Mercurial > projects > ldc
view runtime/internal/llvmdc/bitmanip.d @ 650:aa6a0b7968f7
Added test case for bug #100
Removed dubious check for not emitting static private global in other modules without access. This should be handled properly somewhere else, it's causing unresolved global errors for stuff that should work (in MiniD)
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
---|---|
date | Sun, 05 Oct 2008 17:28:15 +0200 |
parents | 44f08170f4ef |
children | d6b71647b622 |
line wrap: on
line source
/* * D phobos intrinsics for LLVMDC * * From GDC ... public domain! */ module llvmdc.bitmanip; // Check for the right compiler version(LLVMDC) { // OK } else { static assert(false, "This module is only valid for LLVMDC"); } int bsf(uint v) { uint m = 1; uint i; for (i = 0; i < 32; i++,m<<=1) { if (v&m) return i; } return i; // supposed to be undefined } int bsr(uint v) { uint m = 0x80000000; uint i; for (i = 32; i ; i--,m>>>=1) { if (v&m) return i-1; } return i; // supposed to be undefined } int bt(uint *p, uint bitnum) { return (p[bitnum / (uint.sizeof*8)] & (1<<(bitnum & ((uint.sizeof*8)-1)))) ? -1 : 0 ; } int btc(uint *p, uint bitnum) { uint * q = p + (bitnum / (uint.sizeof*8)); uint mask = 1 << (bitnum & ((uint.sizeof*8) - 1)); int result = *q & mask; *q ^= mask; return result ? -1 : 0; } int btr(uint *p, uint bitnum) { uint * q = p + (bitnum / (uint.sizeof*8)); uint mask = 1 << (bitnum & ((uint.sizeof*8) - 1)); int result = *q & mask; *q &= ~mask; return result ? -1 : 0; } int bts(uint *p, uint bitnum) { uint * q = p + (bitnum / (uint.sizeof*8)); uint mask = 1 << (bitnum & ((uint.sizeof*8) - 1)); int result = *q & mask; *q |= mask; return result ? -1 : 0; } pragma(intrinsic, "llvm.bswap.i32") uint bswap(uint val); ubyte inp(uint p) { return 0; } ushort inpw(uint p) { return 0; } uint inpl(uint p) { return 0; } ubyte outp(uint p, ubyte v) { return v; } ushort outpw(uint p, ushort v) { return v; } uint outpl(uint p, uint v) { return v; }