Initial AVX support for some instructions. No patterns matched
yet, only assembly encoding support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105521 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/X86RecognizableInstr.cpp b/utils/TableGen/X86RecognizableInstr.cpp
index b7085ae..5fe2bfe 100644
--- a/utils/TableGen/X86RecognizableInstr.cpp
+++ b/utils/TableGen/X86RecognizableInstr.cpp
@@ -212,6 +212,7 @@
HasOpSizePrefix = Rec->getValueAsBit("hasOpSizePrefix");
HasREX_WPrefix = Rec->getValueAsBit("hasREX_WPrefix");
+ HasVEX_4VPrefix = Rec->getValueAsBit("hasVEX_4VPrefix");
HasLockPrefix = Rec->getValueAsBit("hasLockPrefix");
IsCodeGenOnly = Rec->getValueAsBit("isCodeGenOnly");
@@ -532,7 +533,12 @@
"Unexpected number of operands for MRMSrcRegFrm");
HANDLE_OPERAND(roRegister)
HANDLE_OPERAND(rmRegister)
- HANDLE_OPTIONAL(immediate)
+
+ if (HasVEX_4VPrefix)
+ // FIXME: encoding of registers in AVX is in 1's complement form.
+ HANDLE_OPTIONAL(rmRegister)
+ else
+ HANDLE_OPTIONAL(immediate)
break;
case X86Local::MRMSrcMem:
// Operand 1 is a register operand in the Reg/Opcode field.
diff --git a/utils/TableGen/X86RecognizableInstr.h b/utils/TableGen/X86RecognizableInstr.h
index 84374b0..db4d96d 100644
--- a/utils/TableGen/X86RecognizableInstr.h
+++ b/utils/TableGen/X86RecognizableInstr.h
@@ -52,6 +52,8 @@
bool HasOpSizePrefix;
/// The hasREX_WPrefix field from the record
bool HasREX_WPrefix;
+ /// The hasVEX_4VPrefix field from the record
+ bool HasVEX_4VPrefix;
/// The hasLockPrefix field from the record
bool HasLockPrefix;
/// The isCodeGenOnly filed from the record