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3 Commits

Author SHA1 Message Date
Lukas Sommer 6577cef9b0 [CodeGen] New pass: Replace vector intrinsics with call to vector library
This patch adds a pass to replace calls to vector intrinsics (i.e., LLVM
intrinsics operating on vector operands) with calls to a vector library.

Currently, calls to LLVM intrinsics are only replaced with calls to vector
libraries when scalar calls to intrinsics are vectorized by the Loop- or
SLP-Vectorizer.

With this pass, it is now possible to replace calls to LLVM intrinsics
already operating on vector operands, e.g., if such code was generated
by MLIR. For the replacement, information from the TargetLibraryInfo,
e.g., as specified via -vector-library is used.

This is a re-try of the original commit 2303e93e66 that was reverted
due to pass manager problems. Other minor changes have also been made.

Differential Revision: https://reviews.llvm.org/D95373
2021-02-12 12:53:27 -05:00
Sanjay Patel c981f6f8e1 Revert "[Codegen][ReplaceWithVecLib] add pass to replace vector intrinsics with calls to vector library"
This reverts commit 2303e93e66.
Investigating bot failures.
2021-02-05 15:10:11 -05:00
Lukas Sommer 2303e93e66 [Codegen][ReplaceWithVecLib] add pass to replace vector intrinsics with calls to vector library
This patch adds a pass to replace calls to vector intrinsics
(i.e., LLVM intrinsics operating on vector operands) with
calls to a vector library.

Currently, calls to LLVM intrinsics are only replaced with
calls to vector libraries when scalar calls to intrinsics are
vectorized by the Loop- or SLP-Vectorizer.

With this pass, it is now possible to replace calls to LLVM
intrinsics already operating on vector operands, e.g., if
such code was generated by MLIR. For the replacement,
information from the TargetLibraryInfo, e.g., as specified
via -vector-library is used.

Differential Revision: https://reviews.llvm.org/D95373
2021-02-05 14:25:19 -05:00