------- Comment #24 from lucier at math dot purdue dot edu 2007-01-10 18:49 ------- Tried it again with today's 4.2.0:
euler-34% /pkgs/gcc-4.2.0-test/bin/gcc -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ../configure --prefix=/pkgs/gcc-4.2.0-test --with-gmp=/pkgs/gmp-4.2.1 --with-mpfr=/pkgs/gmp-4.2.1 Thread model: posix gcc version 4.2.0 20070110 (prerelease) The two hot spots were tree SSA to normal : 52.63 (16%) usr 0.04 ( 0%) sys 52.69 (15%) wall 55617 kB ( 8%) ggc tree FRE : 150.81 (46%) usr 0.20 ( 2%) sys 154.00 (45%) wall 18940 kB ( 3%) ggc while tree alias analysis : 1.94 ( 1%) usr 0.58 ( 5%) sys 2.18 ( 1%) wall 387 kB ( 0%) ggc is now very low. Is there a patch than can be back-ported from mainline to fix tree SSA to normal? On mainline there is the tremendous result of tree SSA to normal : 5.23 ( 1%) usr 0.06 ( 0%) sys 5.30 ( 1%) wall 52594 kB ( 7%) ggc On another note, can I change this to be reported against 4.2.0? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854
