sviswa7

Should is_src_gpr be set to true for the additional following instructions as well: void Assembler::pextrd(Register dst, XMMRegister src, int imm8) void Assembler::pextrq(Register dst, XMMRegister src, int imm8) void Assembler::pextrb(Register dst,...

Also the following instruction is not handled for egprs: void Assembler::popq(Register dst)

It looks to me that the source and dest are reversed in the following instruction in call to simd_prefix_and_encode, perhaps that should be a separate PR: // Do we have...

SHA instructions (sha1rnds4, sha1nexte, sha1msg1, sha1msg2, sha256rnds2, sha256msg1, sha256msg2) needs to be encoded using EVEX encoding when egprs are in use.

> It looks to me that the source and dest are reversed in the following instruction in call to simd_prefix_and_encode, perhaps that should be a separate PR: // Do we...

@steveatgh Please also do a merge with master.