http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31528
Jan Hubicka changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31528
--- Comment #11 from Joerg Wunsch 2010-11-11
10:59:42 UTC ---
(In reply to comment #10)
> Can you, please, test if current mainline behave more resonably?
Well, I had to fix bug #46426 first ...
Yes, that looks good now. Compiling the origina
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31528
Jan Hubicka changed:
What|Removed |Added
CC||hubicka at gcc dot gnu.org
Known to fa
--- Comment #9 from abnikant dot singh at atmel dot com 2010-09-07 11:36
---
gcc version 4.6.0 20100907 (experimental) is not performing the inline in -Os
for the test case:
#define UCSRA (*(volatile unsigned char *)0x2B)
#define UDRE 5
#define UDR (*(volatile unsigned char *)0x2C)
--- Comment #8 from rguenth at gcc dot gnu dot org 2007-11-22 22:00 ---
Same results on current trunk. Early inlining is already doing it because we
think putchs size (4 insns) when inlined will reduce the compilation units
size by 4 insns (the out-of-line copy of putch).
putchs IL bef
--- Comment #7 from j at uriah dot heep dot sax dot de 2007-04-10 21:04
---
Changed target triplet from avr-*-* to *-*-* as obviously, at least some
of GCC's mainstream targets are affected by that bug as well (perhaps
even *any* target).
--
j at uriah dot heep dot sax dot de change
--- Comment #6 from j at uriah dot heep dot sax dot de 2007-04-10 17:15
---
(In reply to comment #5)
> Inlining decisions are based on heuristics. What works for one
> target may not work quite as well for another. In this case, it
> seems that for AVR the heuristics are not the best.
--- Comment #4 from j at uriah dot heep dot sax dot de 2007-04-10 15:38
---
This code snippet can also be run through the i386 compiler (even though
the generated code will obviously be nonsensical). I've only got an older
version of that compiler at hand:
gcc41 (GCC) 4.1.2 20061229 (
--- Comment #3 from j at uriah dot heep dot sax dot de 2007-04-10 14:40
---
Created an attachment (id=13347)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13347&action=view)
Generated assembly code with -Os -fno-inline.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31528
--- Comment #2 from j at uriah dot heep dot sax dot de 2007-04-10 14:40
---
Created an attachment (id=13346)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13346&action=view)
Generated assembly code with -Os.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31528
--- Comment #1 from j at uriah dot heep dot sax dot de 2007-04-10 14:38
---
Created an attachment (id=13345)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13345&action=view)
Test case for bug 66690.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31528
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