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

Chandler Carruth chandlerc at google.com
Fri Jan 16 14:33:06 PST 2015

On Fri, Jan 16, 2015 at 2:27 PM, Fiona Glaser <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.
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