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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb.c b/gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb.c new file mode 100644 index 000000000..3c1a362c0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb.c @@ -0,0 +1,78 @@ +/* { dg-require-effective-target vect_float } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 40 +#define M 64 +float in[N+M]; +float coeff[M]; +float out[N]; +float fir_out[N]; + +/* Vectorized. Fixed misaligment in the inner-loop. */ +__attribute__ ((noinline)) +void foo (){ + int i,j,k; + float diff; + + for (i = 0; i < N; i++) { + out[i] = 0; + } + + for (k = 0; k < 4; k++) { + for (i = 0; i < N; i++) { + diff = 0; + j = k; + + do { + diff += in[j+i]*coeff[j]; + j+=4; + } while (j < M); + + out[i] += diff; + } + } + +} + +/* Vectorized. Changing misalignment in the inner-loop. */ +__attribute__ ((noinline)) +void fir (){ + int i,j,k; + float diff; + + for (i = 0; i < N; i++) { + diff = 0; + for (j = 0; j < M; j++) { + diff += in[j+i]*coeff[j]; + } + fir_out[i] = diff; + } +} + + +int main (void) +{ + check_vect (); + int i, j; + float diff; + + for (i = 0; i < M; i++) + coeff[i] = i; + for (i = 0; i < N+M; i++) + in[i] = i; + + foo (); + fir (); + + for (i = 0; i < N; i++) { + if (out[i] != fir_out[i]) + abort (); + } + + return 0; +} + +/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 2 "vect" { xfail vect_no_align } } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ |