aboutsummaryrefslogtreecommitdiff
path: root/gcc/doc
diff options
context:
space:
mode:
authorMartin Liska <mliska@suse.cz>2018-05-18 10:42:15 +0200
committerMartin Liska <marxin@gcc.gnu.org>2018-05-18 08:42:15 +0000
commitcdc3b88343e3a306c37ddec9f6b546d412c6f3f8 (patch)
tree71e9d09ab096be24e9f12e5dbbde3ec6630083c8 /gcc/doc
parentc566cc9f7847785bc709daaa3301649f2f03aef9 (diff)
downloadgcc-cdc3b88343e3a306c37ddec9f6b546d412c6f3f8.zip
gcc-cdc3b88343e3a306c37ddec9f6b546d412c6f3f8.tar.gz
gcc-cdc3b88343e3a306c37ddec9f6b546d412c6f3f8.tar.bz2
Support lower and upper limit for -fdbg-cnt flag.
2018-05-18 Martin Liska <mliska@suse.cz> * dbgcnt.c (limit_low): Renamed from limit. (limit_high): New variable. (dbg_cnt_is_enabled): Check for upper limit. (dbg_cnt): Adjust dumping. (dbg_cnt_set_limit_by_index): Add new argument for high value. (dbg_cnt_set_limit_by_name): Likewise. (dbg_cnt_process_single_pair): Parse new format. (dbg_cnt_process_opt): Use strtok. (dbg_cnt_list_all_counters): Remove 'value' and add 'limit_high'. * doc/invoke.texi: Document changes. 2018-05-18 Martin Liska <mliska@suse.cz> * gcc.dg/ipa/ipa-icf-39.c: New test. * gcc.dg/pr68766.c: Adjust pruned output. From-SVN: r260349
Diffstat (limited to 'gcc/doc')
-rw-r--r--gcc/doc/invoke.texi13
1 files changed, 8 insertions, 5 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 4023197..8a3b9c1 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -14331,14 +14331,17 @@ Print the name and the counter upper bound for all debug counters.
@item -fdbg-cnt=@var{counter-value-list}
@opindex fdbg-cnt
-Set the internal debug counter upper bound. @var{counter-value-list}
-is a comma-separated list of @var{name}:@var{value} pairs
-which sets the upper bound of each debug counter @var{name} to @var{value}.
+Set the internal debug counter lower and upper bound. @var{counter-value-list}
+is a comma-separated list of @var{name}:@var{lower_bound}:@var{upper_bound}
+tuples which sets the lower and the upper bound of each debug
+counter @var{name}. The @var{lower_bound} is optional and is zero
+initialized if not set.
All debug counters have the initial upper bound of @code{UINT_MAX};
thus @code{dbg_cnt} returns true always unless the upper bound
is set by this option.
-For example, with @option{-fdbg-cnt=dce:10,tail_call:0},
-@code{dbg_cnt(dce)} returns true only for first 10 invocations.
+For example, with @option{-fdbg-cnt=dce:2:4,tail_call:10},
+@code{dbg_cnt(dce)} returns true only for third and fourth invocation.
+For @code{dbg_cnt(tail_call)} true is returned for first 10 invocations.
@item -print-file-name=@var{library}
@opindex print-file-name