[Bug c/28379] New: internal compiler error with demo code

[stephan at s11n dot net]

Hi!

With gcc 4.1.0 and 4.1.1 on GNU/Linux platforms i can reliably reproduce an
internal compiler error. Unfortunately, there does not seem to be a way to
attach a file to this bug report, so i will instead post a URL:

http://s11n.net/tmp/jscpucfg.c

The command line is:

gcc -o jscpucfg.o -c -Wall -Wno-format -DGCC_OPT_BUG -g -DXP_UNIX -DSVR4 -DSYSV
-D_BSD_SOURCE -DPOSIX_SOURCE -DHAVE_LOCALTIME_R -DX86_LINUX  jscpucfg.c
jscpucfg.c:376: internal compiler error: in dwarf2out_finish, at
dwarf2out.c:14117

gcc --version
gcc (GCC) 4.1.1

Also reproduced with 4.1.0.

The software being built is the Mozilla SpiderMonkey Javascript engine, in case
it makes any difference.


-- 
   Summary: internal compiler error with demo code
   Product: gcc
   Version: 4.1.1
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: stephan at s11n dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28379

[Bug c/28379] internal compiler error with demo code

[stephan at s11n dot net]

--- Comment #1 from stephan at s11n dot net  2006-07-14 11:01 ---
Created an attachment (id=11888)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11888&action=view)
Demonstrates an internal compiler error

Compile with:

gcc -o jscpucfg.o -c -Wall -Wno-format -DGCC_OPT_BUG -g -DXP_UNIX -DSVR4 -DSYSV
-D_BSD_SOURCE -DPOSIX_SOURCE -DHAVE_LOCALTIME_R -DX86_LINUX  jscpucfg.c

Only known to fail on GNU/Linux systems - some options need to be changed (to
unknown values) on other platforms.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28379

[Bug debug/26881] [4.1/4.2 Regression] internal compiler error in dwarf2out_finish

[stephan at s11n dot net]

--- Comment #15 from stephan at s11n dot net  2006-08-07 09:47 ---
(In reply to comment #12)
> This bug prevents the current release of the Globus toolkit
> (www.globus.org) from compiling.

A semi-workaround for getting SpiderMonkey to build is to export the
BUILD_OPT=1 environment variable. This tells the SpiderMonkey makefile to turn
off debugging, which causes the error to disappear. The down-side is that the
library is then built to another directory, so you may have to change your
Makefiles to accommodate finding the .so file in another place. For example, on
my machine it is output to js/Linux_All_OPT.OBJ/.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26881

[Bug c++/33588] New: gcc warns of (char*) conversion on client-side varargs funcs

[stephan at s11n dot net]

(i submitted this via gccbugs, but the script gave me no feedback about whether
the report was actually sent or not, so i'm re-posting here.)

gcc 4.2.1 appears to incorrectly(?) give a warning when a client-written
varargs func is passed a string literal (e.g. __FILE__) as one of the
arguments. e.g.

my_func( "format string: %s", __FILE__ )

warning: deprecated conversion from string constant to ‘char'

Curiously, the warning is not emitted when printf() is used.

This apparently bogus warning causes -Werror builds (that is, all of my builds)
to fail.

i will attach a demo file after saving this bug (assuming bugzilla lets me,
otherwise i'll paste it in as a comment).


-- 
   Summary: gcc warns of (char*) conversion on client-side varargs
funcs
   Product: gcc
   Version: 4.2.1
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: stephan at s11n dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33588

[Bug c++/33588] gcc warns of (char*) conversion on client-side varargs funcs

[stephan at s11n dot net]

--- Comment #1 from stephan at s11n dot net  2007-09-29 16:31 ---
Created an attachment (id=14266)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14266&action=view)
Demonstrates the problem.

Demonstrates this seeming bug, including the discrepancy between client-defined
varargs funcs and built-ins. Compile with: gcc gcc-421-charptr.cpp -lstdc++


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33588