| // 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 following a load |
| // which has extended the value correctly. |
| // Note: No tests are done for int8 since |
| // an extra extension is usually needed due to |
| // no signed byte load. |
| |
| func set16(x8 int8, u8 *uint8, y8 int8, z8 uint8) { |
| // Truncate not needed, load does sign/zero extend |
| |
| // 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(u8 *uint8, x16 *int16, u16 *uint16) { |
| |
| // 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) { |
| |
| // 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:-"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:-"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(u8 *uint8, x32 *int32, u32 *uint32, x64 *int64, u64 *uint64) bool { |
| |
| // 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(u8 *uint8, x16 *int16, u16 *uint16, x64 *int64, u64 *uint64) bool { |
| |
| // 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(u8 *uint8, x16 *int16, u16 *uint16, x32 *int32, u32 *uint32) bool { |
| |
| // 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 |
| } |
