Toon Moene wrote:
Calculix is a combined C/Fortran program. Did you try to compile the
Fortran parts with --param max-aliased-vops=<something higher than the
default 50> ?
Right, calculix is a combined program. Gprof says the regression is in
e_c3d routine which is 1k lines of Fortran code.
Various max-aliased-vops give no difference for calculix:
default (assume --param max-aliased-vops=50)
1780 sec.
--param max-aliased-vops=80
1789 sec.
--param max-aliased-vops=20
1780 sec.
Setting of max-aliased-vops to value greater than 80 gives an ICE:
allocation.f: In function 'allocation':
allocation.f:19: internal compiler error: in ssa_operand_alloc, at
tree-ssa-oper
ands.c:365
- Grigory
