diff options
Diffstat (limited to '')
| -rw-r--r-- | test/codegen/memcombine.go | 666 |
1 files changed, 666 insertions, 0 deletions
diff --git a/test/codegen/memcombine.go b/test/codegen/memcombine.go new file mode 100644 index 0000000..6ad9514 --- /dev/null +++ b/test/codegen/memcombine.go @@ -0,0 +1,666 @@ +// 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 + +import ( + "encoding/binary" + "runtime" +) + +var sink64 uint64 +var sink32 uint32 +var sink16 uint16 + +// ------------- // +// Loading // +// ------------- // + +func load_le64(b []byte) { + // amd64:`MOVQ\s\(.*\),`,-`MOV[BWL]\t[^$]`,-`OR` + // s390x:`MOVDBR\s\(.*\),` + // arm64:`MOVD\s\(R[0-9]+\),`,-`MOV[BHW]` + // ppc64le:`MOVD\s`,-`MOV[BHW]Z` + sink64 = binary.LittleEndian.Uint64(b) +} + +func load_le64_idx(b []byte, idx int) { + // amd64:`MOVQ\s\(.*\)\(.*\*1\),`,-`MOV[BWL]\t[^$]`,-`OR` + // s390x:`MOVDBR\s\(.*\)\(.*\*1\),` + // arm64:`MOVD\s\(R[0-9]+\)\(R[0-9]+\),`,-`MOV[BHW]` + // ppc64le:`MOVD\s`,-`MOV[BHW]Z\s` + sink64 = binary.LittleEndian.Uint64(b[idx:]) +} + +func load_le32(b []byte) { + // amd64:`MOVL\s\(.*\),`,-`MOV[BW]`,-`OR` + // 386:`MOVL\s\(.*\),`,-`MOV[BW]`,-`OR` + // s390x:`MOVWBR\s\(.*\),` + // arm64:`MOVWU\s\(R[0-9]+\),`,-`MOV[BH]` + // ppc64le:`MOVWZ\s`,-`MOV[BH]Z\s` + sink32 = binary.LittleEndian.Uint32(b) +} + +func load_le32_idx(b []byte, idx int) { + // amd64:`MOVL\s\(.*\)\(.*\*1\),`,-`MOV[BW]`,-`OR` + // 386:`MOVL\s\(.*\)\(.*\*1\),`,-`MOV[BW]`,-`OR` + // s390x:`MOVWBR\s\(.*\)\(.*\*1\),` + // arm64:`MOVWU\s\(R[0-9]+\)\(R[0-9]+\),`,-`MOV[BH]` + // ppc64le:`MOVWZ\s`,-`MOV[BH]Z\s` + sink32 = binary.LittleEndian.Uint32(b[idx:]) +} + +func load_le16(b []byte) { + // amd64:`MOVWLZX\s\(.*\),`,-`MOVB`,-`OR` + // ppc64le:`MOVHZ\s`,-`MOVBZ` + // arm64:`MOVHU\s\(R[0-9]+\),`,-`MOVB` + // s390x:`MOVHBR\s\(.*\),` + sink16 = binary.LittleEndian.Uint16(b) +} + +func load_le16_idx(b []byte, idx int) { + // amd64:`MOVWLZX\s\(.*\),`,-`MOVB`,-`OR` + // ppc64le:`MOVHZ\s`,-`MOVBZ` + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+\),`,-`MOVB` + // s390x:`MOVHBR\s\(.*\)\(.*\*1\),` + sink16 = binary.LittleEndian.Uint16(b[idx:]) +} + +func load_be64(b []byte) { + // amd64:`BSWAPQ`,-`MOV[BWL]\t[^$]`,-`OR` + // s390x:`MOVD\s\(.*\),` + // arm64:`REV`,`MOVD\s\(R[0-9]+\),`,-`MOV[BHW]`,-`REVW`,-`REV16W` + // ppc64le:`MOVDBR`,-`MOV[BHW]Z` + sink64 = binary.BigEndian.Uint64(b) +} + +func load_be64_idx(b []byte, idx int) { + // amd64:`BSWAPQ`,-`MOV[BWL]\t[^$]`,-`OR` + // s390x:`MOVD\s\(.*\)\(.*\*1\),` + // arm64:`REV`,`MOVD\s\(R[0-9]+\)\(R[0-9]+\),`,-`MOV[WHB]`,-`REVW`,-`REV16W` + // ppc64le:`MOVDBR`,-`MOV[BHW]Z` + sink64 = binary.BigEndian.Uint64(b[idx:]) +} + +func load_be32(b []byte) { + // amd64:`BSWAPL`,-`MOV[BW]`,-`OR` + // s390x:`MOVWZ\s\(.*\),` + // arm64:`REVW`,`MOVWU\s\(R[0-9]+\),`,-`MOV[BH]`,-`REV16W` + // ppc64le:`MOVWBR`,-`MOV[BH]Z` + sink32 = binary.BigEndian.Uint32(b) +} + +func load_be32_idx(b []byte, idx int) { + // amd64:`BSWAPL`,-`MOV[BW]`,-`OR` + // s390x:`MOVWZ\s\(.*\)\(.