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| author | Pierre-Marie de Rodat <derodat@adacore.com> | 2015-10-19 23:47:35 +0000 |
|---|---|---|
| committer | Pierre-Marie de Rodat <pmderodat@gcc.gnu.org> | 2015-10-19 23:47:35 +0000 |
| commit | 524d9b4b9035ff69f1024ca2c32c7217128f3cf9 (patch) | |
| tree | d4b672674b050b5804bf9a28e4d83b5c24ea0d85 /gcc/timevar.def | |
| parent | 32308c8db4af9260cafcb517fe020dff5280f993 (diff) | |
| download | gcc-524d9b4b9035ff69f1024ca2c32c7217128f3cf9.zip gcc-524d9b4b9035ff69f1024ca2c32c7217128f3cf9.tar.gz gcc-524d9b4b9035ff69f1024ca2c32c7217128f3cf9.tar.bz2 | |
REE: fix uninitialized registers handling
gcc/ChangeLog:
PR rtl-optimization/66790
* df.h (DF_MIR): New macro.
(DF_LAST_PROBLEM_PLUS1): Update to be past DF_MIR
(DF_MIR_INFO_BB): New macro.
(DF_MIR_IN, DF_MIR_OUT): New macros.
(struct df_mir_bb_info): New.
(df_mir): New macro.
(df_mir_add_problem, df_mir_simulate_one_insn): New forward
declarations.
(df_mir_get_bb_info): New.
* df-problems.c (struct df_mir_problem_data): New.
(df_mir_free_bb_info, df_mir_alloc, df_mir_reset,
df_mir_bb_local_compute, df_mir_local_compute, df_mir_init,
df_mir_confluence_0, df_mir_confluence_n,
df_mir_transfer_function, df_mir_free, df_mir_top_dump,
df_mir_bottom_dump, df_mir_verify_solution_start,
df_mir_verify_solution_end): New.
(problem_MIR): New.
(df_mir_add_problem, df_mir_simulate_one_insn): New.
* timevar.def (TV_DF_MIR): New.
* ree.c: Include bitmap.h
(add_removable_extension): Add an INIT_REGS parameter. Use it
to skip zero-extensions that may get an uninitialized register.
(find_removable_extensions): Compute must-initialized registers
using the MIR dataflow problem. Update the call to
add_removable_extension.
(find_and_remove_re): Call df_mir_add_problem.
gcc/testsuite/ChangeLog:
* gnat.dg/opt50.adb: New test.
* gnat.dg/opt50_pkg.adb: New helper.
* gnat.dg/opt50_pkg.ads: New helper.
From-SVN: r229008
Diffstat (limited to 'gcc/timevar.def')
| -rw-r--r-- | gcc/timevar.def | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/timevar.def b/gcc/timevar.def index ac41075..2fbfb17 100644 --- a/gcc/timevar.def +++ b/gcc/timevar.def @@ -115,6 +115,7 @@ DEFTIMEVAR (TV_DF_MD , "df multiple defs") DEFTIMEVAR (TV_DF_RD , "df reaching defs") DEFTIMEVAR (TV_DF_LR , "df live regs") DEFTIMEVAR (TV_DF_LIVE , "df live&initialized regs") +DEFTIMEVAR (TV_DF_MIR , "df must-initialized regs") DEFTIMEVAR (TV_DF_CHAIN , "df use-def / def-use chains") DEFTIMEVAR (TV_DF_WORD_LR , "df live reg subwords") DEFTIMEVAR (TV_DF_NOTE , "df reg dead/unused notes") |