>> > I also observed 1% to 2% performance improvement on some benchmarks. >> > >> >> Could you show these numbers? Keep in mind that turning other such >> things on by default has usually been shown with real numbers and >> tested more widely - or at least discussion. > > > 1st number: the percentage of execution time change, 2nd number: base > execution time (without struct-path aware TBAA): > MultiSource/Benchmarks/MiBench/telecomm-CRC32/telecomm-CRC32 > -2.92304043638 1.6866 > External/SPEC/CFP2006/433.milc/433.milc > -2.54741997653 6.9011 > External/SPEC/CINT2000/255.vortex/255.vortex > -2.33475411922 1.5719 > External/SPEC/CINT2006/400.perlbench/400.perlbench > -2.1423993236 7.3329 >
Missing some numbers here, but... Are these the only numbers that changed outside of noise? Were there any regressions? > Keep in mind that the above numbers were collected on my local machine. > > We also did a lot of internal functional testing. Heh. I doubt this will fire much with Objective-C ;) At any rate, how do the reversions of yesterday affect this patch? -eric > > Thanks, > Manman > >> >> >> -eric >> >> >> >> > Manman >> > >> > >> > On Mon, Sep 30, 2013 at 9:49 PM, Eric Christopher <[email protected]> >> > wrote: >> >> >> >> Do you have any numbers or anything showing this as being a win? >> >> >> >> -eric >> >> >> >> On Mon, Sep 30, 2013 at 12:35 PM, Manman Ren <[email protected]> >> >> wrote: >> >> > Author: mren >> >> > Date: Mon Sep 30 14:35:19 2013 >> >> > New Revision: 191695 >> >> > >> >> > URL: http://llvm.org/viewvc/llvm-project?rev=191695&view=rev >> >> > Log: >> >> > Turn struct-path aware TBAA on by default. >> >> > >> >> > Use -no-struct-path-tbaa to turn it off. >> >> > >> >> > Modified: >> >> > cfe/trunk/include/clang/Driver/CC1Options.td >> >> > cfe/trunk/include/clang/Driver/Options.td >> >> > cfe/trunk/lib/Driver/Tools.cpp >> >> > cfe/trunk/lib/Frontend/CompilerInvocation.cpp >> >> > cfe/trunk/test/CodeGen/bitfield.c >> >> > cfe/trunk/test/CodeGen/may-alias.c >> >> > cfe/trunk/test/CodeGen/tbaa-class.cpp >> >> > cfe/trunk/test/CodeGen/tbaa.cpp >> >> > >> >> > Modified: cfe/trunk/include/clang/Driver/CC1Options.td >> >> > URL: >> >> > >> >> > http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/CC1Options.td?rev=191695&r1=191694&r2=191695&view=diff >> >> > >> >> > >> >> > ============================================================================== >> >> > --- cfe/trunk/include/clang/Driver/CC1Options.td (original) >> >> > +++ cfe/trunk/include/clang/Driver/CC1Options.td Mon Sep 30 14:35:19 >> >> > 2013 >> >> > @@ -165,8 +165,8 @@ def fuse_register_sized_bitfield_access: >> >> > HelpText<"Use register sized accesses to bit-fields, when >> >> > possible.">; >> >> > def relaxed_aliasing : Flag<["-"], "relaxed-aliasing">, >> >> > HelpText<"Turn off Type Based Alias Analysis">; >> >> > -def struct_path_tbaa : Flag<["-"], "struct-path-tbaa">, >> >> > - HelpText<"Turn on struct-path aware Type Based Alias Analysis">; >> >> > +def no_struct_path_tbaa : Flag<["-"], "no-struct-path-tbaa">, >> >> > + HelpText<"Turn off struct-path aware Type Based Alias Analysis">; >> >> > def masm_verbose : Flag<["-"], "masm-verbose">, >> >> > HelpText<"Generate verbose assembly output">; >> >> > def mcode_model : Separate<["-"], "mcode-model">, >> >> > >> >> > Modified: cfe/trunk/include/clang/Driver/Options.td >> >> > URL: >> >> > >> >> > http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=191695&r1=191694&r2=191695&view=diff >> >> > >> >> > >> >> > ============================================================================== >> >> > --- cfe/trunk/include/clang/Driver/Options.td (original) >> >> > +++ cfe/trunk/include/clang/Driver/Options.td Mon Sep 30 14:35:19 >> >> > 2013 >> >> > @@ -646,6 +646,7 @@ def fno_spell_checking : Flag<["-"], "fn >> >> > def fno_stack_protector : Flag<["-"], "fno-stack-protector">, >> >> > Group<f_Group>; >> >> > def fno_strict_aliasing : Flag<["-"], "fno-strict-aliasing">, >> >> > Group<f_Group>; >> >> > def fstruct_path_tbaa : Flag<["-"], "fstruct-path-tbaa">, >> >> > Group<f_Group>; >> >> > +def fno_struct_path_tbaa : Flag<["-"], "fno-struct-path-tbaa">, >> >> > Group<f_Group>; >> >> > def fno_strict_enums : Flag<["-"], "fno-strict-enums">, >> >> > Group<f_Group>; >> >> > def fno_strict_overflow : Flag<["-"], "fno-strict-overflow">, >> >> > Group<f_Group>; >> >> > def fno_threadsafe_statics : Flag<["-"], "fno-threadsafe-statics">, >> >> > Group<f_Group>, >> >> > >> >> > Modified: cfe/trunk/lib/Driver/Tools.cpp >> >> > URL: >> >> > >> >> > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=191695&r1=191694&r2=191695&view=diff >> >> > >> >> > >> >> > ============================================================================== >> >> > --- cfe/trunk/lib/Driver/Tools.cpp (original) >> >> > +++ cfe/trunk/lib/Driver/Tools.cpp Mon Sep 30 14:35:19 2013 >> >> > @@ -2183,8 +2183,9 @@ void Clang::ConstructJob(Compilation &C, >> >> > options::OPT_fno_strict_aliasing, >> >> > getToolChain().IsStrictAliasingDefault())) >> >> > CmdArgs.push_back("-relaxed-aliasing"); >> >> > - if (Args.hasArg(options::OPT_fstruct_path_tbaa)) >> >> > - CmdArgs.push_back("-struct-path-tbaa"); >> >> > + if (!Args.hasFlag(options::OPT_fstruct_path_tbaa, >> >> > + options::OPT_fno_struct_path_tbaa)) >> >> > + CmdArgs.push_back("-no-struct-path-tbaa"); >> >> > if (Args.hasFlag(options::OPT_fstrict_enums, >> >> > options::OPT_fno_strict_enums, >> >> > false)) >> >> > CmdArgs.push_back("-fstrict-enums"); >> >> > >> >> > Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp >> >> > URL: >> >> > >> >> > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=191695&r1=191694&r2=191695&view=diff >> >> > >> >> > >> >> > ============================================================================== >> >> > --- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original) >> >> > +++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Mon Sep 30 14:35:19 >> >> > 2013 >> >> > @@ -344,7 +344,7 @@ static bool ParseCodeGenArgs(CodeGenOpti >> >> > Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( >> >> > OPT_fuse_register_sized_bitfield_access); >> >> > Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); >> >> > - Opts.StructPathTBAA = Args.hasArg(OPT_struct_path_tbaa); >> >> > + Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); >> >> > Opts.DwarfDebugFlags = >> >> > Args.getLastArgValue(OPT_dwarf_debug_flags); >> >> > Opts.MergeAllConstants = >> >> > !Args.hasArg(OPT_fno_merge_all_constants); >> >> > Opts.NoCommon = Args.hasArg(OPT_fno_common); >> >> > >> >> > Modified: cfe/trunk/test/CodeGen/bitfield.c >> >> > URL: >> >> > >> >> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/bitfield.c?rev=191695&r1=191694&r2=191695&view=diff >> >> > >> >> > >> >> > ============================================================================== >> >> > --- cfe/trunk/test/CodeGen/bitfield.c (original) >> >> > +++ cfe/trunk/test/CodeGen/bitfield.c Mon Sep 30 14:35:19 2013 >> >> > @@ -1,5 +1,5 @@ >> >> > -// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - >> >> > -O3 >> >> > | FileCheck %s >> >> > -// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - >> >> > -O3 >> >> > -struct-path-tbaa | FileCheck %s --check-prefix=PATH >> >> > +// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - >> >> > -O3 >> >> > -no-struct-path-tbaa | FileCheck %s >> >> > +// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - >> >> > -O3 >> >> > | FileCheck %s --check-prefix=PATH >> >> > >> >> > static int f0(int n) { >> >> > struct s0 { >> >> > >> >> > Modified: