en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#27a972a6 Diagnose -Wunused-value based on CFG reachability(This relands 59337263ab45d7657e and makes sure comma operator diagnostics are suppressed in a SFINAE context.)While at it, add the diagnosis message "left operand of comma operator has no effect" (used by GCC) for comma operator.This also makes Clang diagnose in the constant evaluation context which aligns with GCC/MSVC behavior. (https://godbolt.org/z/7zxb8Tx96)Reviewed By: aaron.ballmanDifferential Revision: https://reviews.llvm.org/D103938 List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Thu, 24 Jun 2021 06:46:42 +0000 Yuanfang Chen <yuanfang.chen@sony.com> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#59337263 Revert "Diagnose -Wunused-value based on CFG reachability"This reverts commit cbbf2e8c8ae7730ff0121f4868de4a7d188feb65.It seems causing diagnoses in SFINAE context. List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Thu, 23 Sep 2021 18:12:00 +0000 Yuanfang Chen <yuanfang.chen@sony.com> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#cbbf2e8c Diagnose -Wunused-value based on CFG reachabilityWhile at it, add the diagnosis message "left operand of comma operator has no effect" (used by GCC) for comma operator.This also makes Clang diagnose in the constant evaluation context which aligns with GCC/MSVC behavior. (https://godbolt.org/z/7zxb8Tx96)Reviewed By: aaron.ballmanDifferential Revision: https://reviews.llvm.org/D103938 List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Thu, 24 Jun 2021 06:46:42 +0000 Yuanfang Chen <yuanfang.chen@sony.com> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#73a8bcd7 Revert "Diagnose -Wunused-value based on CFG reachability"This reverts commit 63e0d038fc20c894a3d541effa1bc2b1fdea37b9.It causes test failures:http://lab.llvm.org:8011/#/builders/119/builds/5612https://logs.chromium.org/logs/fuchsia/buildbucket/cr-buildbucket/8835548361443044001/+/u/clang/test/stdout List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Tue, 21 Sep 2021 16:25:13 +0000 Aaron Ballman <aaron@aaronballman.com> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#63e0d038 Diagnose -Wunused-value based on CFG reachabilityWhile at it, add the diagnosis message "left operand of comma operator has no effect" (used by GCC) for comma operator.This also makes Clang diagnose in the constant evaluation context which aligns with GCC/MSVC behavior. (https://godbolt.org/z/7zxb8Tx96)Reviewed By: aaron.ballmanDifferential Revision: https://reviews.llvm.org/D103938 List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Thu, 24 Jun 2021 06:46:42 +0000 Yuanfang Chen <yuanfang.chen@sony.com> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#fb6deeb9 Refactor the way we handle diagnosing unused expression results.Rather than sprinkle calls to DiagnoseUnusedExprResult() around in places where we want diagnostics, we now diagnose unused expression statements and full expressions in a more generic way when acting on the final expression statement. This results in more appropriate diagnostics for [[nodiscard]] where we were previously lacking them, such as when the body of a for loop is not a compound statement.This patch fixes PR39837.llvm-svn: 350404 List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Fri, 04 Jan 2019 16:58:14 +0000 Aaron Ballman <aaron@aaronballman.com> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#a547eb27 P0305R0: Semantic analysis and code generation for C++17 init-statement for 'if' and 'switch': if (stmt; condition) { ... }Patch by Anton Bikineev! Some minor formatting and comment tweets by me.llvm-svn: 275350 List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Thu, 14 Jul 2016 00:11:03 +0000 Richard Smith <richard-llvm@metafoo.co.uk> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#b8c414cc Fix typo-correction crash if a typo occurs within the operand of afunction-style cast to a non-dependent type which is then used in an invalidway. We'd lose the "type dependent" bit here, and downstream Sema processingwould then discard the expression if it was used in a context where its typerendered it invalid.llvm-svn: 274267 List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Thu, 30 Jun 2016 20:24:30 +0000 Richard Smith <richard-llvm@metafoo.co.uk> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp#c7a05a9f P0305R1: Parsing support for init-statements in 'if' and 'switch' statements.No semantic analysis yet.This is a pain to disambiguate correctly, because the parsing rules for thedeclaration form of a condition and of an init-statement are quite different --for a token sequence that looks like a declaration, we frequently need todisambiguate all the way to the ')' or ';'.We could do better here in some cases by stopping disambiguation once we'vedecided whether we've got an expression or not (rather than keeping going untilwe know whether it's an init-statement declaration or a condition declaration),by unifying our parsing code for the two types of declaration and moving thesyntactic checks into Sema; if this has a measurable impact on parsingperformance, I'll look into that.llvm-svn: 274169 List of files: /llvm-project-15.0.7/clang/test/Parser/cxx1z-init-statement.cpp Wed, 29 Jun 2016 21:17:59 +0000 Richard Smith <richard-llvm@metafoo.co.uk>