105 lines
2.2 KiB
Go
105 lines
2.2 KiB
Go
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// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
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// SPDX-License-Identifier: BSD-3-Clause
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package asm
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import (
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"os"
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"path/filepath"
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"testing"
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)
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// TestRISCVBitManipDifferential proves the Zba, Zbb, Zbc and Zbs families
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// against the toolchain: the toolchain's own testdata spellings (every
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// operand form each section carries) assembled by gasm and by go tool asm
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// must agree byte for byte. The lines are the oracle's own, so a wrong
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// funct6, a swapped operand pair or a missed two-operand collapse names
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// itself through the first differing word.
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func TestRISCVBitManipDifferential(t *testing.T) {
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src := `#include "textflag.h"
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TEXT ·bitmanip(SB), NOSPLIT, $0
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ADDUW X10, X11, X12
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ADDUW X10, X11
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SH1ADD X11, X12, X13
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SH1ADD X11, X12
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SH1ADDUW X12, X13, X14
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SH1ADDUW X12, X13
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SH2ADD X13, X14, X15
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SH2ADD X13, X14
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SH2ADDUW X14, X15, X16
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SH2ADDUW X14, X15
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SH3ADD X15, X16, X17
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SH3ADD X15, X16
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SH3ADDUW X16, X17, X18
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SH3ADDUW X16, X17
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SLLIUW $31, X17, X18
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SLLIUW $63, X17
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SLLIUW $63, X17, X18
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SLLIUW $1, X18, X19
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ANDN X19, X20, X21
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ANDN X19, X20
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CLZ X20, X21
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CLZW X21, X22
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CPOP X22, X23
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CPOPW X23, X24
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CTZ X24, X25
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CTZW X25, X26
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MAX X26, X28, X29
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MAX X26, X28
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MAXU X28, X29, X30
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MAXU X28, X29
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MIN X29, X30, X5
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MIN X29, X30
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MINU X30, X5, X6
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MINU X30, X5
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ORN X6, X7, X8
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ORN X6, X7
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SEXTB X16, X17
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SEXTH X17, X18
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XNOR X18, X19, X20
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XNOR X18, X19
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ZEXTH X19, X20
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ROL X8, X9, X10
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ROL X8, X9
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ROLW X9, X10, X11
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ROLW X9, X10
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ROR X10, X11, X12
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ROR X10, X11
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ROR $63, X11
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RORI $63, X11, X12
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RORI $1, X12, X13
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RORIW $31, X13, X14
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RORIW $1, X14, X15
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RORW X15, X16, X17
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RORW X15, X16
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RORW $31, X13
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ORCB X5, X6
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REV8 X7, X8
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CLMUL X5, X6, X7
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CLMUL X5, X6
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CLMULH X5, X6, X7
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CLMULH X5, X6
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CLMULR X5, X6, X7
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CLMULR X5, X6
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BCLR X23, X24, X25
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BCLR $63, X24
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BCLRI $1, X25, X26
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BEXT X26, X28, X29
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BEXT $63, X28
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BEXTI $1, X29, X30
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BINV X30, X5, X6
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BINV $63, X6
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BINVI $1, X7, X8
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BSET X8, X9, X10
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BSET $63, X9
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BSETI $1, X10, X11
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RET
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`
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dir := t.TempDir()
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path := filepath.Join(dir, "bitmanip_riscv64.s")
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if err := os.WriteFile(path, []byte(src), 0o644); err != nil {
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t.Fatal(err)
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}
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assertRISCVDifferential(t, path, src, "bitmanip")
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}
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