7e486d5c2d
This adds the first strict element-wise named op to Linalg.
The semantics here is to not allow auto-cast, broadcast semantics and to
restrict the operations only to identical types. The remaining semantics
must come in the form of surrounding operations on operands, to avoid
ambiguity.
Examples:
```
// Cast int-to-fp
%0 = linalg.copy ins(%in: tensor<32x32xi32>)
outs(%out: tensor<32x32xf32>)
%1 = linalg.add ins(%arg, %0: tensor<32x32xf32>, tensor<32x32xf32>)
outs(%0: tensor<32x32xf32>)
// This can be lowered to
%1 = linalg.generic {...}
ins(%arg, %in: tensor<32x32xf32>, tensor<32x32xi32>)
outs(%0: tensor<32x32xf32>) {
^bb0(%a: f32, %i: i32, %out: f32):
%f = arith.uitofp %i : f32
%0 = arith.addf %a, %f : f32
linalg.yield %0 : f32
}
// Broadcast
%0 = linalg.broadcast ins(%in: tensor<32xf32>)
init(%out: tensor<32x32xf32>)
%1 = linalg.add ins(%arg, %0: tensor<32x32xf32>, tensor<32x32xf32>)
outs(%0: tensor<32x32xf32>)
// This can be lowered to
#bcast_map = affine_map<(d0, d1) -> (d0)>
%1 = linalg.generic {... #bcast_map] }
ins(%arg, %in: tensor<32x32xf32>, tensor<32xf32>)
outs(%0: tensor<32x32xf32>) {
^bb0(%a: f32, %b: f32, %out: f32):
%0 = arith.addf %a, %b : f32
linalg.yield %0 : f32
}
```
Once this gets accepted, other arithmetic and maths operations will be
added accordingly, with the same semantics.
Differential Revision: https://reviews.llvm.org/D154500
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|---|---|---|
| .github/workflows | ||
| bolt | ||
| clang | ||
| clang-tools-extra | ||
| cmake | ||
| compiler-rt | ||
| cross-project-tests | ||
| flang | ||
| libc | ||
| libclc | ||
| libcxx | ||
| libcxxabi | ||
| libunwind | ||
| lld | ||
| lldb | ||
| llvm | ||
| llvm-libgcc | ||
| mlir | ||
| openmp | ||
| polly | ||
| pstl | ||
| runtimes | ||
| third-party | ||
| utils | ||
| .arcconfig | ||
| .arclint | ||
| .clang-format | ||
| .clang-tidy | ||
| .git-blame-ignore-revs | ||
| .gitignore | ||
| .mailmap | ||
| CONTRIBUTING.md | ||
| LICENSE.TXT | ||
| README.md | ||
| SECURITY.md | ||
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