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comparison gcc/testsuite/gcc.dg/vect/vect-widen-mult-1.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
1 /* { dg-require-effective-target vect_int } */
2
3 #include "tree-vect.h"
4
5 #define N 50
6
7 #ifndef SIGNEDNESS_1
8 #define SIGNEDNESS_1 unsigned
9 #define SIGNEDNESS_2 signed
10 #endif
11
12 void __attribute__ ((noipa))
13 f (SIGNEDNESS_1 short *restrict a, SIGNEDNESS_2 char *restrict b,
14 SIGNEDNESS_2 char *restrict c)
15 {
16 for (__INTPTR_TYPE__ i = 0; i < N; ++i)
17 {
18 int bv = (SIGNEDNESS_2 char) b[i];
19 int cv = (SIGNEDNESS_2 char) c[i];
20 a[i] = bv * cv;
21 }
22 }
23
24 #define BASE ((SIGNEDNESS_2 int) -1 < 0 ? -126 : 4)
25 #define OFFSET 20
26
27 int
28 main (void)
29 {
30 check_vect ();
31
32 SIGNEDNESS_1 short a[N];
33 SIGNEDNESS_2 char b[N], c[N];
34 for (int i = 0; i < N; ++i)
35 {
36 b[i] = BASE + i * 5;
37 c[i] = BASE + OFFSET + i * 4;
38 asm volatile ("" ::: "memory");
39 }
40 f (a, b, c);
41 for (int i = 0; i < N; ++i)
42 if (a[i] != (SIGNEDNESS_1 short) ((BASE + i * 5)
43 * (BASE + OFFSET + i * 4)))
44 __builtin_abort ();
45 }
46
47 /* { dg-final { scan-tree-dump "vect_recog_widen_mult_pattern: detected" "vect" } } */
48 /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" { target vect_widen_mult_qi_to_hi } } } */