[PATCH] D46286: [Driver] Don't warn about unused inputs in config files
Martin Storsjö via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Mon Apr 30 13:40:28 PDT 2018
mstorsjo created this revision.
mstorsjo added reviewers: sepavloff, hans, rnk, hfinkel.
This avoids warnings about unused linker parameters, just like other flags are ignored if they're from config files.
Repository:
rC Clang
https://reviews.llvm.org/D46286
Files:
lib/Driver/Driver.cpp
test/Driver/Inputs/config-4.cfg
test/Driver/config-file.c
Index: test/Driver/config-file.c
===================================================================
--- test/Driver/config-file.c
+++ test/Driver/config-file.c
@@ -63,6 +63,7 @@
//
// RUN: %clang --config %S/Inputs/config-4.cfg -S %s -o /dev/null -v 2>&1 | FileCheck %s -check-prefix CHECK-UNUSED
// CHECK-UNUSED-NOT: argument unused during compilation:
+// CHECK-UNUSED-NOT: 'linker' input unused
//--- User directory is searched first.
Index: test/Driver/Inputs/config-4.cfg
===================================================================
--- test/Driver/Inputs/config-4.cfg
+++ test/Driver/Inputs/config-4.cfg
@@ -1,2 +1,3 @@
-L/usr/local/lib
--stdlib=libc++
\ No newline at end of file
+-lfoo
+-stdlib=libc++
Index: lib/Driver/Driver.cpp
===================================================================
--- lib/Driver/Driver.cpp
+++ lib/Driver/Driver.cpp
@@ -2899,6 +2899,9 @@
// this compilation, warn the user about it.
phases::ID InitialPhase = PL[0];
if (InitialPhase > FinalPhase) {
+ if (InputArg->isClaimed())
+ continue;
+
// Claim here to avoid the more general unused warning.
InputArg->claim();
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