[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #1 from rguenth at gcc dot gnu dot org 2008-10-01 10:54 --- Preprocessed source? -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |WAITING Keywords||ice-on-valid-code Summary|Building of CPU2000's bzip2 |[4.4 Regression] Building of |with peak flags with - |CPU2000's bzip2 with peak |mcpu=power4 fails with an |flags with -mcpu=power4 |ICE.|fails with an ICE. Target Milestone|--- |4.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #2 from luisgpm at linux dot vnet dot ibm dot com 2008-10-01 13:10 --- Created an attachment (id=16439) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16439action=view) Preprocessed source for reduced bzip2.c Preprocessed source. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #3 from luisgpm at linux dot vnet dot ibm dot com 2008-10-01 13:10 --- Created an attachment (id=16440) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16440action=view) Reduced source for bzip2.c Source reduced with delta -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #4 from luisgpm at linux dot vnet dot ibm dot com 2008-10-01 13:13 --- Created an attachment (id=16441) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16441action=view) Reduced source for bzip2.c Indented reduced source. -- luisgpm at linux dot vnet dot ibm dot com changed: What|Removed |Added Attachment #16440|0 |1 is obsolete|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #5 from luisgpm at linux dot vnet dot ibm dot com 2008-10-01 13:19 --- I'm still trying to minimize even further the source. Will attach when i have something better. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #6 from rguenth at gcc dot gnu dot org 2008-10-01 14:12 ---
Doesn't ICE for me with a cross from x86_64,
./cc1 -quiet bzip2-reduced.i -O3 -ffast-math -funroll-loops -ftree-loop-linear
-fpeel-loops -mcpu=power4 {,-m32,-m64}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #7 from luisgpm at linux dot vnet dot ibm dot com 2008-10-01 17:44 --- I still can ICE it with the same flags in a native system. Any other info you'd like to have available? I have a more reduced source, will post it soon. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #8 from pinskia at gcc dot gnu dot org 2008-10-01 20:13 --- I can reproduce this even with a stage1 compiler. -- pinskia at gcc dot gnu dot org changed: What|Removed |Added Status|WAITING |UNCONFIRMED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #9 from pinskia at gcc dot gnu dot org 2008-10-01 20:13 --- #0 0x10195c2c in single_exit (loop=0xf7b31930) at /home/apinski/src/other/gcc/gcc/cfgloop.c:1618 #1 0x106a1208 in number_of_latch_executions (loop=0xf7b31930) at /home/apinski/src/other/gcc/gcc/tree-scalar-evolution.c:2375 #2 0x1072bc2c in canonicalize_loop_induction_variables (loop=0xf7b31930, create_iv=1 '\001', ul=UL_SINGLE_ITER, try_eval=1 '\001') at /home/apinski/src/other/gcc/gcc/tree-ssa-loop-ivcanon.c:277 #3 0x1072be84 in canonicalize_induction_variables () at /home/apinski/src/other/gcc/gcc/tree-ssa-loop-ivcanon.c:330 #4 0x1075f740 in tree_ssa_loop_ivcanon () at /home/apinski/src/other/gcc/gcc/tree-ssa-loop.c:378 #5 0x10475700 in execute_one_pass (pass=0x10ebb2c8) at /home/apinski/src/other/gcc/gcc/passes.c:1279 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #10 from pinskia at gcc dot gnu dot org 2008-10-01 20:14 --- This was with: GNU C (GCC) version 4.4.0 20080929 (experimental) [trunk revision 140763] (powerpc64-unknown-linux-gnu) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
[Bug regression/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.
--- Comment #11 from pinskia at gcc dot gnu dot org 2008-10-01 20:23 --- If I change the GC Parameters, I get a different backtrace: #0 0x105c9abc in gsi_stmt (i=Cannot access memory at address 0x4 ) at /home/apinski/src/other/gcc/gcc/gimple.h:4392 #1 0x105dd4fc in verify_stmts () at /home/apinski/src/other/gcc/gcc/tree-cfg.c:4179 #2 0x107dec80 in verify_ssa (check_modified_stmt=1 '\001') at /home/apinski/src/other/gcc/gcc/tree-ssa.c:750 So this looks GC related. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
