Reland "[Remarks] Add -foptimization-record-passes to filter remark emission"

Currently we have -Rpass for filtering the remarks that are displayed as
diagnostics, but when using -fsave-optimization-record, there is no way
to filter the remarks while generating them.

This adds support for filtering remarks by passes using a regex.
Ex: `clang -fsave-optimization-record -foptimization-record-passes=inline`

will only emit the remarks coming from the pass `inline`.

This adds:

* `-fsave-optimization-record` to the driver
* `-opt-record-passes` to cc1
* `-lto-pass-remarks-filter` to the LTOCodeGenerator
* `--opt-remarks-passes` to lld
* `-pass-remarks-filter` to llc, opt, llvm-lto, llvm-lto2
* `-opt-remarks-passes` to gold-plugin

Differential Revision: https://reviews.llvm.org/D59268

Original llvm-svn: 355964

llvm-svn: 355984

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/Driver/ToolChains/Darwin.cpp b/clang/lib/Driver/ToolChains/Darwin.cpp
index ea93fadcdc2..f91ab1946f5 100644
--- a/clang/lib/Driver/ToolChains/Darwin.cpp
+++ b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -483,6 +483,14 @@ void darwin::Linker::ConstructJob(Compilation &C, const JobAction &JA,
         CmdArgs.push_back(Args.MakeArgString(Opt));
       }
     }
+
+    if (const Arg *A =
+            Args.getLastArg(options::OPT_foptimization_record_passes_EQ)) {
+      CmdArgs.push_back("-mllvm");
+      std::string Passes =
+          std::string("-lto-pass-remarks-filter=") + A->getValue();
+      CmdArgs.push_back(Args.MakeArgString(Passes));
+    }
   }
 
   // Propagate the -moutline flag to the linker in LTO.