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

57 lines
1.9 KiB
MLIR

// RUN: mlir-opt -allow-unregistered-dialect -split-input-file -remove-shape-constraints -canonicalize <%s | FileCheck %s --dump-input=fail --check-prefixes=CANON,CHECK-BOTH
// RUN: mlir-opt -allow-unregistered-dialect -split-input-file -remove-shape-constraints <%s | FileCheck %s --dump-input=fail --check-prefixes=REPLACE,CHECK-BOTH
// -----
// Check that cstr_broadcastable is removed.
//
// CHECK-BOTH: func @f
func.func @f(%arg0 : !shape.shape, %arg1 : !shape.shape) -> index {
// REPLACE-NEXT: %[[WITNESS:.+]] = shape.const_witness true
// REPLACE-NOT: shape.cstr_eq
// REPLACE: shape.assuming %[[WITNESS]]
// CANON-NEXT: test.source
// CANON-NEXT: return
%0 = shape.cstr_broadcastable %arg0, %arg1 : !shape.shape, !shape.shape
%1 = shape.assuming %0 -> index {
%2 = "test.source"() : () -> (index)
shape.assuming_yield %2 : index
}
return %1 : index
}
// -----
// Check that cstr_eq is removed.
//
// CHECK-BOTH: func @f
func.func @f(%arg0 : !shape.shape, %arg1 : !shape.shape) -> index {
// REPLACE-NEXT: %[[WITNESS:.+]] = shape.const_witness true
// REPLACE-NOT: shape.cstr_eq
// REPLACE: shape.assuming %[[WITNESS]]
// CANON-NEXT: test.source
// CANON-NEXT: return
%0 = shape.cstr_eq %arg0, %arg1 : !shape.shape, !shape.shape
%1 = shape.assuming %0 -> index {
%2 = "test.source"() : () -> (index)
shape.assuming_yield %2 : index
}
return %1 : index
}
// -----
// With a non-const value, we cannot fold away the code, but all constraints
// should be removed still.
//
// CHECK-BOTH: func @f
func.func @f(%arg0 : !shape.shape, %arg1 : !shape.shape) -> index {
// CANON-NEXT: test.source
// CANON-NEXT: return
%0 = shape.cstr_broadcastable %arg0, %arg1 : !shape.shape, !shape.shape
%1 = shape.cstr_eq %arg0, %arg1 : !shape.shape, !shape.shape
%2 = shape.assuming_all %0, %1
%3 = shape.assuming %0 -> index {
%4 = "test.source"() : () -> (index)
shape.assuming_yield %4 : index
}
return %3 : index
}