[bazel] Port #150087 and #144983 (#150255)

Author: rupprecht

utils/bazel/llvm-project-overlay/libc/BUILD.bazel

@@ -1001,6 +1001,19 @@ libc_support_library(
     ],
 )
 
+libc_support_library(
+    name = "__support_fputil_comparison_operations",
+    hdrs = [
+        "src/__support/FPUtil/comparison_operations.h",
+    ],
+    deps = [
+        ":__support_cpp_type_traits",
+        ":__support_fputil_fenv_impl",
+        ":__support_fputil_fp_bits",
+        ":__support_macros_config",
+    ],
+)
+
 libc_support_library(
     name = "__support_file_file",
     srcs = [

utils/bazel/llvm-project-overlay/libc/test/src/__support/FPUtil/BUILD.bazel

@@ -58,3 +58,15 @@ libc_test(
         "//libc/utils/MPFRWrapper:mpfr_wrapper",
     ],
 )
+
+libc_test(
+    name = "comparison_operations_test",
+    srcs = ["comparison_operations_test.cpp"],
+    deps = [
+        "//libc:__support_fputil_bfloat16",
+        "//libc:__support_fputil_comparison_operations",
+        "//libc:__support_fputil_rounding_mode",
+        "//libc:__support_macros_properties_types",
+        "//libc/test/UnitTest:fp_test_helpers",
+    ],
+)

utils/bazel/llvm-project-overlay/libc/utils/MPFRWrapper/BUILD.bazel

@@ -44,6 +44,7 @@ libc_test_library(
         "//libc:__support_cpp_type_traits",
         "//libc:__support_fputil_bfloat16",
         "//libc:__support_fputil_cast",
+        "//libc:__support_fputil_comparison_operations",
         "//libc:__support_fputil_fp_bits",
         "//libc:__support_macros_config",
         "//libc:__support_macros_properties_types",