Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/gcc.dg/var-expand3.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/var-expand3.c Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,57 @@ +/* { dg-do run { target { powerpc*-*-* && vmx_hw } } }} */ +/* { dg-options "-O2 -funroll-loops -ffast-math -fvariable-expansion-in-unroller -maltivec -fdump-rtl-loop2_unroll" } */ + +#include "altivec.h" +extern void abort (void); +extern void exit (int); + +#define N 256 + +float in1[N] __attribute__ ((__aligned__ (16))) = {0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57}; +float in2[N] __attribute__ ((__aligned__ (16))) = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19}; + +float +foo (int n) +{ + unsigned i; + vector float vp1, vp2, vp3, vaccum, vzero, vtmp; + float accum = 1.0; + + vzero = (vector float){0, 0, 0, 0}; + + vaccum = vzero; + + for (i = 0; i < n; i++) + { + vp1 = vec_ld (i * 16, in1); + vp2 = vec_ld (i * 16, in2); + + vaccum = vec_madd (vp1, vp2, vaccum); + + } + vtmp = vec_sld (vaccum, vaccum, 8); + vp1 = vec_add (vaccum, vtmp); + vtmp = vec_sld (vp1, vp1, 4); + vp2 = vec_add (vp1, vtmp); + + vec_ste (vp2, 0, &accum); + if (accum != 1518) + return 0; + + return accum; +} + +int +main (void) +{ + if (!foo (3)) + abort (); + + exit (0); +} + +/* { dg-final { scan-rtl-dump "Expanding Accumulator" "loop2_unroll" } } */ + + + +