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* Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
@ 2002-07-11 16:46 Alan Modra
0 siblings, 0 replies; 6+ messages in thread
From: Alan Modra @ 2002-07-11 16:46 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR optimization/7130; it has been noted by GNATS.
From: Alan Modra <amodra@bigpond.net.au>
To: Andreas Jaeger <aj@suse.de>
Cc: yozo@cs.berkeley.edu, gcc-gnats@gcc.gnu.org, gcc-patches@gcc.gnu.org
Subject: Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
Date: Fri, 12 Jul 2002 09:12:20 +0930
On Thu, Jul 11, 2002 at 02:06:55PM +0200, Andreas Jaeger wrote:
> Alan Modra <amodra@bigpond.net.au> writes:
>
> > (And this time, I waited for bootstrap to get through building the stage2
> > compiler before firing off emails.)
>
>
> What about the testsuite? Any new regressions or passes?
New regressions unfortunately. Patch withdrawn until I can figure out
what is going wrong.
> I guess this is on Powerpc-linux?
Yes.
--
Alan Modra
IBM OzLabs - Linux Technology Centre
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
@ 2002-07-11 19:46 Alan Modra
0 siblings, 0 replies; 6+ messages in thread
From: Alan Modra @ 2002-07-11 19:46 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR optimization/7130; it has been noted by GNATS.
From: Alan Modra <amodra@bigpond.net.au>
To: yozo@cs.berkeley.edu, gcc-gnats@gcc.gnu.org, gcc-patches@gcc.gnu.org
Cc:
Subject: Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
Date: Fri, 12 Jul 2002 12:06:06 +0930
The testsuite failures with the previous patch were due to
doloop_modify_runtime not taking into account loop preconditioning.
No new regressions with this patch. Yay!
gcc/ChangeLog
PR optimization/7130
* loop.h (struct loop_info): Add "preconditioned".
* unroll.c (unroll_loop): Set it.
* doloop.c (doloop_modify_runtime): Correct count for unrolled loops.
Hmm, I suppose I should be adding the testcase in gcc.c-torture/execute/
since these get compiled with -funroll-all-loops.
Index: gcc/loop.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/loop.h,v
retrieving revision 1.61
diff -u -p -r1.61 loop.h
--- gcc/loop.h 30 May 2002 20:55:11 -0000 1.61
+++ gcc/loop.h 12 Jul 2002 01:50:43 -0000
@@ -316,6 +316,9 @@ struct loop_info
int has_multiple_exit_targets;
/* Nonzero if there is an indirect jump in the current function. */
int has_indirect_jump;
+ /* Whether loop unrolling has emitted copies of the loop body so
+ that the main loop needs no exit tests. */
+ int preconditioned;
/* Register or constant initial loop value. */
rtx initial_value;
/* Register or constant value used for comparison test. */
Index: gcc/unroll.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/unroll.c,v
retrieving revision 1.169
diff -u -p -r1.169 unroll.c
--- gcc/unroll.c 30 Jun 2002 05:06:01 -0000 1.169
+++ gcc/unroll.c 12 Jul 2002 01:50:46 -0000
@@ -1135,6 +1135,9 @@ unroll_loop (loop, insn_count, strength_
/* Keep track of the unroll factor for the loop. */
loop_info->unroll_number = unroll_number;
+ /* And whether the loop has been preconditioned. */
+ loop_info->preconditioned = loop_preconditioned;
+
/* For each biv and giv, determine whether it can be safely split into
a different variable for each unrolled copy of the loop body.
We precalculate and save this info here, since computing it is
Index: gcc/doloop.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/doloop.c,v
retrieving revision 1.20
diff -u -p -r1.20 doloop.c
--- gcc/doloop.c 24 Jun 2002 02:16:42 -0000 1.20
+++ gcc/doloop.c 12 Jul 2002 01:50:42 -0000
@@ -552,6 +552,7 @@ doloop_modify_runtime (loop, iterations_
{
const struct loop_info *loop_info = LOOP_INFO (loop);
HOST_WIDE_INT abs_inc;
+ HOST_WIDE_INT abs_loop_inc;
int neg_inc;
rtx diff;
rtx sequence;
@@ -595,13 +596,18 @@ doloop_modify_runtime (loop, iterations_
except in cases where the loop never terminates. So we don't
need to use this more costly calculation.
