Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/pr57134.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do compile } */ /* { dg-require-effective-target stdint_types } */ /* { dg-options "-O2" } */ /* { dg-options "-O2 -mstrict-align" { target { powerpc*-*-linux* powerpc*-*-elf* } } } */ #include <stdint.h> typedef struct { int64_t counter; } atomic64_t; struct buffer_page { void *a, *b; atomic64_t entries; }; static __inline__ __attribute__((always_inline)) int64_t atomic64_read(const atomic64_t *v) { int64_t t; __asm__ __volatile__("" : "=r"(t) : "m"(v->counter)); return t; } int rb_remove_pages(void *p) { struct buffer_page *blah = (void *)((intptr_t) p & -4); return atomic64_read(&blah->entries); }