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authorrakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4>2003-07-30 19:23:34 +0000
committerrakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4>2003-07-30 19:23:34 +0000
commitcf40db41ee40522222ef279f708710d580c944ad (patch)
tree3736c245736a667b97a048cf693be5fe11ae12ef /gcc/combine.c
parent5aecb2e6ee34db3e30866d9407c1156be5ff04fd (diff)
downloadgcc-cf40db41ee40522222ef279f708710d580c944ad.tar.gz
* combine.c (distribute_notes): Cancel REG_VALUE_PROFILE notes.
* gcov-io.h (GCOV_FIRST_VALUE_COUNTER, GCOV_LAST_VALUE_COUNTER, GCOV_N_VALUE_COUNTERS): New. * profile.c (compute_value_histograms): New static function. (branch_prob): Read back the value histograms. * rtl.c (reg_note_name): Add name for REG_VALUE_PROFILE note. * rtl.h (enum reg_note): Add REG_VALUE_PROFILE note. * value-prof.c: Add comment on reading the profile. * value-prof.h (COUNTER_FOR_HIST_TYPE, HIST_TYPE_FOR_COUNTER): New. * doc/invoke.texi (-fprofile-values): Document behavior with -fbranch-probabilities. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@69969 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/combine.c')
-rw-r--r--gcc/combine.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c
index de7ace43a2b..e3c1cf6ec7a 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -12456,6 +12456,10 @@ distribute_notes (rtx notes, rtx from_insn, rtx i3, rtx i2)
place = i3;
break;
+ case REG_VALUE_PROFILE:
+ /* Just get rid of this note, as it is unused later anyway. */
+ break;
+
case REG_VTABLE_REF:
/* ??? Should remain with *a particular* memory load. Given the
nature of vtable data, the last insn seems relatively safe. */