- If the loop has been unrolled, then the loop body has been
- preconditioned to iterate a multiple of unroll_number times. If
- abs_inc is != 1, the full calculation is
-
- t1 = abs_inc * unroll_number;
- n = abs (final - initial) / t1;
- n += (abs (final - initial) % t1) > t1 - abs_inc;
+ If the loop has been unrolled, the full calculation is
+
+ t1 = abs_inc * unroll_number; increment per loop
+ n = abs (final - initial) / t1; full loops
+ n += (abs (final - initial) % t1) != 0; partial loop
+
+ However, in certain cases the unrolled loop will be preconditioned
+ by emitting copies of the loop body with conditional branches,
+ so that the unrolled loop is always a full loop and thus needs
+ no exit tests. In this case we don't want to add the partial
+ loop count. As above, when t1 is a power of two we don't need to
+ worry about overflow.
The division and modulo operations can be avoided by requiring
that the increment is a power of 2 (precondition_loop_p enforces
@@ -667,20 +673,22 @@ doloop_modify_runtime (loop, iterations_
}
}
- if (abs_inc * loop_info->unroll_number != 1)
+ abs_loop_inc = abs_inc * loop_info->unroll_number;
+ if (abs_loop_inc != 1)
{
int shift_count;
- shift_count = exact_log2 (abs_inc * loop_info->unroll_number);
+ shift_count = exact_log2 (abs_loop_inc);
if (shift_count < 0)
abort ();
- if (abs_inc != 1)
+ if (!loop_info->preconditioned)
diff = expand_simple_binop (GET_MODE (diff), PLUS,
- diff, GEN_INT (abs_inc - 1),
+ diff, GEN_INT (abs_loop_inc - 1),
diff, 1, OPTAB_LIB_WIDEN);
- /* (abs (final - initial) + abs_inc - 1) / (abs_inc * unroll_number) */
+ /* (abs (final - initial) + abs_inc * unroll_number - 1)
+ / (abs_inc * unroll_number) */
diff = expand_simple_binop (GET_MODE (diff), LSHIFTRT,
diff, GEN_INT (shift_count),
diff, 1, OPTAB_LIB_WIDEN);
--
Alan Modra
IBM OzLabs - Linux Technology Centre
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
@ 2002-07-11 5:16 Andreas Jaeger
0 siblings, 0 replies; 6+ messages in thread
From: Andreas Jaeger @ 2002-07-11 5:16 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR optimization/7130; it has been noted by GNATS.
From: Andreas Jaeger <aj@suse.de>
To: yozo@cs.berkeley.edu
Cc: gcc-gnats@gcc.gnu.org, gcc-patches@gcc.gnu.org
Subject: Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc
linux with -funroll-all-loops
Date: Thu, 11 Jul 2002 14:06:55 +0200
Alan Modra <amodra@bigpond.net.au> writes:
> (And this time, I waited for bootstrap to get through building the stage2
> compiler before firing off emails.)
What about the testsuite? Any new regressions or passes?
I guess this is on Powerpc-linux?
Andreas
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
@ 2002-07-11 3:16 Alan Modra
0 siblings, 0 replies; 6+ messages in thread
From: Alan Modra @ 2002-07-11 3:16 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR optimization/7130; it has been noted by GNATS.
From: Alan Modra <amodra@bigpond.net.au>
To: yozo@cs.berkeley.edu, gcc-gnats@gcc.gnu.org, gcc-patches@gcc.gnu.org
Cc:
Subject: Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
Date: Thu, 11 Jul 2002 19:38:40 +0930
On Thu, Jul 11, 2002 at 05:21:57PM +0930, Alan Modra wrote:
> doloop.c:doloop_modify_runtime says:
>
> If the loop has been unrolled, then the loop body has been
> preconditioned to iterate a multiple of unroll_number times. If
> abs_inc is != 1, the full calculation is
>
> t1 = abs_inc * unroll_number;
> n = abs (final - initial) / t1;
> n += (abs (final - initial) % t1) > t1 - abs_inc;
>
> This is wrong. Taking the example in the PR, we have
>
> abs_inc = 1
> unroll_number = 4
> abs (final - initial) = 10
>
> => t1 == 4
> abs (final - initial) % t1 == 2
> => n == 2
>
> We want n == 3, to go around the loop fully twice, and once partially.
>
> A little thought shows the correct calculation is
>
> The amount we increment per (partially) unrolled loop
> t1 = abs_inc * unroll_number;
>
> The number of time we'll go fully round the loop.
