[PATCH] Improve DAG combine pass on certain IR vector patterns

Fiona Glaser fglaser at apple.com
Fri Jan 16 14:42:03 PST 2015


> On Jan 16, 2015, at 2:33 PM, Chandler Carruth <chandlerc at google.com> wrote:
> 
> 
> On Fri, Jan 16, 2015 at 2:27 PM, Fiona Glaser <fglaser at apple.com <mailto:fglaser at apple.com>> wrote:
> Is this okay? I omitted the prefix stuff because both AVX and AVX2 should generate identical output in this test.
> 
> Just add the few cases to the existing appropriate vector-shuffle file, and run utils/update_x86_llc_test_checks.py to generate the new FileCheck bits. It does commoning between AVX1 and AVX2 when they're the same.

Okay, I hope I did this right.

Fiona

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