Mercurial > hg > CbC > CbC_gcc

comparison gcc/testsuite/gcc.dg/uninit-22.c @ 111:04ced10e8804

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children
comparison
equal deleted inserted replaced
68:561a7518be6b 111:04ced10e8804
1 /* { dg-do compile } */
2 /* { dg-options "-O3 -Wuninitialized --param vect-max-version-for-alias-checks=20" } */
3
4 #include <stdint.h>
5
6 #define A1 2896 /* (1/sqrt(2))<<12 */
7 #define A2 2217
8 #define A3 3784
9 #define A4 -5352
10
11 #define IDCT_TRANSFORM(dest,s0,s1,s2,s3,s4,s5,s6,s7,d0,d1,d2,d3,d4,d5,d6,d7,munge,src) {\
12 const int a0 = (src)[s0] + (src)[s4]; \
13 const int a1 = (src)[s0] - (src)[s4]; \
14 const int a2 = (src)[s2] + (src)[s6]; \
15 const int a3 = (A1*((src)[s2] - (src)[s6])) >> 11; \
16 const int a4 = (src)[s5] + (src)[s3]; \
17 const int a5 = (src)[s5] - (src)[s3]; \
18 const int a6 = (src)[s1] + (src)[s7]; \
19 const int a7 = (src)[s1] - (src)[s7]; \
20 const int b0 = a4 + a6; \
21 const int b1 = (A3*(a5 + a7)) >> 11; \
22 const int b2 = ((A4*a5) >> 11) - b0 + b1; \
23 const int b3 = (A1*(a6 - a4) >> 11) - b2; \
24 const int b4 = ((A2*a7) >> 11) + b3 - b1; \
25 (dest)[d0] = munge(a0+a2 +b0); \
26 (dest)[d1] = munge(a1+a3-a2+b2); \
27 (dest)[d2] = munge(a1-a3+a2+b3); \
28 (dest)[d3] = munge(a0-a2 -b4); \
29 (dest)[d4] = munge(a0-a2 +b4); \
30 (dest)[d5] = munge(a1-a3+a2-b3); \
31 (dest)[d6] = munge(a1+a3-a2-b2); \
32 (dest)[d7] = munge(a0+a2 -b0); \
33 }
34
35 #define MUNGE_NONE(x) (x)
36 #define IDCT_COL(dest,src) IDCT_TRANSFORM(dest,0,8,16,24,32,40,48,56,0,8,16,24,32,40,48,56,MUNGE_NONE,src)
37
38 #define MUNGE_ROW(x) (((x) + 0x7F)>>8)
39 #define IDCT_ROW(dest,src) IDCT_TRANSFORM(dest,0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7,MUNGE_ROW,src)
40
41 static inline void bink_idct_col(int *dest, const int32_t *src)
42 {
43 if ((src[8]|src[16]|src[24]|src[32]|src[40]|src[48]|src[56])==0) {
44 dest[0] =
45 dest[8] =
46 dest[16] =
47 dest[24] =
48 dest[32] =
49 dest[40] =
50 dest[48] =
51 dest[56] = src[0];
52 } else {
53 IDCT_COL(dest, src);
54 }
55 }
56
57 int bink_idct_put_c(uint8_t *dest, int linesize, int32_t *block)
58 {
59 int i;
60 int temp[64];
61 for (i = 0; i < 8; i++)
62 bink_idct_col(&temp[i], &block[i]);
63 for (i = 0; i < 8; i++) {
64 IDCT_ROW( (&dest[i*linesize]), (&temp[8*i]) );
65 }
66
67 return 0;
68 }
69