1*0a6a1f1dSLionel Sambuc /* ===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------=== 2*0a6a1f1dSLionel Sambuc * 3*0a6a1f1dSLionel Sambuc * The LLVM Compiler Infrastructure 4*0a6a1f1dSLionel Sambuc * 5*0a6a1f1dSLionel Sambuc * This file is dual licensed under the MIT and the University of Illinois Open 6*0a6a1f1dSLionel Sambuc * Source Licenses. See LICENSE.TXT for details. 7*0a6a1f1dSLionel Sambuc * 8*0a6a1f1dSLionel Sambuc * ===----------------------------------------------------------------------=== 9*0a6a1f1dSLionel Sambuc * 10*0a6a1f1dSLionel Sambuc * This file implements __cmpdi2 for the compiler_rt library. 11*0a6a1f1dSLionel Sambuc * 12*0a6a1f1dSLionel Sambuc * ===----------------------------------------------------------------------=== 13*0a6a1f1dSLionel Sambuc */ 14*0a6a1f1dSLionel Sambuc 15*0a6a1f1dSLionel Sambuc #include "int_lib.h" 16*0a6a1f1dSLionel Sambuc 17*0a6a1f1dSLionel Sambuc /* Returns: if (a < b) returns 0 18*0a6a1f1dSLionel Sambuc * if (a == b) returns 1 19*0a6a1f1dSLionel Sambuc * if (a > b) returns 2 20*0a6a1f1dSLionel Sambuc */ 21*0a6a1f1dSLionel Sambuc 22*0a6a1f1dSLionel Sambuc COMPILER_RT_ABI si_int __cmpdi2(di_int a,di_int b)23*0a6a1f1dSLionel Sambuc__cmpdi2(di_int a, di_int b) 24*0a6a1f1dSLionel Sambuc { 25*0a6a1f1dSLionel Sambuc dwords x; 26*0a6a1f1dSLionel Sambuc x.all = a; 27*0a6a1f1dSLionel Sambuc dwords y; 28*0a6a1f1dSLionel Sambuc y.all = b; 29*0a6a1f1dSLionel Sambuc if (x.s.high < y.s.high) 30*0a6a1f1dSLionel Sambuc return 0; 31*0a6a1f1dSLionel Sambuc if (x.s.high > y.s.high) 32*0a6a1f1dSLionel Sambuc return 2; 33*0a6a1f1dSLionel Sambuc if (x.s.low < y.s.low) 34*0a6a1f1dSLionel Sambuc return 0; 35*0a6a1f1dSLionel Sambuc if (x.s.low > y.s.low) 36*0a6a1f1dSLionel Sambuc return 2; 37*0a6a1f1dSLionel Sambuc return 1; 38*0a6a1f1dSLionel Sambuc } 39*0a6a1f1dSLionel Sambuc 40*0a6a1f1dSLionel Sambuc #ifdef __ARM_EABI__ 41*0a6a1f1dSLionel Sambuc /* Returns: if (a < b) returns -1 42*0a6a1f1dSLionel Sambuc * if (a == b) returns 0 43*0a6a1f1dSLionel Sambuc * if (a > b) returns 1 44*0a6a1f1dSLionel Sambuc */ 45*0a6a1f1dSLionel Sambuc COMPILER_RT_ABI si_int __aeabi_lcmp(di_int a,di_int b)46*0a6a1f1dSLionel Sambuc__aeabi_lcmp(di_int a, di_int b) 47*0a6a1f1dSLionel Sambuc { 48*0a6a1f1dSLionel Sambuc return __cmpdi2(a, b) - 1; 49*0a6a1f1dSLionel Sambuc } 50*0a6a1f1dSLionel Sambuc #endif 51*0a6a1f1dSLionel Sambuc 52