253afd03f1
The greedy pattern rewrite driver removes ops that are "trivially dead". This could include symbols that are still referenced by other ops. Dead symbols should be removed with the `-symbol-dce` pass instead. This bug was not triggered for `func::FuncOp`, because ops are not considered "trivally dead" if they do not implement the `MemoryEffectOpInterface`, indicating that the op may or may not have side effects. It is, however, triggered for `transform::NamedSequenceOp`, which implements that interface because it is required for all transform dialect ops. Differential Revision: https://reviews.llvm.org/D152994
12 lines
456 B
MLIR
12 lines
456 B
MLIR
// RUN: mlir-opt --pass-pipeline="builtin.module(test-patterns)" %s | FileCheck %s
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// CHECK-LABEL: func @test_reorder_constants_and_match
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func.func @test_reorder_constants_and_match(%arg0 : i32) -> (i32) {
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// CHECK: %[[CST:.+]] = arith.constant 43
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%cst = arith.constant 43 : i32
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// CHECK: return %[[CST]]
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%y = "test.op_commutative2"(%cst, %arg0) : (i32, i32) -> i32
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%x = "test.op_commutative2"(%y, %arg0) : (i32, i32) -> i32
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return %x : i32
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}
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