[PATCH] D16729: [X86][SSE] Add general 32-bit LOAD + VZEXT_MOVL support to EltsFromConsecutiveLoads
Simon Pilgrim via llvm-commits
llvm-commits at lists.llvm.org
Fri Jan 29 10:33:27 PST 2016
RKSimon created this revision.
RKSimon added reviewers: qcolombet, spatel, mkuper.
RKSimon added a subscriber: llvm-commits.
RKSimon set the repository for this revision to rL LLVM.
This patch adds support for consecutive (load/undef elements) 32-bit loads, followed by trailing undef/zero elements to be combined to a single MOVSS load.
Follow up to D16217
Note: I've been looking into correcting the domain for both the MOVSS/MOVD and the MOVSD/MOVQ load/stores but am concerned about the number of test changes - is this something that people think is worthwhile? I'd probably have to change many of the tests to ensure that they keep to the intended domain,
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