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josharianjosharian
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cmd/internal/obj: eliminate AMODE
AMODE appears to have been intended to allow a Prog to switch between 16 (!), 32, or 64 bit x86. It is unused anywhere in the tree. Passes toolstash-check -all. Updates golang#15756 Change-Id: Ic57b257cfe580f29dad81d97e4193bf3c330c598 Reviewed-on: https://go-review.googlesource.com/38445 Run-TryBot: Josh Bleecher Snyder <[email protected]> TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Dave Cheney <[email protected]> Reviewed-by: Cherry Zhang <[email protected]>
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3 files changed

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‎src/cmd/internal/obj/x86/a.out.go‎

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@@ -746,7 +746,6 @@ const (
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ARETFQ
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ASWAPGS
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AMODE
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ACRC32B
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ACRC32Q
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AIMUL3Q

‎src/cmd/internal/obj/x86/anames.go‎

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@@ -687,7 +687,6 @@ var Anames = []string{
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"RETFL",
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"RETFQ",
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"SWAPGS",
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"MODE",
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"CRC32B",
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"CRC32Q",
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"IMUL3Q",

‎src/cmd/internal/obj/x86/obj6.go‎

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@@ -79,17 +79,6 @@ func progedit(ctxt *obj.Link, p *obj.Prog) {
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}
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p.Mode = int8(ctxt.Mode)
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switch p.As {
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case AMODE:
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if p.From.Type == obj.TYPE_CONST || (p.From.Type == obj.TYPE_MEM && p.From.Reg == REG_NONE) {
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switch int(p.From.Offset) {
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case 16, 32, 64:
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ctxt.Mode = int(p.From.Offset)
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}
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}
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obj.Nopout(p)
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}
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// Thread-local storage references use the TLS pseudo-register.
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// As a register, TLS refers to the thread-local storage base, and it
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// can only be loaded into another register:

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