From dbb6490749e2bb2a514a8a305b8fadc3495183e6 Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Sat, 27 Jun 2020 18:34:17 +0000 Subject: Vendor import of llvm-project branch release/10.x llvmorg-10.0.1-rc2-0-g77d76b71d7d. --- compiler-rt/lib/builtins/riscv/int_mul_impl.inc | 31 +++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 compiler-rt/lib/builtins/riscv/int_mul_impl.inc (limited to 'compiler-rt/lib/builtins/riscv/int_mul_impl.inc') diff --git a/compiler-rt/lib/builtins/riscv/int_mul_impl.inc b/compiler-rt/lib/builtins/riscv/int_mul_impl.inc new file mode 100644 index 0000000000000..50951d5f4195f --- /dev/null +++ b/compiler-rt/lib/builtins/riscv/int_mul_impl.inc @@ -0,0 +1,31 @@ +//===-- int_mul_impl.inc - Integer multiplication -------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// Helpers used by __mulsi3, __muldi3. +// +//===----------------------------------------------------------------------===// + +#if !defined(__riscv_mul) + .text + .align 2 + + .globl __mulxi3 + .type __mulxi3, @function +__mulxi3: + mv a2, a0 + mv a0, zero +.L1: + andi a3, a1, 1 + beqz a3, .L2 + add a0, a0, a2 +.L2: + srli a1, a1, 1 + slli a2, a2, 1 + bnez a1, .L1 + ret +#endif -- cgit v1.2.3