*\*1\),` + // arm64:`REVW`,`MOVWU\s\(R[0-9]+\)\(R[0-9]+\),`,-`MOV[HB]`,-`REV16W` + // ppc64le:`MOVWBR`,-`MOV[BH]Z` + sink32 = binary.BigEndian.Uint32(b[idx:]) +} + +func load_be16(b []byte) { + // amd64:`ROLW\s\$8`,-`MOVB`,-`OR` + // arm64:`REV16W`,`MOVHU\s\(R[0-9]+\),`,-`MOVB` + // ppc64le:`MOVHBR` + // s390x:`MOVHZ\s\(.*\),`,-`OR`,-`ORW`,-`SLD`,-`SLW` + sink16 = binary.BigEndian.Uint16(b) +} + +func load_be16_idx(b []byte, idx int) { + // amd64:`ROLW\s\$8`,-`MOVB`,-`OR` + // arm64:`REV16W`,`MOVHU\s\(R[0-9]+\)\(R[0-9]+\),`,-`MOVB` + // ppc64le:`MOVHBR` + // s390x:`MOVHZ\s\(.*\)\(.*\*1\),`,-`OR`,-`ORW`,-`SLD`,-`SLW` + sink16 = binary.BigEndian.Uint16(b[idx:]) +} + +func load_le_byte2_uint16(s []byte) uint16 { + // arm64:`MOVHU\t\(R[0-9]+\)`,-`ORR`,-`MOVB` + // 386:`MOVWLZX\s\([A-Z]+\)`,-`MOVB`,-`OR` + // amd64:`MOVWLZX\s\([A-Z]+\)`,-`MOVB`,-`OR` + // ppc64le:`MOVHZ\t\(R[0-9]+\)`,-`MOVBZ` + return uint16(s[0]) | uint16(s[1])<<8 +} + +func load_le_byte2_uint16_inv(s []byte) uint16 { + // arm64:`MOVHU\t\(R[0-9]+\)`,-`ORR`,-`MOVB` + // 386:`MOVWLZX\s\([A-Z]+\)`,-`MOVB`,-`OR` + // amd64:`MOVWLZX\s\([A-Z]+\)`,-`MOVB`,-`OR` + // ppc64le:`MOVHZ\t\(R[0-9]+\)`,-`MOVDZ` + return uint16(s[1])<<8 | uint16(s[0]) +} + +func load_le_byte4_uint32(s []byte) uint32 { + // arm64:`MOVWU\t\(R[0-9]+\)`,-`ORR`,-`MOV[BH]` + // 386:`MOVL\s\([A-Z]+\)`,-`MOV[BW]`,-`OR` + // amd64:`MOVL\s\([A-Z]+\)`,-`MOV[BW]`,-`OR` + // ppc64le:`MOVWZ\t\(R[0-9]+\)`,-`MOV[BH]Z` + return uint32(s[0]) | uint32(s[1])<<8 | uint32(s[2])<<16 | uint32(s[3])<<24 +} + +func load_le_byte4_uint32_inv(s []byte) uint32 { + // arm64:`MOVWU\t\(R[0-9]+\)`,-`ORR`,-`MOV[BH]` + return uint32(s[3])<<24 | uint32(s[2])<<16 | uint32(s[1])<<8 | uint32(s[0]) +} + +func load_le_byte8_uint64(s []byte) uint64 { + // arm64:`MOVD\t\(R[0-9]+\)`,-`ORR`,-`MOV[BHW]` + // amd64:`MOVQ\s\([A-Z]+\),\s[A-Z]+`,-`MOV[BWL]\t[^$]`,-`OR` + // ppc64le:`MOVD\t\(R[0-9]+\)`,-`MOV[BHW]Z` + return uint64(s[0]) | uint64(s[1])<<8 | uint64(s[2])<<16 | uint64(s[3])<<24 | uint64(s[4])<<32 | uint64(s[5])<<40 | uint64(s[6])<<48 | uint64(s[7])<<56 +} + +func load_le_byte8_uint64_inv(s []byte) uint64 { + // arm64:`MOVD\t\(R[0-9]+\)`,-`ORR`,-`MOV[BHW]` + return uint64(s[7])<<56 | uint64(s[6])<<48 | uint64(s[5])<<40 | uint64(s[4])<<32 | uint64(s[3])<<24 | uint64(s[2])<<16 | uint64(s[1])<<8 | uint64(s[0]) +} + +func load_be_byte2_uint16(s []byte) uint16 { + // arm64:`MOVHU\t\(R[0-9]+\)`,`REV16W`,-`ORR`,-`MOVB` + // amd64:`MOVWLZX\s\([A-Z]+\)`,`ROLW`,-`MOVB`,-`OR` + // ppc64le:`MOVHBR\t\(R[0-9]+\)`,-`MOVBZ` + return uint16(s[0])<<8 | uint16(s[1]) +} + +func load_be_byte2_uint16_inv(s []byte) uint16 { + // arm64:`MOVHU\t\(R[0-9]+\)`,`REV16W`,-`ORR`,-`MOVB` + // amd64:`MOVWLZX\s\([A-Z]+\)`,`ROLW`,-`MOVB`,-`OR` + // ppc64le:`MOVHBR\t\(R[0-9]+\)`,-`MOVBZ` + return uint16(s[1]) | uint16(s[0])<<8 +} + +func load_be_byte4_uint32(s []byte) uint32 { + // arm64:`MOVWU\t\(R[0-9]+\)`,`REVW`,-`ORR`,-`REV16W`,-`MOV[BH]` + return uint32(s[0])<<24 | uint32(s[1])<<16 | uint32(s[2])<<8 | uint32(s[3]) +} + +func load_be_byte4_uint32_inv(s []byte) uint32 { + // arm64:`MOVWU\t\(R[0-9]+\)`,`REVW`,-`ORR`,-`REV16W`,-`MOV[BH]` + // amd64:`MOVL\s\([A-Z]+\)`,`BSWAPL`,-`MOV[BW]`,-`OR` + return uint32(s[3]) | uint32(s[2])<<8 | uint32(s[1])<<16 | uint32(s[0])<<24 +} + +func load_be_byte8_uint64(s []byte) uint64 { + // arm64:`MOVD\t\(R[0-9]+\)`,`REV`,-`ORR`,-`REVW`,-`REV16W`,-`MOV[BHW]` + // ppc64le:`MOVDBR\t\(R[0-9]+\)`,-`MOV[BHW]Z` + return uint64(s[0])<<56 | uint64(s[1])<<48 | uint64(s[2])<<40 | uint64(s[3])<<32 | uint64(s[4])<<24 | uint64(s[5])<<16 | uint64(s[6])<<8 | uint64(s[7]) +} + +func load_be_byte8_uint64_inv(s []byte) uint64 { + // arm64:`MOVD\t\(R[0-9]+\)`,`REV`,-`ORR`,-`REVW`,-`REV16W`,-`MOV[BHW]` + // amd64:`MOVQ\s\([A-Z]+\),\s[A-Z]+`,`BSWAPQ`,-`MOV[BWL]\t[^$]`,-`OR` + // ppc64le:`MOVDBR\t\(R[0-9]+\)`,-`MOV[BHW]Z` + return uint64(s[7]) | uint64(s[6])<<8 | uint64(s[5])<<16 | uint64(s[4])<<24 | uint64(s[3])<<32 | uint64(s[2])<<40 | uint64(s[1])<<48 | uint64(s[0])<<56 +} + +func load_le_byte2_uint16_idx(s []byte, idx int) uint16 { + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+\)`,-`ORR`,-`MOVB` + // 386:`MOVWLZX\s\([A-Z]+\)\([A-Z]+`,-`ORL`,-`MOVB` + // amd64:`MOVWLZX\s\([A-Z]+\)\([A-Z]+`,-`MOVB`,-`OR` + return uint16(s[idx]) | uint16(s[idx+1])<<8 +} + +func load_le_byte2_uint16_idx_inv(s []byte, idx int) uint16 { + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+\)`,-`ORR`,-`MOVB` + // 386:`MOVWLZX\s\([A-Z]+\)\([A-Z]+`,-`ORL`,-`MOVB` + // amd64:`MOVWLZX\s\([A-Z]+\)\([A-Z]+`,-`MOVB`,-`OR` + return uint16(s[idx+1])<<8 | uint16(s[idx]) +} + +func load_le_byte4_uint32_idx(s []byte, idx int) uint32 { + // arm64:`MOVWU\s\(R[0-9]+\)\(R[0-9]+\)`,-`ORR`,-`MOV[BH]` + // amd64:`MOVL\s\([A-Z]+\)\([A-Z]+`,-`MOV[BW]`,-`OR` + return uint32(s[idx]) | uint32(s[idx+1])<<8 | uint32(s[idx+2])<<16 | uint32(s[idx+3])<<24 +} + +func load_le_byte4_uint32_idx_inv(s []byte, idx int) uint32 { + // arm64:`MOVWU\s\(R[0-9]+\)\(R[0-9]+\)`,-`ORR`,-`MOV[BH]` + return uint32(s[idx+3])<<24 | uint32(s[idx+2])<<16 | uint32(s[idx+1])<<8 | uint32(s[idx]) +} + +func load_le_byte8_uint64_idx(s []byte, idx int) uint64 { + // arm64:`MOVD\s\(R[0-9]+\)\(R[0-9]+\)`,-`ORR`,-`MOV[BHW]` + // amd64:`MOVQ\s\([A-Z]+\)\([A-Z]+`,-`MOV[BWL]`,-`OR` + return uint64(s[idx]) | uint64(s[idx+1])<<8 | uint64(s[idx+2])<<16 | uint64(s[idx+3])<<24 | uint64(s[idx+4])<<32 | uint64(s[idx+5])<<40 | uint64(s[idx+6])<<48 | uint64(s[idx+7])<<56 +} + +func load_le_byte8_uint64_idx_inv(s []byte, idx int) uint64 { + // arm64:`MOVD\s\(R[0-9]+\)\(R[0-9]+\)`,-`ORR`,-`MOV[BHW]` + return uint64(s[idx+7])<<56 | uint64(s[idx+6])<<48 | uint64(s[idx+5])<<40 | uint64(s[idx+4])<<32 | uint64(s[idx+3])<<24 | uint64(s[idx+2])<<16 | uint64(s[idx+1])<<8 | uint64(s[idx]) +} + +func load_be_byte2_uint16_idx(s []byte, idx int) uint16 { + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+\)`,`REV16W`,-`ORR`,-`MOVB` + // amd64:`MOVWLZX\s\([A-Z]+\)\([A-Z]+`,-`MOVB`,-`OR` + return uint16(s[idx])<<8 | uint16(s[idx+1]) +} + +func load_be_byte2_uint16_idx_inv(s []byte, idx int) uint16 { + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+\)`,`REV16W`,-`ORR`,-`MOVB` + // amd64:`MOVWLZX\s\([A-Z]+\)\([A-Z]+`,-`MOVB`,-`OR` + return