[Bug target/21147] Optimized code is much slower than non-optimized

2005-04-26 Thread vda at port dot imtp dot ilyichevsk dot odessa dot ua
--- Additional Comments From vda at port dot imtp dot ilyichevsk dot odessa dot ua 2005-04-27 05:38 --- Marking as invalid. I found out that this happens on Celeron but doesn't happen on Athlon. Must be instruction scheduling artifact. Same binaries were used: # gcc -O2 -o twofish_O2 t

[Bug target/21147] Optimized code is much slower than non-optimized

2005-04-21 Thread vda at port dot imtp dot ilyichevsk dot odessa dot ua
--- Additional Comments From vda at port dot imtp dot ilyichevsk dot odessa dot ua 2005-04-21 13:36 --- testcase is measuring how many twofish_setkey()'s can be executed per second. By inserting extra 'return 0;' in the body of that function and running the testcase, we can measure where

[Bug target/21147] Optimized code is much slower than non-optimized

2005-04-21 Thread pinskia at gcc dot gnu dot org
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-21 13:13 --- This is x86 specific. -- What|Removed |Added Component|rtl-optimization