Introduce a new technique for merging BasicBlock with Instruction sentinel by superpo...

[oota-llvm.git] / lib / Target / X86 / X86InstrFormats.td

diff --git a/lib/Target/X86/X86InstrFormats.td b/lib/Target/X86/X86InstrFormats.td
index 33f38e3b4e2a4a67ecf44b51e681c85f36654927..eeed5bd27ff3ca106d4dddcca0874c23ffd6e5de 100644 (file)
--- a/lib/Target/X86/X86InstrFormats.td
+++ b/lib/Target/X86/X86InstrFormats.td
@@ -63,6 +63,8 @@ class OpSize { bit hasOpSizePrefix = 1; }
 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; }
@@ -104,6 +106,7 @@ class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins,
   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>
@@ -157,16 +160,20 @@ class PSIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
 
 // 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,