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[X86] Added missing mayLoad/mayStore attributes to some X86 instructions.

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Throughout the effort of automatically generating the X86 memory folding tables these missing information were encountered.
This is a preparation work for a future patch including the automation of these tables.

Differential Revision: https://reviews.llvm.org/D31714

llvm-svn: 300190
This commit is contained in:
Ayman Musa 2017-04-13 10:03:45 +00:00
parent a5494eb7c7
commit 90f0f0a976
7 changed files with 55 additions and 19 deletions
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2
lib/Target/X86/X86InstrAVX512.td
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@ -1546,6 +1546,7 @@ multiclass avx512_cmp_scalar<X86VectorVTInfo _, SDNode OpNode, SDNode OpNodeRnd>
(OpNode (_.VT _.RC:$src1),
(_.VT _.RC:$src2),
imm:$cc)>, EVEX_4V;
let mayLoad = 1 in
defm rm_Int : AVX512_maskable_cmp<0xC2, MRMSrcMem, _,
(outs _.KRC:$dst),
(ins _.RC:$src1, _.IntScalarMemOp:$src2, AVXCC:$cc),
@ -1570,6 +1571,7 @@ multiclass avx512_cmp_scalar<X86VectorVTInfo _, SDNode OpNode, SDNode OpNodeRnd>
(ins _.RC:$src1, _.RC:$src2, u8imm:$cc),
"vcmp"#_.Suffix,
"$cc, $src2, $src1", "$src1, $src2, $cc">, EVEX_4V;
let mayLoad = 1 in
defm rmi_alt : AVX512_maskable_cmp_alt<0xC2, MRMSrcMem, _,
(outs _.KRC:$dst),
(ins _.RC:$src1, _.ScalarMemOp:$src2, u8imm:$cc),

12
lib/Target/X86/X86InstrInfo.td
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@ -1124,13 +1124,15 @@ def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
IIC_POP_REG>, OpSize16;
def POP16rmm: I<0x8F, MRM0m, (outs), (ins i16mem:$dst), "pop{w}\t$dst", [],
IIC_POP_MEM>, OpSize16;
def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
} // mayLoad, SchedRW
let mayStore = 1, mayLoad = 1, SchedRW = [WriteRMW] in {
def POP16rmm: I<0x8F, MRM0m, (outs), (ins i16mem:$dst), "pop{w}\t$dst", [],
IIC_POP_MEM>, OpSize16;
def POP32rmm: I<0x8F, MRM0m, (outs), (ins i32mem:$dst), "pop{l}\t$dst", [],
IIC_POP_MEM>, OpSize32, Requires<[Not64BitMode]>;
} // mayLoad, SchedRW
} // mayStore, mayLoad, WriteRMW
let mayStore = 1, SchedRW = [WriteStore] in {
def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
@ -1212,9 +1214,10 @@ def POP64r : I<0x58, AddRegFrm, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
} // mayLoad, SchedRW
let mayLoad = 1, mayStore = 1, SchedRW = [WriteRMW] in
def POP64rmm: I<0x8F, MRM0m, (outs), (ins i64mem:$dst), "pop{q}\t$dst", [],
IIC_POP_MEM>, OpSize32, Requires<[In64BitMode]>;
} // mayLoad, SchedRW
let mayStore = 1, SchedRW = [WriteStore] in {
def PUSH64r : I<0x50, AddRegFrm, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
@ -2102,6 +2105,7 @@ def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
"arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_REG>,
Requires<[Not64BitMode]>;
let mayStore = 1 in
def ARPL16mr : I<0x63, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
"arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
Requires<[Not64BitMode]>;

