+// These are the replaceable SSE instructions. Some of these have Int variants
+// that we don't include here. We don't want to replace instructions selected
+// by intrinsics.
+static const unsigned ReplaceableInstrs[][3] = {
+ //PackedSingle PackedDouble PackedInt
+ { X86::MOVAPSmr, X86::MOVAPDmr, X86::MOVDQAmr },
+ { X86::MOVAPSrm, X86::MOVAPDrm, X86::MOVDQArm },
+ { X86::MOVAPSrr, X86::MOVAPDrr, X86::MOVDQArr },
+ { X86::MOVUPSmr, X86::MOVUPDmr, X86::MOVDQUmr },
+ { X86::MOVUPSrm, X86::MOVUPDrm, X86::MOVDQUrm },
+ { X86::MOVNTPSmr, X86::MOVNTPDmr, X86::MOVNTDQmr },
+ { X86::ANDNPSrm, X86::ANDNPDrm, X86::PANDNrm },
+ { X86::ANDNPSrr, X86::ANDNPDrr, X86::PANDNrr },
+ { X86::ANDPSrm, X86::ANDPDrm, X86::PANDrm },
+ { X86::ANDPSrr, X86::ANDPDrr, X86::PANDrr },
+ { X86::ORPSrm, X86::ORPDrm, X86::PORrm },
+ { X86::ORPSrr, X86::ORPDrr, X86::PORrr },
+ { X86::V_SET0PS, X86::V_SET0PD, X86::V_SET0PI },
+ { X86::XORPSrm, X86::XORPDrm, X86::PXORrm },
+ { X86::XORPSrr, X86::XORPDrr, X86::PXORrr },
+ // AVX 128-bit support
+ { X86::VMOVAPSmr, X86::VMOVAPDmr, X86::VMOVDQAmr },
+ { X86::VMOVAPSrm, X86::VMOVAPDrm, X86::VMOVDQArm },
+ { X86::VMOVAPSrr, X86::VMOVAPDrr, X86::VMOVDQArr },
+ { X86::VMOVUPSmr, X86::VMOVUPDmr, X86::VMOVDQUmr },
+ { X86::VMOVUPSrm, X86::VMOVUPDrm, X86::VMOVDQUrm },
+ { X86::VMOVNTPSmr, X86::VMOVNTPDmr, X86::VMOVNTDQmr },
+ { X86::VANDNPSrm, X86::VANDNPDrm, X86::VPANDNrm },
+ { X86::VANDNPSrr, X86::VANDNPDrr, X86::VPANDNrr },
+ { X86::VANDPSrm, X86::VANDPDrm, X86::VPANDrm },
+ { X86::VANDPSrr, X86::VANDPDrr, X86::VPANDrr },
+ { X86::VORPSrm, X86::VORPDrm, X86::VPORrm },
+ { X86::VORPSrr, X86::VORPDrr, X86::VPORrr },
+ { X86::AVX_SET0PS, X86::AVX_SET0PD, X86::AVX_SET0PI },
+ { X86::VXORPSrm, X86::VXORPDrm, X86::VPXORrm },
+ { X86::VXORPSrr, X86::VXORPDrr, X86::VPXORrr },
+};
+
+// FIXME: Some shuffle and unpack instructions have equivalents in different
+// domains, but they require a bit more work than just switching opcodes.
+
+static const unsigned *lookup(unsigned opcode, unsigned domain) {
+ for (unsigned i = 0, e = array_lengthof(ReplaceableInstrs); i != e; ++i)
+ if (ReplaceableInstrs[i][domain-1] == opcode)
+ return ReplaceableInstrs[i];
+ return 0;