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https://github.com/golang/go
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870cfe6484
Change-Id: I33f5b5051e5f75aa264ec656926223c5a3c09c1b Reviewed-on: https://go-review.googlesource.com/c/go/+/167498 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by: Matt Layher <mdlayher@gmail.com>
254 lines
5.6 KiB
Go
254 lines
5.6 KiB
Go
// asmcheck
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package codegen
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var sval64 [8]int64
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var sval32 [8]int32
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var sval16 [8]int16
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var sval8 [8]int8
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var val64 [8]uint64
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var val32 [8]uint32
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var val16 [8]uint16
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var val8 [8]uint8
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// ----------------------------- //
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// avoid zero/sign extensions //
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// ----------------------------- //
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func set16(x8 int8, u8 uint8, y8 int8, z8 uint8) {
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// Truncate not needed, load does sign/zero extend
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// ppc64:-"MOVB\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVB\tR\\d+,\\sR\\d+"
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sval16[0] = int16(x8)
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// ppc64:-"MOVBZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+"
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val16[0] = uint16(u8)
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// AND not needed due to size
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// ppc64:-"ANDCC"
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// ppc64le:-"ANDCC"
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sval16[1] = 255 & int16(x8+y8)
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// ppc64:-"ANDCC"
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// ppc64le:-"ANDCC"
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val16[1] = 255 & uint16(u8+z8)
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}
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func shiftidx(x8 int8, u8 uint8, x16 int16, u16 uint16, x32 int32, u32 uint32) {
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// ppc64:-"MOVB\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVB\tR\\d+,\\sR\\d+"
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sval16[0] = int16(val16[x8>>1])
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// ppc64:-"MOVBZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+"
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val16[0] = uint16(sval16[u8>>2])
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// ppc64:-"MOVH\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVH\tR\\d+,\\sR\\d+"
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sval16[1] = int16(val16[x16>>1])
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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val16[1] = uint16(sval16[u16>>2])
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}
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func setnox(x8 int8, u8 uint8, y8 int8, z8 uint8, x16 int16, u16 uint16, x32 int32, u32 uint32) {
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// Truncate not needed due to sign/zero extension on load
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// ppc64:-"MOVB\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVB\tR\\d+,\\sR\\d+"
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sval16[0] = int16(x8)
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// ppc64:-"MOVBZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+"
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val16[0] = uint16(u8)
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// AND not needed due to size
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// ppc64:-"ANDCC"
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// ppc64le:-"ANDCC"
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sval16[1] = 255 & int16(x8+y8)
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// ppc64:-"ANDCC"
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// ppc64le:-"ANDCC"
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val16[1] = 255 & uint16(u8+z8)
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// ppc64:-"MOVB\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVB\tR\\d+,\\sR\\d+"
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sval32[0] = int32(x8)
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// ppc64:-"MOVH\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVH\tR\\d+,\\sR\\d+"
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sval32[1] = int32(x16)
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//ppc64:-"MOVBZ\tR\\d+,\\sR\\d+"
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//ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+"
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val32[0] = uint32(u8)
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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val32[1] = uint32(u16)
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// ppc64:-"MOVB\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVB\tR\\d+,\\sR\\d+"
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sval64[0] = int64(x8)
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// ppc64:-"MOVH\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVH\tR\\d+,\\sR\\d+"
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sval64[1] = int64(x16)
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// ppc64:-"MOVW\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVW\tR\\d+,\\sR\\d+"
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sval64[2] = int64(x32)
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//ppc64:-"MOVBZ\tR\\d+,\\sR\\d+"
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//ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+"
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val64[0] = uint64(u8)
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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val64[1] = uint64(u16)
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// ppc64:-"MOVWZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+"
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val64[2] = uint64(u32)
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}
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func cmp16(x8 int8, u8 uint8, x32 int32, u32 uint32, x64 int64, u64 uint64) bool {
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// ppc64:-"MOVB\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVB\tR\\d+,\\sR\\d+"
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if int16(x8) == sval16[0] {
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return true
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}
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// ppc64:-"MOVBZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+"
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if uint16(u8) == val16[0] {
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return true
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}
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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if uint16(u32>>16) == val16[0] {
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return true
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}
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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if uint16(u64>>48) == val16[0] {
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return true
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}
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// Verify the truncates are using the correct sign.
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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if int16(x32) == sval16[0] {
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return true
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}
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// ppc64:-"MOVH\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVH\tR\\d+,\\sR\\d+"
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if uint16(u32) == val16[0] {
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return true
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}
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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if int16(x64) == sval16[0] {
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return true
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}
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// ppc64:-"MOVH\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVH\tR\\d+,\\sR\\d+"
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if uint16(u64) == val16[0] {
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return true
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}
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return false
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}
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func cmp32(x8 int8, u8 uint8, x16 int16, u16 uint16, x64 int64, u64 uint64) bool {
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// ppc64:-"MOVB\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVB\tR\\d+,\\sR\\d+"
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if int32(x8) == sval32[0] {
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return true
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}
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// ppc64:-"MOVBZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+"
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if uint32(u8) == val32[0] {
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return true
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}
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// ppc64:-"MOVH\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVH\tR\\d+,\\sR\\d+"
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if int32(x16) == sval32[0] {
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return true
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}
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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if uint32(u16) == val32[0] {
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return true
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}
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// Verify the truncates are using the correct sign.
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// ppc64:-"MOVWZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+"
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if int32(x64) == sval32[0] {
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return true
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}
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// ppc64:-"MOVW\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVW\tR\\d+,\\sR\\d+"
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if uint32(u64) == val32[0] {
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return true
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}
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return false
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}
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func cmp64(x8 int8, u8 uint8, x16 int16, u16 uint16, x32 int32, u32 uint32) bool {
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// ppc64:-"MOVB\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVB\tR\\d+,\\sR\\d+"
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if int64(x8) == sval64[0] {
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return true
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}
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// ppc64:-"MOVBZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+"
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if uint64(u8) == val64[0] {
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return true
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}
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// ppc64:-"MOVH\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVH\tR\\d+,\\sR\\d+"
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if int64(x16) == sval64[0] {
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return true
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}
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// ppc64:-"MOVHZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+"
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if uint64(u16) == val64[0] {
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return true
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}
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// ppc64:-"MOVW\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVW\tR\\d+,\\sR\\d+"
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if int64(x32) == sval64[0] {
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return true
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}
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// ppc64:-"MOVWZ\tR\\d+,\\sR\\d+"
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// ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+"
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if uint64(u32) == val64[0] {
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return true
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}
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return false
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}
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