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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [mips/] [mips-3d-9.c] - Rev 321
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/* { dg-do run } */ /* { dg-options "-O2 -mips3d" } */ /* Matrix Multiplications */ #include <stdlib.h> #include <stdio.h> typedef float v2sf __attribute__((vector_size(8))); float a[4] = {1.1, 2.2, 3.3, 4.4}; float b[4][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 16}}; float c[4]; /* Result for matrix_multiply1() */ float d[4]; /* Result for matrix_multiply2() */ float e[4]; /* Result for matrix_multiply3() */ float f[4]; /* Result for matrix_multiply4() */ void matrix_multiply1(); NOMIPS16 void matrix_multiply2(); NOMIPS16 void matrix_multiply3(); NOMIPS16 void matrix_multiply4(); int main () { int i; /* Version 1. Use float calculations */ matrix_multiply1(); /* Version 2. Use paired-single instructions inside the inner loop*/ matrix_multiply2(); for (i = 0; i < 4; i++) if (d[i] != c[i]) abort(); /* Version 3. Use paired-single instructions and unroll the inner loop */ matrix_multiply3(); for (i = 0; i < 4; i++) if (e[i] != c[i]) abort(); /* Version 4. Use paired-single instructions and unroll all loops */ matrix_multiply4(); for (i = 0; i < 4; i++) if (f[i] != c[i]) abort(); printf ("Test Passes\n"); exit (0); } void matrix_multiply1() { int i, j; for (i = 0; i < 4; i++) { c[i] = 0.0; for (j = 0; j < 4; j ++) c[i] += a[j] * b[j][i]; } } NOMIPS16 void matrix_multiply2() { int i, j; v2sf m1, m2; v2sf result, temp; for (i = 0; i < 4; i++) { result = (v2sf) {0.0, 0.0}; for (j = 0; j < 4; j+=2) { /* Load two float values into m1 */ m1 = (v2sf) {a[j], a[j+1]}; m2 = (v2sf) {b[j][i], b[j+1][i]}; /* Multiply and add */ result += m1 * m2; } /* Reduction add at the end */ temp = __builtin_mips_addr_ps (result, result); d[i] = __builtin_mips_cvt_s_pl (temp); } } NOMIPS16 void matrix_multiply3() { int i; v2sf m1, m2, n1, n2; v2sf result, temp; m1 = (v2sf) {a[0], a[1]}; m2 = (v2sf) {a[2], a[3]}; for (i = 0; i < 4; i++) { n1 = (v2sf) {b[0][i], b[1][i]}; n2 = (v2sf) {b[2][i], b[3][i]}; /* Multiply and add */ result = m1 * n1 + m2 * n2; /* Reduction add at the end */ temp = __builtin_mips_addr_ps (result, result); e[i] = __builtin_mips_cvt_s_pl (temp); } } NOMIPS16 void matrix_multiply4() { v2sf m1, m2; v2sf n1, n2, n3, n4, n5, n6, n7, n8; v2sf temp1, temp2, temp3, temp4; v2sf result1, result2; /* Load a[0] a[1] values into m1 Load a[2] a[3] values into m2 */ m1 = (v2sf) {a[0], a[1]}; m2 = (v2sf) {a[2], a[3]}; /* Load b[0][0] b[1][0] values into n1 Load b[2][0] b[3][0] values into n2 Load b[0][1] b[1][1] values into n3 Load b[2][1] b[3][1] values into n4 Load b[0][2] b[1][2] values into n5 Load b[2][2] b[3][2] values into n6 Load b[0][3] b[1][3] values into n7 Load b[2][3] b[3][3] values into n8 */ n1 = (v2sf) {b[0][0], b[1][0]}; n2 = (v2sf) {b[2][0], b[3][0]}; n3 = (v2sf) {b[0][1], b[1][1]}; n4 = (v2sf) {b[2][1], b[3][1]}; n5 = (v2sf) {b[0][2], b[1][2]}; n6 = (v2sf) {b[2][2], b[3][2]}; n7 = (v2sf) {b[0][3], b[1][3]}; n8 = (v2sf) {b[2][3], b[3][3]}; temp1 = m1 * n1 + m2 * n2; temp2 = m1 * n3 + m2 * n4; temp3 = m1 * n5 + m2 * n6; temp4 = m1 * n7 + m2 * n8; result1 = __builtin_mips_addr_ps (temp1, temp2); result2 = __builtin_mips_addr_ps (temp3, temp4); f[0] = __builtin_mips_cvt_s_pu (result1); f[1] = __builtin_mips_cvt_s_pl (result1); f[2] = __builtin_mips_cvt_s_pu (result2); f[3] = __builtin_mips_cvt_s_pl (result2); }