Viewing file:  pr101596-3.c (2.06 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-require-effective-target power10_hw } */
/* { dg-options "-mdejagnu-cpu=power10 -O2 -ftree-vectorize -fno-vect-cost-model" } */
/* Verify the execution goes well with shift count either 32 or 48. */
#define N 128
typedef signed int si;
typedef signed short sh;
typedef signed long long sll;
typedef unsigned int ui;
typedef unsigned short uh;
typedef unsigned long long ull;
si si_a[N], si_b[N];
ui ui_a[N], ui_b[N];
sh sh_c[N];
uh uh_c[N];
#define TEST(NTYPE, TYPE, WTYPE, CNT) \
void __attribute__ ((noipa)) test_##TYPE##CNT () \
{ \
for (int i = 0; i < N; i++) \
NTYPE##_c[i] = ((WTYPE) TYPE##_a[i] * (WTYPE) TYPE##_b[i]) >> CNT; \
} \
\
void __attribute__ ((noipa, optimize ("O1"))) check_##TYPE##CNT () \
{ \
test_##TYPE##CNT (); \
for (int i = 0; i < N; i++) \
{ \
NTYPE exp = ((WTYPE) TYPE##_a[i] * (WTYPE) TYPE##_b[i]) >> CNT; \
if (NTYPE##_c[i] != exp) \
__builtin_abort (); \
} \
}
TEST (sh, si, sll, 32)
TEST (sh, si, sll, 48)
TEST (uh, ui, ull, 32)
TEST (uh, ui, ull, 48)
int
main ()
{
for (int i = 0; i < N; i++)
{
ui_a[i] = si_a[i] = 0x12345678ULL + 0x1000ULL * (i * 3 - 1);
ui_b[i] = si_b[i] = 0x87654321ULL - 0x500000ULL * (i * 5 + 1);
}
check_si32 ();
check_si48 ();
check_ui32 ();
check_ui48 ();
}
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