Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/vect/pr87914.cc @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | |
children |
line wrap: on
line source
// { dg-additional-options "-fopenmp-simd" } // { dg-additional-options "-mavx2" { target { avx2_runtime } } } extern "C" int memcmp(const void *s1, const void *s2, __SIZE_TYPE__ n); extern "C" void abort(void); template <typename T> T reverseBits(T x) { unsigned int s = sizeof(x) * 8; T mask = ~T(0); while ((s >>= 1) > 0) { mask ^= (mask << s); x = ((x >> s) & mask) | ((x << s) & ~mask); // unsupported use in stmt } return x; } void __attribute__((noinline,noipa)) test_reverseBits(unsigned* x) { #pragma omp simd aligned(x:32) for (int i = 0; i < 16; ++i) x[i] = reverseBits(x[i]); // couldn't vectorize loop } int main() { unsigned arr[16] __attribute__((aligned(32))) = { 0x01020304, 0x05060708, 0x0a0b0c0d, 0x0e0f1011, 0x11121314, 0x45065708, 0xfa0b3c0du, 0x0e0f1211, 0x21222324, 0x55066708, 0xfa0b2c0du, 0x1e0f1011, 0x31323334, 0x65067708, 0xfa0b5c0du, 0x0e3f1011 }; unsigned arr2[16] = { 0x20c04080, 0x10e060a0, 0xb030d050, 0x8808f070u, 0x28c84888, 0x10ea60a2, 0xb03cd05f, 0x8848f070u, 0x24c44484, 0x10e660aa, 0xb034d05f, 0x8808f078u, 0x2ccc4c8c, 0x10ee60a6, 0xb03ad05f, 0x8808fc70u }; test_reverseBits (arr); if (memcmp (arr, arr2, sizeof (arr)) != 0) abort (); return 0; } // { dg-final { scan-tree-dump "OUTER LOOP VECTORIZED" "vect" { target { vect_var_shift && vect_int } } } }