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[mips] Handle 64 bit immediate in and/or/xor pseudo instructions on mips64 

Previously LLVM was assuming 32-bit signed immediates which results in and with
a bitmask that has bit 31 set to incorrectly include bits 63-32 in the result.
After applying this patch I can now compile all of the FreeBSD mips assembly
code with clang.

This issue also affects the nor, slt and sltu macros and I will fix those in a
separate review.

Patch By: Alexander Richardson

Commit message reformatted by sdardis.

Reviewers: atanasyan, theraven, sdardis

Differential Revision: https://reviews.llvm.org/D30298

llvm-svn: 296125
This commit is contained in:
Simon Dardis 2017-02-24 14:34:32 +00:00
parent 29c1afb880
commit aa20881749
5 changed files with 555 additions and 15 deletions
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18
llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
View File

@ -2392,9 +2392,9 @@ MipsAsmParser::tryExpandInstruction(MCInst &Inst, SMLoc IDLoc, MCStreamer &Out,
: MER_Success;
}
return MER_NotAMacro;
case Mips::ANDi: case Mips::ANDi_MM:
case Mips::ORi: case Mips::ORi_MM:
case Mips::XORi: case Mips::XORi_MM:
case Mips::ANDi: case Mips::ANDi_MM: case Mips::ANDi64:
case Mips::ORi: case Mips::ORi_MM: case Mips::ORi64:
case Mips::XORi: case Mips::XORi_MM: case Mips::XORi64:
if ((Inst.getNumOperands() == 3) && Inst.getOperand(0).isReg() &&
Inst.getOperand(1).isReg() && Inst.getOperand(2).isImm()) {
int64_t ImmValue = Inst.getOperand(2).getImm();
@ -2581,7 +2581,6 @@ bool MipsAsmParser::loadImmediate(int64_t ImmValue, unsigned DstReg,
uint16_t Bits31To16 = (ImmValue >> 16) & 0xffff;
uint16_t Bits15To0 = ImmValue & 0xffff;
if (!Is32BitImm && !isInt<32>(ImmValue)) {
// Traditional behaviour seems to special case this particular value. It's
// not clear why other masks are handled differently.
@ -3805,7 +3804,7 @@ bool MipsAsmParser::expandAliasImmediate(MCInst &Inst, SMLoc IDLoc,
unsigned SrcReg = Inst.getOperand(1).getReg();
int64_t ImmValue = Inst.getOperand(2).getImm();
bool Is32Bit = isInt<32>(ImmValue) || isUInt<32>(ImmValue);
bool Is32Bit = isInt<32>(ImmValue) || (!isGP64bit() && isUInt<32>(ImmValue));
unsigned FinalOpcode = Inst.getOpcode();
@ -3866,6 +3865,15 @@ bool MipsAsmParser::expandAliasImmediate(MCInst &Inst, SMLoc IDLoc,
case Mips::XORi_MM:
FinalOpcode = Mips::XOR_MM;
break;
case Mips::ANDi64:
FinalOpcode = Mips::AND64;
break;
case Mips::ORi64:
FinalOpcode = Mips::OR64;
break;
case Mips::XORi64:
FinalOpcode = Mips::XOR64;
break;
}
if (FinalDstReg == Mips::NoRegister)

9
llvm/lib/Target/Mips/Mips64InstrInfo.td
View File

@ -707,6 +707,15 @@ let AdditionalPredicates = [NotInMicroMips] in {
def : MipsInstAlias<"daddu $rs, $imm",
(DADDiu GPR64Opnd:$rs, GPR64Opnd:$rs, simm16_64:$imm),
0>, ISA_MIPS3;
defm : OneOrTwoOperandMacroImmediateAlias<"and", ANDi64, GPR64Opnd, imm64>,
GPR_64;
defm : OneOrTwoOperandMacroImmediateAlias<"or", ORi64, GPR64Opnd, imm64>,
GPR_64;
defm : OneOrTwoOperandMacroImmediateAlias<"xor", XORi64, GPR64Opnd, imm64>,
GPR_64;
}
def : MipsInstAlias<"dsll $rd, $rt, $rs",
(DSLLV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>,

