From 647337f97039cac35594ea1502e007d8406a2c99 Mon Sep 17 00:00:00 2001
From: Tue Ly <lntue.h@gmail.com>
Date: Mon, 21 Jul 2025 03:53:50 +0000
Subject: [PATCH 1/2] [libc][bazel] Add hypotf16 bazel targets.

---
 utils/bazel/llvm-project-overlay/libc/BUILD.bazel         | 8 ++++++++
 .../bazel/llvm-project-overlay/libc/libc_build_rules.bzl  | 2 ++
 .../llvm-project-overlay/libc/test/src/math/BUILD.bazel   | 7 +++++++
 .../libc/test/src/math/smoke/BUILD.bazel                  | 5 +++++
 4 files changed, 22 insertions(+)

diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index 337423cfb96cb..56a3474692720 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -3471,6 +3471,14 @@ libc_math_function(
     ],
 )
 
+libc_math_function(
+    name = "hypotf16",
+    additional_deps = [
+        ":__support_fputil_multiply_add",
+        ":__support_fputil_sqrt",
+    ],
+)
+
 libc_math_function(name = "ilogb")
 
 libc_math_function(name = "ilogbf")
diff --git a/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl b/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
index e123e4d32b785..45bf723bc5c91 100644
--- a/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
+++ b/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
@@ -17,6 +17,8 @@ def libc_common_copts():
         "-I" + libc_include_path,
         "-I" + paths.join(libc_include_path, "include"),
         "-DLIBC_NAMESPACE=" + LIBC_NAMESPACE,
+        # For complex floating point literals.
+        "-fext-numeric-literals",
     ]
 
 def libc_release_copts():
diff --git a/utils/bazel/llvm-project-overlay/libc/test/src/math/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/test/src/math/BUILD.bazel
index d20922df1b8b5..7f119e3e9b637 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/src/math/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/test/src/math/BUILD.bazel
@@ -286,6 +286,13 @@ math_mpfr_test(
     ],
 )
 
+math_mpfr_test(
+    name = "hypotf16",
+    hdrs = [
+        "HypotTest.h",
+    ],
+)
+
 math_mpfr_test(
     name = "llrint",
     hdrs = ["RoundToIntegerTest.h"],
diff --git a/utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel
index 4df1c4508d764..6d9d1d6a33255 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel
@@ -898,6 +898,11 @@ math_test(
     hdrs = ["HypotTest.h"],
 )
 
+math_test(
+    name = "hypotf16",
+    hdrs = ["HypotTest.h"],
+)
+
 math_test(
     name = "ilogb",
     hdrs = ["ILogbTest.h"],

From 1af8cc55e1e53975c57dfe8a1ba5878d7f0da229 Mon Sep 17 00:00:00 2001
From: Tue Ly <lntue.h@gmail.com>
Date: Mon, 21 Jul 2025 19:55:25 +0000
Subject: [PATCH 2/2] Move -fext-numeric-literals to libc_test_rules.bzl.

---
 utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl     | 2 --
 utils/bazel/llvm-project-overlay/libc/test/libc_test_rules.bzl | 3 ++-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl b/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
index 45bf723bc5c91..e123e4d32b785 100644
--- a/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
+++ b/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
@@ -17,8 +17,6 @@ def libc_common_copts():
         "-I" + libc_include_path,
         "-I" + paths.join(libc_include_path, "include"),
         "-DLIBC_NAMESPACE=" + LIBC_NAMESPACE,
-        # For complex floating point literals.
-        "-fext-numeric-literals",
     ]
 
 def libc_release_copts():
diff --git a/utils/bazel/llvm-project-overlay/libc/test/libc_test_rules.bzl b/utils/bazel/llvm-project-overlay/libc/test/libc_test_rules.bzl
index 41a706d2d92fb..a7acd6159afac 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/libc_test_rules.bzl
+++ b/utils/bazel/llvm-project-overlay/libc/test/libc_test_rules.bzl
@@ -62,7 +62,8 @@ def libc_test(
         name = name,
         local_defines = local_defines + LIBC_CONFIGURE_OPTIONS,
         deps = deps,
-        copts = copts + libc_common_copts(),
+        # For complex floating point literals.
+        copts = copts + libc_common_copts() + ["-fext-numeric-literals"],
         linkstatic = 1,
         **kwargs
     )