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Added the LAR (load segment access rights)

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instructions to the Intel instruction tables.

llvm-svn: 82084
This commit is contained in:
Sean Callanan 2009-09-16 21:55:34 +00:00
parent a0ec1cbaa9
commit cb5724f556
2 changed files with 21 additions and 0 deletions
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8
lib/Target/X86/X86Instr64bit.td
View File

@ -1541,6 +1541,14 @@ def ATOMUMAX64: I<0, Pseudo, (outs GR64:$dst),(ins i64mem:$ptr, GR64:$val),
[(set GR64:$dst, (atomic_load_umax_64 addr:$ptr, GR64:$val))]>;
}
// Segmentation support instructions
// i16mem operand in LAR64rm and GR32 operand in LAR32rr is not a typo.
def LAR64rm : RI<0x02, MRMSrcMem, (outs GR64:$dst), (ins i16mem:$src),
"lar{q}\t{$src, $dst|$dst, $src}", []>, TB;
def LAR64rr : RI<0x02, MRMSrcReg, (outs GR64:$dst), (ins GR32:$src),
"lar{q}\t{$src, $dst|$dst, $src}", []>, TB;
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//===----------------------------------------------------------------------===//

13
lib/Target/X86/X86InstrInfo.td
View File

@ -3672,6 +3672,19 @@ def ATOMSWAP6432 : I<0, Pseudo, (outs GR32:$dst1, GR32:$dst2),
"#ATOMSWAP6432 PSEUDO!", []>;
}
// Segmentation support instructions.
def LAR16rm : I<0x02, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
"lar{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
def LAR16rr : I<0x02, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
"lar{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
// i16mem operand in LAR32rm and GR32 operand in LAR32rr is not a typo.
def LAR32rm : I<0x02, MRMSrcMem, (outs GR32:$dst), (ins i16mem:$src),
"lar{l}\t{$src, $dst|$dst, $src}", []>, TB;
def LAR32rr : I<0x02, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"lar{l}\t{$src, $dst|$dst, $src}", []>, TB;
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//===----------------------------------------------------------------------===//