[PATCH] D121683: Emit a warning if -xc/-xc++ is after the last input file

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added inline comments.


================
Comment at: clang/lib/Driver/Driver.cpp:2316
+    if (LastInputArg->getIndex() < LastXArg->getIndex()) {
+      Diag(clang::diag::warn_drv_unused_x) << LastXArg->getValue();
+    }
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https://llvm.org/docs/CodingStandards.html#don-t-use-braces-on-simple-single-statement-bodies-of-if-else-loop-statements

Don’t Use Braces on Simple Single-Statement Bodies of if/else/loop Statements

Is it guaranteed that both LastXArg and LastInputArg will be non-null?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D121683/new/

https://reviews.llvm.org/D121683