| // asmcheck |
| |
| // Copyright 2018 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 |
| |
| var sval64 [8]int64 |
| var sval32 [8]int32 |
| var sval16 [8]int16 |
| var sval8 [8]int8 |
| var val64 [8]uint64 |
| var val32 [8]uint32 |
| var val16 [8]uint16 |
| var val8 [8]uint8 |
| |
| // ----------------------------- // |
| // avoid zero/sign extensions // |
| // ----------------------------- // |
| |
| func set16(x8 int8, u8 uint8, y8 int8, z8 uint8) { |
| // Truncate not needed, load does sign/zero extend |
| // ppc64:-"MOVB\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVB\tR\\d+,\\sR\\d+" |
| sval16[0] = int16(x8) |
| |
| // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" |
| val16[0] = uint16(u8) |
| |
| // AND not needed due to size |
| // ppc64:-"ANDCC" |
| // ppc64le:-"ANDCC" |
| sval16[1] = 255 & int16(x8+y8) |
| |
| // ppc64:-"ANDCC" |
| // ppc64le:-"ANDCC" |
| val16[1] = 255 & uint16(u8+z8) |
| |
| } |
| func shiftidx(x8 int8, u8 uint8, x16 int16, u16 uint16, x32 int32, u32 uint32) { |
| // ppc64:-"MOVB\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVB\tR\\d+,\\sR\\d+" |
| sval16[0] = int16(val16[x8>>1]) |
| |
| // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" |
| val16[0] = uint16(sval16[u8>>2]) |
| |
| // ppc64:-"MOVH\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" |
| sval16[1] = int16(val16[x16>>1]) |
| |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| val16[1] = uint16(sval16[u16>>2]) |
| |
| } |
| |
| func setnox(x8 int8, u8 uint8, y8 int8, z8 uint8, x16 int16, u16 uint16, x32 int32, u32 uint32) { |
| // Truncate not needed due to sign/zero extension on load |
| |
| // ppc64:-"MOVB\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVB\tR\\d+,\\sR\\d+" |
| sval16[0] = int16(x8) |
| |
| // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" |
| val16[0] = uint16(u8) |
| |
| // AND not needed due to size |
| // ppc64:-"ANDCC" |
| // ppc64le:-"ANDCC" |
| sval16[1] = 255 & int16(x8+y8) |
| |
| // ppc64:-"ANDCC" |
| // ppc64le:-"ANDCC" |
| val16[1] = 255 & uint16(u8+z8) |
| |
| // ppc64:-"MOVB\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVB\tR\\d+,\\sR\\d+" |
| sval32[0] = int32(x8) |
| |
| // ppc64:-"MOVH\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" |
| sval32[1] = int32(x16) |
| |
| //ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" |
| //ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" |
| val32[0] = uint32(u8) |
| |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| val32[1] = uint32(u16) |
| |
| // ppc64:-"MOVB\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVB\tR\\d+,\\sR\\d+" |
| sval64[0] = int64(x8) |
| |
| // ppc64:-"MOVH\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" |
| sval64[1] = int64(x16) |
| |
| // ppc64:-"MOVW\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVW\tR\\d+,\\sR\\d+" |
| sval64[2] = int64(x32) |
| |
| //ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" |
| //ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" |
| val64[0] = uint64(u8) |
| |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| val64[1] = uint64(u16) |
| |
| // ppc64:-"MOVWZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+" |
| val64[2] = uint64(u32) |
| } |
| |
| func cmp16(x8 int8, u8 uint8, x32 int32, u32 uint32, x64 int64, u64 uint64) bool { |
| // ppc64:-"MOVB\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVB\tR\\d+,\\sR\\d+" |
| if int16(x8) == sval16[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" |
| if uint16(u8) == val16[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| if uint16(u32>>16) == val16[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| if uint16(u64>>48) == val16[0] { |
| return true |
| } |
| |
| // Verify the truncates are using the correct sign. |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| if int16(x32) == sval16[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVH\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" |
| if uint16(u32) == val16[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| if int16(x64) == sval16[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVH\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" |
| if uint16(u64) == val16[0] { |
| return true |
| } |
| |
| return false |
| } |
| |
| func cmp32(x8 int8, u8 uint8, x16 int16, u16 uint16, x64 int64, u64 uint64) bool { |
| // ppc64:-"MOVB\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVB\tR\\d+,\\sR\\d+" |
| if int32(x8) == sval32[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" |
| if uint32(u8) == val32[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVH\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" |
| if int32(x16) == sval32[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| if uint32(u16) == val32[0] { |
| return true |
| } |
| |
| // Verify the truncates are using the correct sign. |
| // ppc64:-"MOVWZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+" |
| if int32(x64) == sval32[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVW\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVW\tR\\d+,\\sR\\d+" |
| if uint32(u64) == val32[0] { |
| return true |
| } |
| |
| return false |
| } |
| |
| func cmp64(x8 int8, u8 uint8, x16 int16, u16 uint16, x32 int32, u32 uint32) bool { |
| // ppc64:-"MOVB\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVB\tR\\d+,\\sR\\d+" |
| if int64(x8) == sval64[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" |
| if uint64(u8) == val64[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVH\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" |
| if int64(x16) == sval64[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" |
| if uint64(u16) == val64[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVW\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVW\tR\\d+,\\sR\\d+" |
| if int64(x32) == sval64[0] { |
| return true |
| } |
| |
| // ppc64:-"MOVWZ\tR\\d+,\\sR\\d+" |
| // ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+" |
| if uint64(u32) == val64[0] { |
| return true |
| } |
| return false |
| } |
