Allow polly ask bb-vectorizer to vectorize the loop body.

llvm-svn: 156254

Refactor: Move the code generation related header files to include/polly/CodeGen.

llvm-svn: 155547

Refactor: Move the declaration of the BlockGenerator/VectorBlockGenerator
to standalone header and source files.

llvm-svn: 155546

Refactor: Pass the argument 'IRBuilder' and 'AfterBlock' of function 'createLoop' by
reference, so that we do not need to type an extra '&' operator when calling the function.

llvm-svn: 155349

CodeGen: Generate scalar code if vector instructions cannot be generated

This fixes two crashes that appeared in case of:
- A load of a non vectorizable type (e.g. float**)
- An instruction that

CodeGen: Generate scalar code if vector instructions cannot be generated

This fixes two crashes that appeared in case of:
- A load of a non vectorizable type (e.g. float**)
- An instruction that is not vectorizable (e.g. call)

llvm-svn: 154586

show more ...

CodeGen: Allow Polly to do 'grouped unrolling', but no vector generation.

Grouped unrolling means that we unroll a loop such that the different instances
of a certain statement are scheduled right a

CodeGen: Allow Polly to do 'grouped unrolling', but no vector generation.

Grouped unrolling means that we unroll a loop such that the different instances
of a certain statement are scheduled right after each other, but we do
not generate any vector code. The idea here is that we can schedule the
bb vectorizer right afterwards and use it heuristics to decide when
vectorization should be performed.

llvm-svn: 154251

show more ...

CodeGen: Remove unused declaration

llvm-svn: 153954

CodeGen: Recreate old ivs with the original type

To avoid overflows we still use a larger type (i64) while calculating the value
of the old ivs. However, we truncate the result to the type of the o

CodeGen: Recreate old ivs with the original type

To avoid overflows we still use a larger type (i64) while calculating the value
of the old ivs. However, we truncate the result to the type of the old iv when
providing it to the new code.

A corresponding test case is added to the polly test suite. Also, a failing test
case is fixed.

This fixes PR12311.

Contributed by: Tsingray Liu <[email protected]>

llvm-svn: 153952

show more ...

CodeGen: Some style improvements

llvm-svn: 153871

CodeGen: Remove unused variable

llvm-svn: 153840

CodeGen: Allow function parameters to be rewritten in getNewValue()

When deriving new values for the statements of a SCoP, we assumed that parameter
values are constant within the SCoP and consquent

CodeGen: Allow function parameters to be rewritten in getNewValue()

When deriving new values for the statements of a SCoP, we assumed that parameter
values are constant within the SCoP and consquently do not need to be rewritten.
For OpenMP code generation this assumption is wrong, as such values are not
available in the OpenMP subfunction and consequently also may need to be
rewritten.

Committed with some changes.

Contributed-By: Johannes Doerfert <[email protected]>
llvm-svn: 153838

show more ...

Move the CodeGeneration.cpp to the CodeGen folder and update the build system.
Patched by Tsingray.

llvm-svn: 153736