uint16(s[idx+1]) | uint16(s[idx])<<8 +} + +func load_be_byte4_uint32_idx(s []byte, idx int) uint32 { + // arm64:`MOVWU\s\(R[0-9]+\)\(R[0-9]+\)`,`REVW`,-`ORR`,-`MOV[BH]`,-`REV16W` + return uint32(s[idx])<<24 | uint32(s[idx+1])<<16 | uint32(s[idx+2])<<8 | uint32(s[idx+3]) +} + +func load_be_byte8_uint64_idx(s []byte, idx int) uint64 { + // arm64:`MOVD\s\(R[0-9]+\)\(R[0-9]+\)`,`REV`,-`ORR`,-`MOV[BHW]`,-`REVW`,-`REV16W` + return uint64(s[idx])<<56 | uint64(s[idx+1])<<48 | uint64(s[idx+2])<<40 | uint64(s[idx+3])<<32 | uint64(s[idx+4])<<24 | uint64(s[idx+5])<<16 | uint64(s[idx+6])<<8 | uint64(s[idx+7]) +} + +func load_le_byte2_uint16_idx2(s []byte, idx int) uint16 { + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+<<1\)`,-`ORR`,-`MOVB` + return uint16(s[idx<<1]) | uint16(s[(idx<<1)+1])<<8 +} + +func load_le_byte2_uint16_idx2_inv(s []byte, idx int) uint16 { + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+<<1\)`,-`ORR`,-`MOVB` + return uint16(s[(idx<<1)+1])<<8 | uint16(s[idx<<1]) +} + +func load_le_byte4_uint32_idx4(s []byte, idx int) uint32 { + // arm64:`MOVWU\s\(R[0-9]+\)\(R[0-9]+<<2\)`,-`ORR`,-`MOV[BH]` + return uint32(s[idx<<2]) | uint32(s[(idx<<2)+1])<<8 | uint32(s[(idx<<2)+2])<<16 | uint32(s[(idx<<2)+3])<<24 +} + +func load_le_byte4_uint32_idx4_inv(s []byte, idx int) uint32 { + // arm64:`MOVWU\s\(R[0-9]+\)\(R[0-9]+<<2\)`,-`ORR`,-`MOV[BH]` + return uint32(s[(idx<<2)+3])<<24 | uint32(s[(idx<<2)+2])<<16 | uint32(s[(idx<<2)+1])<<8 | uint32(s[idx<<2]) +} + +func load_le_byte8_uint64_idx8(s []byte, idx int) uint64 { + // arm64:`MOVD\s\(R[0-9]+\)\(R[0-9]+<<3\)`,-`ORR`,-`MOV[BHW]` + return uint64(s[idx<<3]) | uint64(s[(idx<<3)+1])<<8 | uint64(s[(idx<<3)+2])<<16 | uint64(s[(idx<<3)+3])<<24 | uint64(s[(idx<<3)+4])<<32 | uint64(s[(idx<<3)+5])<<40 | uint64(s[(idx<<3)+6])<<48 | uint64(s[(idx<<3)+7])<<56 +} + +func load_le_byte8_uint64_idx8_inv(s []byte, idx int) uint64 { + // arm64:`MOVD\s\(R[0-9]+\)\(R[0-9]+<<3\)`,-`ORR`,-`MOV[BHW]` + return uint64(s[(idx<<3)+7])<<56 | uint64(s[(idx<<3)+6])<<48 | uint64(s[(idx<<3)+5])<<40 | uint64(s[(idx<<3)+4])<<32 | uint64(s[(idx<<3)+3])<<24 | uint64(s[(idx<<3)+2])<<16 | uint64(s[(idx<<3)+1])<<8 | uint64(s[idx<<3]) +} + +func load_be_byte2_uint16_idx2(s []byte, idx int) uint16 { + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+<<1\)`,`REV16W`,-`ORR`,-`MOVB` + return uint16(s[idx<<1])<<8 | uint16(s[(idx<<1)+1]) +} + +func load_be_byte2_uint16_idx2_inv(s []byte, idx int) uint16 { + // arm64:`MOVHU\s\(R[0-9]+\)\(R[0-9]+<<1\)`,`REV16W`,-`ORR`,-`MOVB` + return uint16(s[(idx<<1)+1]) | uint16(s[idx<<1])<<8 +} + +func load_be_byte4_uint32_idx4(s []byte, idx int) uint32 { + // arm64:`MOVWU\s\(R[0-9]+\)\(R[0-9]+<<2\)`,`REVW`,-`ORR`,-`MOV[BH]`,-`REV16W` + return uint32(s[idx<<2])<<24 | uint32(s[(idx<<2)+1])<<16 | uint32(s[(idx<<2)+2])<<8 | uint32(s[(idx<<2)+3]) +} + +func load_be_byte8_uint64_idx8(s []byte, idx int) uint64 { + // arm64:`MOVD\s\(R[0-9]+\)\(R[0-9]+<<3\)`,`REV`,-`ORR`,-`MOV[BHW]`,-`REVW`,-`REV16W` + return uint64(s[idx<<3])<<56 | uint64(s[(idx<<3)+1])<<48 | uint64(s[(idx<<3)+2])<<40 | uint64(s[(idx<<3)+3])<<32 | uint64(s[(idx<<3)+4])<<24 | uint64(s[(idx<<3)+5])<<16 | uint64(s[(idx<<3)+6])<<8 | uint64(s[(idx<<3)+7]) +} + +// Check load combining across function calls. + +func fcall_byte(a, b byte) (byte, byte) { + return fcall_byte(fcall_byte(a, b)) // amd64:`MOVW` +} + +func fcall_uint16(a, b uint16) (uint16, uint16) { + return fcall_uint16(fcall_uint16(a, b)) // amd64:`MOVL` +} + +func fcall_uint32(a, b uint32) (uint32, uint32) { + return fcall_uint32(fcall_uint32(a, b)) // amd64:`MOVQ` +} + +// We want to merge load+op in the first function, but not in the +// second. See Issue 19595. +func load_op_merge(p, q *int) { + x := *p // amd64:`ADDQ\t\(` + *q += x // The combined nilcheck and load would normally have this line number, but we want that combined operation to have the line number of the nil check instead (see #33724). +} +func load_op_no_merge(p, q *int) { + x := *p + for i := 0; i < 10; i++ { + *q += x // amd64:`ADDQ\t[A-Z]` + } +} + +// Make sure offsets are folded into loads and stores. +func offsets_fold(_, a [20]byte) (b [20]byte) { + // arm64:`MOVD\t""\.a\+[0-9]+\(FP\), R[0-9]+`,`MOVD\tR[0-9]+, ""\.b\+[0-9]+\(FP\)` + b = a + return +} + +// Make sure we don't put pointers in SSE registers across safe +// points. + +func safe_point(p, q *[2]*int) { + a, b := p[0], p[1] // amd64:-`MOVUPS` + runtime.GC() + q[0], q[1] = a, b // amd64:-`MOVUPS` +} + +// ------------- // +// Storing // +// ------------- // + +func store_le64(b []byte) { + // amd64:`MOVQ\s.*\(.*\)$`,-`SHR.` + // arm64:`MOVD`,-`MOV[WBH]` + // ppc64le:`MOVD\s`,-`MOV[BHW]\s` + // s390x:`MOVDBR\s.*\(.*\)$` + binary.LittleEndian.PutUint64(b, sink64) +} + +func store_le64_idx(b []byte, idx int) { + // amd64:`MOVQ\s.*\(.*\)\(.*\*1\)$`,-`SHR.` + // arm64:`MOVD\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOV[BHW]` + // ppc64le:`MOVD\s`,-`MOV[BHW]\s` + // s390x:`MOVDBR\s.*\(.*\)\(.*\*1\)$` + binary.LittleEndian.PutUint64(b[idx:], sink64) +} + +func store_le32(b []byte) { + // amd64:`MOVL\s` + // arm64:`MOVW`,-`MOV[BH]` + // ppc64le:`MOVW\s` + // s390x:`MOVWBR\s.*\(.*\)$` + binary.LittleEndian.PutUint32(b, sink32) +} + +func store_le32_idx(b []byte, idx int) { + // amd64:`MOVL\s` + // arm64:`MOVW\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOV[BH]` + // ppc64le:`MOVW\s` + // s390x:`MOVWBR\s.*\(.*\)\(.*\*1\)$` + binary.LittleEndian.PutUint32(b[idx:], sink32) +} + +func store_le16(b []byte) { + // amd64:`MOVW\s` + // arm64:`MOVH`,-`MOVB` + // ppc64le:`MOVH\s` + // s390x:`MOVHBR\s.*\(.*\)$` + binary.LittleEndian.PutUint16(b, sink16) +} + +func store_le16_idx(b []byte, idx int) { + // amd64:`MOVW\s` + // arm64:`MOVH\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOVB` + // ppc64le:`MOVH\s` + // s390x:`MOVHBR\s.*\(.*\)\(.*\*1\)$` + binary.LittleEndian.PutUint16(b[idx:], sink16) +} + +func store_be64(b []byte) { + // amd64:`BSWAPQ`,-`SHR.` + // arm64:`MOVD`,`REV`,-`MOV[WBH]`,-`REVW`,-`REV16W` + // ppc64le:`MOVDBR` + // s390x:`MOVD\s.*\(.