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* [Bug c++/27471] New: [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434
@ 2006-05-07 12:43 mueller at gcc dot gnu dot org
2006-05-07 17:01 ` [Bug c++/27471] " pinskia at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: mueller at gcc dot gnu dot org @ 2006-05-07 12:43 UTC (permalink / raw)
To: gcc-bugs
Hi,
due to the bitfield handling changes, C++ frontend now ICEs on this:
=== Cut===
struct A { unsigned a:8; };
extern void b(unsigned char);
void breakme (A f)
{
b((unsigned char) f.a);
}
=== Cut ===
bitfield-ice-1.cc: In function 'void breakme(A)':
bitfield-ice-1.cc:7: internal compiler error: in build_c_cast, at
cp/typeck.c:5434
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: [4.2 Regression] ICE within build_c_cast
cp/typeck.c:5434
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mueller at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27471
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/27471] [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434
2006-05-07 12:43 [Bug c++/27471] New: [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434 mueller at gcc dot gnu dot org
@ 2006-05-07 17:01 ` pinskia at gcc dot gnu dot org
2006-05-08 19:54 ` mueller at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-05-07 17:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2006-05-07 17:00 -------
Confirmed.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-05-07 17:00:58
date| |
Target Milestone|--- |4.2.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27471
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/27471] [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434
2006-05-07 12:43 [Bug c++/27471] New: [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434 mueller at gcc dot gnu dot org
2006-05-07 17:01 ` [Bug c++/27471] " pinskia at gcc dot gnu dot org
@ 2006-05-08 19:54 ` mueller at gcc dot gnu dot org
2006-05-17 20:39 ` kazu at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mueller at gcc dot gnu dot org @ 2006-05-08 19:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from mueller at gcc dot gnu dot org 2006-05-08 19:54 -------
raising severity because it triggers frequently
--
mueller at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |major
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27471
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/27471] [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434
2006-05-07 12:43 [Bug c++/27471] New: [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434 mueller at gcc dot gnu dot org
2006-05-07 17:01 ` [Bug c++/27471] " pinskia at gcc dot gnu dot org
2006-05-08 19:54 ` mueller at gcc dot gnu dot org
@ 2006-05-17 20:39 ` kazu at gcc dot gnu dot org
2006-05-19 3:01 ` mmitchel at gcc dot gnu dot org
2006-05-19 3:06 ` mmitchel at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: kazu at gcc dot gnu dot org @ 2006-05-17 20:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from kazu at gcc dot gnu dot org 2006-05-17 20:39 -------
Assigning to Mark Mitchell as he agreed.
--
kazu at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kazu at gcc dot gnu dot org
AssignedTo|unassigned at gcc dot gnu |mmitchel at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27471
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/27471] [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434
2006-05-07 12:43 [Bug c++/27471] New: [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434 mueller at gcc dot gnu dot org
` (2 preceding siblings ...)
2006-05-17 20:39 ` kazu at gcc dot gnu dot org
@ 2006-05-19 3:01 ` mmitchel at gcc dot gnu dot org
2006-05-19 3:06 ` mmitchel at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-05-19 3:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from mmitchel at gcc dot gnu dot org 2006-05-19 03:01 -------
Subject: Bug 27471
Author: mmitchel
Date: Fri May 19 03:01:14 2006
New Revision: 113902
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113902
Log:
PR c++/27471
PR c++/27506
* typeck.c (decay_conversion): Convert bitfields to their declared
types here. Improve documentation. Avoid use of cp_convert.
(default_conversion): Make it static. Perform integral promotions
before lvalue-to-rvalue, function-to-pointer, and array-to-pointer
conversions.
* init.c (build_init): Remove.
(expand_default_init): Do not call rvalue.
* call.c (null_ptr_cst_p): Robustify.
(build_conditional_expr): Tidy.
* except.c (build_throw): Do not perform lvalue-to-rvalue
conversion on operand before initializing temporary.
* tree.c (convert.h): Include it.
(convert_bitfield_to_declared_type): Use convert_to_integer, not
cp_convert.
(rvalue): Don't convert bitfields to their declared type here.
* cp-tree.h (build_init): Remove.
(default_conversion): Likewise.
* typeck2.c (build_m_component_ref): Do not perform
lvalue-to-rvalue, function-to-pointer, or array-to-pointer
conversions here. Correct error message.
PR c++/27471
PR c++/27506
* g++.dg/conversion/bitfield5.C: New test.
* g++.dg/conversion/bitfield6.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/conversion/bitfield5.C
trunk/gcc/testsuite/g++.dg/conversion/bitfield6.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/call.c
trunk/gcc/cp/cp-tree.h
trunk/gcc/cp/except.c
trunk/gcc/cp/init.c
trunk/gcc/cp/tree.c
trunk/gcc/cp/typeck.c
trunk/gcc/cp/typeck2.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27471
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/27471] [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434
2006-05-07 12:43 [Bug c++/27471] New: [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434 mueller at gcc dot gnu dot org
` (3 preceding siblings ...)
2006-05-19 3:01 ` mmitchel at gcc dot gnu dot org
@ 2006-05-19 3:06 ` mmitchel at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-05-19 3:06 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from mmitchel at gcc dot gnu dot org 2006-05-19 03:06 -------
Fixed in 4.2.0.
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27471
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2006-05-19 3:06 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2006-05-07 12:43 [Bug c++/27471] New: [4.2 Regression] ICE within build_c_cast cp/typeck.c:5434 mueller at gcc dot gnu dot org
2006-05-07 17:01 ` [Bug c++/27471] " pinskia at gcc dot gnu dot org
2006-05-08 19:54 ` mueller at gcc dot gnu dot org
2006-05-17 20:39 ` kazu at gcc dot gnu dot org
2006-05-19 3:01 ` mmitchel at gcc dot gnu dot org
2006-05-19 3:06 ` mmitchel at gcc dot gnu dot org
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