Re: ra.c todo list.

Re: ra.c todo list.

[Ramana Radhakrishnan]

Hi,
As I had promised,  but while building the new-regalloc-branch and the
C++ compiler during the build there is an ICE . The error message is
given below. . I was not able to find any equivalent error on Google.





Making all in src
make[3]: Entering directory
`/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/src'
/bin/sh ../libtool --tag CXX --mode=compile
/home/ramana/toolscvs/reg-alloc-branch/build-all/gcc/xgcc
-shared-libgcc -B/home/ramana/toolscvs/reg-alloc-branch/build-all/gcc/
-nostdinc++  -L/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/src
-L/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/src/.libs
-B/usr/local/i386-regalloc-branch/i686-pc-linux-gnu/bin/
-B/usr/local/i386-regalloc-branch/i686-pc-linux-gnu/lib/ -isystem
/usr/local/i386-regalloc-branch/i686-pc-linux-gnu/include -isystem
/usr/local/i386-regalloc-branch/i686-pc-linux-gnu/sys-include 
-I/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu
-I/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/include
-I/home/ramana/toolscvs/reg-alloc-branch/gcc/libstdc++-v3/libsupc++
-O2 -pg -g -g -O2 -D_GNU_SOURCE -fno-implicit-templates -Wall -W
-Wwrite-strings -Wcast-qual  -fdiagnostics-show-location=once   
-fimplicit-templates -c ../../../../gcc/libstdc++-v3/src/demangle.cc
/home/ramana/toolscvs/reg-alloc-branch/build-all/gcc/xgcc
-shared-libgcc -B/home/ramana/toolscvs/reg-alloc-branch/build-all/gcc/
-nostdinc++ -L/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/src
-L/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/src/.libs
-B/usr/local/i386-regalloc-branch/i686-pc-linux-gnu/bin/
-B/usr/local/i386-regalloc-branch/i686-pc-linux-gnu/lib/ -isystem
/usr/local/i386-regalloc-branch/i686-pc-linux-gnu/include -isystem
/usr/local/i386-regalloc-branch/i686-pc-linux-gnu/sys-include
-I/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu
-I/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/include
-I/home/ramana/toolscvs/reg-alloc-branch/gcc/libstdc++-v3/libsupc++
-O2 -pg -g -g -O2 -D_GNU_SOURCE -fno-implicit-templates -Wall -W
-Wwrite-strings -Wcast-qual -fdiagnostics-show-location=once
-fimplicit-templates -c ../../../../gcc/libstdc++-v3/src/demangle.cc 
-fPIC -DPIC
/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/include/bits/stl_uninitialized.h:
In function `_ForwardIterator
std::__uninitialized_copy_aux(_InputIterator, _InputIterator,
_ForwardIterator, __false_type) [with _InputIterator =
__gnu_cxx::__normal_iterator<__gnu_cxx::demangler::substitution_st*,
std::vector<__gnu_cxx::demangler::substitution_st,
std::allocator<char> > >, _ForwardIterator =
__gnu_cxx::__normal_iterator<__gnu_cxx::demangler::substitution_st*,
std::vector<__gnu_cxx::demangler::substitution_st,
std::allocator<char> > >]':
/home/ramana/toolscvs/reg-alloc-branch/build-all/i686-pc-linux-gnu/libstdc++-v3/include/bits/stl_uninitialized.h:600:
internal compiler error: Segmentation fault




Any ideas / comments. ?

cheers
Ramana



-- 
Ramana Radhakrishnan

Re: ra.c todo list.

[Michael Matz]

Hi,

On Fri, 10 Sep 2004, Ramana Radhakrishnan wrote:

> As I had promised,  but while building the new-regalloc-branch and the
> C++ compiler during the build there is an ICE . The error message is
> given below. . I was not able to find any equivalent error on Google.
> 
> internal compiler error: Segmentation fault
> 
> Any ideas / comments. ?

No.  Except for seeing where it crashes, and fixing the bug.  Do you want 
to?


Ciao,
Michael.

[Patch]fix new reg-alloc-branch crash in final.c

[Ramana Radhakrishnan]

Hi Michael,

<snip> 
> No.  Except for seeing where it crashes, and fixing the bug.  Do you want
> to?

Tracked to  final.c : profile_function which I have fixed based on the
patches suggested at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12315
. The patch below fixes it for the ra-branch .

There are still a couple of other libstdc++ errors that I am looking at . 

cheers
Ramana

-- 
Ramana Radhakrishnan

ChangeLog
* 20040906: Ramana Radhakrishnan <ramana.r@gmail.com>

final.c : backport of a profiling patch from gcc3.4 head to
reg-alloc-branch to fix a crash while building the regalloc branch
with profiling. Based on patches suggested by Alan Modra and DJ
Delorie for fix to Bug #12315.

Index: final.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/final.c,v
retrieving revision 1.155.2.8
diff -a -u -r1.155.2.8 final.c
--- final.c     10 Oct 2003 14:18:31 -0000      1.155.2.8
+++ final.c     10 Sep 2004 05:21:11 -0000
@@ -1437,7 +1437,7 @@
   function_section (current_function_decl);
  
 #if defined(ASM_OUTPUT_REG_PUSH)
-  if (sval && GET_CODE (svrtx) == REG)
+  if (sval && svrtx != NULL_RTX && GET_CODE (svrtx) == REG)
     ASM_OUTPUT_REG_PUSH (file, REGNO (svrtx));
 #endif
  
@@ -1468,7 +1468,7 @@
 #endif
  
 #if defined(ASM_OUTPUT_REG_PUSH)
-  if (sval && GET_CODE (svrtx) == REG)
+  if (sval && svrtx != NULL_RTX && GET_CODE (svrtx) == REG)
     ASM_OUTPUT_REG_POP (file, REGNO (svrtx));
 #endif
 }