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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [sse2-mmx.c] - Rev 848
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/* { dg-do run } */ /* { dg-options "-O2 -msse2" } */ /* { dg-require-effective-target sse2 } */ #include "sse2-check.h" #include <mmintrin.h> #define N 4 unsigned long long a[N], b[N], result[N]; unsigned long long check[N] = { 0x101010101010100full, 0x1010101010101010ull, 0x1010101010101010ull, 0x1010101010101010ull }; __m64 unsigned_add3 (const __m64 * a, const __m64 * b, __m64 * result, unsigned int count) { __m64 _a, _b, one, sum, carry, onesCarry; unsigned int i; carry = _mm_setzero_si64 (); one = _mm_cmpeq_pi8 (carry, carry); one = _mm_sub_si64 (carry, one); for (i = 0; i < count; i++) { _a = a[i]; _b = b[i]; sum = _mm_add_si64 (_a, _b); sum = _mm_add_si64 (sum, carry); result[i] = sum; onesCarry = _mm_and_si64 (_mm_xor_si64 (_a, _b), carry); onesCarry = _mm_or_si64 (_mm_and_si64 (_a, _b), onesCarry); onesCarry = _mm_and_si64 (onesCarry, one); _a = _mm_srli_si64 (_a, 1); _b = _mm_srli_si64 (_b, 1); carry = _mm_add_si64 (_mm_add_si64 (_a, _b), onesCarry); carry = _mm_srli_si64 (carry, 63); } return carry; } void __attribute__((noinline)) sse2_test (void) { unsigned long long carry; int i; /* Really long numbers. */ a[3] = a[2] = a[1] = a[0] = 0xd3d3d3d3d3d3d3d3ull; b[3] = b[2] = b[1] = b[0] = 0x3c3c3c3c3c3c3c3cull; carry = (unsigned long long) unsigned_add3 ((__m64 *)a, (__m64 *)b, (__m64 *)result, N); _mm_empty (); if (carry != 1) abort (); for (i = 0; i < N; i++) if (result [i] != check[i]) abort (); }
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