* [Bug target/15822] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
@ 2004-06-04 16:02 ` ro at gcc dot gnu dot org
2004-06-04 16:29 ` cvs-commit at gcc dot gnu dot org
` (15 subsequent siblings)
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From: ro at gcc dot gnu dot org @ 2004-06-04 16:02 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ro at gcc dot gnu dot org 2004-06-04 16:01 -------
Your patch
2004-05-28 Paolo Bonzini <bonzini@gnu.org>
Roger Sayle <roger@eyesopen.com>
PR rtl-optimization/15649
Add LTGT_EXPR and improve pretty-printing of unordered
comparisons.
is most likely causing those testsuite regressions. Please fix.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |bonzini at gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
2004-06-04 16:02 ` [Bug target/15822] " ro at gcc dot gnu dot org
@ 2004-06-04 16:29 ` cvs-commit at gcc dot gnu dot org
2004-06-04 16:38 ` [Bug target/15822] [3.5 Regression] " pinskia at gcc dot gnu dot org
` (14 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-06-04 16:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-06-04 16:29 -------
Subject: Bug 15822
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: bonzini@gcc.gnu.org 2004-06-04 16:29:35
Modified files:
gcc : dojump.c ChangeLog
Log message:
2004-06-04 Paolo Bonzini <bonzini@gnu.org>
PR target/15822
* dojump.c (do_jump): Fix uninitialized variable tcode1.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dojump.c.diff?cvsroot=gcc&r1=1.17&r2=1.18
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3840&r2=2.3841
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
2004-06-04 16:02 ` [Bug target/15822] " ro at gcc dot gnu dot org
2004-06-04 16:29 ` cvs-commit at gcc dot gnu dot org
@ 2004-06-04 16:38 ` pinskia at gcc dot gnu dot org
2004-06-04 16:51 ` ro at techfak dot uni-bielefeld dot de
` (13 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-04 16:38 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-06-04 16:38 -------
Is this fixed after Paolo's patch?
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Keywords| |wrong-code
Summary|Several alpha testsuite |[3.5 Regression] Several
|regressions: gcc.c- |alpha testsuite regressions:
|torture/execute/ieee/fp-cmp-|gcc.c-
|[458].c |torture/execute/ieee/fp-cmp-
| |[458].c
Target Milestone|--- |3.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (2 preceding siblings ...)
2004-06-04 16:38 ` [Bug target/15822] [3.5 Regression] " pinskia at gcc dot gnu dot org
@ 2004-06-04 16:51 ` ro at techfak dot uni-bielefeld dot de
2004-06-04 18:34 ` bonzini at gnu dot org
` (12 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: ro at techfak dot uni-bielefeld dot de @ 2004-06-04 16:51 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ro at techfak dot uni-bielefeld dot de 2004-06-04 16:51 -------
Subject: Re: [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
A quick manual test (just recompiling dojump.c and relinking cc1) confirms
that fp-cmp-4.c passes now at -O0. I'll do a full bootstrap to check.
The compare-fp-1.x0 test, on the other hand, fails with
Floating point exception
but adding -mieee lets it pass. So I suppose that those tests should go
into gcc.c-torture/execute/ieee instead of just gcc.c-torture/execute.
Rainer
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (3 preceding siblings ...)
2004-06-04 16:51 ` ro at techfak dot uni-bielefeld dot de
@ 2004-06-04 18:34 ` bonzini at gnu dot org
2004-06-04 18:34 ` cvs-commit at gcc dot gnu dot org
` (11 subsequent siblings)
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From: bonzini at gnu dot org @ 2004-06-04 18:34 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bonzini at gnu dot org 2004-06-04 18:34 -------
Subject: Re: [3.5 Regression] Several alpha testsuite regressions:
gcc.c-torture/execute/ieee/fp-cmp-[458].c
> but adding -mieee lets it pass. So I suppose that those tests should go
> into gcc.c-torture/execute/ieee instead of just gcc.c-torture/execute.
"The resulting code is less efficient but is able to correctly support
denormalized numbers and exceptional IEEE values such as not-a-number
and plus/minus infinity." (from gcc.info).
This is definitely the case, I'm committing the patch to move these tests.
