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* [Bug rtl-optimization/31025] New: [dataflow] Crash in caller-save.c due to x87 math
@ 2007-03-02 13:40 bonzini at gnu dot org
2007-03-15 17:03 ` [Bug rtl-optimization/31025] " bonzini at gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: bonzini at gnu dot org @ 2007-03-02 13:40 UTC (permalink / raw)
To: gcc-bugs
reduced testcase:
real*8 function f(x)
t1 = g(0)
if(x .eq. 0) then
f = 0
else if(x .eq. 1) then
f = t1 *log( t1 )
end if
end
dlarnd.f90: In function 'f':
dlarnd.f90:3: internal compiler error: in insert_save, at caller-save.c:731
--
Summary: [dataflow] Crash in caller-save.c due to x87 math
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bonzini at gnu dot org
GCC target triplet: i686-pc-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31025
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug rtl-optimization/31025] [dataflow] Crash in caller-save.c due to x87 math
2007-03-02 13:40 [Bug rtl-optimization/31025] New: [dataflow] Crash in caller-save.c due to x87 math bonzini at gnu dot org
@ 2007-03-15 17:03 ` bonzini at gnu dot org
2007-03-16 11:18 ` bonzini at gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: bonzini at gnu dot org @ 2007-03-15 17:03 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from bonzini at gnu dot org 2007-03-15 17:03 -------
Created an attachment (id=13211)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13211&action=view)
patch that fixes the bug, untested
REG_N_CALLS_CROSSED is computed using live, not urec. caller_save uses
it to decide what to save (in advance), and urec to decide whether to save
something (while scanning the insns).
reg 58 is not in live but it is in urec. So, caller_save thinks that reg 58
doesn't have to be saved (using live) and yet it tries to save it (using urec).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31025
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug rtl-optimization/31025] [dataflow] Crash in caller-save.c due to x87 math
2007-03-02 13:40 [Bug rtl-optimization/31025] New: [dataflow] Crash in caller-save.c due to x87 math bonzini at gnu dot org
2007-03-15 17:03 ` [Bug rtl-optimization/31025] " bonzini at gnu dot org
@ 2007-03-16 11:18 ` bonzini at gnu dot org
2007-03-30 7:23 ` bonzini at gnu dot org
2007-06-14 12:05 ` zadeck at naturalbridge dot com
3 siblings, 0 replies; 5+ messages in thread
From: bonzini at gnu dot org @ 2007-03-16 11:18 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from bonzini at gnu dot org 2007-03-16 11:18 -------
the patch was not responsible for the regressions, and it regtested ok if i
paper over the bug in stevenb's patch. so i committed it.
--
bonzini at gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31025
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug rtl-optimization/31025] [dataflow] Crash in caller-save.c due to x87 math
2007-03-02 13:40 [Bug rtl-optimization/31025] New: [dataflow] Crash in caller-save.c due to x87 math bonzini at gnu dot org
2007-03-15 17:03 ` [Bug rtl-optimization/31025] " bonzini at gnu dot org
2007-03-16 11:18 ` bonzini at gnu dot org
@ 2007-03-30 7:23 ` bonzini at gnu dot org
2007-06-14 12:05 ` zadeck at naturalbridge dot com
3 siblings, 0 replies; 5+ messages in thread
From: bonzini at gnu dot org @ 2007-03-30 7:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from bonzini at gnu dot org 2007-03-30 08:23 -------
still occurs at -O2 (testing with checking disabled).
--
bonzini at gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31025
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug rtl-optimization/31025] [dataflow] Crash in caller-save.c due to x87 math
2007-03-02 13:40 [Bug rtl-optimization/31025] New: [dataflow] Crash in caller-save.c due to x87 math bonzini at gnu dot org
` (2 preceding siblings ...)
2007-03-30 7:23 ` bonzini at gnu dot org
@ 2007-06-14 12:05 ` zadeck at naturalbridge dot com
3 siblings, 0 replies; 5+ messages in thread
From: zadeck at naturalbridge dot com @ 2007-06-14 12:05 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from zadeck at naturalbridge dot com 2007-06-14 12:05 -------
This bug was fixed a long time ago, i did not realize there was a bugzilla
opened on it.
--
zadeck at naturalbridge dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31025
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2007-06-14 12:05 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2007-03-02 13:40 [Bug rtl-optimization/31025] New: [dataflow] Crash in caller-save.c due to x87 math bonzini at gnu dot org
2007-03-15 17:03 ` [Bug rtl-optimization/31025] " bonzini at gnu dot org
2007-03-16 11:18 ` bonzini at gnu dot org
2007-03-30 7:23 ` bonzini at gnu dot org
2007-06-14 12:05 ` zadeck at naturalbridge dot com
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