22
llvm/lib/Target/Mips/MipsInstrInfo.td
View File

@ -2322,15 +2322,17 @@ def MULOUMacro : MipsAsmPseudoInst<(outs), (ins GPR32Opnd:$rd, GPR32Opnd:$rs,
//===----------------------------------------------------------------------===//
multiclass OneOrTwoOperandMacroImmediateAlias<string Memnomic,
Instruction Opcode> {
Instruction Opcode,
RegisterOperand RO = GPR32Opnd,
Operand Imm = simm32_relaxed> {
def : MipsInstAlias<!strconcat(Memnomic, " $rs, $rt, $imm"),
(Opcode GPR32Opnd:$rs,
GPR32Opnd:$rt,
simm32_relaxed:$imm), 0>;
(Opcode RO:$rs,
RO:$rt,
Imm:$imm), 0>;
def : MipsInstAlias<!strconcat(Memnomic, " $rs, $imm"),
(Opcode GPR32Opnd:$rs,
GPR32Opnd:$rs,
simm32_relaxed:$imm), 0>;
(Opcode RO:$rs,
RO:$rs,
Imm:$imm), 0>;
}
def : MipsInstAlias<"move $dst, $src",
@ -2384,11 +2386,11 @@ let AdditionalPredicates = [NotInMicroMips] in {
defm : OneOrTwoOperandMacroImmediateAlias<"addu", ADDiu>;
defm : OneOrTwoOperandMacroImmediateAlias<"and", ANDi>;
defm : OneOrTwoOperandMacroImmediateAlias<"and", ANDi>, GPR_32;
defm : OneOrTwoOperandMacroImmediateAlias<"or", ORi>;
defm : OneOrTwoOperandMacroImmediateAlias<"or", ORi>, GPR_32;
defm : OneOrTwoOperandMacroImmediateAlias<"xor", XORi>;
defm : OneOrTwoOperandMacroImmediateAlias<"xor", XORi>, GPR_32;
defm : OneOrTwoOperandMacroImmediateAlias<"slt", SLTi>;

106
llvm/test/MC/Mips/mips64-instalias-imm-expanding-broken.s Normal file
View File

