Tobias Grosser 4439d654fd [SCEV] Assume parameters coming from function calls contain IVs ...

The optimistic delinearization implemented in LLVM detects array sizes by
looking for non-linear products between parameters and induction variables.
In OpenCL code, such products often look like:

  A[get_global_id(0) * N + get_global_id(1)]

Hence, the IV is hidden in the get_global_id() call and consequently
delinearization would fail as no induction variable is available that helps
us to identify N as array size parameter.

We now use a very simple heuristic to change this. We assume that each parameter
that comes directly from a function call is a hidden induction variable. As
a result, we can delinearize the access above to:

  A[get_global_id(0)][get_global_id(1]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304073 91177308-0d34-0410-b5e6-96231b3b80d8

2017-05-27 15:17:49 +00:00

..

a.ll

[ValueTracking] Make poison propagation more aggressive

2017-02-22 06:52:32 +00:00

constant_functions_multi_dim.ll

[SCEV] Assume parameters coming from function calls contain IVs

2017-05-27 15:17:49 +00:00

divide_by_one.ll

Recognize n/1 in the SCEV divide function

2015-04-20 16:03:28 +00:00

gcd_multiply_expr.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

himeno_1.ll

Make DataLayout Non-Optional in the Module

2015-03-04 18:43:29 +00:00

himeno_2.ll

Make DataLayout Non-Optional in the Module

2015-03-04 18:43:29 +00:00

iv_times_constant_in_subscript.ll

[ValueTracking] Make poison propagation more aggressive

2017-02-22 06:52:32 +00:00

lit.local.cfg

[Test] Trim unnecessary .c and .cpp from config.suffix in lit.local.cfg

2014-05-12 19:57:31 +00:00

multidim_ivs_and_integer_offsets_3d.ll

[SCEV] Mark AddExprs as nsw or nuw if legal

2015-10-22 19:57:19 +00:00

multidim_ivs_and_integer_offsets_nts_3d.ll

[SCEV] Mark AddExprs as nsw or nuw if legal

2015-10-22 19:57:19 +00:00

multidim_ivs_and_parameteric_offsets_3d.ll

[SCEV] Apply NSW and NUW flags via poison value analysis

2015-07-28 18:22:40 +00:00

multidim_only_ivs_2d_nested.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

multidim_only_ivs_2d.ll

Make DataLayout Non-Optional in the Module

2015-03-04 18:43:29 +00:00

multidim_only_ivs_3d_cast.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

multidim_only_ivs_3d.ll

Make DataLayout Non-Optional in the Module

2015-03-04 18:43:29 +00:00

multidim_two_accesses_different_delinearization.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

parameter_addrec_product.ll

SCEV: Allow simple AddRec * Parameter products in delinearization

2015-10-12 08:02:00 +00:00

terms_with_identity_factor.ll

[SCEV] Consider delinearization pattern with extension with identity factor

2016-10-17 11:56:26 +00:00

type_mismatch.ll

Fix a type mismatch assert in SCEV division

2015-04-22 15:06:40 +00:00

undef.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00