[llvm] [mlir] [mlir][emitc] Arith to EmitC conversion: constants (PR #83798)

[Simon Camphausen via llvm-commits]

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@@ -1,37 +1,6 @@
 // RUN: mlir-translate -mlir-to-cpp %s | FileCheck %s -check-prefix=CPP-DEFAULT
 // RUN: mlir-translate -mlir-to-cpp -declare-variables-at-top %s | FileCheck %s -check-prefix=CPP-DECLTOP
 
-func.func @std_constant() {
-  %c0 = arith.constant 0 : i32
-  %c1 = arith.constant 2 : index
-  %c2 = arith.constant 2.0 : f32
-  %c3 = arith.constant dense<0> : tensor<i32>
-  %c4 = arith.constant dense<[0, 1]> : tensor<2xindex>
-  %c5 = arith.constant dense<[[0.0, 1.0], [2.0, 3.0]]> : tensor<2x2xf32>
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simon-camp wrote:

Can you convert these into `emitc.constants`and add them [here](https://github.com/llvm/llvm-project/blob/9e0f5909d0af3911b19bb1f97fb400c3ce431f63/mlir/test/Target/Cpp/const.mlir#L11)

https://github.com/llvm/llvm-project/pull/83798