Use 'opt < %s' instead of just 'opt %s' to ensure that no temporary files are
created.

llvm-svn: 167372

llvm-svn: 167284

At the moment we can handle such arrays only by conservatively assuming that
each access to such an array may touch any element in the array. It would be
great if we could improve Polly/LLVM at some point, such that we can
recover the multi-dimensionality of the accesses.

llvm-svn: 163619

This ensures that the isl sets/maps we operate on have the same parameter
dimensions. Operations on objects with different parameter dimensions are not
allow and trigger assertions.

llvm-svn: 163618

  operand tree.

This patch fix Bug 13491, and the original "FIXME" in IndependentBlocks.cpp.

Patched by Kevin Fan<kevin.fan@gmail.com>.

llvm-svn: 161105

Derive the maximal and minimal values of a parameter from the type it has. Add
this information to the scop context. This information is needed, to derive
optimal types during code generation.

llvm-svn: 157245

This also fixes UMax where we did not correctly keep track of the parameters.
Fixes PR12275.

Reported-By: Sebastian Pop <sebpop@gmail.com>
llvm-svn: 152913

The FinalRead statement represented a virtual read that is executed after the
SCoP. It was used when we verified the correctness of a schedule by checking if
it yields the same FLOW dependences as the original code. This is only works, if
we have a final read that reads all memory at the end of the SCoP.
We now switched to just checking if a schedule does not introduce negative
dependences and also consider WAW WAR dependences. This restricts the schedules
a little bit more, but we do not have any optimizer that would calculate a more
complex schedule. Hence, for now final reads are obsolete.

llvm-svn: 152319

In case we can not analyze an access function, we do not discard the SCoP, but
assume conservatively that all memory accesses that can be derived from our base
pointer may be accessed.

Patch provided by: Marcello Maggioni <hayarms@gmail.com>

llvm-svn: 146972

Parameters can be complex SCEV expressions, but they can also be single scalar
values. If a parameters is such a simple scalar value and the value is named,
use this name to name the isl parameter dimensions.

llvm-svn: 144641

llvm-svn: 144232

llvm-svn: 144224

llvm-svn: 144223

llvm-svn: 144221

llvm-svn: 144220

Instead of using TempScop to find parameters, we detect them directly
on the SCEV. This allows us to remove the TempScop parameter detection
in a subsequent commit.

This fixes a bug reported by Marcello Maggioni <hayarms@gmail.com>

llvm-svn: 144087

This is reducing the impact of SCEVAffFunc

llvm-svn: 143574

llvm-svn: 141253

llvm-svn: 141069

This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e
in the old git repository.

llvm-svn: 130476