Commit Graph

9 Commits

Author SHA1 Message Date
Florian Hahn f999312872
Recommit "[Matrix] Overload stride arg in matrix.columnwise.load/store."
This reverts the revert 28c04794df.

The failing MLIR test that caused the revert should be fixed  in this
version.

Also includes a PPC test fix previously in 1f87c7c478.
2021-08-12 18:31:57 +01:00
Mehdi Amini 28c04794df Revert "[Matrix] Overload stride arg in matrix.columnwise.load/store."
This reverts commit a1ef81de35.

Broke the MLIR buildbot.
2021-08-12 11:57:19 +00:00
Florian Hahn a1ef81de35
[Matrix] Overload stride arg in matrix.columnwise.load/store.
This patch adjusts the intrinsics definition of
llvm.matrix.column.major.load and llvm.matrix.column.major.store to
allow overloading the type of the stride. The bitwidth of the stride is
used to perform the offset computation.

This fixes a crash when using __builtin_matrix_column_major_load or
__builtin_matrix_column_major_store on 32 bit platforms. The stride argument
of the builtins are defined as `size_t`, which is 32 bits wide on 32 bit
platforms.

Note that we still perform offset computations with 64 bit width on 32
bit platforms for accesses that do not take a user-specified stride.
This can be fixed separately.

Fixes PR51304.

Reviewed By: erichkeane

Differential Revision: https://reviews.llvm.org/D107349
2021-08-12 10:45:25 +01:00
Sjoerd Meijer 2b3c505d0f [Matrix] Intrinsic descriptions
This changes the matrix load/store intrinsic definitions to load/store from/to
a pointer, and not from/to a pointer to a vector, as discussed in D83477.

This also includes the recommit of "[Matrix] Tighten LangRef definitions and
Verifier checks" which adds improved language reference descriptions of the
matrix intrinsics and verifier checks.

Differential Revision: https://reviews.llvm.org/D83785
2020-07-14 19:58:16 +01:00
Sjoerd Meijer 4ff7ed3310 Revert "[Matrix] Tighten LangRef definitions and Verifier checks."
This reverts commit f4d29d6e8c.

Hm, some build bot failures, reverting it while I investigate that.
2020-07-12 19:19:25 +01:00
Sjoerd Meijer f4d29d6e8c [Matrix] Tighten LangRef definitions and Verifier checks.
This tightens the matrix intrinsic definitions in LLVM LangRef and adds
correspondings checks to the IR Verifier.

Differential Revision: https://reviews.llvm.org/D83477
2020-07-12 19:07:22 +01:00
Sjoerd Meijer 0fc17e9edc [matrix] Add some more Verifier negative tests. NFC. 2020-07-08 17:11:53 +01:00
Florian Hahn 6d18c2067e [Matrix] Update load/store intrinsics.
This patch adjust the load/store matrix intrinsics, formerly known as
llvm.matrix.columnwise.load/store, to improve the naming and allow
passing of extra information (volatile).

The patch performs the following changes:
 * Rename columnwise.load/store to column.major.load/store. This is more
   expressive and also more in line with the naming in Clang.
 * Changes the stride arguments from i32 to i64. The stride can be
   larger than i32 and this makes things more uniform with the way
   things are handled in Clang.
 * A new boolean argument is added to indicate whether the load/store
   is volatile. The lowering respects that when emitting vector
   load/store instructions
 * MatrixBuilder is updated to require both Alignment and IsVolatile
   arguments, which are passed through to the generated intrinsic. The
   alignment is set using the `align` attribute.

The changes are grouped together in a single patch, to have a single
commit that breaks the compatibility. We probably should be fine with
updating the intrinsics, as we did not yet officially support them in
the last stable release. If there are any concerns, we can add
auto-upgrade rules for the columnwise intrinsics though.

Reviewers: anemet, Gerolf, hfinkel, andrew.w.kaylor, LuoYuanke, nicolasvasilache, rjmccall, ftynse

Reviewed By: anemet, nicolasvasilache

Differential Revision: https://reviews.llvm.org/D81472
2020-06-18 09:44:52 +01:00
Florian Hahn 862766e01e [Verifier] Verify matrix dimensions operands match vector size.
This patch adds checks to the verifier to ensure the dimension arguments
passed to the matrix intrinsics match the vector types for their
arugments/return values.

Reviewers: anemet, Gerolf, andrew.w.kaylor, LuoYuanke

Reviewed By: anemet

Differential Revision: https://reviews.llvm.org/D77129
2020-04-01 09:21:39 +01:00