view gcc/testsuite/gcc.dg/tree-ssa/asm-3.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
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/* PR 17739 */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */

#ifdef __hppa__
#define REGISTER "1"
#else
#ifdef __moxie__
#define REGISTER "8"
#else
#define REGISTER "0"
#endif
#endif

void foo (int);
void bar (int);

static inline int source(void)
{
  register int hardreg __asm__(REGISTER);
  asm("" : "=r"(hardreg));
  return hardreg;
}
                                                                                
void test(void)
{
  int t = source();
  foo(t);
  bar(t);
}

/* Hardreg should appear exactly 3 times -- declaration, asm stmt,
   and copy out.  */
/* { dg-final { scan-tree-dump-times "hardreg" 3 "optimized" } } */

/* In particular, hardreg should *not* appear in the call to bar.  */
/* { dg-final { scan-tree-dump-times "bar \[(\]\[^\n\r\]*_.\[)\]" 1 "optimized" } } */