diff options
Diffstat (limited to 'src/sljit/sljitNativeARM_T2_32.c')
| -rw-r--r-- | src/sljit/sljitNativeARM_T2_32.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/src/sljit/sljitNativeARM_T2_32.c b/src/sljit/sljitNativeARM_T2_32.c index 4624882..e35dbe9 100644 --- a/src/sljit/sljitNativeARM_T2_32.c +++ b/src/sljit/sljitNativeARM_T2_32.c @@ -610,6 +610,7 @@ static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, s Although some clever things could be done here, "NOT IMM" does not worth the efforts. */ break; case SLJIT_ADD: + compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD_SUB; nimm = -(sljit_sw)imm; if (IS_2_LO_REGS(reg, dst)) { if (imm <= 0x7) @@ -643,6 +644,7 @@ static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, s break; case SLJIT_SUB: /* SUB operation can be replaced by ADD because of the negative carry flag. */ + compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD_SUB; if (flags & ARG1_IMM) { if (imm == 0 && IS_2_LO_REGS(reg, dst)) return push_inst16(compiler, RSBSI | RD3(dst) | RN3(reg)); @@ -801,6 +803,7 @@ static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, s FAIL_IF(push_inst32(compiler, CLZ | RN4(arg2) | RD4(dst) | RM4(arg2))); return SLJIT_SUCCESS; case SLJIT_ADD: + compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD_SUB; if (IS_3_LO_REGS(dst, arg1, arg2)) return push_inst16(compiler, ADDS | RD3(dst) | RN3(arg1) | RM3(arg2)); if (dst == arg1 && !(flags & SET_FLAGS)) @@ -811,6 +814,7 @@ static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, s return push_inst16(compiler, ADCS | RD3(dst) | RN3(arg2)); return push_inst32(compiler, ADC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2)); case SLJIT_SUB: + compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD_SUB; if (flags & UNUSED_RETURN) { if (IS_2_LO_REGS(arg1, arg2)) return push_inst16(compiler, CMP | RD3(arg1) | RN3(arg2)); @@ -824,6 +828,7 @@ static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, s return push_inst16(compiler, SBCS | RD3(dst) | RN3(arg2)); return push_inst32(compiler, SBC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2)); case SLJIT_MUL: + compiler->status_flags_state = 0; if (!(flags & SET_FLAGS)) return push_inst32(compiler, MUL | RD4(dst) | RN4(arg1) | RM4(arg2)); SLJIT_ASSERT(dst != TMP_REG2); @@ -1760,16 +1765,14 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler * /* Conditional instructions */ /* --------------------------------------------------------------------- */ -static sljit_uw get_cc(sljit_s32 type) +static sljit_uw get_cc(struct sljit_compiler *compiler, sljit_s32 type) { switch (type) { case SLJIT_EQUAL: - case SLJIT_MUL_NOT_OVERFLOW: case SLJIT_EQUAL_F64: return 0x0; case SLJIT_NOT_EQUAL: - case SLJIT_MUL_OVERFLOW: case SLJIT_NOT_EQUAL_F64: return 0x1; @@ -1802,10 +1805,16 @@ static sljit_uw get_cc(sljit_s32 type) return 0xd; case SLJIT_OVERFLOW: + if (!(compiler->status_flags_state & SLJIT_CURRENT_FLAGS_ADD_SUB)) + return 0x1; + case SLJIT_UNORDERED_F64: return 0x6; case SLJIT_NOT_OVERFLOW: + if (!(compiler->status_flags_state & SLJIT_CURRENT_FLAGS_ADD_SUB)) + return 0x0; + case SLJIT_ORDERED_F64: return 0x7; @@ -1847,7 +1856,7 @@ SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compile PTR_FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0)); if (type < SLJIT_JUMP) { jump->flags |= IS_COND; - cc = get_cc(type); + cc = get_cc(compiler, type); jump->flags |= cc << 8; PTR_FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8)); } @@ -2177,7 +2186,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *co ADJUST_LOCAL_OFFSET(dst, dstw); op = GET_OPCODE(op); - cc = get_cc(type & 0xff); + cc = get_cc(compiler, type & 0xff); dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1; if (op < SLJIT_ADD) { @@ -2229,7 +2238,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compil dst_reg &= ~SLJIT_I32_OP; - cc = get_cc(type & 0xff); + cc = get_cc(compiler, type & 0xff); if (!(src & SLJIT_IMM)) { FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8)); |