[llvm] [bazel] Add support for building orc_rt (PR #87730)

[Keith Smiley via llvm-commits]

https://github.com/keith updated https://github.com/llvm/llvm-project/pull/87730

>From e305b658d3269999e16dfed51b7fe3f6274697a1 Mon Sep 17 00:00:00 2001
From: Keith Smiley <keithbsmiley at gmail.com>
Date: Thu, 4 Apr 2024 16:58:58 -0700
Subject: [PATCH 1/2] [bazel] Add support for building orc_rt

---
 .../compiler-rt/BUILD.bazel                   | 54 +++++++++++++++++++
 .../lib/orc/tests/unit/BUILD.bazel            | 23 ++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 utils/bazel/llvm-project-overlay/compiler-rt/lib/orc/tests/unit/BUILD.bazel

diff --git a/utils/bazel/llvm-project-overlay/compiler-rt/BUILD.bazel b/utils/bazel/llvm-project-overlay/compiler-rt/BUILD.bazel
index 577e6c033b4e81..9a4e103be01e2c 100644
--- a/utils/bazel/llvm-project-overlay/compiler-rt/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/compiler-rt/BUILD.bazel
@@ -54,3 +54,57 @@ cc_library(
         ":config",
     ],
 )
+
+cc_library(
+    name = "orc_rt_common_headers",
+    hdrs = [
+        "lib/orc/adt.h",
+        "lib/orc/bitmask_enum.h",
+        "lib/orc/common.h",
+        "lib/orc/compiler.h",
+        "lib/orc/debug.h",
+        "lib/orc/endianness.h",
+        "lib/orc/error.h",
+        "lib/orc/executor_address.h",
+        "lib/orc/executor_symbol_def.h",
+        "lib/orc/extensible_rtti.h",
+        "lib/orc/interval_map.h",
+        "lib/orc/interval_set.h",
+        "lib/orc/simple_packed_serialization.h",
+        "lib/orc/stl_extras.h",
+        "lib/orc/string_pool.h",
+        "lib/orc/wrapper_function_utils.h",
+    ],
+    strip_include_prefix = "lib/orc",
+)
+
+cc_library(
+    name = "orc_rt",
+    srcs = [
+        "lib/orc/debug.cpp",
+        "lib/orc/dlfcn_wrapper.cpp",
+        "lib/orc/extensible_rtti.cpp",
+        "lib/orc/log_error_to_stderr.cpp",
+        "lib/orc/run_program_wrapper.cpp",
+    ] + select({
+        "@platforms//os:macos": [
+            "lib/orc/macho_platform.cpp",
+            "lib/orc/macho_platform.h",
+            "lib/orc/macho_tlv.arm64.S",
+            "lib/orc/macho_tlv.x86-64.S",
+        ],
+        "@platforms//os:linux": [
+            "lib/orc/elfnix_platform.cpp",
+            "lib/orc/elfnix_platform.h",
+            "lib/orc/elfnix_tls.aarch64.S",
+            "lib/orc/elfnix_tls.ppc64.S",
+            "lib/orc/elfnix_tls.x86-64.S",
+        ],
+    }),
+    hdrs = glob(["include/orc_rt/*.h"]),
+    includes = ["include"],
+    linkstatic = True,
+    deps = [
+        ":orc_rt_common_headers",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/compiler-rt/lib/orc/tests/unit/BUILD.bazel b/utils/bazel/llvm-project-overlay/compiler-rt/lib/orc/tests/unit/BUILD.bazel
new file mode 100644
index 00000000000000..29db1d173382ce
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/compiler-rt/lib/orc/tests/unit/BUILD.bazel
@@ -0,0 +1,23 @@
+# This file is licensed 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
+
+package(
+    default_visibility = ["//visibility:public"],
+    features = ["layering_check"],
+)
+
+licenses(["notice"])
+
+[
+    cc_test(
+        name = "{}".format(file.split(".")[0]),
+        srcs = [file] + glob(["*.h"]),
+        deps = [
+            "//compiler-rt:orc_rt",
+            "//compiler-rt:orc_rt_common_headers",
+            "//third-party/unittest:gtest_main",
+        ],
+    )
+    for file in glob(["*.cpp"])
+]

>From c67412d885dde14c0d486c11534ff9b79c7001b2 Mon Sep 17 00:00:00 2001
From: Keith Smiley <keithbsmiley at gmail.com>
Date: Fri, 5 Apr 2024 00:02:41 +0000
Subject: [PATCH 2/2] Linux fixes

---
 .../compiler-rt/lib/orc/tests/unit/BUILD.bazel             | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/utils/bazel/llvm-project-overlay/compiler-rt/lib/orc/tests/unit/BUILD.bazel b/utils/bazel/llvm-project-overlay/compiler-rt/lib/orc/tests/unit/BUILD.bazel
index 29db1d173382ce..520bf2ab397a0a 100644
--- a/utils/bazel/llvm-project-overlay/compiler-rt/lib/orc/tests/unit/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/compiler-rt/lib/orc/tests/unit/BUILD.bazel
@@ -16,8 +16,13 @@ licenses(["notice"])
         deps = [
             "//compiler-rt:orc_rt",
             "//compiler-rt:orc_rt_common_headers",
+            "//third-party/unittest:gtest",
             "//third-party/unittest:gtest_main",
         ],
     )
-    for file in glob(["*.cpp"])
+    for file in glob(
+        ["*.cpp"],
+        # TODO: Broken with older libc++ versions, currently unused anyways
+        exclude = ["interval_set_test.cpp"],
+    )
 ]