Paolo
2004-06-04 Paolo Bonzini <bonzini@gnu.org>
PR target/15822
* gcc.c-torture/execute/compare-fp-1.c,
gcc.c-torture/execute/compare-fp-2.c,
gcc.c-torture/execute/compare-fp-3.c,
gcc.c-torture/execute/compare-fp-4.c,
gcc.c-torture/execute/compare-fp-3.x,
gcc.c-torture/execute/compare-fp-4.x: Moved...
* gcc.c-torture/execute/ieee/compare-fp-1.c,
gcc.c-torture/execute/ieee/compare-fp-2.c,
gcc.c-torture/execute/ieee/compare-fp-3.c,
gcc.c-torture/execute/ieee/compare-fp-4.c,
gcc.c-torture/execute/ieee/compare-fp-3.x,
gcc.c-torture/execute/ieee/compare-fp-4.x: ...here.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (4 preceding siblings ...)
2004-06-04 18:34 ` bonzini at gnu dot org
@ 2004-06-04 18:34 ` cvs-commit at gcc dot gnu dot org
2004-06-04 19:38 ` pinskia at gcc dot gnu dot org
` (10 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-06-04 18:34 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-06-04 18:34 -------
Subject: Bug 15822
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: bonzini@gcc.gnu.org 2004-06-04 18:34:22
Modified files:
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.c-torture/execute/ieee: compare-fp-1.c
compare-fp-2.c
compare-fp-3.c
compare-fp-3.x
compare-fp-4.c
compare-fp-4.x
Removed files:
gcc/testsuite/gcc.c-torture/execute: compare-fp-1.c
compare-fp-2.c
compare-fp-3.c
compare-fp-3.x
compare-fp-4.c
compare-fp-4.x
Log message:
2004-06-04 Paolo Bonzini <bonzini@gnu.org>
PR target/15822
* gcc.c-torture/execute/compare-fp-1.c,
gcc.c-torture/execute/compare-fp-2.c,
gcc.c-torture/execute/compare-fp-3.c,
gcc.c-torture/execute/compare-fp-4.c,
gcc.c-torture/execute/compare-fp-3.x,
gcc.c-torture/execute/compare-fp-4.x: Moved...
* gcc.c-torture/execute/ieee/compare-fp-1.c,
gcc.c-torture/execute/ieee/compare-fp-2.c,
gcc.c-torture/execute/ieee/compare-fp-3.c,
gcc.c-torture/execute/ieee/compare-fp-4.c,
gcc.c-torture/execute/ieee/compare-fp-3.x,
gcc.c-torture/execute/ieee/compare-fp-4.x: ...here.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3810&r2=1.3811
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/compare-fp-1.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/compare-fp-2.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/compare-fp-3.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/compare-fp-3.x.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/compare-fp-4.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/compare-fp-4.x.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/compare-fp-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/compare-fp-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/compare-fp-3.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/compare-fp-3.x.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/compare-fp-4.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/compare-fp-4.x.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (5 preceding siblings ...)
2004-06-04 18:34 ` cvs-commit at gcc dot gnu dot org
@ 2004-06-04 19:38 ` pinskia at gcc dot gnu dot org
2004-06-07 17:24 ` ro at techfak dot uni-bielefeld dot de
` (9 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-04 19:38 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-06-04 19:38 -------
Fixed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (6 preceding siblings ...)
2004-06-04 19:38 ` pinskia at gcc dot gnu dot org
@ 2004-06-07 17:24 ` ro at techfak dot uni-bielefeld dot de
2004-06-07 17:26 ` pinskia at gcc dot gnu dot org
` (8 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: ro at techfak dot uni-bielefeld dot de @ 2004-06-07 17:24 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ro at techfak dot uni-bielefeld dot de 2004-06-07 17:24 -------
Subject: Re: [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
After moving the new tests to gcc.c-torture/execute/ieee, all but two
failures are gone on alpha-dec-osf{4.0f, 5.1b}:
FAIL: gcc.c-torture/execute/ieee/compare-fp-1.c compilation, -O3 -fomit-frame-pointer
UNRESOLVED: gcc.c-torture/execute/ieee/compare-fp-1.c execution, -O3 -fomit-frame-pointer
FAIL: gcc.c-torture/execute/ieee/compare-fp-1.c compilation, -O3 -g
UNRESOLVED: gcc.c-torture/execute/ieee/compare-fp-1.c execution, -O3 -g
/vol/gnu/src/gcc/gcc-dist/gcc/testsuite/gcc.c-torture/execute/ieee/compare-fp-1.c: In function `main':
/vol/gnu/src/gcc/gcc-dist/gcc/testsuite/gcc.c-torture/execute/ieee/compare-fp-1.c:32: internal compiler error: Segmentation fault
It can be reproduced with
cc1 -O3 compare-fp-1.i
The stacktrace is as follows:
Program received signal SIGSEGV, Segmentation fault.