> n = abs (final - initial) / t1;
>
> Plus any partial loops.
> n += (abs (final - initial) % t1) >= abs_inc;
And a little more thought, prodded by bootstrap failing :), says
Plus any partial loops.
n += (abs (final - initial) % t1) != 0;
Why? Well, GE loops don't care about final - initial being a multiple
of the loop increment. Besides, for unroll_number == 1, the above
calculations ought to agree with this extract from unroll.c
The number of iterations (prior to any loop unrolling) is given by:
n = (abs (final - initial) + abs_inc - 1) / abs_inc.
However, it is possible for the summation to overflow, and a
safer method is:
n = abs (final - initial) / abs_inc;
n += (abs (final - initial) % abs_inc) != 0;
gcc/ChangeLog
PR optimization/7130
* doloop.c (doloop_modify_runtime): Correct count for unrolled loops.
gcc/testsuite/ChangeLog
* gcc.dg/unroll.c: New.
(And this time, I waited for bootstrap to get through building the stage2
compiler before firing off emails.)
--
Alan Modra
IBM OzLabs - Linux Technology Centre
Index: gcc/doloop.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/doloop.c,v
retrieving revision 1.20
diff -u -p -r1.20 doloop.c
--- gcc/doloop.c 24 Jun 2002 02:16:42 -0000 1.20
+++ gcc/doloop.c 11 Jul 2002 09:07:06 -0000
@@ -552,6 +552,7 @@ doloop_modify_runtime (loop, iterations_
{
const struct loop_info *loop_info = LOOP_INFO (loop);
HOST_WIDE_INT abs_inc;
+ HOST_WIDE_INT abs_loop_inc;
int neg_inc;
rtx diff;
rtx sequence;
@@ -601,7 +602,7 @@ doloop_modify_runtime (loop, iterations_
t1 = abs_inc * unroll_number;
n = abs (final - initial) / t1;
- n += (abs (final - initial) % t1) > t1 - abs_inc;
+ n += (abs (final - initial) % t1) != 0;
The division and modulo operations can be avoided by requiring
that the increment is a power of 2 (precondition_loop_p enforces
@@ -667,20 +668,21 @@ doloop_modify_runtime (loop, iterations_
}
}
- if (abs_inc * loop_info->unroll_number != 1)
+ abs_loop_inc = abs_inc * loop_info->unroll_number;
+ if (abs_loop_inc != 1)
{
int shift_count;
- shift_count = exact_log2 (abs_inc * loop_info->unroll_number);
+ shift_count = exact_log2 (abs_loop_inc);
if (shift_count < 0)
abort ();
- if (abs_inc != 1)
- diff = expand_simple_binop (GET_MODE (diff), PLUS,
- diff, GEN_INT (abs_inc - 1),
- diff, 1, OPTAB_LIB_WIDEN);
+ diff = expand_simple_binop (GET_MODE (diff), PLUS,
+ diff, GEN_INT (abs_loop_inc - 1),
+ diff, 1, OPTAB_LIB_WIDEN);
- /* (abs (final - initial) + abs_inc - 1) / (abs_inc * unroll_number) */
+ /* (abs (final - initial) + abs_inc * unroll_number - 1)
+ / (abs_inc * unroll_number) */
diff = expand_simple_binop (GET_MODE (diff), LSHIFTRT,
diff, GEN_INT (shift_count),
diff, 1, OPTAB_LIB_WIDEN);
Index: gcc/testsuite/gcc.dg/unroll.c
===================================================================
RCS file: gcc/testsuite/gcc.dg/unroll.c
diff -N gcc/testsuite/gcc.dg/unroll.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ gcc/testsuite/gcc.dg/unroll.c 11 Jul 2002 09:31:12 -0000
@@ -0,0 +1,39 @@
+/* PR opt/7130 */
+/* { dg-do run } */
+/* { dg-options "-O2 -funroll-all-loops" } */
+
+#define TYPE long
+
+void
+scale (TYPE *alpha, TYPE *x, int n)
+{
+ int i, ix;
+
+ if (*alpha != 1)
+ for (i = 0, ix = 0; i < n; i++, ix += 2)
+ {
+ TYPE tmpr, tmpi;
+ tmpr = *alpha * x[ix];
+ tmpi = *alpha * x[ix + 1];
+ x[ix] = tmpr;
+ x[ix + 1] = tmpi;
+ }
+}
+
+int
+main (void)
+{
+ int i;
+ TYPE x[10];
+ TYPE alpha = 2;
+
+ for (i = 0; i < 10; i++)
+ x[i] = i;
+
+ scale (&alpha, x, 5);
+
+ if (x[9] != 18)
+ abort ();
+
+ return 0;
+}
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
@ 2002-07-11 0:56 Alan Modra
0 siblings, 0 replies; 6+ messages in thread
From: Alan Modra @ 2002-07-11 0:56 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR optimization/7130; it has been noted by GNATS.
