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[X86] Add RAX/EAX/AX/AL Uses/Defs to the absolute memory location move instructions. Patch by Florian Lukas with some additional instructions fixed by me. Fixes PR18975.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202345 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2014-02-27 04:07:57 +00:00
parent 9572b75e5b
commit 956ef7f165
1 changed files with 20 additions and 0 deletions
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20
lib/Target/X86/X86InstrInfo.td
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@ -1242,43 +1242,55 @@ let hasSideEffects = 0 in {
/// 32-bit offset from the segment base. These are only valid in x86-32 mode.
let SchedRW = [WriteALU] in {
let mayLoad = 1 in {
let Defs = [AL] in
def MOV8o8a : Ii32 <0xA0, RawFrmMemOffs, (outs), (ins offset8:$src),
"mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>,
Requires<[In32BitMode]>;
let Defs = [AX] in
def MOV16o16a : Ii32 <0xA1, RawFrmMemOffs, (outs), (ins offset16:$src),
"mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
OpSize16, Requires<[In32BitMode]>;
let Defs = [EAX] in
def MOV32o32a : Ii32 <0xA1, RawFrmMemOffs, (outs), (ins offset32:$src),
"mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
OpSize32, Requires<[In32BitMode]>;
let Defs = [AL] in
def MOV8o8a_16 : Ii16 <0xA0, RawFrmMemOffs, (outs), (ins offset8:$src),
"mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>,
AdSize, Requires<[In16BitMode]>;
let Defs = [AX] in
def MOV16o16a_16 : Ii16 <0xA1, RawFrmMemOffs, (outs), (ins offset16:$src),
"mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
OpSize16, AdSize, Requires<[In16BitMode]>;
let Defs = [EAX] in
def MOV32o32a_16 : Ii16 <0xA1, RawFrmMemOffs, (outs), (ins offset32:$src),
"mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
AdSize, OpSize32, Requires<[In16BitMode]>;
}
let mayStore = 1 in {
let Uses = [AL] in
def MOV8ao8 : Ii32 <0xA2, RawFrmMemOffs, (outs offset8:$dst), (ins),
"mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>,
Requires<[In32BitMode]>;
let Uses = [AX] in
def MOV16ao16 : Ii32 <0xA3, RawFrmMemOffs, (outs offset16:$dst), (ins),
"mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
OpSize16, Requires<[In32BitMode]>;
let Uses = [EAX] in
def MOV32ao32 : Ii32 <0xA3, RawFrmMemOffs, (outs offset32:$dst), (ins),
"mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
OpSize32, Requires<[In32BitMode]>;
let Uses = [AL] in
def MOV8ao8_16 : Ii16 <0xA2, RawFrmMemOffs, (outs offset8:$dst), (ins),
"mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>,
AdSize, Requires<[In16BitMode]>;
let Uses = [AX] in
def MOV16ao16_16 : Ii16 <0xA3, RawFrmMemOffs, (outs offset16:$dst), (ins),
"mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
OpSize16, AdSize, Requires<[In16BitMode]>;
let Uses = [EAX] in
def MOV32ao32_16 : Ii16 <0xA3, RawFrmMemOffs, (outs offset32:$dst), (ins),
"mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
OpSize32, AdSize, Requires<[In16BitMode]>;
@ -1288,30 +1300,38 @@ def MOV32ao32_16 : Ii16 <0xA3, RawFrmMemOffs, (outs offset32:$dst), (ins),
// These forms all have full 64-bit absolute addresses in their instructions
// and use the movabs mnemonic to indicate this specific form.
let mayLoad = 1 in {
let Defs = [AL] in
def MOV64o8a : RIi64_NOREX<0xA0, RawFrmMemOffs, (outs), (ins offset8:$src),
"movabs{b}\t{$src, %al|al, $src}", []>,
Requires<[In64BitMode]>;
let Defs = [AX] in
def MOV64o16a : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset16:$src),
"movabs{w}\t{$src, %ax|ax, $src}", []>, OpSize16,
Requires<[In64BitMode]>;
let Defs = [EAX] in
def MOV64o32a : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset32:$src),
"movabs{l}\t{$src, %eax|eax, $src}", []>, OpSize32,
Requires<[In64BitMode]>;
let Defs = [RAX] in
def MOV64o64a : RIi64<0xA1, RawFrmMemOffs, (outs), (ins offset64:$src),
"movabs{q}\t{$src, %rax|rax, $src}", []>,
Requires<[In64BitMode]>;
}
let mayStore = 1 in {
let Uses = [AL] in
def MOV64ao8 : RIi64_NOREX<0xA2, RawFrmMemOffs, (outs offset8:$dst), (ins),
"movabs{b}\t{%al, $dst|$dst, al}", []>,
Requires<[In64BitMode]>;
let Uses = [AX] in
def MOV64ao16 : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset16:$dst), (ins),
"movabs{w}\t{%ax, $dst|$dst, ax}", []>, OpSize16,
Requires<[In64BitMode]>;
let Uses = [EAX] in
def MOV64ao32 : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset32:$dst), (ins),
"movabs{l}\t{%eax, $dst|$dst, eax}", []>, OpSize32,
Requires<[In64BitMode]>;
let Uses = [RAX] in
def MOV64ao64 : RIi64<0xA3, RawFrmMemOffs, (outs offset64:$dst), (ins),
"movabs{q}\t{%rax, $dst|$dst, rax}", []>,
Requires<[In64BitMode]>;