[PATCH] D64458: add -fthinlto-index= option to clang-cl

[Bob Haarman via Phabricator via cfe-commits]

inglorion updated this revision to Diff 209954.
inglorion added a comment.

Simplified after rebasing on top of r366127.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64458/new/

https://reviews.llvm.org/D64458

Files:
  clang/include/clang/Driver/Options.td
  clang/test/Driver/cl-thinlto-backend.c


Index: clang/test/Driver/cl-thinlto-backend.c
===================================================================
--- /dev/null
+++ clang/test/Driver/cl-thinlto-backend.c
@@ -0,0 +1,9 @@
+// RUN: %clang_cl -c -flto=thin -Fo%t.obj %s
+// RUN: llvm-lto2 run -thinlto-distributed-indexes -o %t.exe %t.obj
+
+// -fthinlto_index should be passed to cc1
+// RUN: %clang_cl -### -c -fthinlto-index=%t.thinlto.bc -Fo%t1.obj \
+// RUN:     %t.obj 2>&1 | FileCheck %s
+
+// CHECK: -fthinlto-index=
+// CHECK: "-x" "ir"
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -1270,7 +1270,7 @@
            "of 0 means the number of threads will be derived from "
            "the number of CPUs detected)">;
 def fthinlto_index_EQ : Joined<["-"], "fthinlto-index=">,
-  Flags<[CC1Option]>, Group<f_Group>,
+  Flags<[CoreOption, CC1Option]>, Group<f_Group>,
   HelpText<"Perform ThinLTO importing using provided function summary index">;
 def fmacro_backtrace_limit_EQ : Joined<["-"], "fmacro-backtrace-limit=">,
                                 Group<f_Group>, Flags<[DriverOption, CoreOption]>;


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