https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34235
--- Comment #11 from Jason Merrill ---
Author: jason
Date: Fri Jan 10 18:53:17 2020
New Revision: 280128
URL: https://gcc.gnu.org/viewcvs?rev=280128&root=gcc&view=rev
Log:
Shorten right-shift again in C++.
Back in SVN r131862 richi removed this
--- Comment #10 from fgccbz1 at greynode dot net 2008-01-26 13:29 ---
My thanks for the fix.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34235
--- Comment #9 from rguenth at gcc dot gnu dot org 2008-01-26 11:27 ---
Subject: Bug 34235
Author: rguenth
Date: Sat Jan 26 11:26:36 2008
New Revision: 131862
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=131862
Log:
2008-01-26 Richard Guenther <[EMAIL PROTECTED]>
PR
--- Comment #8 from rguenth at gcc dot gnu dot org 2008-01-26 11:27 ---
Fixed for 4.3.0.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
Status
--- Comment #7 from rguenth at gcc dot gnu dot org 2008-01-25 23:23 ---
This has been broken since forever.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #6 from rguenth at gcc dot gnu dot org 2008-01-25 23:12 ---
/* If arg is sign-extended and then unsigned-shifted,
we can simulate this with a signed shift in arg's type
only if the extended result is at least twice as wide
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org
--- Comment #5 from rguenth at gcc dot gnu dot org 2008-01-25 22:58 ---
Confirmed.
extern "C" void abort (void);
int main()
{
short x = -1;
unsigned int c = ((unsigned int)x) >> 1;
if (c != 0x7fff)
abort();
return 0;
}
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rguenth at gcc
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
Severity|major |normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34235
--- Comment #4 from fgccbz1 at greynode dot net 2007-11-27 12:12 ---
Oh - and thanks for looking at my bug!
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34235
--- Comment #3 from fgccbz1 at greynode dot net 2007-11-27 12:09 ---
Created an attachment (id=14646)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14646&action=view)
code to reproduce the problem
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34235
--- Comment #2 from fgccbz1 at greynode dot net 2007-11-27 12:08 ---
Sorry - it looks like compiling as c++ is required. I thought I'd eliminated
that issue in my original analysis, but evidently I was wrong.
I see the weird behavior just when compiling with
g++ cast.c -o cast
but not
--- Comment #1 from rguenth at gcc dot gnu dot org 2007-11-26 13:43 ---
Works for me. Please be more specific wrt the version of your compiler and the
used optimization flags.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
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