@ -0,0 +1,106 @@
# RUN: llvm-mc -triple mips64el-unknown-linux -show-encoding -print-imm-hex %s | FileCheck %s
# XFAIL: *
.text
text_label:
# CHECK: text_label:
nor $4, $5, 0
# CHECK: addiu $4, $zero, 0x0 # encoding: [0x00,0x00,0x04,0x24]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 1
# CHECK-NEXT: addiu $4, $zero, 0x1 # encoding: [0x01,0x00,0x04,0x24]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0x8000
# CHECK-NEXT: ori $4, $zero, 0x8000 # encoding: [0x00,0x80,0x04,0x34]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, -0x8000
# CHECK-NEXT: addiu $4, $zero, -0x8000 # encoding: [0x00,0x80,0x04,0x24]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0x10000
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0x1a5a5
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xa5a5 # encoding: [0xa5,0xa5,0x84,0x34]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0xFFFFFFFF
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: dsrl32 $4, $4, 0x0 # encoding: [0x3e,0x20,0x04,0x00]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0xF0000000
# CHECK-NEXT: ori $4, $zero, 0xf000 # encoding: [0x00,0xf0,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0x7FFFFFFF
# CHECK-NEXT: lui $4, 0x7fff # encoding: [0xff,0x7f,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0x7FFFFFFFFFFFFFFF
# FIXME: this is awfully inefficient...
# CHECK-NEXT: lui $4, 0x7fff # encoding: [0xff,0x7f,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0xFFFFFFFFFFFFFFFF
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0xF000000000000000
# CHECK-NEXT: ori $4, $zero, 0xf000 # encoding: [0x00,0xf0,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x30 # encoding: [0x3c,0x24,0x04,0x00]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff # encoding: [0xff,0x00,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff0f # encoding: [0x0f,0xff,0x84,0x34]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
nor $4, $5, 0xff00ff00
# CHECK-NEXT: ori $4, $zero, 0xff00 # encoding: [0x00,0xff,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff00 # encoding: [0x00,0xff,0x84,0x34]
# CHECK-NEXT: nor $4, $4, $5 # encoding: [0x27,0x20,0x85,0x00]
slt $4, $5, -0x80000000
# CHECK: lui $4, 0x8000 # encoding: [0x00,0x80,0x04,0x3c]
# CHECK-NEXT: slt $4, $4, $5 # encoding: [0x2a,0x20,0x85,0x00]
slt $4, $5, -0x8001
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0x7fff # encoding: [0xff,0x7f,0x84,0x34]
# CHECK-NEXT: slt $4, $4, $5 # encoding: [0x2a,0x20,0x85,0x00]
slt $4, $5, -0x8000
# CHECK-NEXT: slti $4, $5, -0x8000 # encoding: [0x00,0x80,0xa4,0x28]
slt $4, $5, 0
# CHECK-NEXT: slti $4, $5, 0x0 # encoding: [0x00,0x00,0xa4,0x28]
slt $4, $5, 0xFFFF
# CHECK-NEXT: ori $4, $zero, 0xffff # encoding: [0xff,0xff,0x04,0x34]
# CHECK-NEXT: slt $4, $4, $5 # encoding: [0x2a,0x20,0x85,0x00]
slt $4, $5, 0x10000
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: slt $4, $4, $5 # encoding: [0x2a,0x20,0x85,0x00]
slt $4, $5, 0xFFFFFFFF
# CHECK-NOT: slti $4, $5, -0x1 # encoding: [0xff,0xff,0xa4,0x28]
sltu $4, $5, -0x80000000
# CHECK: lui $4, 0x8000 # encoding: [0x00,0x80,0x04,0x3c]
# CHECK-NEXT: sltu $4, $4, $5 # encoding: [0x2b,0x20,0x85,0x00]
sltu $4, $5, -0x8001
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0x7fff # encoding: [0xff,0x7f,0x84,0x34]
# CHECK-NEXT: sltu $4, $4, $5 # encoding: [0x2b,0x20,0x85,0x00]
sltu $4, $5, -0x8000
# CHECK-NEXT: sltiu $4, $5, -0x8000 # encoding: [0x00,0x80,0xa4,0x2c]
sltu $4, $5, 0
# CHECK-NEXT: sltiu $4, $5, 0x0 # encoding: [0x00,0x00,0xa4,0x2c]
sltu $4, $5, 0xFFFF
# CHECK-NEXT: ori $4, $zero, 0xffff # encoding: [0xff,0xff,0x04,0x34]
# CHECK-NEXT: sltu $4, $4, $5 # encoding: [0x2b,0x20,0x85,0x00]
sltu $4, $5, 0x10000
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: sltu $4, $4, $5 # encoding: [0x2b,0x20,0x85,0x00]
# FIXME: should this be sign extended or not???
sltu $4, $5, 0xFFFFFFFF
# CHECK-NOT: sltiu $4, $5, -0x1 # encoding: [0xff,0xff,0xa4,0x2c]

