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[Bug tree-optimization/36861] code generation regression with -O3
- From: "lothar at tradescape dot biz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Jul 2008 17:52:50 -0000
- Subject: [Bug tree-optimization/36861] code generation regression with -O3
- References: <bug-36861-11487@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from lothar at tradescape dot biz 2008-07-17 17:52 -------
in reply to #4:
-fno-tree-vectorize does not help
$ /opt2/linux/ix86/bin/g++-4.3.1 -m64 -O3 -fno-tree-vectorize -g -save-temps
-I/opt2/linux/x86_64/include/boost-1_35 -DUSE_OPTIMIZATION=0 -o ./avltest-no
./avltest.cpp
./avltest.cpp:115:2: warning: #warning without optimization
$ time ./avltest-no >/dev/null
real 0m40.528s
user 0m39.902s
sys 0m0.036s
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36861