10
lib/Target/X86/X86InstrMPX.td
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@ -14,6 +14,7 @@
//===----------------------------------------------------------------------===//
multiclass mpx_bound_make<bits<8> opc, string OpcodeStr> {
let mayLoad = 1 in {
def 32rm: I<opc, MRMSrcMem, (outs BNDR:$dst), (ins i32mem:$src),
OpcodeStr#"\t{$src, $dst|$dst, $src}", []>,
Requires<[HasMPX, Not64BitMode]>;
@ -21,16 +22,19 @@ multiclass mpx_bound_make<bits<8> opc, string OpcodeStr> {
OpcodeStr#"\t{$src, $dst|$dst, $src}", []>,
Requires<[HasMPX, In64BitMode]>;
}
}
defm BNDMK : mpx_bound_make<0x1B, "bndmk">, XS;
multiclass mpx_bound_check<bits<8> opc, string OpcodeStr> {
let mayLoad = 1 in {
def 32rm: I<opc, MRMSrcMem, (outs), (ins BNDR:$src1, i32mem:$src2),
OpcodeStr#"\t{$src2, $src1|$src1, $src2}", []>,
Requires<[HasMPX, Not64BitMode]>;
def 64rm: RI<opc, MRMSrcMem, (outs), (ins BNDR:$src1, i64mem:$src2),
OpcodeStr#"\t{$src2, $src1|$src1, $src2}", []>,
Requires<[HasMPX, In64BitMode]>;
}
def 32rr: I<opc, MRMSrcReg, (outs), (ins BNDR:$src1, GR32:$src2),
OpcodeStr#"\t{$src2, $src1|$src1, $src2}", []>,
Requires<[HasMPX, Not64BitMode]>;
@ -45,16 +49,18 @@ defm BNDCN : mpx_bound_check<0x1B, "bndcn">, XD;
def BNDMOVRMrr : I<0x1A, MRMSrcReg, (outs BNDR:$dst), (ins BNDR:$src),
"bndmov\t{$src, $dst|$dst, $src}", []>, PD,
Requires<[HasMPX]>;
let mayLoad = 1 in {
def BNDMOVRM32rm : I<0x1A, MRMSrcMem, (outs BNDR:$dst), (ins i64mem:$src),
"bndmov\t{$src, $dst|$dst, $src}", []>, PD,
Requires<[HasMPX, Not64BitMode]>;
def BNDMOVRM64rm : RI<0x1A, MRMSrcMem, (outs BNDR:$dst), (ins i128mem:$src),
"bndmov\t{$src, $dst|$dst, $src}", []>, PD,
Requires<[HasMPX, In64BitMode]>;
}
def BNDMOVMRrr : I<0x1B, MRMDestReg, (outs BNDR:$dst), (ins BNDR:$src),
"bndmov\t{$src, $dst|$dst, $src}", []>, PD,
Requires<[HasMPX]>;
let mayStore = 1 in {
def BNDMOVMR32mr : I<0x1B, MRMDestMem, (outs), (ins i64mem:$dst, BNDR:$src),
"bndmov\t{$src, $dst|$dst, $src}", []>, PD,
Requires<[HasMPX, Not64BitMode]>;
@ -65,6 +71,8 @@ def BNDMOVMR64mr : RI<0x1B, MRMDestMem, (outs), (ins i128mem:$dst, BNDR:$src),
def BNDSTXmr: I<0x1B, MRMDestMem, (outs), (ins i64mem:$dst, BNDR:$src),
"bndstx\t{$src, $dst|$dst, $src}", []>, PS,
Requires<[HasMPX]>;
}
let mayLoad = 1 in
def BNDLDXrm: I<0x1A, MRMSrcMem, (outs BNDR:$dst), (ins i64mem:$src),
"bndldx\t{$src, $dst|$dst, $src}", []>, PS,
Requires<[HasMPX]>;

3
lib/Target/X86/X86InstrSSE.td
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@ -2342,6 +2342,7 @@ multiclass sse12_cmp_scalar_int<Operand memop, Operand CC,
VR128:$src, immLeaf:$cc))],
itins.rr>,
Sched<[itins.Sched]>;
let mayLoad = 1 in
def rm : SIi8<0xC2, MRMSrcMem, (outs VR128:$dst),
(ins VR128:$src1, memop:$src, CC:$cc), asm,
[(set VR128:$dst, (Int VR128:$src1,
@ -2385,6 +2386,7 @@ multiclass sse12_ord_cmp<bits<8> opc, RegisterClass RC, SDNode OpNode,
[(set EFLAGS, (OpNode (vt RC:$src1), RC:$src2))],
IIC_SSE_COMIS_RR>,
Sched<[WriteFAdd]>;
let mayLoad = 1 in
def rm: SI<opc, MRMSrcMem, (outs), (ins RC:$src1, x86memop:$src2),
!strconcat(OpcodeStr, "\t{$src2, $src1|$src1, $src2}"),
[(set EFLAGS, (OpNode (vt RC:$src1),
@ -2402,6 +2404,7 @@ multiclass sse12_ord_cmp_int<bits<8> opc, RegisterClass RC, SDNode OpNode,
[(set EFLAGS, (OpNode (vt RC:$src1), RC:$src2))],
IIC_SSE_COMIS_RR>,
Sched<[WriteFAdd]>;
let mayLoad = 1 in
def rm: SI<opc, MRMSrcMem, (outs), (ins RC:$src1, memop:$src2),
!strconcat(OpcodeStr, "\t{$src2, $src1|$src1, $src2}"),
[(set EFLAGS, (OpNode (vt RC:$src1),

2
lib/Target/X86/X86InstrShiftRotate.td
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@ -403,7 +403,7 @@ def RCR64ri : RIi8<0xC1, MRM3r, (outs GR64:$dst), (ins GR64:$src1, u8imm:$cnt),
} // Constraints = "$src = $dst"
let SchedRW = [WriteShiftLd, WriteRMW] in {
let SchedRW = [WriteShiftLd, WriteRMW], mayStore = 1 in {
let Uses = [EFLAGS] in {
def RCL8m1 : I<0xD0, MRM2m, (outs), (ins i8mem:$dst),
"rcl{b}\t$dst", [], IIC_SR>;