415
llvm/test/MC/Mips/mips64-instalias-imm-expanding.s Normal file
View File

@ -0,0 +1,415 @@
# RUN: llvm-mc -triple mips64el-unknown-linux -show-encoding -print-imm-hex %s | FileCheck %s
.text
text_label:
# CHECK: text_label:
add $4, -0x80000000
# CHECK-NEXT: lui $1, 0x8000 # encoding: [0x00,0x80,0x01,0x3c]
# CHECK-NEXT: add $4, $4, $1 # encoding: [0x20,0x20,0x81,0x00]
add $4, -0x8001
# CHECK-NEXT: lui $1, 0xffff # encoding: [0xff,0xff,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0x7fff # encoding: [0xff,0x7f,0x21,0x34]
# CHECK-NEXT: add $4, $4, $1 # encoding: [0x20,0x20,0x81,0x00]
add $4, -0x8000
# CHECK-NEXT: addi $4, $4, -0x8000 # encoding: [0x00,0x80,0x84,0x20]
add $4, 0
# CHECK-NEXT: addi $4, $4, 0x0 # encoding: [0x00,0x00,0x84,0x20]
add $4, 0xFFFF
# CHECK-NEXT: ori $1, $zero, 0xffff # encoding: [0xff,0xff,0x01,0x34]
# CHECK-NEXT: add $4, $4, $1 # encoding: [0x20,0x20,0x81,0x00]
add $4, 0x10000
# CHECK-NEXT: lui $1, 0x1 # encoding: [0x01,0x00,0x01,0x3c]
# CHECK-NEXT: add $4, $4, $1 # encoding: [0x20,0x20,0x81,0x00]
add $4, 0xFFFFFFFF # This should be sign-extended because it's a 32-bit add
# CHECK-NEXT: addi $4, $4, -0x1 # encoding: [0xff,0xff,0x84,0x20]
add $4, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: lui $1, 0xff # encoding: [0xff,0x00,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0xff0f # encoding: [0x0f,0xff,0x21,0x34]
# CHECK-NEXT: add $4, $4, $1 # encoding: [0x20,0x20,0x81,0x00]
add $4, $5, -0x80000000
# CHECK: lui $4, 0x8000 # encoding: [0x00,0x80,0x04,0x3c]
# CHECK-NEXT: add $4, $4, $5 # encoding: [0x20,0x20,0x85,0x00]
add $4, $5, -0x8001
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0x7fff # encoding: [0xff,0x7f,0x84,0x34]
# CHECK-NEXT: add $4, $4, $5 # encoding: [0x20,0x20,0x85,0x00]
add $4, $5, -0x8000
# CHECK-NEXT: addi $4, $5, -0x8000 # encoding: [0x00,0x80,0xa4,0x20]
add $4, $5, 0
# CHECK-NEXT: addi $4, $5, 0x0 # encoding: [0x00,0x00,0xa4,0x20]
add $4, $5, 0xFFFF
# CHECK-NEXT: ori $4, $zero, 0xffff # encoding: [0xff,0xff,0x04,0x34]
# CHECK-NEXT: add $4, $4, $5 # encoding: [0x20,0x20,0x85,0x00]
add $4, $5, 0x10000
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: add $4, $4, $5 # encoding: [0x20,0x20,0x85,0x00]
add $4, $5, 0xFFFFFFFF # This should be sign-extended because it's a 32-bit addi
# CHECK-NEXT: addi $4, $5, -0x1 # encoding: [0xff,0xff,0xa4,0x20]
add $4, $5, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: lui $4, 0xff # encoding: [0xff,0x00,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xff0f # encoding: [0x0f,0xff,0x84,0x34]
# CHECK-NEXT: add $4, $4, $5 # encoding: [0x20,0x20,0x85,0x00]
addu $4, -0x80000000
# CHECK: lui $1, 0x8000 # encoding: [0x00,0x80,0x01,0x3c]
# CHECK-NEXT: addu $4, $4, $1 # encoding: [0x21,0x20,0x81,0x00]
addu $4, -0x8001
# CHECK-NEXT: lui $1, 0xffff # encoding: [0xff,0xff,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0x7fff # encoding: [0xff,0x7f,0x21,0x34]
# CHECK-NEXT: addu $4, $4, $1 # encoding: [0x21,0x20,0x81,0x00]
addu $4, -0x8000
# CHECK-NEXT: addiu $4, $4, -0x8000 # encoding: [0x00,0x80,0x84,0x24]
addu $4, 0
# CHECK-NEXT: addiu $4, $4, 0x0 # encoding: [0x00,0x00,0x84,0x24]
addu $4, 0xFFFF
# CHECK-NEXT: ori $1, $zero, 0xffff # encoding: [0xff,0xff,0x01,0x34]
# CHECK-NEXT: addu $4, $4, $1 # encoding: [0x21,0x20,0x81,0x00]
addu $4, 0x10000
