Author: sylvestre Date: Fri Nov 11 11:29:56 2016 New Revision: 286602 URL: http://llvm.org/viewvc/llvm-project?rev=286602&view=rev Log: Add a new optimization option -Og
Summary: Just like gcc, we should have the -Og option as more and more software are using it: https://llvm.org/bugs/show_bug.cgi?id=20765 Reviewers: echristo, dberlin, dblaikie, keith.walker.arm, rengolin Subscribers: aprantl, friss, mehdi_amini, RKSimon, probinson, majnemer, cfe-commits Differential Revision: https://reviews.llvm.org/D24998 Modified: cfe/trunk/docs/CommandGuide/clang.rst cfe/trunk/lib/Frontend/CompilerInvocation.cpp cfe/trunk/test/Preprocessor/init.c Modified: cfe/trunk/docs/CommandGuide/clang.rst URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/CommandGuide/clang.rst?rev=286602&r1=286601&r2=286602&view=diff ============================================================================== --- cfe/trunk/docs/CommandGuide/clang.rst (original) +++ cfe/trunk/docs/CommandGuide/clang.rst Fri Nov 11 11:29:56 2016 @@ -226,7 +226,7 @@ number of cross compilers, or may only s Code Generation Options ~~~~~~~~~~~~~~~~~~~~~~~ -.. option:: -O0, -O1, -O2, -O3, -Ofast, -Os, -Oz, -O, -O4 +.. option:: -O0, -O1, -O2, -O3, -Ofast, -Os, -Oz, -Og, -O, -O4 Specify which optimization level to use: @@ -252,6 +252,9 @@ Code Generation Options :option:`-Oz` Like :option:`-Os` (and thus :option:`-O2`), but reduces code size further. + :option:`-Og` Like :option:`-O1`. In future versions, this option might + disable different optimizations in order to improve debuggability. + :option:`-O` Equivalent to :option:`-O2`. :option:`-O4` and higher Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=286602&r1=286601&r2=286602&view=diff ============================================================================== --- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original) +++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Fri Nov 11 11:29:56 2016 @@ -98,6 +98,9 @@ static unsigned getOptimizationLevel(Arg if (S == "s" || S == "z" || S.empty()) return 2; + if (S == "g") + return 1; + return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); } Modified: cfe/trunk/test/Preprocessor/init.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/init.c?rev=286602&r1=286601&r2=286602&view=diff ============================================================================== --- cfe/trunk/test/Preprocessor/init.c (original) +++ cfe/trunk/test/Preprocessor/init.c Fri Nov 11 11:29:56 2016 @@ -205,6 +205,12 @@ // O1:#define __OPTIMIZE__ 1 // // +// RUN: %clang_cc1 -Og -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix Og %s +// +// Og-NOT:#define __OPTIMIZE_SIZE__ +// Og :#define __OPTIMIZE__ 1 +// +// // RUN: %clang_cc1 -Os -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix Os %s // // Os:#define __OPTIMIZE_SIZE__ 1 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
