) struct cur { unsigned long flags; }; struct cur *cur; unsigned long freeze_cnt; extern int foo(void *); extern int slow_path(void *); static inline int freezing(void *p) { if (likely(!foo(&freeze_cnt))) return 0; return slow_path(p); } extern int blah(void); int testcase(int check_kthr_stop) { int was_frozen = 0; for (;;) { if (!freezing(cur) || (check_kthr_stop && blah())) cur->flags &= ~PF_FROZEN; if (!(cur->flags & PF_FROZEN)) break; was_frozen = 1; } return was_frozen; }