Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/gcc.dg/vect/vect-avg-1.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/vect/vect-avg-1.c Thu Oct 25 07:37:49 2018 +0900 @@ -0,0 +1,47 @@ +/* { dg-require-effective-target vect_int } */ + +#include "tree-vect.h" + +#define N 50 + +#ifndef SIGNEDNESS +#define SIGNEDNESS unsigned +#endif +#ifndef BIAS +#define BIAS 0 +#endif + +void __attribute__ ((noipa)) +f (SIGNEDNESS char *restrict a, SIGNEDNESS char *restrict b, + SIGNEDNESS char *restrict c) +{ + for (__INTPTR_TYPE__ i = 0; i < N; ++i) + a[i] = (b[i] + c[i] + BIAS) >> 1; +} + +#define BASE1 ((SIGNEDNESS int) -1 < 0 ? -126 : 4) +#define BASE2 ((SIGNEDNESS int) -1 < 0 ? -101 : 26) + +int +main (void) +{ + check_vect (); + + SIGNEDNESS char a[N], b[N], c[N]; + for (int i = 0; i < N; ++i) + { + b[i] = BASE1 + i * 5; + c[i] = BASE2 + i * 4; + asm volatile ("" ::: "memory"); + } + f (a, b, c); + for (int i = 0; i < N; ++i) + if (a[i] != ((BASE1 + BASE2 + i * 9 + BIAS) >> 1)) + __builtin_abort (); + return 0; +} + +/* { dg-final { scan-tree-dump "vect_recog_average_pattern: detected" "vect" } } */ +/* { dg-final { scan-tree-dump {\.AVG_FLOOR} "vect" { target vect_avg_qi } } } */ +/* { dg-final { scan-tree-dump-not {vector\([^\n]*short} "vect" { target vect_avg_qi } } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" { target vect_avg_qi } } } */