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| author | Thomas Lively <tlively@google.com> | 2018-08-30 21:43:51 +0000 |
|---|---|---|
| committer | Thomas Lively <tlively@google.com> | 2018-08-30 21:43:51 +0000 |
| commit | 80725808a3eba456dd1baf282c446f3d250ec100 (patch) | |
| tree | 63d28ace391d52bf02a9b83d0d241bbf4a579656 /llvm/lib | |
| parent | d183d8c772b3029b0a5fbb219d7cfe27615004d9 (diff) | |
| download | bcm5719-llvm-80725808a3eba456dd1baf282c446f3d250ec100.tar.gz bcm5719-llvm-80725808a3eba456dd1baf282c446f3d250ec100.zip | |
[WebAssembly] Vector conversions
Summary:
Lowers away bitconverts between vector types. This CL depends
on D51383.
Reviewers: aheejin, dschuff
Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits
Differential Revision: https://reviews.llvm.org/D51498
llvm-svn: 341128
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/WebAssemblyInstrSIMD.td | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyInstrSIMD.td b/llvm/lib/Target/WebAssembly/WebAssemblyInstrSIMD.td index 459e00a25d6..e4dbda31f34 100644 --- a/llvm/lib/Target/WebAssembly/WebAssemblyInstrSIMD.td +++ b/llvm/lib/Target/WebAssembly/WebAssemblyInstrSIMD.td @@ -271,6 +271,17 @@ def : Pat<(i32 (vector_extract (v16i8 V128:$vec), (i32 LaneIdx16:$idx))), def : Pat<(i32 (vector_extract (v8i16 V128:$vec), (i32 LaneIdx8:$idx))), (EXTRACT_LANE_v8i16_u V128:$vec, (i32 LaneIdx8:$idx))>; +// Bitcasts are nops +// Matching bitcast t1 to t1 causes strange errors, so avoid repeating types +foreach t1 = [v16i8, v8i16, v4i32, v2i64, v4f32, v2f64] in +foreach t2 = !foldl( + []<ValueType>, [v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], + acc, cur, !if(!eq(!cast<string>(t1), !cast<string>(cur)), + acc, !listconcat(acc, [cur]) + ) +) in +def : Pat<(t1 (bitconvert (t2 V128:$v))), (t1 V128:$v)>; + // arbitrary other BUILD_VECTOR patterns def : Pat<(v16i8 (build_vector (i32 I32:$x0), (i32 I32:$x1), (i32 I32:$x2), (i32 I32:$x3), |
