| // 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 | |
| } |