*\)$`,-`SRW\s`,-`SRD\s` + binary.BigEndian.PutUint64(b, sink64) +} + +func store_be64_idx(b []byte, idx int) { + // amd64:`BSWAPQ`,-`SHR.` + // arm64:`REV`,`MOVD\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOV[BHW]`,-`REV16W`,-`REVW` + // ppc64le:`MOVDBR` + // s390x:`MOVD\s.*\(.*\)\(.*\*1\)$`,-`SRW\s`,-`SRD\s` + binary.BigEndian.PutUint64(b[idx:], sink64) +} + +func store_be32(b []byte) { + // amd64:`BSWAPL`,-`SHR.` + // arm64:`MOVW`,`REVW`,-`MOV[BH]`,-`REV16W` + // ppc64le:`MOVWBR` + // s390x:`MOVW\s.*\(.*\)$`,-`SRW\s`,-`SRD\s` + binary.BigEndian.PutUint32(b, sink32) +} + +func store_be32_idx(b []byte, idx int) { + // amd64:`BSWAPL`,-`SHR.` + // arm64:`REVW`,`MOVW\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOV[BH]`,-`REV16W` + // ppc64le:`MOVWBR` + // s390x:`MOVW\s.*\(.*\)\(.*\*1\)$`,-`SRW\s`,-`SRD\s` + binary.BigEndian.PutUint32(b[idx:], sink32) +} + +func store_be16(b []byte) { + // amd64:`ROLW\s\$8`,-`SHR.` + // arm64:`MOVH`,`REV16W`,-`MOVB` + // ppc64le:`MOVHBR` + // s390x:`MOVH\s.*\(.*\)$`,-`SRW\s`,-`SRD\s` + binary.BigEndian.PutUint16(b, sink16) +} + +func store_be16_idx(b []byte, idx int) { + // amd64:`ROLW\s\$8`,-`SHR.` + // arm64:`MOVH\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,`REV16W`,-`MOVB` + // ppc64le:`MOVHBR` + // s390x:`MOVH\s.*\(.*\)\(.*\*1\)$`,-`SRW\s`,-`SRD\s` + binary.BigEndian.PutUint16(b[idx:], sink16) +} + +func store_le_byte_2(b []byte, val uint16) { + _ = b[2] + // arm64:`MOVH\sR[0-9]+,\s1\(R[0-9]+\)`,-`MOVB` + // 386:`MOVW\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB` + // amd64:`MOVW\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB` + b[1], b[2] = byte(val), byte(val>>8) +} + +func store_le_byte_2_inv(b []byte, val uint16) { + _ = b[2] + // 386:`MOVW\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB` + // amd64:`MOVW\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB` + b[2], b[1] = byte(val>>8), byte(val) +} + +func store_le_byte_4(b []byte, val uint32) { + _ = b[4] + // arm64:`MOVW\sR[0-9]+,\s1\(R[0-9]+\)`,-`MOVB`,-`MOVH` + // 386:`MOVL\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB`,-`MOVW` + // amd64:`MOVL\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB`,-`MOVW` + b[1], b[2], b[3], b[4] = byte(val), byte(val>>8), byte(val>>16), byte(val>>24) +} + +func store_le_byte_8(b []byte, val uint64) { + _ = b[8] + // arm64:`MOVD\sR[0-9]+,\s1\(R[0-9]+\)`,-`MOVB`,-`MOVH`,-`MOVW` + // amd64:`MOVQ\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB`,-`MOVW`,-`MOVL` + b[1], b[2], b[3], b[4], b[5], b[6], b[7], b[8] = byte(val), byte(val>>8), byte(val>>16), byte(val>>24), byte(val>>32), byte(val>>40), byte(val>>48), byte(val>>56) +} + +func store_be_byte_2(b []byte, val uint16) { + _ = b[2] + // arm64:`REV16W`,`MOVH\sR[0-9]+,\s1\(R[0-9]+\)`,-`MOVB` + // amd64:`MOVW\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB` + b[1], b[2] = byte(val>>8), byte(val) +} + +func store_be_byte_4(b []byte, val uint32) { + _ = b[4] + // arm64:`REVW`,`MOVW\sR[0-9]+,\s1\(R[0-9]+\)`,-`MOVB`,-`MOVH`,-`REV16W` + // amd64:`MOVL\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB`,-`MOVW` + b[1], b[2], b[3], b[4] = byte(val>>24), byte(val>>16), byte(val>>8), byte(val) +} + +func