URL
https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk
Subversion Repositories openrisc_me
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [20030225-1.c] - Rev 305
Go to most recent revision | Compare with Previous | Blame | View Log
/* PR target/9732 This testcase segfaulted on PPC because PIC_OFFSET_TABLE_REGNUM was no fixed register. Distilled from the xvid sources by Guillaume Morin <guillaume@morinfr.org> and Benjamin Herrenschmidt <benh@kernel.crashing.org>. */ /* { dg-do run { target fpic } } */ /* { dg-options "-O2 -fPIC" } */ extern void exit (int); #define W1 2841 /* 2048*sqrt(2)*cos(1*pi/16) */ #define W2 2676 /* 2048*sqrt(2)*cos(2*pi/16) */ #define W3 2408 /* 2048*sqrt(2)*cos(3*pi/16) */ #define W5 1609 /* 2048*sqrt(2)*cos(5*pi/16) */ #define W6 1108 /* 2048*sqrt(2)*cos(6*pi/16) */ #define W7 565 /* 2048*sqrt(2)*cos(7*pi/16) */ /* private data */ static short iclip[1024]; /* clipping table */ static short *iclp; void idct_int32(short *const block) { static short *blk; static long i; static long X0, X1, X2, X3, X4, X5, X6, X7, X8; for (i = 0; i < 8; i++) /* idct columns */ { blk = block + i; /* shortcut */ if (! ((X1 = (blk[8 * 4] << 8)) | (X2 = blk[8 * 6]) | (X3 = blk[8 * 2]) | (X4 = blk[8 * 1]) | (X5 = blk[8 * 7]) | (X6 = blk[8 * 5]) | (X7 = blk[8 * 3]))) { blk[8 * 0] = blk[8 * 1] = blk[8 * 2] = blk[8 * 3] = blk[8 * 4] = blk[8 * 5] = blk[8 * 6] = blk[8 * 7] = iclp[(blk[8 * 0] + 32) >> 6]; continue; } X0 = (blk[8 * 0] << 8) + 8192; /* first stage */ X8 = W7 * (X4 + X5) + 4; X4 = (X8 + (W1 - W7) * X4) >> 3; X5 = (X8 - (W1 + W7) * X5) >> 3; X8 = W3 * (X6 + X7) + 4; X6 = (X8 - (W3 - W5) * X6) >> 3; X7 = (X8 - (W3 + W5) * X7) >> 3; /* second stage */ X8 = X0 + X1; X0 -= X1; X1 = W6 * (X3 + X2) + 4; X2 = (X1 - (W2 + W6) * X2) >> 3; X3 = (X1 + (W2 - W6) * X3) >> 3; X1 = X4 + X6; X4 -= X6; X6 = X5 + X7; X5 -= X7; /* third stage */ X7 = X8 + X3; X8 -= X3; X3 = X0 + X2; X0 -= X2; X2 = (181 * (X4 + X5) + 128) >> 8; X4 = (181 * (X4 - X5) + 128) >> 8; /* fourth stage */ blk[8 * 0] = iclp[(X7 + X1) >> 14]; blk[8 * 1] = iclp[(X3 + X2) >> 14]; blk[8 * 2] = iclp[(X0 + X4) >> 14]; blk[8 * 3] = iclp[(X8 + X6) >> 14]; blk[8 * 4] = iclp[(X8 - X6) >> 14]; blk[8 * 5] = iclp[(X0 - X4) >> 14]; blk[8 * 6] = iclp[(X3 - X2) >> 14]; blk[8 * 7] = iclp[(X7 - X1) >> 14]; } } /* end function idct_int32(block) */ int main(void) { int i; unsigned short tab[64]; for (i = 0 ; i < 64 ; ++i) { tab[i] = (1+(int) (65535)*8000/(2147483647+1.0)); } iclp = iclip + 512; for (i = -512; i < 512; i++) iclp[i] = (i < -256) ? -256 : ((i > 255) ? 255 : i); idct_int32((short *) tab); exit (0); }
Go to most recent revision | Compare with Previous | Blame | View Log