From: Alan Modra <amodra@bigpond.net.au>
To: yozo@cs.berkeley.edu
Cc: gcc-gnats@gcc.gnu.org, gcc-patches@gcc.gnu.org
Subject: Re: optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
Date: Thu, 11 Jul 2002 17:21:57 +0930
doloop.c:doloop_modify_runtime says:
If the loop has been unrolled, then the loop body has been
preconditioned to iterate a multiple of unroll_number times. If
abs_inc is != 1, the full calculation is
t1 = abs_inc * unroll_number;
n = abs (final - initial) / t1;
n += (abs (final - initial) % t1) > t1 - abs_inc;
This is wrong. Taking the example in the PR, we have
abs_inc = 1
unroll_number = 4
abs (final - initial) = 10
=> t1 == 4
abs (final - initial) % t1 == 2
=> n == 2
We want n == 3, to go around the loop fully twice, and once partially.
A little thought shows the correct calculation is
The amount we increment per (partially) unrolled loop
t1 = abs_inc * unroll_number;
The number of time we'll go fully round the loop.
n = abs (final - initial) / t1;
Plus any partial loops.
n += (abs (final - initial) % t1) >= abs_inc;
PR optimization/7130
* doloop.c (doloop_modify_runtime): Correct count for unrolled loops.
This needs to go on the 3.1 branch too. OK, assuming my powerpc-linux
bootstrap and regression test passes?
--
Alan Modra
IBM OzLabs - Linux Technology Centre
Index: gcc/doloop.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/doloop.c,v
retrieving revision 1.20
diff -u -p -r1.20 doloop.c
--- gcc/doloop.c 24 Jun 2002 02:16:42 -0000 1.20
+++ gcc/doloop.c 11 Jul 2002 07:49:43 -0000
@@ -552,6 +552,7 @@ doloop_modify_runtime (loop, iterations_
{
const struct loop_info *loop_info = LOOP_INFO (loop);
HOST_WIDE_INT abs_inc;
+ HOST_WIDE_INT abs_loop_inc;
int neg_inc;
rtx diff;
rtx sequence;
@@ -601,7 +602,7 @@ doloop_modify_runtime (loop, iterations_
t1 = abs_inc * unroll_number;
n = abs (final - initial) / t1;
- n += (abs (final - initial) % t1) > t1 - abs_inc;
+ n += (abs (final - initial) % t1) >= abs_inc;
The division and modulo operations can be avoided by requiring
that the increment is a power of 2 (precondition_loop_p enforces
@@ -667,20 +668,21 @@ doloop_modify_runtime (loop, iterations_
}
}
- if (abs_inc * loop_info->unroll_number != 1)
+ abs_loop_inc = abs_inc * loop_info->unroll_number;
+ if (abs_loop_inc != 1)
{
int shift_count;
- shift_count = exact_log2 (abs_inc * loop_info->unroll_number);
+ shift_count = exact_log2 (abs_loop_inc);
if (shift_count < 0)
abort ();
- if (abs_inc != 1)
- diff = expand_simple_binop (GET_MODE (diff), PLUS,
- diff, GEN_INT (abs_inc - 1),
- diff, 1, OPTAB_LIB_WIDEN);
+ diff = expand_simple_binop (GET_MODE (diff), PLUS,
+ diff, GEN_INT (abs_loop_inc - abs_inc),
+ diff, 1, OPTAB_LIB_WIDEN);
- /* (abs (final - initial) + abs_inc - 1) / (abs_inc * unroll_number) */
+ /* (abs (final - initial) + abs_inc * unroll_number - abs_inc)
+ / (abs_inc * unroll_number) */
diff = expand_simple_binop (GET_MODE (diff), LSHIFTRT,
diff, GEN_INT (shift_count),
diff, 1, OPTAB_LIB_WIDEN);
^ permalink raw reply [flat|nested] 6+ messages in thread
* optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
@ 2002-06-25 19:26 yozo
0 siblings, 0 replies; 6+ messages in thread
From: yozo @ 2002-06-25 19:26 UTC (permalink / raw)
To: gcc-gnats
>Number: 7130
>Category: optimization
>Synopsis: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Tue Jun 25 18:16:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: yozo@cs.berkeley.edu
>Release: gcc-3.1
>Organization:
>Environment:
powerpc-unknown-linux-gnu
PowerPC 750 (G3), PowerBook G3 Series (Wallstreet),
Linux-2.14.19-pre10, Glibc 2.2.5
Configured with: ../gcc-3.1/configure --prefix=/usr --enable-shared --enable-threads=posix --with-slibdir=/lib
>Description:
Wrong code is generated for some loops when
-O3 -funroll-all-loops option is used.
