[all-commits] [llvm/llvm-project] 6937db: [mlir][memref] Fix `alloca` lowering with 0 dimens...
Matthias Springer via All-commits
all-commits at lists.llvm.org
Fri Oct 4 08:32:54 PDT 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 6937dbbe51391471f3cf50fe2b8fa2cd14080a3b
https://github.com/llvm/llvm-project/commit/6937dbbe51391471f3cf50fe2b8fa2cd14080a3b
Author: Matthias Springer <me at m-sp.org>
Date: 2024-10-04 (Fri, 04 Oct 2024)
Changed paths:
M mlir/lib/Conversion/LLVMCommon/Pattern.cpp
M mlir/test/Conversion/MemRefToLLVM/convert-static-memref-ops.mlir
Log Message:
-----------
[mlir][memref] Fix `alloca` lowering with 0 dimensions (#111119)
The `memref.alloca` lowering computed the allocation size incorrectly
when there were 0 dimensions.
Previously:
```
memref.alloca() : memref<10x0x2xf32>
--> llvm.alloca 20xf32
```
Now:
```
memref.alloca() : memref<10x0x2xf32>
--> llvm.alloca 0xf32
```
>From the `llvm.alloca` documentation:
```
Allocating zero bytes is legal, but the returned pointer may not be unique.
```
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