https://github.com/kadircet created
https://github.com/llvm/llvm-project/pull/125722
This gets rid of some extra IO from driver startup, and possiblity of
emitting warnings twice.
From 7dce959f33d828e4a06ba386715a3d92b7be34bf Mon Sep 17 00:00:00 2001
From: Kadir Cetinkaya <kadir...@google.com>
Date: Tue, 4 Feb 2025 17:45:55 +0100
Subject: [PATCH] [clang] Stop parsing warning suppression mappings in driver
This gets rid of some extra IO from driver startup, and possiblity of
emitting warnings twice.
---
clang/tools/driver/driver.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/clang/tools/driver/driver.cpp b/clang/tools/driver/driver.cpp
index 74923247b7ee16..00c00cea16f470 100644
--- a/clang/tools/driver/driver.cpp
+++ b/clang/tools/driver/driver.cpp
@@ -318,6 +318,10 @@ int clang_main(int Argc, char **Argv, const
llvm::ToolContext &ToolContext) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts =
CreateAndPopulateDiagOpts(Args);
+ // Driver's diagnostics don't use suppression mappings, so don't bother
+ // parsing them. CC1 still receives full args, so this doesn't impact other
+ // actions.
+ DiagOpts->DiagnosticSuppressionMappingsFile.clear();
TextDiagnosticPrinter *DiagClient
= new TextDiagnosticPrinter(llvm::errs(), &*DiagOpts);
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