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New regressions because of ICE in flow.c
- From: Neil Booth <neil at daikokuya dot demon dot co dot uk>
- To: gcc at gcc dot gnu dot org
- Cc: jh at suse dot cz
- Date: Sat, 30 Mar 2002 20:40:07 +0000
- Subject: New regressions because of ICE in flow.c
This patch appears to be causing a whole load of regressions for
the C compiler:
Sat Mar 30 14:08:55 CET 2002 Jan Hubicka <jh@suse.cz>
* local-alloc.c (local_alloc): Avoid call of update_equiv_regs
* when not optimizing.
* toplev.c (rest_of_compilation): Cann mark_constant_function
only when optimizing.
* flow.c (calculate_global_regs_live): Ensure that all AUX
* fields are NULL.
* cfgcleanup.c (bb_flags): Add BB_NONTHREADABLE_BLOCK.
(thread_jump): Set BB_NONTHREADABLE_BLOCK, check it.
(try_optimize_cfg): clear all AUX fields.
* i386.c (aligned_operand): Be prepared for SUBREGed registers.
(ix86_decompose_address): Use REG_P instead of GET_CODE (...) ==
REG.
(ix86_address_cost): Be prepared for SUBREGed registers.
(legitimate_address_p): Accept SUBREGed registers.
One example:
output is:
/home/neil/src/gcc/gcc/testsuite/gcc.c-torture/compile/920409-2.c: In
function `x':
/home/neil/src/gcc/gcc/testsuite/gcc.c-torture/compile/920409-2.c:2:
Internal compiler error in calculate_global_regs_live, at flow.c:1081
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
Neil.