# CHECK-NEXT: lui $1, 0x1 # encoding: [0x01,0x00,0x01,0x3c]
# CHECK-NEXT: addu $4, $4, $1 # encoding: [0x21,0x20,0x81,0x00]
addu $4, 0xFFFFFFFF # This should be sign-extended because it's a 32-bit add
# CHECK-NEXT: addiu $4, $4, -0x1 # encoding: [0xff,0xff,0x84,0x24]
addu $4, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: lui $1, 0xff # encoding: [0xff,0x00,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0xff0f # encoding: [0x0f,0xff,0x21,0x34]
# CHECK-NEXT: addu $4, $4, $1 # encoding: [0x21,0x20,0x81,0x00]
addu $4, $5, -0x80000000
# CHECK: lui $4, 0x8000 # encoding: [0x00,0x80,0x04,0x3c]
# CHECK-NEXT: addu $4, $4, $5 # encoding: [0x21,0x20,0x85,0x00]
addu $4, $5, -0x8001
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0x7fff # encoding: [0xff,0x7f,0x84,0x34]
# CHECK-NEXT: addu $4, $4, $5 # encoding: [0x21,0x20,0x85,0x00]
addu $4, $5, -0x8000
# CHECK-NEXT: addiu $4, $5, -0x8000 # encoding: [0x00,0x80,0xa4,0x24]
addu $4, $5, 0
# CHECK-NEXT: addiu $4, $5, 0x0 # encoding: [0x00,0x00,0xa4,0x24]
addu $4, $5, 0xFFFF
# CHECK-NEXT: ori $4, $zero, 0xffff # encoding: [0xff,0xff,0x04,0x34]
# CHECK-NEXT: addu $4, $4, $5 # encoding: [0x21,0x20,0x85,0x00]
addu $4, $5, 0x10000
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: addu $4, $4, $5 # encoding: [0x21,0x20,0x85,0x00]
addu $4, $5, 0xFFFFFFFF # This should be sign-extended because it's a 32-bit add
# CHECK-NEXT: addiu $4, $5, -0x1 # encoding: [0xff,0xff,0xa4,0x24]
addu $4, $5, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: lui $4, 0xff # encoding: [0xff,0x00,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xff0f # encoding: [0x0f,0xff,0x84,0x34]
# CHECK-NEXT: addu $4, $4, $5 # encoding: [0x21,0x20,0x85,0x00]
and $4, -0x80000000
# CHECK: lui $1, 0x8000 # encoding: [0x00,0x80,0x01,0x3c]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, -0x8001
# CHECK-NEXT: lui $1, 0xffff # encoding: [0xff,0xff,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0x7fff # encoding: [0xff,0x7f,0x21,0x34]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, -0x8000
# CHECK-NEXT: addiu $1, $zero, -0x8000 # encoding: [0x00,0x80,0x01,0x24]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, 0
# CHECK-NEXT: andi $4, $4, 0x0 # encoding: [0x00,0x00,0x84,0x30]
and $4, 0xFFFF
# CHECK-NEXT: andi $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x30]
and $4, 0x10000
# CHECK-NEXT: lui $1, 0x1 # encoding: [0x01,0x00,0x01,0x3c]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, 0xFFFFFFFF
# CHECK-NEXT: lui $1, 0xffff # encoding: [0xff,0xff,0x01,0x3c]
# CHECK-NEXT: dsrl32 $1, $1, 0x0 # encoding: [0x3e,0x08,0x01,0x00]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, 0xF0000000
# CHECK-NEXT: ori $1, $zero, 0xf000 # encoding: [0x00,0xf0,0x01,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, 0x7FFFFFFF
# CHECK-NEXT: lui $1, 0x7fff # encoding: [0xff,0x7f,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, 0x7FFFFFFFFFFFFFFF
# CHECK-NEXT: lui $1, 0x7fff # encoding: [0xff,0x7f,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, 0xFFFFFFFFFFFFFFFF
# CHECK-NEXT: addiu $1, $zero, -0x1 # encoding: [0xff,0xff,0x01,0x24]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, 0xF000000000000000
# CHECK-NEXT: ori $1, $zero, 0xf000 # encoding: [0x00,0xf0,0x01,0x34]
# CHECK-NEXT: dsll $1, $1, 0x30 # encoding: [0x3c,0x0c,0x01,0x00]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: addiu $1, $zero, -0x1 # encoding: [0xff,0xff,0x01,0x24]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xff # encoding: [0xff,0x00,0x21,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xff0f # encoding: [0x0f,0xff,0x21,0x34]
# CHECK-NEXT: and $4, $4, $1 # encoding: [0x24,0x20,0x81,0x00]
and $4, $5, -0x80000000
