test(asm): seed the riscv64 and loong64 assemble fuzz targets

Assisted-by: GLM 5.3
2026-10-07 13:51:02 +02:00
1 parent b9dfb48d79
commit 965b33e5b0
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+// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
+// SPDX-License-Identifier: BSD-3-Clause
+
+// Seed corpus for FuzzAssembleRISCV64: branches over their offset range, the
+// jumps and calls, the system instructions, the atomics with the LR/SC pair,
+// the FP arithmetic, compare, conversion and fused multiply-add families in
+// every width including quad.
+
+#include "textflag.h"
+
+TEXT ·branches(SB), NOSPLIT, $0
+	BEQ  X5, X6, b1
+	BNE  X5, X6, b2
+	BLT  X5, X6, b1
+	BGE  X5, X6, b2
+	BLTU X5, X6, b1
+	BGEU X5, X6, b2
+	BGT  X6, X5, b1
+	BLE  X6, X5, b2
+	BGTU X6, X5, b1
+	BLEU X6, X5, b2
+
+b1:
+	ADDI $1, X5, X5
+
+b2:
+	ADDI $-1, X6, X6
+	BEQ  X5, X6, b1
+	RET
+
+TEXT ·farBranch(SB), NOSPLIT, $0
+	BEQ   X5, X6, far
+	SLTI  $2047, X5, X6
+	BEQ   X5, X6, far
+
+far:
+	SLTIU $2047, X5, X6
+	BGE   X5, X6, far
+	RET
+
+TEXT ·jumps(SB), NOSPLIT, $0
+	JAL  X1, j1
+
+j1:
+	JALR X0, (X1)
+	JALR X1, 0(X5)
+	JMP  j2
+
+j2:
+	JMP  (X5)
+	CALL (X5)
+	JMP  -3(PC)
+	CALL runtime·morestack_noctxt(SB)
+	RET
+
+TEXT ·system(SB), NOSPLIT, $0
+	FENCE
+	FENCE.TSO
+	PAUSE
+	ECALL
+	EBREAK
+	RET
+
+TEXT ·atomics(SB), NOSPLIT, $0
+	AMOSWAPW X5, (X6), X7
+	AMOSWAPD X5, (X6), X7
+	AMOADDW  X5, (X6), X7
+	AMOADDD  X5, (X6), X7
+	AMOANDW  X5, (X6), X7
+	AMOORW   X5, (X6), X7
+	AMOXORW  X5, (X6), X7
+	AMOMINW  X5, (X6), X7
+	AMOMAXW  X5, (X6), X7
+	AMOMINUW X5, (X6), X7
+	AMOMAXUW X5, (X6), X7
+	AMOMIND  X5, (X6), X7
+	AMOMAXD  X5, (X6), X7
+	AMOMINUD X5, (X6), X7
+	AMOMAXUD X5, (X6), X7
+	LRW      (X6), X7
+	LRD      (X6), X7
+	SCW      X5, (X6), X7
+	SCD      X5, (X6), X7
+	RET
+
+TEXT ·fpArith(SB), NOSPLIT, $0
+	FADDS  F1, F2, F3
+	FSUBS  F1, F2, F3
+	FMULS  F1, F2, F3
+	FDIVS  F1, F2, F3
+	FADDD  F1, F2, F3
+	FSUBD  F1, F2, F3
+	FMULD  F1, F2, F3
+	FDIVD  F1, F2, F3
+	FADDQ  F1, F2, F3
+	FSUBQ  F1, F2, F3
+	FMULQ  F1, F2, F3
+	FDIVQ  F1, F2, F3
+	FSQRTS F1, F2
+	FSQRTD F1, F2
+	FSQRTQ F1, F2
+	FMINS  F1, F2, F3
+	FMAXS  F1, F2, F3
+	FMIND  F1, F2, F3
+	FMAXD  F1, F2, F3
+	FMINQ  F1, F2, F3
+	FMAXQ  F1, F2, F3
+	RET
+
+TEXT ·fpFma(SB), NOSPLIT, $0
+	FMADDS  F1, F2, F3, F4
+	FMSUBS  F1, F2, F3, F4
+	FNMSUBS F1, F2, F3, F4
+	FNMADDS F1, F2, F3, F4
+	FMADDD  F1, F2, F3, F4
+	FMSUBD  F1, F2, F3, F4
+	FNMSUBD F1, F2, F3, F4
+	FNMADDD F1, F2, F3, F4
+	FMADDQ  F1, F2, F3, F4
+	FMSUBQ  F1, F2, F3, F4
+	FNMSUBQ F1, F2, F3, F4
+	FNMADDQ F1, F2, F3, F4
+	RET
+
+TEXT ·fpCvt(SB), NOSPLIT, $0
+	FCVTWS  F1, X5
+	FCVTWUS F1, X5
+	FCVTLS  F1, X5
+	FCVTLUS F1, X5
+	FCVTWD  F1, X5
+	FCVTWUD F1, X5
+	FCVTLD  F1, X5
+	FCVTLUD F1, X5
+	FCVTSW  X5, F1
+	FCVTSWU X5, F1
+	FCVTSL  X5, F1
+	FCVTSLU X5, F1
+	FCVTDW  X5, F1
+	FCVTDWU X5, F1
+	FCVTDL  X5, F1
+	FCVTDLU X5, F1
+	FCVTSD  F1, F2
+	FCVTDS  F1, F2
+	FCVTSQ  F1, F2
+	FCVTDQ  F1, F2
+	FCVTQS  F1, F2
+	FCVTQD  F1, F2
+	FCVTWQ  F1, X5
+	FCVTLQ  F1, X5
+	FCVTQW  X5, F1
+	FCVTQL  X5, F1
+	FCLASSS F1, X5
+	FCLASSD F1, X5
+	FCLASSQ F1, X5
+	FMVXD   F1, X5
+	FMVDX   X5, F1
+	FMVXW   F1, X5
+	FMVWX   X5, F1
+	RET
+
+TEXT ·fpSign(SB), NOSPLIT, $0
+	FSGNJS  F1, F0, F2
+	FSGNJNS F1, F0, F2
+	FSGNJXS F1, F0, F2
+	FSGNJD  F1, F0, F2
+	FSGNJND F1, F0, F2
+	FSGNJXD F1, F0, F2
+	FLTS    F1, F2, X5
+	FLES    F1, F2, X5
+	FEQS    F1, F2, X5
+	FLTD    F1, F2, X5
+	FLED    F1, F2, X5
+	FEQD    F1, F2, X5
+	FLTQ    F1, F2, X5
+	FLEQ    F1, F2, X5
+	FEQQ    F1, F2, X5
+	RET