Bug#186937: marked as done ([fixed in 3.3] [hppa, PR target/10271] Floating point args don't get reloaded across function calls at -O2)
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and subject line Bug#186937: [hppa, PR target/10271] Floating point args don't get reloaded across function calls at -O2
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>From randolph@tausq.org Sun Mar 30 23:11:10 2003
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Date: Sun, 30 Mar 2003 21:07:45 -0800
From: Randolph Chung <tausq@debian.org>
To: submit@bugs.debian.org
Subject: [hppa, PR target/10271] Floating point args don't get reloaded across function calls at -O2
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[Debian note: this may be related to #185184 and #105816]
When compiling the bug.c code below with -O2, the floating point
argument to the fprintf does not get reloaded for the second fprintf()
call, so the second call prints junk. At -O1 the arguments (r23/r24)
are properly reloaded.
Compile with gcc -O2 -o bug bug.c -lm
$ ./bug
nan
1.422968e-309
With -O1
$ ./bug
nan
nan
------8< bug.c 8<--------
#include <stdio.h>
#include <math.h>
void doprint(double dval)
{
fprintf(stdout, "%e\n", dval);
fprintf(stdout, "%e\n", dval);
}
int main(int argc, char **argv)
{
doprint(log(-8)); /* nan */
return 0;
}
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>From randolph@tausq.org Thu May 01 11:25:39 2003
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Date: Thu, 1 May 2003 07:53:10 -0700
From: Randolph Chung <tausq@debian.org>
To: Matthias Klose <doko@cs.tu-berlin.de>
Cc: 186937-done@bugs.debian.org
Subject: Re: Bug#186937: [hppa, PR target/10271] Floating point args don't get reloaded across function calls at -O2
Message-ID: <20030501145310.GM25257@tausq.org>
Reply-To: Randolph Chung <tausq@debian.org>
References: <20030331050745.GY11333@tausq.org> <[🔎] 16049.17425.407379.478165@gargle.gargle.HOWL>
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In reference to a message from Matthias Klose, dated May 01:
> retitle 186937 [fixed in 3.3] [hppa, PR target/10271] Floating point args don't get reloaded across function calls at -O2
> forwarded 186937 gcc-gnats@gcc.gnu.org
> thanks
actually this is fixed in 3.2.3 release. Closing this bug.
randolph
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