[libc-commits] [libc] [libc][math][c23] fmul correcly rounded to all rounding modes (PR #91537)

[via libc-commits]

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@@ -0,0 +1,131 @@
+//===-- Implementation of fmul function------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/math/fmul.h"
+#include "src/__support/CPP/bit.h"
+#include "src/__support/FPUtil/BasicOperations.h"
+#include "src/__support/FPUtil/FPBits.h"
+#include "src/__support/FPUtil/rounding_mode.h"
+#include "src/__support/common.h"
+#include "src/__support/uint128.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float, fmul, (double x, double y)) {
+  auto x_bits = fputil::FPBits<double>(x);
+  // uint64_t x_u = x_bits.uintval();
+
+  auto y_bits = fputil::FPBits<double>(y);
+  // uint64_t y_u = y_bits.uintval();
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lntue wrote:

remove the commented line.

https://github.com/llvm/llvm-project/pull/91537