[libc-commits] [libc] [libc][C23] Implemented remquof128 function (PR #94809)

via libc-commits libc-commits at lists.llvm.org
Fri Jun 7 15:21:33 PDT 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: Hendrik Hübner  (HendrikHuebner)

<details>
<summary>Changes</summary>

Added remquof128 function. Closes #<!-- -->94312

---
Full diff: https://github.com/llvm/llvm-project/pull/94809.diff


9 Files Affected:

- (modified) libc/config/linux/aarch64/entrypoints.txt (+1) 
- (modified) libc/config/linux/x86_64/entrypoints.txt (+1) 
- (modified) libc/spec/stdc.td (+1) 
- (modified) libc/src/math/CMakeLists.txt (+1) 
- (modified) libc/src/math/generic/CMakeLists.txt (+12) 
- (added) libc/src/math/generic/remquof128.cpp (+19) 
- (added) libc/src/math/remquof128.h (+20) 
- (modified) libc/test/src/math/smoke/CMakeLists.txt (+14) 
- (added) libc/test/src/math/smoke/remquof128_test.cpp (+13) 


``````````diff
diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 33ecff813a1fb..d30f01bb51c48 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -574,6 +574,7 @@ if(LIBC_TYPES_HAS_FLOAT128)
     libc.src.math.nextafterf128
     libc.src.math.nextdownf128
     libc.src.math.nextupf128
+    libc.src.math.remquof128
     libc.src.math.rintf128
     libc.src.math.roundf128
     libc.src.math.scalbnf128
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index e3ca544ae0185..814150ae757d5 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -604,6 +604,7 @@ if(LIBC_TYPES_HAS_FLOAT128)
     libc.src.math.nextafterf128
     libc.src.math.nextdownf128
     libc.src.math.nextupf128
+    libc.src.math.remquof128
     libc.src.math.rintf128
     libc.src.math.roundevenf128
     libc.src.math.roundf128
diff --git a/libc/spec/stdc.td b/libc/spec/stdc.td
index 9a436c8ae38d2..490aa0ba286ec 100644
--- a/libc/spec/stdc.td
+++ b/libc/spec/stdc.td
@@ -577,6 +577,7 @@ def StdC : StandardSpec<"stdc"> {
           FunctionSpec<"remainderl", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<LongDoubleType>]>,
 
           FunctionSpec<"remquof", RetValSpec<FloatType>, [ArgSpec<FloatType>, ArgSpec<FloatType>, ArgSpec<IntPtr>]>,
+          GuardedFunctionSpec<"remquof128", RetValSpec<Float128Type>, [ArgSpec<Float128Type>, ArgSpec<Float128Type>, ArgSpec<IntPtr>], "LIBC_TYPES_HAS_FLOAT128">,
           FunctionSpec<"remquo", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<DoubleType>, ArgSpec<IntPtr>]>,
           FunctionSpec<"remquol", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<LongDoubleType>, ArgSpec<IntPtr>]>,
 
diff --git a/libc/src/math/CMakeLists.txt b/libc/src/math/CMakeLists.txt
index 7a349ddc53724..4e275201072fa 100644
--- a/libc/src/math/CMakeLists.txt
+++ b/libc/src/math/CMakeLists.txt
@@ -309,6 +309,7 @@ add_math_entrypoint_object(remainderl)
 
 add_math_entrypoint_object(remquo)
 add_math_entrypoint_object(remquof)
+add_math_entrypoint_object(remquof128)
 add_math_entrypoint_object(remquol)
 
 add_math_entrypoint_object(rint)
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index b1d786fc6b29f..a859f7bd7268b 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -2416,6 +2416,18 @@ add_entrypoint_object(
     -O2
 )
 
+add_entrypoint_object(
+  remquof128
+  SRCS
+    remquof128.cpp
+  HDRS
+    ../remquof128.h
+  DEPENDS
+    libc.src.__support.FPUtil.division_and_remainder_operations
+  COMPILE_OPTIONS
+    -O2
+)
+
 add_entrypoint_object(
   remquo
   SRCS
diff --git a/libc/src/math/generic/remquof128.cpp b/libc/src/math/generic/remquof128.cpp
new file mode 100644
index 0000000000000..e195c7b51b5ff
--- /dev/null
+++ b/libc/src/math/generic/remquof128.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of remquof128 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/remquof128.h"
+#include "src/__support/FPUtil/DivisionAndRemainderOperations.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float128, remquof128, (float128 x, float128 y, int *exp)) {
+  return fputil::remquo(x, y, *exp);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/remquof128.h b/libc/src/math/remquof128.h
new file mode 100644
index 0000000000000..e9db1ef5c5b51
--- /dev/null
+++ b/libc/src/math/remquof128.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for remquof128 --------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_MATH_REMQUOF128_H
+#define LLVM_LIBC_SRC_MATH_REMQUOF128_H
+
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE {
+
+float128 remquof128(float128 x, float128 y, int *exp);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_REMQUOF128_H
diff --git a/libc/test/src/math/smoke/CMakeLists.txt b/libc/test/src/math/smoke/CMakeLists.txt
index 110fa1de97d6d..e9eb65a8982bc 100644
--- a/libc/test/src/math/smoke/CMakeLists.txt
+++ b/libc/test/src/math/smoke/CMakeLists.txt
@@ -2514,6 +2514,20 @@ add_fp_unittest(
     libc.src.__support.FPUtil.fp_bits
 )
 
+add_fp_unittest(
+  remquof128_test
+  SUITE
+    libc-math-smoke-tests
+  SRCS
+    remquof128_test.cpp
+  HDRS
+    RemQuoTest.h
+  DEPENDS
+    libc.src.math.remquof128
+    libc.src.__support.FPUtil.basic_operations
+    libc.src.__support.FPUtil.fp_bits
+)
+
 add_fp_unittest(
   remquo_test
   SUITE
diff --git a/libc/test/src/math/smoke/remquof128_test.cpp b/libc/test/src/math/smoke/remquof128_test.cpp
new file mode 100644
index 0000000000000..8ef6c3b31cef2
--- /dev/null
+++ b/libc/test/src/math/smoke/remquof128_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for remquof128 ------------------------------------------===//
+//
+// 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 "RemQuoTest.h"
+
+#include "src/math/remquof128.h"
+
+LIST_REMQUO_TESTS(float128, LIBC_NAMESPACE::remquof128)

``````````

</details>


https://github.com/llvm/llvm-project/pull/94809


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