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TheRock/compiler/amd-llvm/mlir/test/Dialect/Builtin/canonicalize.mlir
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

26 lines
1.2 KiB
MLIR

// RUN: mlir-opt %s -canonicalize="test-convergence" | FileCheck %s
//===----------------------------------------------------------------------===//
// UnrealizedConversionCastOp
//===----------------------------------------------------------------------===//
// Test folding conversion casts feeding into other casts.
// CHECK-LABEL: func @multiple_conversion_casts
// CHECK-SAME: %[[ARG0:.*]]: i32, %[[ARG1:.*]]:
func.func @multiple_conversion_casts(%arg0: i32, %arg1: i32) -> (i32, i32) {
// CHECK-NOT: unrealized_conversion_cast
// CHECK: return %[[ARG0]], %[[ARG1]]
%inputs:2 = builtin.unrealized_conversion_cast %arg0, %arg1 : i32, i32 to i64, i64
%outputs:2 = builtin.unrealized_conversion_cast %inputs#0, %inputs#1 : i64, i64 to i32, i32
return %outputs#0, %outputs#1 : i32, i32
}
// CHECK-LABEL: func @multiple_conversion_casts
func.func @multiple_conversion_casts_failure(%arg0: i32, %arg1: i32, %arg2: i64) -> (i32, i32) {
// CHECK: unrealized_conversion_cast
// CHECK: unrealized_conversion_cast
%inputs:2 = builtin.unrealized_conversion_cast %arg0, %arg1 : i32, i32 to i64, i64
%outputs:2 = builtin.unrealized_conversion_cast %arg2, %inputs#1 : i64, i64 to i32, i32
return %outputs#0, %outputs#1 : i32, i32
}