0x00000001202fb63c in register_operand (op=0x4282a0, mode=DImode) at /vol/gnu/src/gcc/gcc-dist/gcc/recog.c:1029
(gdb) where
#0 0x00000001202fb63c in register_operand (op=0x4282a0, mode=DImode) at /vol/gnu/src/gcc/gcc-dist/gcc/recog.c:1029
#1 0x00000001201c0410 in alpha_emit_setcc (code=UNORDERED) at /vol/gnu/src/gcc/gcc-dist/gcc/config/alpha/alpha.c:3312
#2 0x000000012031f80c in gen_sunordered (operand0=0x4282a0) at insn-emit.c:5216
#3 0x00000001202e49cc in emit_store_flag (target=0x402a60, code=CONST_DOUBLE, op0=0x4282a0, op1=0x1c090, mode=SFmode, unsignedp=0, normalizep=1) at /vol/gnu/src/gcc/gcc-dist/gcc/expmed.c:4569
#4 0x000000012020105c in do_store_flag (exp=0x4282a0, target=0x402a60, mode=DImode, only_cheap=0) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.c:9891
#5 0x00000001201ee4b0 in expand_expr_real_1 (exp=0x427360, target=0x42, tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.c:8309
#6 0x00000001201fd644 in expand_expr_real (exp=0x4282a0, target=0x1c090, tmode=4358816, modifier=66, alt_rtl=0x408d20) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.c:6384
#7 0x00000001201ffdf0 in store_expr (exp=0x4282a0, target=0x1c090, want_value=9) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.h:533
#8 0x0000000120201fc8 in expand_assignment (to=0x42, from=0x301540, want_value=114832) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.c:3985
#9 0x00000001201eb1f0 in expand_expr_real_1 (exp=0x3014f0, target=0x42, tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.c:8924
#10 0x00000001201fd7dc in expand_expr_real (exp=0x4282a0, target=0x1c090, tmode=4358816, modifier=66, alt_rtl=0x408d20) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.c:6378
#11 0x00000001201ea2fc in expand_expr_real_1 (exp=0x36b230, target=0x42, tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.h:533
#12 0x00000001201fd644 in expand_expr_real (exp=0x4282a0, target=0x1c090, tmode=4358816, modifier=66, alt_rtl=0x408d20) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.c:6384
#13 0x00000001201f021c in expand_expr_real_1 (exp=0x421bd0, target=0x42, tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x11fffbe20) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.h:533
#14 0x00000001201fd644 in expand_expr_real (exp=0x4282a0, target=0x1c090, tmode=4358816, modifier=66, alt_rtl=0x408d20) at /vol/gnu/src/gcc/gcc-dist/gcc/expr.c:6384
#15 0x000000012011d370 in expand_expr_stmt_value (exp=0x4282a0, want_value=66, maybe_last=-1347440721) at /vol/gnu/src/gcc/gcc-dist/gcc/stmt.c:2128
#16 0x000000012029090c in tree_rest_of_compilation (fndecl=0x4282a0, nested_p=9) at /vol/gnu/src/gcc/gcc-dist/gcc/tree-optimize.c:561
#17 0x000000012007e368 in c_expand_body (fndecl=0x4282a0) at /vol/gnu/src/gcc/gcc-dist/gcc/c-decl.c:6374
#18 0x0000000120292a30 in cgraph_expand_function (node=0x4282a0) at /vol/gnu/src/gcc/gcc-dist/gcc/cgraphunit.c:794
#19 0x0000000120293c64 in cgraph_optimize () at /vol/gnu/src/gcc/gcc-dist/gcc/cgraphunit.c:1668
#20 0x00000001200c7388 in c_objc_common_finish_file () at /vol/gnu/src/gcc/gcc-dist/gcc/c-objc-common.c:240
#21 0x0000000120065c08 in finish_file () at /vol/gnu/src/gcc/gcc-dist/gcc/c-lang.c:213
#22 0x00000001200bcb24 in c_common_parse_file (set_yydebug=0) at /vol/gnu/src/gcc/gcc-dist/gcc/c-opts.c:1240
#23 0x00000001200e655c in toplev_main (argc=114832, argv=0x4282a0) at /vol/gnu/src/gcc/gcc-dist/gcc/toplev.c:1654
#24 0x00000001200da408 in main (argc=0, argv=0x7) at /vol/gnu/src/gcc/gcc-dist/gcc/main.c:35
Rainer
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (7 preceding siblings ...)
