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cmd/compile: switch to typed auxint for arm64 TBZ/TBNZ block

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This CL changes the arm64 TBZ/TBNZ block from using Aux to using
a (typed) AuxInt. The corresponding rules have also been changed
to be typed.

Passes

  GOARCH=arm64 gotip build -toolexec 'toolstash -cmp' -a std

Change-Id: I98d0cd2a791948f1db13259c17fb1b9b2807a043
Reviewed-on: https://go-review.googlesource.com/c/go/+/230839
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Alberto Donizetti 2020-04-30 11:04:02 +02:00
parent 9ed0fb42e3
commit 666c9aedd4
7 changed files with 61 additions and 56 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/cmd/compile/internal/ssa/gen/ARM64Ops.go
View file

@ -691,12 +691,12 @@ func init() {
{name: "ULE", controls: 1},
{name: "UGT", controls: 1},
{name: "UGE", controls: 1},
{name: "Z", controls: 1}, // Control == 0 (take a register instead of flags)
{name: "NZ", controls: 1}, // Control != 0
{name: "ZW", controls: 1}, // Control == 0, 32-bit
{name: "NZW", controls: 1}, // Control != 0, 32-bit
{name: "TBZ", controls: 1}, // Control & (1 << Aux.(int64)) == 0
{name: "TBNZ", controls: 1}, // Control & (1 << Aux.(int64)) != 0
{name: "Z", controls: 1}, // Control == 0 (take a register instead of flags)
{name: "NZ", controls: 1}, // Control != 0
{name: "ZW", controls: 1}, // Control == 0, 32-bit
{name: "NZW", controls: 1}, // Control != 0, 32-bit
{name: "TBZ", controls: 1, aux: "Int64"}, // Control & (1 << AuxInt) == 0
{name: "TBNZ", controls: 1, aux: "Int64"}, // Control & (1 << AuxInt) != 0
{name: "FLT", controls: 1},
{name: "FLE", controls: 1},
{name: "FGT", controls: 1},