# CHECK: lui $4, 0x8000 # encoding: [0x00,0x80,0x04,0x3c]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, -0x8001
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0x7fff # encoding: [0xff,0x7f,0x84,0x34]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, -0x8000
# CHECK-NEXT: addiu $4, $zero, -0x8000 # encoding: [0x00,0x80,0x04,0x24]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, 0
# CHECK-NEXT: andi $4, $5, 0x0 # encoding: [0x00,0x00,0xa4,0x30]
and $4, $5, 0xFFFF
# CHECK-NEXT: andi $4, $5, 0xffff # encoding: [0xff,0xff,0xa4,0x30]
and $4, $5, 0x10000
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, 0xFFFFFFFF
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: dsrl32 $4, $4, 0x0 # encoding: [0x3e,0x20,0x04,0x00]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, 0xF0000000
# CHECK-NEXT: ori $4, $zero, 0xf000 # encoding: [0x00,0xf0,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, 0x7FFFFFFF
# CHECK-NEXT: lui $4, 0x7fff # encoding: [0xff,0x7f,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, 0x7FFFFFFFFFFFFFFF
# CHECK-NEXT: lui $4, 0x7fff # encoding: [0xff,0x7f,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, 0xFFFFFFFFFFFFFFFF
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, 0xF000000000000000
# CHECK-NEXT: ori $4, $zero, 0xf000 # encoding: [0x00,0xf0,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x30 # encoding: [0x3c,0x24,0x04,0x00]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
and $4, $5, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff # encoding: [0xff,0x00,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff0f # encoding: [0x0f,0xff,0x84,0x34]
# CHECK-NEXT: and $4, $4, $5 # encoding: [0x24,0x20,0x85,0x00]
or $4, -0x80000000
# CHECK: lui $1, 0x8000 # encoding: [0x00,0x80,0x01,0x3c]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, -0x8001
# CHECK-NEXT: lui $1, 0xffff # encoding: [0xff,0xff,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0x7fff # encoding: [0xff,0x7f,0x21,0x34]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, -0x8000
# CHECK-NEXT: addiu $1, $zero, -0x8000 # encoding: [0x00,0x80,0x01,0x24]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, 0
# CHECK-NEXT: ori $4, $4, 0x0 # encoding: [0x00,0x00,0x84,0x34]
or $4, 0xFFFF
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
or $4, 0x10000
# CHECK-NEXT: lui $1, 0x1 # encoding: [0x01,0x00,0x01,0x3c]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, 0xFFFFFFFF
# CHECK-NEXT: lui $1, 0xffff # encoding: [0xff,0xff,0x01,0x3c]
# CHECK-NEXT: dsrl32 $1, $1, 0x0 # encoding: [0x3e,0x08,0x01,0x00]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, 0xF0000000
# CHECK-NEXT: ori $1, $zero, 0xf000 # encoding: [0x00,0xf0,0x01,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, 0x7FFFFFFF
# CHECK-NEXT: lui $1, 0x7fff # encoding: [0xff,0x7f,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, 0x7FFFFFFFFFFFFFFF
# CHECK-NEXT: lui $1, 0x7fff # encoding: [0xff,0x7f,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, 0xFFFFFFFFFFFFFFFF
# CHECK-NEXT: addiu $1, $zero, -0x1 # encoding: [0xff,0xff,0x01,0x24]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, 0xF000000000000000
# CHECK-NEXT: ori $1, $zero, 0xf000 # encoding: [0x00,0xf0,0x01,0x34]
# CHECK-NEXT: dsll $1, $1, 0x30 # encoding: [0x3c,0x0c,0x01,0x00]
# CHECK-NEXT: or $4, $4, $1 # encoding: [0x25,0x20,0x81,0x00]
or $4, $5, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff # encoding: [0xff,0x00,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff0f # encoding: [0x0f,0xff,0x84,0x34]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, -0x80000000
# CHECK: lui $4, 0x8000 # encoding: [0x00,0x80,0x04,0x3c]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, -0x8001
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0x7fff # encoding: [0xff,0x7f,0x84,0x34]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, -0x8000
# CHECK-NEXT: addiu $4, $zero, -0x8000 # encoding: [0x00,0x80,0x04,0x24]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, 0
# CHECK-NEXT: ori $4, $5, 0x0 # encoding: [0x00,0x00,0xa4,0x34]
or $4, $5, 0xFFFF
# CHECK-NEXT: ori $4, $5, 0xffff # encoding: [0xff,0xff,0xa4,0x34]
or $4, $5, 0x10000
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, 0xFFFFFFFF
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: dsrl32 $4, $4, 0x0 # encoding: [0x3e,0x20,0x04,0x00]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, 0xF0000000
# CHECK-NEXT: ori $4, $zero, 0xf000 # encoding: [0x00,0xf0,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, 0x7FFFFFFF
# CHECK-NEXT: lui $4, 0x7fff # encoding: [0xff,0x7f,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, 0x7FFFFFFFFFFFFFFF
# CHECK-NEXT: lui $4, 0x7fff # encoding: [0xff,0x7f,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, 0xFFFFFFFFFFFFFFFF
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, 0xF000000000000000
# CHECK-NEXT: ori $4, $zero, 0xf000 # encoding: [0x00,0xf0,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x30 # encoding: [0x3c,0x24,0x04,0x00]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
or $4, $5, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff # encoding: [0xff,0x00,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff0f # encoding: [0x0f,0xff,0x84,0x34]
# CHECK-NEXT: or $4, $4, $5 # encoding: [0x25,0x20,0x85,0x00]
xor $4, -0x80000000
# CHECK: lui $1, 0x8000 # encoding: [0x00,0x80,0x01,0x3c]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, -0x8001
# CHECK-NEXT: lui $1, 0xffff # encoding: [0xff,0xff,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0x7fff # encoding: [0xff,0x7f,0x21,0x34]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, -0x8000
# CHECK-NEXT: addiu $1, $zero, -0x8000 # encoding: [0x00,0x80,0x01,0x24]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, 0
# CHECK-NEXT: xori $4, $4, 0x0 # encoding: [0x00,0x00,0x84,0x38]
xor $4, 0xFFFF
# CHECK-NEXT: xori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x38]
xor $4, 0x10000
# CHECK-NEXT: lui $1, 0x1 # encoding: [0x01,0x00,0x01,0x3c]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, 0xFFFFFFFF
# CHECK-NEXT: lui $1, 0xffff # encoding: [0xff,0xff,0x01,0x3c]
# CHECK-NEXT: dsrl32 $1, $1, 0x0 # encoding: [0x3e,0x08,0x01,0x00]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, 0xF0000000
# CHECK-NEXT: ori $1, $zero, 0xf000 # encoding: [0x00,0xf0,0x01,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00
xor $4, 0x7FFFFFFF