2004-06-07 17:24 ` ro at techfak dot uni-bielefeld dot de
@ 2004-06-07 17:26 ` pinskia at gcc dot gnu dot org
2004-06-07 17:28 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-07 17:26 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-06-07 17:26 -------
Reopening for the last few failures.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (8 preceding siblings ...)
2004-06-07 17:26 ` pinskia at gcc dot gnu dot org
@ 2004-06-07 17:28 ` pinskia at gcc dot gnu dot org
2004-06-08 16:03 ` bonzini at gnu dot org
` (6 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-07 17:28 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords|wrong-code |ice-on-valid-code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (9 preceding siblings ...)
2004-06-07 17:28 ` pinskia at gcc dot gnu dot org
@ 2004-06-08 16:03 ` bonzini at gnu dot org
2004-06-08 21:29 ` bonzini at gnu dot org
` (5 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: bonzini at gnu dot org @ 2004-06-08 16:03 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bonzini at gnu dot org 2004-06-08 16:03 -------
Created an attachment (id=6493)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6493&action=view)
reduced testcase, segfaults at -O1 or higher
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (10 preceding siblings ...)
2004-06-08 16:03 ` bonzini at gnu dot org
@ 2004-06-08 21:29 ` bonzini at gnu dot org
2004-06-08 21:38 ` bonzini at gnu dot org
` (4 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: bonzini at gnu dot org @ 2004-06-08 21:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bonzini at gnu dot org 2004-06-08 21:29 -------
Created an attachment (id=6495)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6495&action=view)
even more reduced testcase, independent of patch
--
What |Removed |Added
----------------------------------------------------------------------------
Attachment #6493 is|0 |1
obsolete| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (11 preceding siblings ...)
2004-06-08 21:29 ` bonzini at gnu dot org
@ 2004-06-08 21:38 ` bonzini at gnu dot org
2004-06-08 21:41 ` bonzini at gnu dot org
` (3 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: bonzini at gnu dot org @ 2004-06-08 21:38 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bonzini at gnu dot org 2004-06-08 21:38 -------
int main() {
return __builtin_isunordered (1.0,4.0);
}
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |mark at codesourcery dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (12 preceding siblings ...)
2004-06-08 21:38 ` bonzini at gnu dot org
@ 2004-06-08 21:41 ` bonzini at gnu dot org
2004-06-09 19:18 ` ro at techfak dot uni-bielefeld dot de
` (2 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: bonzini at gnu dot org @ 2004-06-08 21:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bonzini at gnu dot org 2004-06-08 21:41 -------
This fails at -O0 as well:
int main() {
return __builtin_isunordered (1.0,4.0);
}
so this really egregious bug predates my patch: basically, __builtin_is*
functions are broken whenever their arguments are both constants, because we do
not fold them and the alpha expander breaks. This is quite serious; I do not
know to what extent it applies for 3.4.1, but the patch below seems quite safe.
I will test it tomorrow on i686-pc-linux-gnu, I would appreciate full testing
on alpha as well.
--- gcc-save/gcc/fold-const.c 2004-05-28 20:30:47.000000000 +0200
+++ gcc/gcc/fold-const.c 2004-06-08 20:00:36.000000000 +0200
@@ -7365,6 +7572,14 @@
case GT_EXPR:
case LE_EXPR:
case GE_EXPR:
+ case UNLE_EXPR:
+ case UNLT_EXPR:
+ case UNGE_EXPR:
+ case UNGT_EXPR:
+ case UNEQ_EXPR:
+ case LTGT_EXPR:
+ case UNORDERED_EXPR:
+ case ORDERED_EXPR:
/* If one arg is a real or integer constant, put it last. */
if (tree_swap_operands_p (arg0, arg1, true))
return fold (build2 (swap_tree_comparison (code), type, arg1, arg0));
@@ -9964,8 +10361,22 @@
tree tem;
int invert;
- /* From here on, the only cases we handle are when the result is
- known to be a constant.
