[Bug target/15569] [3.4 regression] Gcc 3.4.1 failed to build ia64 2.6.6 kernel

[wilson at specifixinc dot com]

------- Additional Comments From wilson at specifixinc dot com  2004-06-01 04:20 -------
Subject: Re:  [3.4 regression] Gcc 3.4.1 failed to build
 ia64 2.6.6 kernel

hjl at lucon dot org wrote:
> [hjl@gnu-4 linux-2.6.6]$ /usr/gcc-3.4/bin/gcc	 -frename-registers -O2  
> -mconstant-gp -c foo.c
> foo.c: In function `ext2_lookup':
> foo.c:66: internal compiler error: in verify_local_live_at_start, at flow.c:546

When -frename-registers got added to -O2 on mainline, there were IA-64 
bootstrap failures.  I had to write a patch for that.  The patch can be 
found here:
     http://gcc.gnu.org/ml/gcc-patches/2004-04/msg01328.html

With this patch applied, the testcase compiles OK.

So it looks like we need to backport this patch onto the gcc-3.4 branch. 
  I am leaving for the GCC Summit tomorrow, so I won't be able to test 
this until next week.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15569