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[X86] Add register use/def for wrmsr and rdmsr. 

llvm-svn: 228515
This commit is contained in:
Craig Topper 2015-02-07 23:36:51 +00:00
parent 1d472db8cc
commit e169c57188
1 changed files with 2 additions and 0 deletions
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2
llvm/lib/Target/X86/X86InstrSystem.td
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@ -438,7 +438,9 @@ def LLDT16m : I<0x00, MRM2m, (outs), (ins i16mem:$src),
//===----------------------------------------------------------------------===//
// Specialized register support
let SchedRW = [WriteSystem] in {
let Uses = [EAX, ECX, EDX] in
def WRMSR : I<0x30, RawFrm, (outs), (ins), "wrmsr", [], IIC_WRMSR>, TB;
let Defs = [EAX, EDX], Uses = [ECX] in
def RDMSR : I<0x32, RawFrm, (outs), (ins), "rdmsr", [], IIC_RDMSR>, TB;
let Defs = [RAX, RDX], Uses = [ECX] in