25
lib/Target/X86/X86InstrSystem.td
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@ -173,27 +173,28 @@ def MOV32rs : I<0x8C, MRMDestReg, (outs GR32:$dst), (ins SEGMENT_REG:$src),
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>, OpSize32;
def MOV64rs : RI<0x8C, MRMDestReg, (outs GR64:$dst), (ins SEGMENT_REG:$src),
"mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>;
let mayStore = 1 in {
def MOV16ms : I<0x8C, MRMDestMem, (outs), (ins i16mem:$dst, SEGMENT_REG:$src),
"mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>, OpSize16;
def MOV32ms : I<0x8C, MRMDestMem, (outs), (ins i32mem:$dst, SEGMENT_REG:$src),
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>, OpSize32;
def MOV64ms : RI<0x8C, MRMDestMem, (outs), (ins i64mem:$dst, SEGMENT_REG:$src),
"mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>;
}
def MOV16sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR16:$src),
"mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>, OpSize16;
def MOV32sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR32:$src),
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>, OpSize32;
def MOV64sr : RI<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR64:$src),
"mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>;
let mayLoad = 1 in {
def MOV16sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i16mem:$src),
"mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>, OpSize16;
def MOV32sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i32mem:$src),
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>, OpSize32;
def MOV64sm : RI<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i64mem:$src),
"mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>;
}
} // SchedRW
//===----------------------------------------------------------------------===//
@ -202,6 +203,7 @@ def MOV64sm : RI<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i64mem:$src),
let SchedRW = [WriteSystem] in {
def SWAPGS : I<0x01, MRM_F8, (outs), (ins), "swapgs", [], IIC_SWAPGS>, TB;
let mayLoad = 1 in
def LAR16rm : I<0x02, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
"lar{w}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB,
OpSize16;
@ -210,6 +212,7 @@ def LAR16rr : I<0x02, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
OpSize16;
// i16mem operand in LAR32rm and GR32 operand in LAR32rr is not a typo.
let mayLoad = 1 in
def LAR32rm : I<0x02, MRMSrcMem, (outs GR32:$dst), (ins i16mem:$src),
"lar{l}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB,
OpSize32;
@ -217,23 +220,27 @@ def LAR32rr : I<0x02, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"lar{l}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RR>, TB,
OpSize32;
// i16mem operand in LAR64rm and GR32 operand in LAR32rr is not a typo.
let mayLoad = 1 in
def LAR64rm : RI<0x02, MRMSrcMem, (outs GR64:$dst), (ins i16mem:$src),
"lar{q}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB;
def LAR64rr : RI<0x02, MRMSrcReg, (outs GR64:$dst), (ins GR32:$src),
"lar{q}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RR>, TB;
let mayLoad = 1 in
def LSL16rm : I<0x03, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
"lsl{w}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB,
OpSize16;
def LSL16rr : I<0x03, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
"lsl{w}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RR>, TB,
OpSize16;
let mayLoad = 1 in
def LSL32rm : I<0x03, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
"lsl{l}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB,
OpSize32;
def LSL32rr : I<0x03, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"lsl{l}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RR>, TB,
OpSize32;
let mayLoad = 1 in
def LSL64rm : RI<0x03, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
"lsl{q}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB;
def LSL64rr : RI<0x03, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
@ -248,11 +255,13 @@ def STR32r : I<0x00, MRM1r, (outs GR32:$dst), (ins),
"str{l}\t$dst", [], IIC_STR>, TB, OpSize32;
def STR64r : RI<0x00, MRM1r, (outs GR64:$dst), (ins),
"str{q}\t$dst", [], IIC_STR>, TB;
let mayStore = 1 in
def STRm : I<0x00, MRM1m, (outs), (ins i16mem:$dst),
"str{w}\t$dst", [], IIC_STR>, TB;
def LTRr : I<0x00, MRM3r, (outs), (ins GR16:$src),
"ltr{w}\t$src", [], IIC_LTR>, TB;
let mayLoad = 1 in
def LTRm : I<0x00, MRM3m, (outs), (ins i16mem:$src),
"ltr{w}\t$src", [], IIC_LTR>, TB;
@ -377,12 +386,14 @@ def LGS64rm : RI<0xb5, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
def VERRr : I<0x00, MRM4r, (outs), (ins GR16:$seg),
"verr\t$seg", [], IIC_VERR>, TB;
def VERRm : I<0x00, MRM4m, (outs), (ins i16mem:$seg),
"verr\t$seg", [], IIC_VERR>, TB;
def VERWr : I<0x00, MRM5r, (outs), (ins GR16:$seg),
"verw\t$seg", [], IIC_VERW_MEM>, TB;
let mayLoad = 1 in {
def VERRm : I<0x00, MRM4m, (outs), (ins i16mem:$seg),
"verr\t$seg", [], IIC_VERR>, TB;
def VERWm : I<0x00, MRM5m, (outs), (ins i16mem:$seg),
"verw\t$seg", [], IIC_VERW_REG>, TB;
}
} // SchedRW
//===----------------------------------------------------------------------===//
@ -403,6 +414,7 @@ def SIDT64m : I<0x01, MRM1m, (outs), (ins opaque80mem:$dst),
"sidt{q}\t$dst", []>, TB, Requires <[In64BitMode]>;
def SLDT16r : I<0x00, MRM0r, (outs GR16:$dst), (ins),
"sldt{w}\t$dst", [], IIC_SLDT>, TB, OpSize16;
let mayStore = 1 in
def SLDT16m : I<0x00, MRM0m, (outs), (ins i16mem:$dst),
"sldt{w}\t$dst", [], IIC_SLDT>, TB;
def SLDT32r : I<0x00, MRM0r, (outs GR32:$dst), (ins),
@ -412,6 +424,7 @@ def SLDT32r : I<0x00, MRM0r, (outs GR32:$dst), (ins),
// extension.
def SLDT64r : RI<0x00, MRM0r, (outs GR64:$dst), (ins),
"sldt{q}\t$dst", [], IIC_SLDT>, TB;
let mayStore = 1 in
def SLDT64m : RI<0x00, MRM0m, (outs), (ins i16mem:$dst),
"sldt{q}\t$dst", [], IIC_SLDT>, TB;
@ -429,6 +442,7 @@ def LIDT64m : I<0x01, MRM3m, (outs), (ins opaque80mem:$src),
"lidt{q}\t$src", [], IIC_LIDT>, TB, Requires<[In64BitMode]>;
def LLDT16r : I<0x00, MRM2r, (outs), (ins GR16:$src),
"lldt{w}\t$src", [], IIC_LLDT_REG>, TB;
let mayLoad = 1 in
def LLDT16m : I<0x00, MRM2m, (outs), (ins i16mem:$src),
"lldt{w}\t$src", [], IIC_LLDT_MEM>, TB;
} // SchedRW
@ -459,6 +473,7 @@ def SMSW16m : I<0x01, MRM4m, (outs), (ins i16mem:$dst),
def LMSW16r : I<0x01, MRM6r, (outs), (ins GR16:$src),
"lmsw{w}\t$src", [], IIC_LMSW_MEM>, TB;
let mayLoad = 1 in
def LMSW16m : I<0x01, MRM6m, (outs), (ins i16mem:$src),
"lmsw{w}\t$src", [], IIC_LMSW_REG>, TB;

