[PATCH] D83211: [clang][cli] Factor out call to EXTRACTOR in generateCC1CommandLine (NFC)

[Jan Svoboda via Phabricator via cfe-commits]

jansvoboda11 updated this revision to Diff 307838.
jansvoboda11 added a comment.

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Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D83211/new/

https://reviews.llvm.org/D83211

Files:
  clang/lib/Frontend/CompilerInvocation.cpp
  llvm/unittests/Option/CMakeLists.txt


Index: llvm/unittests/Option/CMakeLists.txt
===================================================================
--- llvm/unittests/Option/CMakeLists.txt
+++ llvm/unittests/Option/CMakeLists.txt
@@ -6,6 +6,7 @@
 set(LLVM_TARGET_DEFINITIONS Opts.td)
 
 tablegen(LLVM Opts.inc -gen-opt-parser-defs)
+
 add_public_tablegen_target(OptsTestTableGen)
 
 add_llvm_unittest(OptionTests
Index: clang/lib/Frontend/CompilerInvocation.cpp
===================================================================
--- clang/lib/Frontend/CompilerInvocation.cpp
+++ clang/lib/Frontend/CompilerInvocation.cpp
@@ -4015,13 +4015,17 @@
 
 void CompilerInvocation::generateCC1CommandLine(
     SmallVectorImpl<const char *> &Args, StringAllocator SA) const {
+  // Capture the extracted value as a lambda argument to avoid potential issues
+  // with lifetime extension of the reference.
 #define OPTION_WITH_MARSHALLING(                                               \
     PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM,        \
     HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE,  \
     NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX)                  \
-  if (((FLAGS) & options::CC1Option) &&                                        \
-      (ALWAYS_EMIT || EXTRACTOR(this->KEYPATH) != (DEFAULT_VALUE))) {          \
-    DENORMALIZER(Args, SPELLING, SA, TABLE_INDEX, EXTRACTOR(this->KEYPATH));   \
+  if ((FLAGS)&options::CC1Option) {                                            \
+    [&](const auto &Extracted) {                                               \
+      if (ALWAYS_EMIT || Extracted != (DEFAULT_VALUE))                         \
+        DENORMALIZER(Args, SPELLING, SA, TABLE_INDEX, Extracted);              \
+    }(EXTRACTOR(this->KEYPATH));                                               \
   }
 
 #define OPTION_WITH_MARSHALLING_BOOLEAN(                                       \
@@ -4029,10 +4033,10 @@
     HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE,  \
     NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX, NEG_ID,          \
     NEG_SPELLING)                                                              \
-  if (((FLAGS)&options::CC1Option) &&                                          \
-      (ALWAYS_EMIT || EXTRACTOR(this->KEYPATH) != DEFAULT_VALUE)) {            \
-    DENORMALIZER(Args, SPELLING, NEG_SPELLING, SA, TABLE_INDEX,                \
-                 EXTRACTOR(this->KEYPATH));                                    \
+  if ((FLAGS)&options::CC1Option) {                                            \
+    bool Extracted = EXTRACTOR(this->KEYPATH);                                 \
+    if (ALWAYS_EMIT || Extracted != (DEFAULT_VALUE))                           \
+      DENORMALIZER(Args, SPELLING, NEG_SPELLING, SA, TABLE_INDEX, Extracted);  \
   }
 
 #include "clang/Driver/Options.inc"


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