sljitNativeSPARC_32.c revision 1.1
1 /* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright 2009-2012 Zoltan Herczeg (hzmester (at) freemail.hu). All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without modification, are 7 * permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this list of 10 * conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 13 * of conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 static int load_immediate(struct sljit_compiler *compiler, int dst, sljit_w imm) 28 { 29 if (imm <= SIMM_MAX && imm >= SIMM_MIN) 30 return push_inst(compiler, OR | D(dst) | S1(0) | IMM(imm), DR(dst)); 31 32 FAIL_IF(push_inst(compiler, SETHI | D(dst) | ((imm >> 10) & 0x3fffff), DR(dst))); 33 return (imm & 0x3ff) ? push_inst(compiler, OR | D(dst) | S1(dst) | IMM_ARG | (imm & 0x3ff), DR(dst)) : SLJIT_SUCCESS; 34 } 35 36 #define ARG2(flags, src2) ((flags & SRC2_IMM) ? IMM(src2) : S2(src2)) 37 38 static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags, 39 int dst, int src1, sljit_w src2) 40 { 41 SLJIT_COMPILE_ASSERT(ICC_IS_SET == SET_FLAGS, icc_is_set_and_set_flags_must_be_the_same); 42 43 switch (op) { 44 case SLJIT_MOV: 45 case SLJIT_MOV_UI: 46 case SLJIT_MOV_SI: 47 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 48 if (dst != src2) 49 return push_inst(compiler, OR | D(dst) | S1(0) | S2(src2), DR(dst)); 50 return SLJIT_SUCCESS; 51 52 case SLJIT_MOV_UB: 53 case SLJIT_MOV_SB: 54 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 55 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { 56 if (op == SLJIT_MOV_UB) 57 return push_inst(compiler, AND | D(dst) | S1(src2) | IMM(0xff), DR(dst)); 58 FAIL_IF(push_inst(compiler, SLL | D(dst) | S1(src2) | IMM(24), DR(dst))); 59 return push_inst(compiler, SRA | D(dst) | S1(dst) | IMM(24), DR(dst)); 60 } 61 else if (dst != src2) 62 SLJIT_ASSERT_STOP(); 63 return SLJIT_SUCCESS; 64 65 case SLJIT_MOV_UH: 66 case SLJIT_MOV_SH: 67 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 68 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { 69 FAIL_IF(push_inst(compiler, SLL | D(dst) | S1(src2) | IMM(16), DR(dst))); 70 return push_inst(compiler, (op == SLJIT_MOV_SH ? SRA : SRL) | D(dst) | S1(dst) | IMM(16), DR(dst)); 71 } 72 else if (dst != src2) 73 SLJIT_ASSERT_STOP(); 74 return SLJIT_SUCCESS; 75 76 case SLJIT_NOT: 77 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 78 return push_inst(compiler, XNOR | (flags & SET_FLAGS) | D(dst) | S1(0) | S2(src2), DR(dst) | (flags & SET_FLAGS)); 79 80 case SLJIT_CLZ: 81 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 82 /* sparc 32 does not support SLJIT_KEEP_FLAGS. Not sure I can fix this. */ 83 FAIL_IF(push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(src2) | S2(0), SET_FLAGS)); 84 FAIL_IF(push_inst(compiler, OR | D(TMP_REG1) | S1(0) | S2(src2), DR(TMP_REG1))); 85 FAIL_IF(push_inst(compiler, BICC | DA(0x1) | (7 & DISP_MASK), UNMOVABLE_INS)); 86 FAIL_IF(push_inst(compiler, OR | (flags & SET_FLAGS) | D(dst) | S1(0) | IMM(32), UNMOVABLE_INS | (flags & SET_FLAGS))); 87 FAIL_IF(push_inst(compiler, OR | D(dst) | S1(0) | IMM(-1), DR(dst))); 88 89 /* Loop. */ 90 FAIL_IF(push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(TMP_REG1) | S2(0), SET_FLAGS)); 91 FAIL_IF(push_inst(compiler, SLL | D(TMP_REG1) | S1(TMP_REG1) | IMM(1), DR(TMP_REG1))); 92 FAIL_IF(push_inst(compiler, BICC | DA(0xe) | (-2 & DISP_MASK), UNMOVABLE_INS)); 93 return push_inst(compiler, ADD | (flags & SET_FLAGS) | D(dst) | S1(dst) | IMM(1), UNMOVABLE_INS | (flags & SET_FLAGS)); 94 95 case SLJIT_ADD: 96 return push_inst(compiler, ADD | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS)); 97 98 case SLJIT_ADDC: 99 return push_inst(compiler, ADDC | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS)); 100 101 case SLJIT_SUB: 102 return push_inst(compiler, SUB | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS)); 103 104 case SLJIT_SUBC: 105 return push_inst(compiler, SUBC | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS)); 106 107 case SLJIT_MUL: 108 FAIL_IF(push_inst(compiler, SMUL | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst))); 109 if (!(flags & SET_FLAGS)) 110 return SLJIT_SUCCESS; 111 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(dst) | IMM(31), DR(TMP_REG1))); 112 FAIL_IF(push_inst(compiler, RDY | D(TMP_REG4), DR(TMP_REG4))); 113 return push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(TMP_REG1) | S2(TMP_REG4), MOVABLE_INS | SET_FLAGS); 114 115 case SLJIT_AND: 116 return push_inst(compiler, AND | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS)); 117 118 case SLJIT_OR: 119 return push_inst(compiler, OR | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS)); 120 121 case SLJIT_XOR: 122 return push_inst(compiler, XOR | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS)); 123 124 case SLJIT_SHL: 125 FAIL_IF(push_inst(compiler, SLL | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst))); 126 return !(flags & SET_FLAGS) ? SLJIT_SUCCESS : push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(dst) | S2(0), SET_FLAGS); 127 128 case SLJIT_LSHR: 129 FAIL_IF(push_inst(compiler, SRL | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst))); 130 return !(flags & SET_FLAGS) ? SLJIT_SUCCESS : push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(dst) | S2(0), SET_FLAGS); 131 132 case SLJIT_ASHR: 133 FAIL_IF(push_inst(compiler, SRA | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst))); 134 return !(flags & SET_FLAGS) ? SLJIT_SUCCESS : push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(dst) | S2(0), SET_FLAGS); 135 } 136 137 SLJIT_ASSERT_STOP(); 138 return SLJIT_SUCCESS; 139 } 140 141 static SLJIT_INLINE int emit_const(struct sljit_compiler *compiler, int dst, sljit_w init_value) 142 { 143 FAIL_IF(push_inst(compiler, SETHI | D(dst) | ((init_value >> 10) & 0x3fffff), DR(dst))); 144 return push_inst(compiler, OR | D(dst) | S1(dst) | IMM_ARG | (init_value & 0x3ff), DR(dst)); 145 } 146 147 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr) 148 { 149 sljit_ins *inst = (sljit_ins*)addr; 150 151 inst[0] = (inst[0] & 0xffc00000) | ((new_addr >> 10) & 0x3fffff); 152 inst[1] = (inst[1] & 0xfffffc00) | (new_addr & 0x3ff); 153 SLJIT_CACHE_FLUSH(inst, inst + 2); 154 } 155 156 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant) 157 { 158 sljit_ins *inst = (sljit_ins*)addr; 159 160 inst[0] = (inst[0] & 0xffc00000) | ((new_constant >> 10) & 0x3fffff); 161 inst[1] = (inst[1] & 0xfffffc00) | (new_constant & 0x3ff); 162 SLJIT_CACHE_FLUSH(inst, inst + 2); 163 } 164
Indexes created Mon Oct 20 16:09:52 GMT 2025