--- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-30
04:09 ---
This testcase might or might not also cause the problem on before the tree-ssa
merge but it is the
reduced from .optimize tree dump:
void FFT(int NumSamples, float *RealOut, float ar1)
{
int i5, n, j, i,
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-30
03:30 ---
And here is the interesting part, PRE does not move a redundant expression out
of a loop (well it does
but it is only out of the inner most loop).
Confirmed, reduced testcase, doing -fno-tree-PRE causes u
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-30
02:43 ---
(In reply to comment #2)
> This is broken since the tree-ssa merge.
Then this most likely just a latent bug and you can generate a testcase which
fails before the tree-ssa
merge. I will try to reduce th
--- Additional Comments From schwab at suse dot de 2005-01-30 02:33 ---
This is broken since the tree-ssa merge.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19698
--
What|Removed |Added
Keywords||compile-time-hog
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.c
--- Additional Comments From schwab at suse dot de 2005-01-29 19:18 ---
Created an attachment (id=8102)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8102&action=view)
Test case
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19698
