137a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan/* ===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------=== 237a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan * 337a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan * The LLVM Compiler Infrastructure 437a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan * 59ad441ffec97db647fee3725b3424284fb913e14Howard Hinnant * This file is dual licensed under the MIT and the University of Illinois Open 69ad441ffec97db647fee3725b3424284fb913e14Howard Hinnant * Source Licenses. See LICENSE.TXT for details. 737a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan * 837a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan * ===----------------------------------------------------------------------=== 91c5f89b1dd741135a4007ab577723d422f421eecAnton Korobeynikov * 1037a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan * This file implements __cmpdi2 for the compiler_rt library. 1137a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan * 1237a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan * ===----------------------------------------------------------------------=== 1337a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan */ 14b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar 15b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar#include "int_lib.h" 16b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar 171c5f89b1dd741135a4007ab577723d422f421eecAnton Korobeynikov/* Returns: if (a < b) returns 0 1837a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan* if (a == b) returns 1 1937a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan* if (a > b) returns 2 2037a6a455466e5b197311771a777ab241e471ed8aEdward O'Callaghan*/ 21b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar 221c5f89b1dd741135a4007ab577723d422f421eecAnton KorobeynikovCOMPILER_RT_ABI si_int 23b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar__cmpdi2(di_int a, di_int b) 24b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar{ 25b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar dwords x; 26b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar x.all = a; 27b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar dwords y; 28b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar y.all = b; 298bf1e094893cb24796137b47ee0d46d18d299996Edward O'Callaghan if (x.s.high < y.s.high) 30b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar return 0; 318bf1e094893cb24796137b47ee0d46d18d299996Edward O'Callaghan if (x.s.high > y.s.high) 32b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar return 2; 338bf1e094893cb24796137b47ee0d46d18d299996Edward O'Callaghan if (x.s.low < y.s.low) 34b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar return 0; 358bf1e094893cb24796137b47ee0d46d18d299996Edward O'Callaghan if (x.s.low > y.s.low) 36b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar return 2; 37b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar return 1; 38b3a6901e66f55b35aa9e01bcb24134e6a65ea004Daniel Dunbar} 394785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover 404785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover#ifdef __ARM_EABI__ 414785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover/* Returns: if (a < b) returns -1 424785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover* if (a == b) returns 0 434785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover* if (a > b) returns 1 444785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover*/ 454785a776d09fb36bb2b162c3be40cd7ca017fce0Tim NorthoverCOMPILER_RT_ABI si_int 464785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover__aeabi_lcmp(di_int a, di_int b) 474785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover{ 484785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover return __cmpdi2(a, b) - 1; 494785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover} 504785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover#endif 514785a776d09fb36bb2b162c3be40cd7ca017fce0Tim Northover 52