std::vector<MCInst> popFlagAndFinalize();
+ std::vector<MCInst> loadMXCSRAndFinalize(bool HasAVX);
+
private:
ConstantInliner &add(const MCInst &Inst) {
Instructions.push_back(Inst);
return std::move(Instructions);
}
+std::vector<MCInst> ConstantInliner::loadMXCSRAndFinalize(bool HasAVX) {
+ add(allocateStackSpace(4));
+ add(fillStackSpace(X86::MOV32mi, 0, 0x1f80)); // Mask all FP exceptions
+ add(MCInstBuilder(HasAVX ? X86::VLDMXCSR : X86::LDMXCSR)
+ // Address = ESP
+ .addReg(X86::RSP) // BaseReg
+ .addImm(1) // ScaleAmt
+ .addReg(0) // IndexReg
+ .addImm(0) // Disp
+ .addReg(0)); // Segment
+ return std::move(Instructions);
+}
+
void ConstantInliner::initStack(unsigned Bytes) {
assert(Constant_.getBitWidth() <= Bytes * 8 &&
"Value does not have the correct size");
}
if (Reg == X86::EFLAGS)
return CI.popFlagAndFinalize();
+ if (Reg == X86::MXCSR)
+ return CI.loadMXCSRAndFinalize(STI.getFeatureBits()[X86::FeatureAVX]);
return {}; // Not yet implemented.
}