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[X86] Add AMD mwaitx, monitorx, and clzero instructions to the assembly parser and disassembler.

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llvm-svn: 250911
This commit is contained in:
Craig Topper 2015-10-21 17:26:45 +00:00
parent ef7d7a514f
commit dcce633156
3 changed files with 62 additions and 0 deletions
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26
lib/Target/X86/X86InstrInfo.td
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@ -2401,6 +2401,32 @@ defm T1MSKC : tbm_binary_intr<0x01, "t1mskc", MRM7r, MRM7m>;
defm TZMSK : tbm_binary_intr<0x01, "tzmsk", MRM4r, MRM4m>;
} // HasTBM, EFLAGS
//===----------------------------------------------------------------------===//
// MONITORX/MWAITX Instructions
//
let SchedRW = [WriteSystem] in {
let Uses = [EAX, ECX, EDX] in
def MONITORXrrr : I<0x01, MRM_FA, (outs), (ins), "monitorx", [],
IIC_SSE_MONITOR>, TB;
let Uses = [ECX, EAX, EBX] in
def MWAITXrr : I<0x01, MRM_FB, (outs), (ins), "mwaitx", [], IIC_SSE_MWAIT>,
TB;
} // SchedRW
def : InstAlias<"mwaitx\t{%eax, %ecx, %ebx|ebx, ecx, eax}", (MWAITXrr)>, Requires<[Not64BitMode]>;
def : InstAlias<"mwaitx\t{%rax, %rcx, %rbx|rbx, rcx, rax}", (MWAITXrr)>, Requires<[In64BitMode]>;
def : InstAlias<"monitorx\t{%eax, %ecx, %edx|edx, ecx, eax}", (MONITORXrrr)>,
Requires<[Not64BitMode]>;
def : InstAlias<"monitorx\t{%rax, %rcx, %rdx|rdx, rcx, rax}", (MONITORXrrr)>,
Requires<[In64BitMode]>;
//===----------------------------------------------------------------------===//
// CLZERO Instruction
//
let Uses = [EAX] in
def CLZEROr : I<0x01, MRM_FC, (outs), (ins), "clzero", []>, TB;
//===----------------------------------------------------------------------===//
// Pattern fragments to auto generate TBM instructions.
//===----------------------------------------------------------------------===//

20
test/MC/X86/x86-32-coverage.s
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@ -10742,3 +10742,23 @@ btcq $4, (%eax)
// CHECK: getsec
// CHECK: encoding: [0x0f,0x37]
getsec
// CHECK: monitorx
// CHECK: encoding: [0x0f,0x01,0xfa]
monitorx
// CHECK: monitorx
// CHECK: encoding: [0x0f,0x01,0xfa]
monitorx %eax, %ecx, %edx
// CHECK: mwaitx
// CHECK: encoding: [0x0f,0x01,0xfb]
mwaitx
// CHECK: mwaitx
// CHECK: encoding: [0x0f,0x01,0xfb]
mwaitx %eax, %ecx, %ebx
// CHECK: clzero
// CHECK: encoding: [0x0f,0x01,0xfc]
clzero

16
test/MC/X86/x86-64.s
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@ -1392,3 +1392,19 @@ vmovq %xmm0, %rax
// CHECK: seto 3735928559(%r10,%r9,8)
// CHECK: encoding: [0x43,0x0f,0x90,0x84,0xca,0xef,0xbe,0xad,0xde]
seto 0xdeadbeef(%r10,%r9,8)
// CHECK: monitorx
// CHECK: encoding: [0x0f,0x01,0xfa]
monitorx
// CHECK: monitorx
// CHECK: encoding: [0x0f,0x01,0xfa]
monitorx %rax, %rcx, %rdx
// CHECK: mwaitx
// CHECK: encoding: [0x0f,0x01,0xfb]
mwaitx
// CHECK: mwaitx
// CHECK: encoding: [0x0f,0x01,0xfb]
mwaitx %rax, %rcx, %rbx