+ /* Two real constants can be compared explicitly from the tree
+ code. */
+ if (TREE_CODE (op0) == REAL_CST && TREE_CODE (op1) == REAL_CST)
+ {
+ REAL_VALUE_TYPE cst0 = TREE_REAL_CST (arg0);
+ REAL_VALUE_TYPE cst1 = TREE_REAL_CST (arg0);
+ int result = real_compare (code, &cst0, &cst1);
+ tem = result ? integer_one_node : integer_zero_node;
+ if (TREE_CODE (type) == BOOLEAN_TYPE)
+ return lang_hooks.truthvalue_conversion (tem);
+ else
+ return tem;
+ }
+
+ /* The only cases we handle here are when the result is known to be a
+ constant.
To compute GT, swap the arguments and do LT.
To compute GE, do LT and invert the result.
@@ -9980,9 +10391,6 @@
code = swap_tree_comparison (code);
}
- /* Note that it is safe to invert for real values here because we
- will check below in the one case that it matters. */
-
tem = NULL_TREE;
invert = 0;
if (code == NE_EXPR || code == GE_EXPR)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (13 preceding siblings ...)
2004-06-08 21:41 ` bonzini at gnu dot org
@ 2004-06-09 19:18 ` ro at techfak dot uni-bielefeld dot de
2004-06-09 19:43 ` ro at techfak dot uni-bielefeld dot de
2004-06-09 21:05 ` pinskia at gcc dot gnu dot org
16 siblings, 0 replies; 18+ messages in thread
From: ro at techfak dot uni-bielefeld dot de @ 2004-06-09 19:18 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ro at techfak dot uni-bielefeld dot de 2004-06-09 19:18 -------
Subject: Re: [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
bonzini at gnu dot org writes:
> I will test it tomorrow on i686-pc-linux-gnu, I would appreciate full testing
> on alpha as well.
Mainline bootstrap on alpha-dec-osf{4.0f, 5.1b} in progress ...
Rainer
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (14 preceding siblings ...)
2004-06-09 19:18 ` ro at techfak dot uni-bielefeld dot de
@ 2004-06-09 19:43 ` ro at techfak dot uni-bielefeld dot de
2004-06-09 21:05 ` pinskia at gcc dot gnu dot org
16 siblings, 0 replies; 18+ messages in thread
From: ro at techfak dot uni-bielefeld dot de @ 2004-06-09 19:43 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ro at techfak dot uni-bielefeld dot de 2004-06-09 19:43 -------
Subject: Re: [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
The patch doesn't compile on mainline at all:
/vol/gnu/src/gcc/gcc-dist/gcc/fold-const.c: In function `fold_relational_const':
/vol/gnu/src/gcc/gcc-dist/gcc/fold-const.c:9936: error: `arg0' undeclared (first use in this function)
/vol/gnu/src/gcc/gcc-dist/gcc/fold-const.c:9936: error: (Each undeclared identifier is reported only once
/vol/gnu/src/gcc/gcc-dist/gcc/fold-const.c:9936: error: for each function it appears in.)
make[2]: *** [fold-const.o] Error 1
Rainer
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug target/15822] [3.5 Regression] Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c
2004-06-04 15:59 [Bug target/15822] New: Several alpha testsuite regressions: gcc.c-torture/execute/ieee/fp-cmp-[458].c gcc-bugzilla at gcc dot gnu dot org
` (15 preceding siblings ...)
2004-06-09 19:43 ` ro at techfak dot uni-bielefeld dot de
@ 2004-06-09 21:05 ` pinskia at gcc dot gnu dot org
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-09 21:05 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-06-09 21:05 -------
Fixed by:
* expmed.c (emit_store_flag): Cope with FLOAT_STORE_FLAG_VALUE.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15822
^ permalink raw reply [flat|nested] 18+ messages in thread