20
lib/Target/X86/X86InstrVMX.td
View File

@ -43,22 +43,26 @@ def VMPTRLDm : I<0xC7, MRM6m, (outs), (ins i64mem:$vmcs),
"vmptrld\t$vmcs", []>, PS;
def VMPTRSTm : I<0xC7, MRM7m, (outs), (ins i64mem:$vmcs),
"vmptrst\t$vmcs", []>, TB;
def VMREAD64mr : I<0x78, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
"vmread{q}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[In64BitMode]>;
def VMREAD64rr : I<0x78, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
"vmread{q}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[In64BitMode]>;
def VMREAD32rr : I<0x78, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
"vmread{l}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[Not64BitMode]>;
let mayStore = 1 in {
def VMREAD64mr : I<0x78, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
"vmread{q}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[In64BitMode]>;
def VMREAD32mr : I<0x78, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
"vmread{l}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[Not64BitMode]>;
def VMREAD32rr : I<0x78, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
"vmread{l}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[Not64BitMode]>;
def VMWRITE64rm : I<0x79, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
"vmwrite{q}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[In64BitMode]>;
}
def VMWRITE64rr : I<0x79, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
"vmwrite{q}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[In64BitMode]>;
def VMWRITE32rr : I<0x79, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"vmwrite{l}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[Not64BitMode]>;
let mayLoad = 1 in {
def VMWRITE64rm : I<0x79, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
"vmwrite{q}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[In64BitMode]>;
def VMWRITE32rm : I<0x79, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
"vmwrite{l}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[Not64BitMode]>;
def VMWRITE32rr : I<0x79, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"vmwrite{l}\t{$src, $dst|$dst, $src}", []>, PS, Requires<[Not64BitMode]>;
}
// 0F 01 C4
def VMXOFF : I<0x01, MRM_C4, (outs), (ins), "vmxoff", []>, TB;
def VMXON : I<0xC7, MRM6m, (outs), (ins i64mem:$vmxon),