cfe/trunk/test/CodeGen/may-alias.c >> >> > URL: >> >> > >> >> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/may-alias.c?rev=191695&r1=191694&r2=191695&view=diff >> >> > >> >> > >> >> > ============================================================================== >> >> > --- cfe/trunk/test/CodeGen/may-alias.c (original) >> >> > +++ cfe/trunk/test/CodeGen/may-alias.c Mon Sep 30 14:35:19 2013 >> >> > @@ -1,5 +1,5 @@ >> >> > -// RUN: %clang_cc1 -Werror -triple i386-unknown-unknown -emit-llvm >> >> > -O1 >> >> > -disable-llvm-optzns -o - %s | FileCheck %s >> >> > -// RUN: %clang_cc1 -Werror -triple i386-unknown-unknown -emit-llvm >> >> > -O1 >> >> > -struct-path-tbaa -disable-llvm-optzns -o - %s | FileCheck %s >> >> > -check-prefix=PATH >> >> > +// RUN: %clang_cc1 -Werror -triple i386-unknown-unknown -emit-llvm >> >> > -O1 >> >> > -no-struct-path-tbaa -disable-llvm-optzns -o - %s | FileCheck %s >> >> > +// RUN: %clang_cc1 -Werror -triple i386-unknown-unknown -emit-llvm >> >> > -O1 >> >> > -disable-llvm-optzns -o - %s | FileCheck %s -check-prefix=PATH >> >> > >> >> > // Types with the may_alias attribute should be considered >> >> > equivalent >> >> > // to char for aliasing. >> >> > >> >> > Modified: cfe/trunk/test/CodeGen/tbaa-class.cpp >> >> > URL: >> >> > >> >> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/tbaa-class.cpp?rev=191695&r1=191694&r2=191695&view=diff >> >> > >> >> > >> >> > ============================================================================== >> >> > --- cfe/trunk/test/CodeGen/tbaa-class.cpp (original) >> >> > +++ cfe/trunk/test/CodeGen/tbaa-class.cpp Mon Sep 30 14:35:19 2013 >> >> > @@ -1,5 +1,5 @@ >> >> > -// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 >> >> > -disable-llvm-optzns >> >> > %s -emit-llvm -o - | FileCheck %s >> >> > -// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -struct-path-tbaa >> >> > -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s >> >> > -check-prefix=PATH >> >> > +// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 >> >> > -no-struct-path-tbaa >> >> > -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s >> >> > +// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 >> >> > -disable-llvm-optzns >> >> > %s -emit-llvm -o - | FileCheck %s -check-prefix=PATH >> >> > // Test TBAA metadata generated by front-end. >> >> > >> >> > typedef unsigned char uint8_t; >> >> > >> >> > Modified: cfe/trunk/test/CodeGen/tbaa.cpp >> >> > URL: >> >> > >> >> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/tbaa.cpp?rev=191695&r1=191694&r2=191695&view=diff >> >> > >> >> > >> >> > ============================================================================== >> >> > --- cfe/trunk/test/CodeGen/tbaa.cpp (original) >> >> > +++ cfe/trunk/test/CodeGen/tbaa.cpp Mon Sep 30 14:35:19 2013 >> >> > @@ -1,5 +1,5 @@ >> >> > -// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 >> >> > -disable-llvm-optzns >> >> > %s -emit-llvm -o - | FileCheck %s >> >> > -// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -struct-path-tbaa >> >> > -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s >> >> > -check-prefix=PATH >> >> > +// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 >> >> > -no-struct-path-tbaa >> >> > -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s >> >> > +// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 >> >> > -disable-llvm-optzns >> >> > %s -emit-llvm -o - | FileCheck %s -check-prefix=PATH >> >> > // Test TBAA metadata generated by front-end. >> >> > >> >> > typedef unsigned char uint8_t; >> >> > >> >> > >> >> > _______________________________________________ >> >> > cfe-commits mailing list >> >> > [email protected] >> >> > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits >> > >> > > > _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
