From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- src/internal/bytealg/count_riscv64.s | 47 ++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/internal/bytealg/count_riscv64.s (limited to 'src/internal/bytealg/count_riscv64.s') diff --git a/src/internal/bytealg/count_riscv64.s b/src/internal/bytealg/count_riscv64.s new file mode 100644 index 0000000..d123cbd --- /dev/null +++ b/src/internal/bytealg/count_riscv64.s @@ -0,0 +1,47 @@ +// Copyright 2020 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. + +#include "go_asm.h" +#include "textflag.h" + +TEXT ·Count(SB),NOSPLIT,$0-40 + // X10 = b_base + // X11 = b_len + // X12 = b_cap (unused) + // X13 = byte to count (want in X12) + AND $0xff, X13, X12 + MOV ZERO, X14 // count + ADD X10, X11 // end + +loop: + BEQ X10, X11, done + MOVBU (X10), X15 + ADD $1, X10 + BNE X12, X15, loop + ADD $1, X14 + JMP loop + +done: + MOV X14, X10 + RET + +TEXT ·CountString(SB),NOSPLIT,$0-32 + // X10 = s_base + // X11 = s_len + // X12 = byte to count + AND $0xff, X12 + MOV ZERO, X14 // count + ADD X10, X11 // end + +loop: + BEQ X10, X11, done + MOVBU (X10), X15 + ADD $1, X10 + BNE X12, X15, loop + ADD $1, X14 + JMP loop + +done: + MOV X14, X10 + RET -- cgit v1.2.3