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[MLIR][Transforms] Fix dialect conversion inverse mapping #104648

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Merged
merged 3 commits into from
Aug 20, 2024
Merged

[MLIR][Transforms] Fix dialect conversion inverse mapping #104648

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76334c7
update inverse mapping
zyx-billy Aug 16, 2024
5763c6a
add test case
zyx-billy Aug 17, 2024
74ba45c
split test
zyx-billy Aug 19, 2024
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1 change: 1 addition & 0 deletions mlir/lib/Transforms/Utils/DialectConversion.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2527,6 +2527,7 @@ LogicalResult OperationConverter::legalizeConvertedOpResultTypes(
opReplacement->getConverter());
rewriterImpl.mapping.map(result, castValue);
inverseMapping[castValue].push_back(result);
llvm::erase(inverseMapping[newValue], result);
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This is probably a very short list. Open to changing it to a Set though.

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I agree, list is usually very short, so a vector should be fine.

}
}

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11 changes: 10 additions & 1 deletion mlir/test/Transforms/test-legalize-target-materialization-no-uses.mlir
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@@ -1,4 +1,4 @@
// RUN: mlir-opt -test-target-materialization-with-no-uses %s | FileCheck %s
// RUN: mlir-opt -test-target-materialization-with-no-uses -split-input-file %s | FileCheck %s

// The conversion is set up as follows:
// - type_changer ops are illegal;
Expand All @@ -25,3 +25,12 @@ func.func @foo() {
"test.type_consumer"(%2) : (i64) -> ()
return
}

// -----
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Can you add // ----- here and -split-input-file in the // RUN: line?


// CHECK-LABEL: @direct_forward
func.func @direct_forward(%arg0 : i16) -> i16 {
// CHECK-NEXT: return
%0 = "test.type_changer"(%arg0) : (i16) -> i16
return %0 : i16
}
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