[Bug tree-optimization/17340] [4.0 Regression] Internal error compiling with -O3

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2004-12-08 00:54 -------
The rest of this bug goes away when I do this: 
 
Index: global.c 
=================================================================== 
RCS file: /cvs/gcc/gcc/gcc/global.c,v 
retrieving revision 1.118 
diff -u -3 -p -r1.118 global.c 
--- global.c    25 Nov 2004 09:30:03 -0000      1.118 
+++ global.c    8 Dec 2004 00:48:59 -0000 
@@ -344,7 +344,9 @@ global_alloc (FILE *file) 
   size_t i; 
   rtx x; 
 
+#if 0 
   make_accurate_live_analysis (); 
+#endif 
 
   max_allocno = 0; 
 
Since I have no idea what this "make_accurate_live_analysis ()" tries 
to achieve, or how, I'll leave this for someone else to look at.  But my 
personal feeling is that this "feature" should be turned off at least at 
"-O1", because we see "make_accurate_live_analysis ()" show up on profiles 
way too often, and now it also blows up GCC until it runs out of memory. 
 
The motivation for "make_accurate_live_analysis ()" is here: 
http://gcc.gnu.org/ml/gcc-patches/2004-05/msg01038.html. 
 
 
 
 

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           What    |Removed                     |Added
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                 CC|                            |vmakarov at redhat dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17340