class AdSize { bit hasAdSizePrefix = 1; }
class REX_W { bit hasREX_WPrefix = 1; }
class LOCK { bit hasLockPrefix = 1; }
+class SegFS { bits<2> SegOvrBits = 1; }
+class SegGS { bits<2> SegOvrBits = 2; }
class TB { bits<4> Prefix = 1; }
class REP { bits<4> Prefix = 2; }
class D8 { bits<4> Prefix = 3; }
class XS { bits<4> Prefix = 12; }
class T8 { bits<4> Prefix = 13; }
class TA { bits<4> Prefix = 14; }
+class TF { bits<4> Prefix = 15; }
class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins,
string AsmStr>
FPFormat FPForm; // What flavor of FP instruction is this?
bits<3> FPFormBits = 0;
bit hasLockPrefix = 0; // Does this inst have a 0xF0 prefix?
+ bits<2> SegOvrBits = 0; // Segment override prefix.
}
class I<bits<8> o, Format f, dag outs, dag ins, string asm, list<dag> pattern>
let Pattern = pattern;
}
+// Templates for instructions that use a 16- or 32-bit segmented address as
+// their only operand: lcall (FAR CALL) and ljmp (FAR JMP)
+//
+// Iseg16 - 16-bit segment selector, 16-bit offset
+// Iseg32 - 16-bit segment selector, 32-bit offset
+
+class Iseg16 <bits<8> o, Format f, dag outs, dag ins, string asm,
+ list<dag> pattern> : X86Inst<o, f, NoImm, outs, ins, asm> {
+ let Pattern = pattern;
+ let CodeSize = 3;
+}
+
+class Iseg32 <bits<8> o, Format f, dag outs, dag ins, string asm,
+ list<dag> pattern> : X86Inst<o, f, NoImm, outs, ins, asm> {
+ let Pattern = pattern;
+ let CodeSize = 3;
+}
+
// SSE1 Instruction Templates:
//
// SSI - SSE1 instructions with XS prefix.
// SSE2 Instruction Templates:
//
-// SDI - SSE2 instructions with XD prefix.
-// SDIi8 - SSE2 instructions with ImmT == Imm8 and XD prefix.
-// PDI - SSE2 instructions with TB and OpSize prefixes.
-// PDIi8 - SSE2 instructions with ImmT == Imm8 and TB and OpSize prefixes.
+// SDI - SSE2 instructions with XD prefix.
+// SDIi8 - SSE2 instructions with ImmT == Imm8 and XD prefix.
+// SSDIi8 - SSE2 instructions with ImmT == Imm8 and XS prefix.
+// PDI - SSE2 instructions with TB and OpSize prefixes.
+// PDIi8 - SSE2 instructions with ImmT == Imm8 and TB and OpSize prefixes.
class SDI<bits<8> o, Format F, dag outs, dag ins, string asm, list<dag> pattern>
: I<o, F, outs, ins, asm, pattern>, XD, Requires<[HasSSE2]>;
class SDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
list<dag> pattern>
: Ii8<o, F, outs, ins, asm, pattern>, XD, Requires<[HasSSE2]>;
+class SSDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
+ list<dag> pattern>
+ : Ii8<o, F, outs, ins, asm, pattern>, XS, Requires<[HasSSE2]>;
class PDI<bits<8> o, Format F, dag outs, dag ins, string asm, list<dag> pattern>
: I<o, F, outs, ins, asm, pattern>, TB, OpSize, Requires<[HasSSE2]>;
class PDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
list<dag> pattern>
: I<o, F, outs, ins, asm, pattern>, T8, Requires<[HasSSE42]>;
+// SS42FI - SSE 4.2 instructions with TF prefix.
+class SS42FI<bits<8> o, Format F, dag outs, dag ins, string asm,
+ list<dag> pattern>
+ : I<o, F, outs, ins, asm, pattern>, TF, Requires<[HasSSE42]>;
+
+// SS42AI = SSE 4.2 instructions with TA prefix
+class SS42AI<bits<8> o, Format F, dag outs, dag ins, string asm,
+ list<dag> pattern>
+ : I<o, F, outs, ins, asm, pattern>, TA, Requires<[HasSSE42]>;
+
// X86-64 Instruction templates...
//
: Ii8<o, F, outs, ins, asm, pattern>, XD, Requires<[HasMMX]>;
class MMXIS<bits<8> o, Format F, dag outs, dag ins, string asm, list<dag> pattern>
: Ii8<o, F, outs, ins, asm, pattern>, XS, Requires<[HasMMX]>;
-