Attached (unroll-test_e.i) is the intermediate file
generated by
gcc -v -save-temps -O3 -funroll-all-loops -o unroll_test
unroll-test_e.c
The code performs a simple scaling of a floating-point
vector. When the loop iteration is 5, 6, or 7, the
only the first four iteration is done, leaving the last
1, 2, or 3 vector elements unmodified (see scale() in the
source code).
The output of above command is
Reading specs from /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/specs
Configured with: ../gcc-3.1/configure --prefix=/usr --enable-shared --enable-threads=posix --with-slibdir=/lib
Thread model: posix
gcc version 3.1
/usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/cpp0 -lang-c -v -D__GNUC__=3 -D__GNUC_MINOR__=1 -D__GNUC_PATCHLEVEL__=0 -DPPC -D__ELF__ -Dpowerpc -D__PPC__ -D__ELF__ -D__powerpc__ -D__PPC -D__powerpc -Acpu=powerpc -Amachine=powerpc -D__OPTIMIZE__ -D__STDC_HOSTED__=1 -D_CALL_SYSV -D_BIG_ENDIAN -D__BIG_ENDIAN__ -Amachine=bigendian -D_ARCH_PPC -D__unix__ -D__gnu_linux__ -D__linux__ -Dunix -D__unix -Dlinux -D__linux -Asystem=unix -Asystem=posix unroll-test_e.c unroll-test_e.i
GNU CPP version 3.1 (cpplib) (PowerPC GNU/Linux)
ignoring nonexistent directory "/usr/powerpc-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/include
/usr/include
End of search list.
/usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/cc1 -fpreprocessed unroll-test_e.i -quiet -dumpbase unroll-test_e.c -O3 -version -funroll-all-loops -o unroll-test_e.s
GNU CPP version 3.1 (cpplib) (PowerPC GNU/Linux)
GNU C version 3.1 (powerpc-unknown-linux-gnu)
compiled by GNU C version 3.1.
as -mppc -V -Qy -o unroll-test_e.o unroll-test_e.s
GNU assembler version 2.12.1 (powerpc-unknown-linux-gnu) using BFD version 2.12.1
/usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/collect2 --eh-frame-hdr -V -Qy -m elf32ppclinux -dynamic-linker /lib/ld.so.1 -o unroll_test /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/../../../crt1.o /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/../../../crti.o /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/crtbegin.o -L/usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1 -L/usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/../../.. unroll-test_e.o -lgcc -lgcc_eh -lc -lgcc -lgcc_eh /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/crtsavres.o /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/crtend.o /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.1/../../../crtn.o
GNU ld version 2.12.1
Supported emulations:
elf32ppclinux
elf32ppc
elf32ppcsim
The problem was discovered while compiling atlas-3.4.1.
-Yozo
>How-To-Repeat:
Compile the source file with
gcc -O3 -funroll-all-loops -o unroll_test unroll_test_e.c
Run the program with
./unroll_test
Notice the element x[9] is not changed even though it
is supposed to be multiplied by two.
>Fix:
Don't use "-funroll-all-loops".
>Release-Note:
>Audit-Trail:
>Unformatted:
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2002-07-12 2:46 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2002-07-11 16:46 optimization/7130: miscompiled code for gcc-3.1 in powerpc linux with -funroll-all-loops Alan Modra
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2002-07-11 19:46 Alan Modra
2002-07-11 5:16 Andreas Jaeger
2002-07-11 3:16 Alan Modra
2002-07-11 0:56 Alan Modra
2002-06-25 19:26 yozo
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