llvm-project

Commit Graph

Author	SHA1	Message	Date
Sanjay Patel	7a4abc07dd	[LoopVectorize] auto-generate complete checks; NFC We can't see how much overhead/redundancy is being created with the partial checks. To make it smaller and easier to read, I reduced the vectorization factor because that does not add new information - it just duplicates things.	2021-04-01 11:55:41 -04:00
Florian Hahn	23c113802e	[LV] Allow assume calls in predicated blocks. The assume intrinsic is intentionally marked as may reading/writing memory, to avoid passes moving them around. When flattening the CFG for predicated blocks, we have to drop the assume calls, as they are control-flow dependent. There are some cases where we can do better (when control flow is preserved), but that is follow-up work. Fixes PR43620. Reviewers: hsaito, rengolin, dcaballe, Ayal Reviewed By: Ayal Differential Revision: https://reviews.llvm.org/D68814	2020-01-16 10:11:35 +00:00
Florian Hahn	59ac44b3c1	[LV] Make X86/assume.ll X86 independent (NFC). The test does not check anything X86 specific. This is a preparation for the D68814.	2020-01-16 10:01:35 +00:00

Author

SHA1

Message

Date

Sanjay Patel

7a4abc07dd

[LoopVectorize] auto-generate complete checks; NFC

We can't see how much overhead/redundancy is being
created with the partial checks.

To make it smaller and easier to read, I reduced the
vectorization factor because that does not add new
information - it just duplicates things.

2021-04-01 11:55:41 -04:00

Florian Hahn

23c113802e

[LV] Allow assume calls in predicated blocks.

The assume intrinsic is intentionally marked as may reading/writing
memory, to avoid passes moving them around. When flattening the CFG
for predicated blocks, we have to drop the assume calls, as they
are control-flow dependent.

There are some cases where we can do better (when control flow is
preserved), but that is follow-up work.

Fixes PR43620.

Reviewers: hsaito, rengolin, dcaballe, Ayal

Reviewed By: Ayal

Differential Revision: https://reviews.llvm.org/D68814

2020-01-16 10:11:35 +00:00

Florian Hahn

59ac44b3c1

[LV] Make X86/assume.ll X86 independent (NFC).

The test does not check anything X86 specific. This is a preparation for
the D68814.

2020-01-16 10:01:35 +00:00

3 Commits