Viewing file:  section-attr-3.c (1.29 KB) -rw-r--r--
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/* Checks for a bug where static data with a section attribute within a
function would stop the function being partitioned into hot and cold
blocks. */
/* { dg-require-effective-target freorder } */
/* { dg-options "-O2 -fno-profile-reorder-functions -freorder-blocks-and-partition -save-temps" } */
#ifdef FOR_AUTOFDO_TESTING
#define MAXITER 1000000
#else
#define MAXITER 10000
#endif
#define SIZE 10000
#define NOINLINE __attribute__((noinline)) __attribute__ ((noclone))
const char *sarr[SIZE];
#ifdef __APPLE__
const char *buf_hot __attribute__ ((section ("__DATA,__data")));
#else
const char *buf_hot __attribute__ ((section (".data")));
#endif
const char *buf_cold;
void foo (int path);
int
main (int argc, char *argv[])
{
int i;
buf_hot = "hello";
buf_cold = "world";
for (i = 0; i < MAXITER; i++)
foo (argc);
return 0;
}
void NOINLINE
foo (int path)
{
int i;
if (path)
{
for (i = 0; i < SIZE; i++)
sarr[i] = buf_hot;
}
else
{
for (i = 0; i < SIZE; i++)
sarr[i] = buf_cold;
}
}
/* { dg-final-use { scan-assembler "\.section\[\t \]*\.text\.unlikely\[\\n\\r\]+\[\t \]*\.size\[\t \]*foo\.cold" { target *-*-linux* *-*-gnu* } } } */
/* { dg-final-use { scan-assembler {.section[\t ]*__TEXT,__text_cold[^\n]*[\n\r]+_foo.cold:} { target *-*-darwin* } } } */
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