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| author | Andi Kleen <ak@linux.intel.com> | 2013-04-23 03:10:02 +0000 |
|---|---|---|
| committer | Andi Kleen <ak@gcc.gnu.org> | 2013-04-23 03:10:02 +0000 |
| commit | 057f8f20df4a1ef022ea917f4e7690b3092089c9 (patch) | |
| tree | eff52b355bd46487f372ab36d3838beee7409245 | |
| parent | 86210f13cdab46fb3ac1327f7e016646684e5709 (diff) | |
| download | gcc-057f8f20df4a1ef022ea917f4e7690b3092089c9.zip gcc-057f8f20df4a1ef022ea917f4e7690b3092089c9.tar.gz gcc-057f8f20df4a1ef022ea917f4e7690b3092089c9.tar.bz2 | |
Add -flto-report-wpa
-flto-report is useful, but it prints for every LTRANS pass and
is very noisy and the main problem is often in WPA only.
Add a new -flto-report-wpa option that is only printed for WPA.
gcc/:
2013-04-22 Andi Kleen <ak@linux.intel.com>
* common.opt (-flto-report-wpa): Add.
* doc/invoke.texi (-flto-report-wpa): Add.
* lto/lto.c (do_whole_program_analysis): Check for lto-report-wpa.
(lto_main): dito.
From-SVN: r198172
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/common.opt | 4 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 6 | ||||
| -rw-r--r-- | gcc/lto/lto.c | 4 |
4 files changed, 18 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3ea7fa7..7500eb7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2013-04-22 Andi Kleen <ak@linux.intel.com> + + * common.opt (-flto-report-wpa): Add. + * doc/invoke.texi (-flto-report-wpa): Add. + * lto/lto.c (do_whole_program_analysis): Check for lto-report-wpa. + (lto_main): dito. + 2013-04-22 Xinliang David Li <davidxl@google.com> * graph.c (draw_cfg_node_succ_edges): Add branch probility as label. diff --git a/gcc/common.opt b/gcc/common.opt index f0cb9e8..8be32e5 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -1504,6 +1504,10 @@ flto-report Common Report Var(flag_lto_report) Init(0) Report various link-time optimization statistics +flto-report-wpa +Common Report Var(flag_lto_report_wpa) Init(0) +Report various link-time optimization statistics for WPA only + fmath-errno Common Report Var(flag_errno_math) Init(1) Optimization SetByCombined Set errno after built-in math functions diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 782b569..034845d 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -379,7 +379,7 @@ Objective-C and Objective-C++ Dialects}. -fivopts -fkeep-inline-functions -fkeep-static-consts @gol -floop-block -floop-interchange -floop-strip-mine -floop-nest-optimize @gol -floop-parallelize-all -flto -flto-compression-level @gol --flto-partition=@var{alg} -flto-report -fmerge-all-constants @gol +-flto-partition=@var{alg} -flto-report -flto-report-wpa -fmerge-all-constants @gol -fmerge-constants -fmodulo-sched -fmodulo-sched-allow-regmoves @gol -fmove-loop-invariants fmudflap -fmudflapir -fmudflapth -fno-branch-count-reg @gol -fno-default-inline @gol @@ -8455,6 +8455,10 @@ files in LTO mode (via @option{-flto}). Disabled by default. +@item -flto-report-wpa +Like @option{-flto-report}, but only print for the WPA phase of Link +Time Optimization. + @item -fuse-linker-plugin Enables the use of a linker plugin during link-time optimization. This option relies on plugin support in the linker, which is available in gold diff --git a/gcc/lto/lto.c b/gcc/lto/lto.c index 983fa03..f19bbb5 100644 --- a/gcc/lto/lto.c +++ b/gcc/lto/lto.c @@ -3274,7 +3274,7 @@ do_whole_program_analysis (void) } /* Show the LTO report before launching LTRANS. */ - if (flag_lto_report) + if (flag_lto_report || (flag_wpa && flag_lto_report_wpa)) print_lto_report_1 (); if (mem_report_wpa) dump_memory_report (true); @@ -3402,7 +3402,7 @@ lto_main (void) print_lto_report before launching LTRANS. If LTRANS was launched directly by the driver we would not need to do this. */ - if (flag_lto_report) + if (flag_lto_report || (flag_wpa && flag_lto_report_wpa)) print_lto_report_1 (); /* Record the global variables. */ |