# CHECK-NEXT: lui $1, 0x7fff # encoding: [0xff,0x7f,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, 0x7FFFFFFFFFFFFFFF
# CHECK-NEXT: lui $1, 0x7fff # encoding: [0xff,0x7f,0x01,0x3c]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xffff # encoding: [0xff,0xff,0x21,0x34]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, 0xFFFFFFFFFFFFFFFF
# CHECK-NEXT: addiu $1, $zero, -0x1 # encoding: [0xff,0xff,0x01,0x24]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, 0xF000000000000000
# CHECK-NEXT: ori $1, $zero, 0xf000 # encoding: [0x00,0xf0,0x01,0x34]
# CHECK-NEXT: dsll $1, $1, 0x30 # encoding: [0x3c,0x0c,0x01,0x00]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: addiu $1, $zero, -0x1 # encoding: [0xff,0xff,0x01,0x24]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xff # encoding: [0xff,0x00,0x21,0x34]
# CHECK-NEXT: dsll $1, $1, 0x10 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK-NEXT: ori $1, $1, 0xff0f # encoding: [0x0f,0xff,0x21,0x34]
# CHECK-NEXT: xor $4, $4, $1 # encoding: [0x26,0x20,0x81,0x00]
xor $4, $5, -0x80000000
# CHECK: lui $4, 0x8000 # encoding: [0x00,0x80,0x04,0x3c]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, -0x8001
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0x7fff # encoding: [0xff,0x7f,0x84,0x34]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, -0x8000
# CHECK-NEXT: addiu $4, $zero, -0x8000 # encoding: [0x00,0x80,0x04,0x24]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, 0
# CHECK-NEXT: xori $4, $5, 0x0 # encoding: [0x00,0x00,0xa4,0x38]
xor $4, $5, 0xFFFF
# CHECK-NEXT: xori $4, $5, 0xffff # encoding: [0xff,0xff,0xa4,0x38]
xor $4, $5, 0x10000
# CHECK-NEXT: lui $4, 0x1 # encoding: [0x01,0x00,0x04,0x3c]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, 0xFFFFFFFF
# CHECK-NEXT: lui $4, 0xffff # encoding: [0xff,0xff,0x04,0x3c]
# CHECK-NEXT: dsrl32 $4, $4, 0x0 # encoding: [0x3e,0x20,0x04,0x00]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, 0xF0000000
# CHECK-NEXT: ori $4, $zero, 0xf000 # encoding: [0x00,0xf0,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, 0x7FFFFFFF
# CHECK-NEXT: lui $4, 0x7fff # encoding: [0xff,0x7f,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, 0x7FFFFFFFFFFFFFFF
# FIXME: this is awfully inefficient...
# CHECK-NEXT: lui $4, 0x7fff # encoding: [0xff,0x7f,0x04,0x3c]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xffff # encoding: [0xff,0xff,0x84,0x34]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, 0xFFFFFFFFFFFFFFFF
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, 0xF000000000000000
# CHECK-NEXT: ori $4, $zero, 0xf000 # encoding: [0x00,0xf0,0x04,0x34]
# CHECK-NEXT: dsll $4, $4, 0x30 # encoding: [0x3c,0x24,0x04,0x00]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]
xor $4, $5, ~(0xf0000000|0x0f000000|0x000000f0)
# CHECK-NEXT: addiu $4, $zero, -0x1 # encoding: [0xff,0xff,0x04,0x24]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff # encoding: [0xff,0x00,0x84,0x34]
# CHECK-NEXT: dsll $4, $4, 0x10 # encoding: [0x38,0x24,0x04,0x00]
# CHECK-NEXT: ori $4, $4, 0xff0f # encoding: [0x0f,0xff,0x84,0x34]
# CHECK-NEXT: xor $4, $4, $5 # encoding: [0x26,0x20,0x85,0x00]