diff options
Diffstat (limited to 'contrib/llvm-project/llvm/lib/Target/X86/X86InstrFormats.td')
| -rw-r--r-- | contrib/llvm-project/llvm/lib/Target/X86/X86InstrFormats.td | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/X86/X86InstrFormats.td b/contrib/llvm-project/llvm/lib/Target/X86/X86InstrFormats.td index d7752e656b55..686b19fc0a6c 100644 --- a/contrib/llvm-project/llvm/lib/Target/X86/X86InstrFormats.td +++ b/contrib/llvm-project/llvm/lib/Target/X86/X86InstrFormats.td @@ -216,6 +216,7 @@ class T8XS : T8 { Prefix OpPrefix = XS; } class TAPS : TA { Prefix OpPrefix = PS; } class TAPD : TA { Prefix OpPrefix = PD; } class TAXD : TA { Prefix OpPrefix = XD; } +class TAXS : TA { Prefix OpPrefix = XS; } class VEX { Encoding OpEnc = EncVEX; } class VEX_W { bit HasVEX_W = 1; } class VEX_WIG { bit IgnoresVEX_W = 1; } @@ -263,6 +264,9 @@ class NotMemoryFoldable { bit isMemoryFoldable = 0; } // Prevent EVEX->VEX conversion from considering this instruction. class NotEVEX2VEXConvertible { bit notEVEX2VEXConvertible = 1; } +// Force the instruction to use VEX encoding. +class ExplicitVEXPrefix { bit ExplicitVEXPrefix = 1; } + class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins, string AsmStr, Domain d = GenericDomain> : Instruction { @@ -347,6 +351,7 @@ class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins, bit isMemoryFoldable = 1; // Is it allowed to memory fold/unfold this instruction? bit notEVEX2VEXConvertible = 0; // Prevent EVEX->VEX conversion. + bit ExplicitVEXPrefix = 0; // Force the instruction to use VEX encoding. // TSFlags layout should be kept in sync with X86BaseInfo.h. let TSFlags{6-0} = FormBits; @@ -375,6 +380,7 @@ class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins, let TSFlags{51-45} = CD8_Scale; let TSFlags{52} = hasEVEX_RC; let TSFlags{53} = hasNoTrackPrefix; + let TSFlags{54} = ExplicitVEXPrefix; } class PseudoI<dag oops, dag iops, list<dag> pattern> |