diff options
Diffstat (limited to 'compiler/utils/mips/assembler_mips.cc')
-rw-r--r-- | compiler/utils/mips/assembler_mips.cc | 74 |
1 files changed, 62 insertions, 12 deletions
diff --git a/compiler/utils/mips/assembler_mips.cc b/compiler/utils/mips/assembler_mips.cc index afca8adcbb..0dc307c9ac 100644 --- a/compiler/utils/mips/assembler_mips.cc +++ b/compiler/utils/mips/assembler_mips.cc @@ -400,6 +400,20 @@ void MipsAssembler::Srav(Register rd, Register rt, Register rs) { EmitR(0, rs, rt, rd, 0, 0x07); } +void MipsAssembler::Ext(Register rd, Register rt, int pos, int size) { + CHECK(IsUint<5>(pos)) << pos; + CHECK(0 < size && size <= 32) << size; + CHECK(0 < pos + size && pos + size <= 32) << pos << " + " << size; + EmitR(0x1f, rt, rd, static_cast<Register>(size - 1), pos, 0x00); +} + +void MipsAssembler::Ins(Register rd, Register rt, int pos, int size) { + CHECK(IsUint<5>(pos)) << pos; + CHECK(0 < size && size <= 32) << size; + CHECK(0 < pos + size && pos + size <= 32) << pos << " + " << size; + EmitR(0x1f, rt, rd, static_cast<Register>(pos + size - 1), pos, 0x04); +} + void MipsAssembler::Lb(Register rt, Register rs, uint16_t imm16) { EmitI(0x20, rs, rt, imm16); } @@ -1121,8 +1135,14 @@ void MipsAssembler::LoadConst32(Register rd, int32_t value) { } void MipsAssembler::LoadConst64(Register reg_hi, Register reg_lo, int64_t value) { - LoadConst32(reg_lo, Low32Bits(value)); - LoadConst32(reg_hi, High32Bits(value)); + uint32_t low = Low32Bits(value); + uint32_t high = High32Bits(value); + LoadConst32(reg_lo, low); + if (high != low) { + LoadConst32(reg_hi, high); + } else { + Move(reg_hi, reg_lo); + } } void MipsAssembler::StoreConst32ToOffset(int32_t value, @@ -1136,7 +1156,11 @@ void MipsAssembler::StoreConst32ToOffset(int32_t value, base = AT; offset = 0; } - LoadConst32(temp, value); + if (value == 0) { + temp = ZERO; + } else { + LoadConst32(temp, value); + } Sw(temp, base, offset); } @@ -1152,22 +1176,48 @@ void MipsAssembler::StoreConst64ToOffset(int64_t value, base = AT; offset = 0; } - LoadConst32(temp, Low32Bits(value)); - Sw(temp, base, offset); - LoadConst32(temp, High32Bits(value)); - Sw(temp, base, offset + kMipsWordSize); + uint32_t low = Low32Bits(value); + uint32_t high = High32Bits(value); + if (low == 0) { + Sw(ZERO, base, offset); + } else { + LoadConst32(temp, low); + Sw(temp, base, offset); + } + if (high == 0) { + Sw(ZERO, base, offset + kMipsWordSize); + } else { + if (high != low) { + LoadConst32(temp, high); + } + Sw(temp, base, offset + kMipsWordSize); + } } void MipsAssembler::LoadSConst32(FRegister r, int32_t value, Register temp) { - LoadConst32(temp, value); + if (value == 0) { + temp = ZERO; + } else { + LoadConst32(temp, value); + } Mtc1(temp, r); } void MipsAssembler::LoadDConst64(FRegister rd, int64_t value, Register temp) { - LoadConst32(temp, Low32Bits(value)); - Mtc1(temp, rd); - LoadConst32(temp, High32Bits(value)); - Mthc1(temp, rd); + uint32_t low = Low32Bits(value); + uint32_t high = High32Bits(value); + if (low == 0) { + Mtc1(ZERO, rd); + } else { + LoadConst32(temp, low); + Mtc1(temp, rd); + } + if (high == 0) { + Mthc1(ZERO, rd); + } else { + LoadConst32(temp, high); + Mthc1(temp, rd); + } } void MipsAssembler::Addiu32(Register rt, Register rs, int32_t value, Register temp) { |