Support order file instrumentation in swift compile actions

PiperOrigin-RevId: 467339063
bazelbuild · Aug 13, 2022 · 2a1a387 · 2a1a387 · brentleyjones · Jun 21, 2024
1 parent fc4c4c7
commit 2a1a387
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diff --git a/swift/toolchains/BUILD b/swift/toolchains/BUILD
@@ -47,6 +47,7 @@ bzl_library(
         "//swift/toolchains/config:tool_config",
         "@bazel_skylib//lib:dicts",
         "@bazel_skylib//lib:paths",
+        "@bazel_skylib//rules:common_settings",
     ],
 )
 

diff --git a/swift/toolchains/config/compile_config.bzl b/swift/toolchains/config/compile_config.bzl
@@ -361,6 +361,19 @@ def compile_action_configs(
         ),
     ]
 
+    #### FDO flags
+    action_configs.append(
+        # Support for order-file instrumentation.
+        ActionConfigInfo(
+            actions = [SWIFT_ACTION_COMPILE],
+            configurators = [
+                add_arg("-sanitize=undefined"),
+                add_arg("-sanitize-coverage=func"),
+            ],
+            features = ["fdo_instrument_order_file"],
+        ),
+    )
+
     #### Flags controlling how Swift/Clang modular inputs are processed
 
     action_configs += [