• Damien Lespiau's avatar
    cmd/asm: enable MOVSD in the encoding end-to-end test · 23c5db9b
    Damien Lespiau authored
    MOVSD is properly handled but its encoding test wasn't enabled. Enable
    it.
    
    For reference this was found with a little tool I wrote [1] to explore
    which instructions are missing or not tested in the go obj package and
    assembler:
    
    "which SSE2 instructions aren't tested? And don't list instructions
    which can take MMX operands"
    
    $ x86db-gogen list --extension SSE2 --not-tested --not-mmx
    CLFLUSH mem           [m:  np 0f ae /7] WILLAMETTE,SSE2
    MOVSD   xmmreg,xmmreg [rm: f2 0f 10 /r] WILLAMETTE,SSE2
    MOVSD   xmmreg,xmmreg [mr: f2 0f 11 /r] WILLAMETTE,SSE2
    MOVSD   mem64,xmmreg  [mr: f2 0f 11 /r] WILLAMETTE,SSE2
    MOVSD   xmmreg,mem64  [rm: f2 0f 10 /r] WILLAMETTE,SSE2
    
    (CLFLUSH was introduced with SSE2, but has its own CPUID bit)
    
    [1] https://github.com/dlespiau/x86db
    
    Change-Id: Ic3af3028cb8d4f02e53fdebb9b30fb311f4ee454
    Reviewed-on: https://go-review.googlesource.com/42814Reviewed-by: 's avatarBrad Fitzpatrick <bradfitz@golang.org>
    Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
    TryBot-Result: Gobot Gobot <gobot@golang.org>
    23c5db9b
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