store_be_byte_8(b []byte, val uint64) { + _ = b[8] + // arm64:`REV`,`MOVD\sR[0-9]+,\s1\(R[0-9]+\)`,-`MOVB`,-`MOVH`,-`MOVW`,-`REV16W`,-`REVW` + // amd64:`MOVQ\s[A-Z]+,\s1\([A-Z]+\)`,-`MOVB`,-`MOVW`,-`MOVL` + b[1], b[2], b[3], b[4], b[5], b[6], b[7], b[8] = byte(val>>56), byte(val>>48), byte(val>>40), byte(val>>32), byte(val>>24), byte(val>>16), byte(val>>8), byte(val) +} + +func store_le_byte_2_idx(b []byte, idx int, val uint16) { + _, _ = b[idx+0], b[idx+1] + // arm64:`MOVH\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOVB` + // 386:`MOVW\s[A-Z]+,\s\([A-Z]+\)\([A-Z]+`,-`MOVB` + b[idx+1], b[idx+0] = byte(val>>8), byte(val) +} + +func store_le_byte_2_idx_inv(b []byte, idx int, val uint16) { + _, _ = b[idx+0], b[idx+1] + // 386:`MOVW\s[A-Z]+,\s\([A-Z]+\)\([A-Z]+`,-`MOVB` + b[idx+0], b[idx+1] = byte(val), byte(val>>8) +} + +func store_le_byte_4_idx(b []byte, idx int, val uint32) { + _, _, _, _ = b[idx+0], b[idx+1], b[idx+2], b[idx+3] + // arm64:`MOVW\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOVB`,-`MOVH` + b[idx+3], b[idx+2], b[idx+1], b[idx+0] = byte(val>>24), byte(val>>16), byte(val>>8), byte(val) +} + +func store_be_byte_2_idx(b []byte, idx int, val uint16) { + _, _ = b[idx+0], b[idx+1] + // arm64:`REV16W`,`MOVH\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOVB` + b[idx+0], b[idx+1] = byte(val>>8), byte(val) +} + +func store_be_byte_4_idx(b []byte, idx int, val uint32) { + _, _, _, _ = b[idx+0], b[idx+1], b[idx+2], b[idx+3] + // arm64:`REVW`,`MOVW\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOVB`,-`MOVH`,-`REV16W` + b[idx+0], b[idx+1], b[idx+2], b[idx+3] = byte(val>>24), byte(val>>16), byte(val>>8), byte(val) +} + +func store_be_byte_2_idx2(b []byte, idx int, val uint16) { + _, _ = b[(idx<<1)+0], b[(idx<<1)+1] + // arm64:`REV16W`,`MOVH\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+<<1\)`,-`MOVB` + b[(idx<<1)+0], b[(idx<<1)+1] = byte(val>>8), byte(val) +} + +func store_le_byte_2_idx2(b []byte, idx int, val uint16) { + _, _ = b[(idx<<1)+0], b[(idx<<1)+1] + // arm64:`MOVH\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+<<1\)`,-`MOVB` + b[(idx<<1)+1], b[(idx<<1)+0] = byte(val>>8), byte(val) +} + +func store_be_byte_4_idx4(b []byte, idx int, val uint32) { + _, _, _, _ = b[(idx<<2)+0], b[(idx<<2)+1], b[(idx<<2)+2], b[(idx<<2)+3] + // arm64:`REVW`,`MOVW\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+<<2\)`,-`MOVB`,-`MOVH`,-`REV16W` + b[(idx<<2)+0], b[(idx<<2)+1], b[(idx<<2)+2], b[(idx<<2)+3] = byte(val>>24), byte(val>>16), byte(val>>8), byte(val) +} + +func store_le_byte_4_idx4_inv(b []byte, idx int, val uint32) { + _, _, _, _ = b[(idx<<2)+0], b[(idx<<2)+1], b[(idx<<2)+2], b[(idx<<2)+3] + // arm64:`MOVW\sR[0-9]+,\s\(R[0-9]+\)\(R[0-9]+<<2\)`,-`MOVB`,-`MOVH` + b[(idx<<2)+3], b[(idx<<2)+2], b[(idx<<2)+1], b[(idx<<2)+0] = byte(val>>24), byte(val>>16), byte(val>>8), byte(val) +} + +// ------------- // +// Zeroing // +// ------------- // + +// Check that zero stores are combined into larger stores + +func zero_byte_2(b1, b2 []byte) { + // bounds checks to guarantee safety of writes below + _, _ = b1[1], b2[1] + // arm64:"MOVH\tZR",-"MOVB" + // amd64:`MOVW\s[$]0,\s\([A-Z]+\)` + // 386:`MOVW\s[$]0,\s\([A-Z]+\)` + b1[0], b1[1] = 0, 0 + // arm64:"MOVH\tZR",-"MOVB" + // 386:`MOVW\s[$]0,\s\([A-Z]+\)` + // amd64:`MOVW\s[$]0,\s\([A-Z]+\)` + b2[1], b2[0] = 0, 0 +} + +func zero_byte_4(b1, b2 []byte) { + _, _ = b1[3], b2[3] + // arm64:"MOVW\tZR",-"MOVB",-"MOVH" + // amd64:`MOVL\s[$]0,\s\([A-Z]+\)` + // 386:`MOVL\s[$]0,\s\([A-Z]+\)` + b1[0], b1[1], b1[2], b1[3] = 0, 0, 0, 0 + // arm64:"MOVW\tZR",-"MOVB",-"MOVH" + b2[2], b2[3], b2[1], b2[0] = 0, 0, 0, 0 +} + +func zero_byte_8(b []byte) { + _ = b[7] + b[0], b[1], b[2], b[3] = 0, 0, 0, 0 + b[4], b[5], b[6], b[7] = 0, 0, 0, 0 // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW" +} + +func zero_byte_16(b []byte) { + _ = b[15] + b[0], b[1], b[2], b[3] = 0, 0, 0, 0 + b[4], b[5], b[6], b[7] = 0, 0, 0, 0 + b[8], b[9], b[10], b[11] = 0, 0, 0, 0 + b[12], b[13], b[14], b[15] = 0, 0, 0, 0 // arm64:"STP",-"MOVB",-"MOVH",-"MOVW" +} + +func zero_byte_30(a *[30]byte) { + *a = [30]byte{} // arm64:"STP",-"MOVB",-"MOVH",-"MOVW" +} + +func zero_byte_39(a *[39]byte) { + *a = [39]byte{} // arm64:"MOVD",-"MOVB",-"MOVH",-"MOVW" +} + +func zero_byte_2_idx(b []byte, idx int) { + _, _ = b[idx+0], b[idx+1] + // arm64:`MOVH\sZR,\s\(R[0-9]+\)\(R[0-9]+\)`,-`MOVB` + b[idx+0], b[idx+1] = 0, 0 +} + +func zero_byte_2_idx2(b []byte, idx int) { + _, _ = b[(idx<<1)+0], b[(idx<<1)+1] + // arm64:`MOVH\sZR,\s\(R[0-9]+\)\(R[0-9]+<<1\)`,-`MOVB` + b[(idx<<1)+0], b[(idx<<1)+1] = 0, 0 +} + +func zero_uint16_2(h1, h2 []uint16) { + _, _ = h1[1], h2[1] + // arm64:"MOVW\tZR",-"MOVB",-"MOVH" + // amd64:`MOVL\s[$]0,\s\([A-Z]+\)` + // 386:`MOVL\s[$]0,\s\([A-Z]+\)` + h1[0], h1[1] = 0, 0 + // arm64:"MOVW\tZR",-"MOVB",-"MOVH" + // amd64:`MOVL\s[$]0,\s\([A-Z]+\)` + // 386:`MOVL\s[$]0,\s\([A-Z]+\)` + h2[1], h2[0] = 0, 0 +} + +func zero_uint16_4(h1, h2 []uint16) { + _, _ = h1[3], h2[3] + // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW" + // amd64:`MOVQ\s[$]0,\s\([A-Z]+\)` + h1[0], h1[1], h1[2], h1[3] = 0, 0, 0, 0 + // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW" + h2[2], h2[3], h2[1], h2[0] = 0, 0, 0, 0 +} + +func zero_uint16_8(h []uint16) { + _ = h[7] + h[0], h[1], h[2], h[3] = 0, 0, 0, 0 + h[4], h[5], h[6], h[7] = 0, 0, 0, 0 // arm64:"STP",-"MOVB",-"MOVH" +} + +func zero_uint32_2(w1, w2 []uint32) { + _, _ = w1[1], w2[1] + // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW" + // amd64:`MOVQ\s[$]0,\s\([A-Z]+\)` + w1[0], w1[1] = 0, 0 + // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW" + // amd64:`MOVQ\s[$]0,\s\([A-Z]+\)` + w2[1], w2[0] = 0, 0 +} + +func zero_uint32_4(w1, w2 []uint32) { + _, _ = w1[3], w2[3] + w1[0], w1[1], w1[2], w1[3] = 0, 0, 0, 0 // arm64:"STP",-"MOVB",-"MOVH" + w2[2], w2[3], w2[1], w2[0] = 0, 0, 0, 0 // arm64:"STP",-"MOVB",-"MOVH" +} + +func zero_uint64_2(d1, d2 []uint64) { + _, _ = d1[1], d2[1] + d1[0], d1[1] = 0, 0 // arm64:"STP",-"MOVB",-"MOVH" + d2[1], d2[0] = 0, 0 // arm64:"STP",-"MOVB",-"MOVH" +} |