--- Comment #9 from rguenth at gcc dot gnu dot org 2007-10-31 12:34 ---
Fixed.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
Status|ASSIGNED
--- Comment #8 from rguenth at gcc dot gnu dot org 2007-10-31 12:33 ---
Subject: Bug 33779
Author: rguenth
Date: Wed Oct 31 12:33:05 2007
New Revision: 129796
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129796
Log:
2007-10-31 Richard Guenther <[EMAIL PROTECTED]>
PR
--- Comment #7 from rguenth at gcc dot gnu dot org 2007-10-27 17:30 ---
I'll take this.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
AssignedTo|
--- Comment #6 from rguenth at gcc dot gnu dot org 2007-10-27 17:29 ---
"This goes wrong in extract_muldiv..."
sorry for not pasting my complete analysis (actually the testcase is carefuly
crafted from looking at this code ;)). The recursion through conversions
case CONVERT_EXPR:
--- Comment #5 from tromey at gcc dot gnu dot org 2007-10-27 16:42 ---
I looked at this a little.
This test is a little bit funny because the '+' has undefined
overflow but the '*' does not. Move the cast to make the '+'
have defined overflow, and it works.
What happens is that we cal
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
CC||pinskia at gcc dot gnu dot
|
--- Comment #4 from janis at gcc dot gnu dot org 2007-10-19 16:31 ---
A regression hunt for the first testcase on powerpc-linux identified the
following patch:
http://gcc.gnu.org/viewcvs?view=rev&rev=120649
r120649 | ian | 2007-01-10 21:07:38 + (Wed, 10 Jan 2007)
--
jan
--- Comment #3 from rguenth at gcc dot gnu dot org 2007-10-15 13:32 ---
Only the first testcase is a regression (AFAIK), the second one also fails with
2.95.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
---
--- Comment #2 from rguenth at gcc dot gnu dot org 2007-10-15 13:31 ---
whoops, make the testcase in comment #1
int foo(int i)
{
return ((int)((unsigned)(i + 1) * 4)) / 4;
}
extern void abort(void);
int main()
{
if (foo(0x3fff) != 0)
abort ();
return 0;
}
--
http://g
--- Comment #1 from rguenth at gcc dot gnu dot org 2007-10-15 13:24 ---
Another one:
int foo(int i)
{
return ((int)((unsigned)(i + 1) * 4)) / 4;
}
extern void abort(void);
int main()
{
if (foo(0x3fff) == 0)
abort ();
return 0;
}
--
http://gcc.gnu.org/bugzilla/show_bu
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