procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

combine.c (distribute_notes): Kill REG_EXEC_COUNT.

Browse source 
* combine.c (distribute_notes): Kill REG_EXEC_COUNT.
	* rtl.c (reg_note_name): Likewise.
	* rtl.h (enum reg_note): Likewise.
	* doc/invoke.texi: Likewise.
	* doc/rtl.texi: Likewise.

From-SVN: r63157
This commit is contained in:
Josef Zlomek 2003-02-20 09:54:48 +01:00 • committed by Josef Zlomek
parent c8717368a7
commit 8fa0831669
6 changed files with 10 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2003-02-20 Josef Zlomek <zlomekj@suse.cz>
* combine.c (distribute_notes): Kill REG_EXEC_COUNT.
* rtl.c (reg_note_name): Likewise.
* rtl.h (enum reg_note): Likewise.
* doc/invoke.texi: Likewise.
* doc/rtl.texi: Likewise.
2003-02-20 Josef Zlomek <zlomekj@suse.cz>
* bb-reorder.c (find_traces_1_round): Fix comment typo.

1
gcc/combine.c
View file

@ -12583,7 +12583,6 @@ distribute_notes (notes, from_insn, i3, i2, elim_i2, elim_i1)
{
case REG_BR_PROB:
case REG_BR_PRED:
case REG_EXEC_COUNT:
/* Doesn't matter much where we put this, as long as it's somewhere.
It is preferable to keep these notes on branches, which is most
likely to be i3. */

3
gcc/doc/invoke.texi
View file

@ -4241,8 +4241,7 @@ file The information in this data file is very dependent on the
structure of the generated code, so you must use the same source code
and the same optimization options for both compilations.
With @option{-fbranch-probabilities}, GCC puts a @samp{REG_EXEC_COUNT}
note on the first instruction of each basic block, and a
With @option{-fbranch-probabilities}, GCC puts a
@samp{REG_BR_PROB} note on each @samp{JUMP_INSN} and @samp{CALL_INSN}.
These can be used to improve optimization. Currently, they are only
used in one place: in @file{reorg.c}, instead of guessing which path a

6
gcc/doc/rtl.texi
View file

@ -3283,12 +3283,6 @@ are stored in the @code{REG_NOTES} field of an insn as an
@code{expr_list}.
@table @code
@findex REG_EXEC_COUNT
@item REG_EXEC_COUNT
This is used to indicate the number of times a basic block was executed
according to the profile data. The note is attached to the first insn in
the basic block.
@findex REG_BR_PROB
@item REG_BR_PROB
This is used to specify the ratio of branches to non-branches of a

2
gcc/rtl.c
View file

@ -228,7 +228,7 @@ const char * const reg_note_name[] =
"REG_WAS_0", "REG_RETVAL", "REG_LIBCALL", "REG_NONNEG",
"REG_NO_CONFLICT", "REG_UNUSED", "REG_CC_SETTER", "REG_CC_USER",
"REG_LABEL", "REG_DEP_ANTI", "REG_DEP_OUTPUT", "REG_BR_PROB",
"REG_EXEC_COUNT", "REG_NOALIAS", "REG_SAVE_AREA", "REG_BR_PRED",
"REG_NOALIAS", "REG_SAVE_AREA", "REG_BR_PRED",
"REG_FRAME_RELATED_EXPR", "REG_EH_CONTEXT", "REG_EH_REGION",
"REG_SAVE_NOTE", "REG_MAYBE_DEAD", "REG_NORETURN",
"REG_NON_LOCAL_GOTO", "REG_SETJMP", "REG_ALWAYS_RETURN",

5
gcc/rtl.h
View file

@ -688,11 +688,6 @@ enum reg_note
return. */
REG_BR_PROB,
/* REG_EXEC_COUNT is attached to the first insn of each basic block, and
the first insn after each CALL_INSN. It indicates how many times this
block was executed. */
REG_EXEC_COUNT,
/* Attached to a call insn; indicates that the call is malloc-like and
that the pointer returned cannot alias anything else. */
REG_NOALIAS,