subject:"\[Bug target\/38570\] \[arm\] \-mthumb generates sub\-optimal prolog\/epilog"

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2010-01-07 Thread ramana at gcc dot gnu dot org

-- ramana at gcc dot gnu dot org changed: What|Removed |Added Severity|normal |enhancement http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38570

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2009-04-30 Thread ramana at gcc dot gnu dot org

-- ramana at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfir

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2009-05-01 Thread ramana at gcc dot gnu dot org

--- Comment #5 from ramana at gcc dot gnu dot org 2009-05-01 08:39 --- *** Bug 39989 has been marked as a duplicate of this bug. *** -- ramana at gcc dot gnu dot org changed: What|Removed |Added -

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2009-05-03 Thread carrot at google dot com

--- Comment #6 from carrot at google dot com 2009-05-04 02:21 --- We can compute the maximum possible function length first. If the length is not large enough far jump is not necessary, and we can do this optimization safely. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38570

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2009-05-04 Thread rearnsha at gcc dot gnu dot org

--- Comment #7 from rearnsha at gcc dot gnu dot org 2009-05-04 09:41 --- (In reply to comment #6) > We can compute the maximum possible function length first. If the length is > not > large enough far jump is not necessary, and we can do this optimization > safely. > No, it's not th

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2009-05-04 Thread carrot at google dot com

--- Comment #8 from carrot at google dot com 2009-05-04 10:08 --- Sorry for my ignorance to gcc. What types of instructions reload will add? Spilling and loading registers? and more? By reading the the implementation of thumb_far_jump_used_p() I can get the conclusion that if reload thi

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2009-05-05 Thread rearnsha at gcc dot gnu dot org

--- Comment #9 from rearnsha at gcc dot gnu dot org 2009-05-05 10:06 --- (In reply to comment #8) > Sorry for my ignorance to gcc. What types of instructions reload will add? > Spilling and loading registers? and more? > That's pretty much it, but... > By reading the the implementatio

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2009-05-05 Thread carrot at google dot com

--- Comment #10 from carrot at google dot com 2009-05-05 15:32 --- (In reply to comment #9) > (In reply to comment #8) > > Sorry for my ignorance to gcc. What types of instructions reload will add? > > Spilling and loading registers? and more? > > > That's pretty much it, but... Before

[Bug target/38570] [arm] -mthumb generates sub-optimal prolog/epilog

2009-06-22 Thread steven at gcc dot gnu dot org

--- Comment #11 from steven at gcc dot gnu dot org 2009-06-22 16:41 --- IIUC comment #8, this bug depends on bug 29336. -- steven at gcc dot gnu dot org changed: What|Removed |Added --