Commit Graph

11 Commits

Author SHA1 Message Date
Tobias Grosser
c532f12965 Fix crashes due to unaligned parameters
Due to the recent introduction of isl_id, parameters need now always to be
aligned. This was not yet taken care of in the code path of vectorization and
dependence analysis.

llvm-svn: 138555
2011-08-25 08:40:59 +00:00
Tobias Grosser
b406d227d2 ScheduleOptimizer: Fix another memleak
llvm-svn: 138554
2011-08-25 08:40:52 +00:00
Tobias Grosser
a954242c88 ScheduleOptimizer: Fix another memory leak
llvm-svn: 138401
2011-08-23 22:35:23 +00:00
Tobias Grosser
6e0fdcadfe ScheduleOptimizer: Fix some memory errors.
This fixes reference counting if the schedule optimizer is used.

llvm-svn: 138325
2011-08-23 12:31:14 +00:00
Tobias Grosser
2bd3af1e89 Fix two compiler warnings
One of them actually pointed to an invalid condition in an assert.

llvm-svn: 136657
2011-08-01 22:39:00 +00:00
Tobias Grosser
44f19ac3fb ScheduleOpt: Fix some bugs
isl changed a function name, we did not properly initialize some variables
and we freed an isl_ctx object.

llvm-svn: 134448
2011-07-05 22:15:53 +00:00
Tobias Grosser
7c5ba83015 ScheduleOpt: Prevectorize the innermost parallel loop
Only prevectorize loops that are actually parallel and can
be vectorized. Take the innermost loop that is eligible.

llvm-svn: 134187
2011-06-30 20:29:20 +00:00
Tobias Grosser
c6699b7fe8 ScheduleOpt: Add first version of prevectorization
We just strip-mine the innermost dimension by the vector width. This does not
take into account if this dimension is parallel nor if it is constant.

llvm-svn: 134186
2011-06-30 20:29:13 +00:00
Tobias Grosser
de68cc91cf ScheduleOpt: Use band forest to get the schedules
isl introduced a new representation for the schedules it calculates. The new
representation uses a forest of bands and is closer to the structure of the
data as the old interface. Switch to the new interface, as it is nicer to use
and as the old interface will soon be removed from isl.

WARNING: This commit needs a version of isl that is more recent that the one
         included in CLooG. See:
	 http://polly.grosser.es/get_started.html#islTrunk
llvm-svn: 134181
2011-06-30 20:01:02 +00:00
Tobias Grosser
76747f76a0 ScheduleOptimizer: Declare functions static
Functions that are currently only used in this file can be declared static.

Suggested by: ether

llvm-svn: 131960
2011-05-24 12:20:07 +00:00
Tobias Grosser
30aa24cd6b ScheduleOptimizer: Add an isl based schedule optimizer
The isl based routines implement a new interpretation of the Pluto algorithm
new interpretation. This patch requires a recent version of isl to be installed.

llvm-svn: 131354
2011-05-14 19:02:06 +00:00