Commit Graph

13 Commits

Author SHA1 Message Date
florian
4d86d25c6c * -O4 switch for optimizations which are correct but which might have unexpected effects
like field reordering (possible problems cracker classes) or using ebp as normal register (broken
      stack traces from dump_stack)
    + niln is also valid in a cse domain
    * parameters passed by reference shall have a complexity >1
    * load nodes from outer scopes shall have a complexity >1
    * better cse debugging
    + more node types added to cse
    * consider parameters passed by reference in cse
    * take care of cse in parameters in simple cases

git-svn-id: trunk@22050 -
2012-08-09 18:58:54 +00:00
florian
b330bba0bc + introduce -Oofastmath
* limit the application of the tree transformation introduced in r21986 to safe cases and -Oofastmath

git-svn-id: trunk@22040 -
2012-08-08 19:35:45 +00:00
Jonas Maebe
3798b79fd7 + optimization that (re)orders instance fields of Delphi-style classes in
order to minimise memory losses due to alignment padding. Not yet enabled
    by default at any optimization level, but can be (de)activated separately
    via -Oo(no)orderfields
   o added separate tdef.structalignment method that returns the alignment
     of a type when it appears in a record/object/class (factors out
     AIX-specific double alignment in structs)
   o changed the handling of the offset of a delegate interface
     implemented via a field, by taking the field offset on demand
     rather than at declaration time (because the ordering optimization
     causes the offsets of fields to be unknown until the entire
     declaration has been parsed)

git-svn-id: trunk@21947 -
2012-07-22 16:47:19 +00:00
Jonas Maebe
f4756b8cc1 * enabled node cse with -O2 for ppc32
* enabled tail recursion with -O2 for ppc64

git-svn-id: trunk@16021 -
2010-09-19 23:27:01 +00:00
florian
5acf377e31 * enable node cse for all cpus as level 2 optimization
git-svn-id: trunk@14703 -
2010-01-17 12:28:28 +00:00
Jonas Maebe
62c1781bea + mw_pascal calling convention support for ARM, ppc64 and x86_64: identical
to cdecl, except that all const record parameters are passed by reference
    (required for Mac OS X interfaces)

git-svn-id: trunk@14114 -
2009-11-08 13:42:11 +00:00
florian
2a54d957b2 * fixed two small errors
* supported_optimizerswitches now takes generic flags also into account

git-svn-id: trunk@4865 -
2006-10-11 21:14:47 +00:00
florian
a61abb25cb * reorganized optimizer switch sets
git-svn-id: trunk@4862 -
2006-10-11 18:16:10 +00:00
Jonas Maebe
8a6ebdf274 - disabled loop unrolling for level 3 optimizations since it only causes
crashes (and even if it didn't, on its own it mainly causes code
    bloat)

git-svn-id: trunk@2941 -
2006-03-17 17:42:39 +00:00
peter
2888a21593 * list supported optimization options in -i
* support $OPTIMIZATION and $O+

git-svn-id: trunk@2904 -
2006-03-13 11:17:56 +00:00
peter
b6e35a200e * rewrite of optimizer options
git-svn-id: trunk@2901 -
2006-03-13 09:05:50 +00:00
tom_at_work
e4a61f4af1 * a_op_const_reg_reg optimizations
* added some more 64 bit PPC opcodes
* removed last mwpascal references
* added replacement of division/modulo by constant by multiplications and shifts for 64 bit
* general cleanup

git-svn-id: trunk@1648 -
2005-11-04 22:49:05 +00:00
peter
6bf3269b41 * powerpc64 port from Thomas Schatzl
git-svn-id: trunk@1193 -
2005-09-25 17:19:44 +00:00