Commit Graph

7 Commits

Author SHA1 Message Date
Thomas Lively 4a4229f70f [WebAssembly] Codegen for v128.storeX_lane instructions
Replace the experimental clang builtins and LLVM intrinsics for these
instructions with normal codegen patterns. Resolves PR50435.

Differential Revision: https://reviews.llvm.org/D106019
2021-07-14 16:15:25 -07:00
Thomas Lively 970e090010 [WebAssembly] Codegen for v128.loadX_lane instructions
Replace the experimental clang builtin and LLVM intrinsics for these
instructions with normal codegen patterns. Resolves PR50433.

Differential Revision: https://reviews.llvm.org/D105950
2021-07-14 11:31:53 -07:00
Thomas Lively 122b0220fd [WebAssembly] Remove datalayout strings from llc tests
The data layout strings do not have any effect on llc tests and will become
misleadingly out of date as we continue to update the canonical data layout, so
remove them from the tests.

Differential Revision: https://reviews.llvm.org/D105842
2021-07-14 11:17:08 -07:00
Thomas Lively 89333b35a7 [WebAssembly] Set alignment to 1 for SIMD memory intrinsics
The WebAssembly SIMD intrinsics in wasm_simd128.h generally try not to require
any particular alignment for memory operations to be maximally flexible. For
builtin memory access functions and their corresponding LLVM IR intrinsics,
there's no way to set the expected alignment, so the best we can do is set the
alignment to 1 in the backend. This change means that the alignment hints in the
emitted code will no longer be incorrect when users use the intrinsics to access
unaligned data.

Differential Revision: https://reviews.llvm.org/D101850
2021-05-05 11:59:33 -07:00
Thomas Lively 3f738d1f5e Reland "[WebAssembly] v128.load{8,16,32,64}_lane instructions"
This reverts commit 7c8385a352 with a typing fix
to an instruction selection pattern.
2020-10-15 19:32:34 +00:00
Thomas Lively 7c8385a352 Revert "[WebAssembly] v128.load{8,16,32,64}_lane instructions"
This reverts commit 7c6bfd90ab.
2020-10-15 15:49:36 +00:00
Thomas Lively 7c6bfd90ab [WebAssembly] v128.load{8,16,32,64}_lane instructions
Prototype the newly proposed load_lane instructions, as specified in
https://github.com/WebAssembly/simd/pull/350. Since these instructions are not
available to origin trial users on Chrome stable, make them opt-in by only
selecting them from intrinsics rather than normal ISel patterns. Since we only
need rough prototypes to measure performance right now, this commit does not
implement all the load and store patterns that would be necessary to make full
use of the offset immediate. However, the full suite of offset tests is included
to make it easy to track improvements in the future.

Since these are the first instructions to have a memarg immediate as well as an
additional immediate, the disassembler needed some additional hacks to be able
to parse them correctly. Making that code more principled is left as future
work.

Differential Revision: https://reviews.llvm.org/D89366
2020-10-15 15:33:10 +00:00