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cmd/compile/internal/ssa: add Op.UsesScratch method

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Passes toolstash/buildall.

Change-Id: I928a2ef39fb10091957f35bb3f1564498f6f1b83
Reviewed-on: https://go-review.googlesource.com/30312
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Matthew Dempsky 2016-10-04 13:00:21 -07:00
parent 59320c396e
commit c28f55c502
7 changed files with 71 additions and 53 deletions
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4
src/cmd/compile/internal/ssa/gen/PPC64Ops.go
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@ -209,8 +209,8 @@ func init() {
// There are optimizations that should apply -- (Xi2f64 (MOVWload (not-ADD-ptr+offset) ) ) could use
// the word-load instructions. (Xi2f64 (MOVDload ptr )) can be (FMOVDload ptr)
{name: "Xf2i64", argLength: 1, reg: fpgp, typ: "Int64"}, // move 64 bits of F register into G register
{name: "Xi2f64", argLength: 1, reg: gpfp, typ: "Float64"}, // move 64 bits of G register into F register
{name: "Xf2i64", argLength: 1, reg: fpgp, typ: "Int64", usesScratch: true}, // move 64 bits of F register into G register
{name: "Xi2f64", argLength: 1, reg: gpfp, typ: "Float64", usesScratch: true}, // move 64 bits of G register into F register
{name: "AND", argLength: 2, reg: gp21, asm: "AND", commutative: true}, // arg0&arg1
{name: "ANDN", argLength: 2, reg: gp21, asm: "ANDN"}, // arg0&^arg1