Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
Richard.
2016-07-27 Richard Biener
PR tree-optimization/72517
* tree-vect-data-refs.c (vect_analyze_data_ref_dependences):
Revert change to not compute read-read dependences.
Index: gcc/tree-vect-data-ref
The following patch fixes a bug in selecting a "better" mode to
do a vector extract from. The existing code was evidently written
without knowing what GET_MODE_WIDER_MODE does for vector modes
in the face of multiple supported vector sizes. This results in
odd code-generation choices for HImode
