[Bug c/42790] New: ICE on building libgcc.c __muldi3.

[Bug c/42790] New: ICE on building libgcc.c __muldi3.

[monaka at monami-software dot com]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 981 bytes --]

$ cc1 -msx _muldi3.i -g
 __muldi3
Analyzing compilation unit
Performing interprocedural optimizations
 <visibility> <*free_lang_data> <early_local_cleanups> <whole-program>
<inline>Assembling functions:
 __muldi3
../../../../../../../libgcc/../gcc/libgcc2.c: In function e__muldi3f:
../../../../../../../libgcc/../gcc/libgcc2.c:562:1: internal compiler error: in
dwarf2out_begin_epilogue, at dwarf2out.c:2845
Please submit a full bug report,
with preprocessed source if appropriate.


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           Summary: ICE on building libgcc.c __muldi3.
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: monaka at monami-software dot com
 GCC build triplet: i386-apple-darwin10.2.0
  GCC host triplet: i386-apple-darwin10.2.0
GCC target triplet: h8300-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42790

[Bug c/42790] ICE on building libgcc.c __muldi3.

[monaka at monami-software dot com]

------- Comment #1 from monaka at monami-software dot com  2010-01-18 22:07 -------
Created an attachment (id=19650)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19650&action=view)
Preprocessed source.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42790

[Bug c/42790] ICE on building libgcc.c __muldi3.

[monaka at monami-software dot com]

------- Comment #2 from monaka at monami-software dot com  2010-01-29 03:17 -------
Created an attachment (id=19745)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19745&action=view)
simplified code that causes same error.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42790

[Bug c/42790] ICE on building libgcc.c __muldi3.

[monaka at monami-software dot com]

------- Comment #3 from monaka at monami-software dot com  2010-01-29 03:21 -------
We can reproduce same ICE with Attachment #19745.

I got ICE in case like this.
$ cc1 -msx -g -O1 regex.i

but I didn't get any errors in case like this.
$ cc1 -msx -g -O0 regex.i -fipa-pure-const

So it's possible this issue is caused by static-var optimization.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42790

[Bug target/42790] ICE on building libgcc.c __muldi3.

[monaka at monami-software dot com]

------- Comment #4 from monaka at monami-software dot com  2010-05-04 03:08 -------
I tried with SVN trunk. This issue has already fixed.
I leave as UNCONFIRMED as I'm not sure I have the permission to change status.

The environment I checked is like this:

$ cc1 -version
GNU C (GCC) version 4.6.0 20100311 (experimental) (h8300-pizzafactory-elf)
        compiled by GNU C version 4.2.1 (Apple Inc. build 5659), GMP version
4.2.4, MPFR version 2.4.1, MPC version 0.8


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42790