go/test/codegen/constants.go
Russ Cox 915c1839fe test/codegen: simplify asmcheck pattern matching
Separate patterns in asmcheck by spaces instead of commas.
Many patterns end in comma (like "MOV [$]123,") so separating
patterns by comma is not great; they're already quoted, so spaces are fine.

Also replace all tabs in the assembly lines with spaces before matching.
Finally, replace \$ or \\$ with [$] as the matching idiom.
The effect of all these is to make the patterns look like:

  	   // amd64:"BSFQ" "ORQ [$]256"

instead of the old:

  	   // amd64:"BSFQ","ORQ\t\\$256"

Update all tests as well.

Change-Id: Ia39febe5d7f67ba115846422789e11b185d5c807
Reviewed-on: https://go-review.googlesource.com/c/go/+/716060
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
2025-10-29 13:55:00 -07:00

35 lines
1.1 KiB
Go

// asmcheck
// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package codegen
// A uint16 or sint16 constant shifted left.
func shifted16BitConstants() (out [64]uint64) {
// ppc64x: "MOVD [$]8193,", "SLD [$]27,"
out[0] = 0x0000010008000000
// ppc64x: "MOVD [$]-32767", "SLD [$]26,"
out[1] = 0xFFFFFE0004000000
// ppc64x: "MOVD [$]-1", "SLD [$]48,"
out[2] = 0xFFFF000000000000
// ppc64x: "MOVD [$]65535", "SLD [$]44,"
out[3] = 0x0FFFF00000000000
return
}
// A contiguous set of 1 bits, potentially wrapping.
func contiguousMaskConstants() (out [64]uint64) {
// ppc64x: "MOVD [$]-1", "RLDC R[0-9]+, [$]44, [$]63,"
out[0] = 0xFFFFF00000000001
// ppc64x: "MOVD [$]-1", "RLDC R[0-9]+, [$]43, [$]63,"
out[1] = 0xFFFFF80000000001
// ppc64x: "MOVD [$]-1", "RLDC R[0-9]+, [$]43, [$]4,"
out[2] = 0x0FFFF80000000000
// ppc64x/power8: "MOVD [$]-1", "RLDC R[0-9]+, [$]33, [$]63,"
// ppc64x/power9: "MOVD [$]-1", "RLDC R[0-9]+, [$]33, [$]63,"
// ppc64x/power10: "MOVD [$]-8589934591,"
out[3] = 0xFFFFFFFE00000001
return
}