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000960
2008 Oct 17
2
[LLVMdev] MFENCE encoding
Hi,
I have a problem with creating a MFENCE on X86 with SSE
In X86InstrSSE.td, a MFENCE is
def MFENCE : I<0xAE, MRM6m, (outs), (ins),
"mfence", [(int_x86_sse2_mfence)]>, TB, Requires<
[HasSSE2]>;
In X86CodeEmitter.cpp in emitInstruction
case X86II::MRM6m: case X86II::MRM7m: {
intptr_t PCAdj = (CurOp+4 != NumOps) ?