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bug: Fix cse for FloatData #3396

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merged 4 commits into from
Nov 4, 2024
Merged

bug: Fix cse for FloatData #3396

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f4768db
bug: Fix cse for float data
n-io Nov 4, 2024
4978df2
implement fix
n-io Nov 4, 2024
e160057
fix
n-io Nov 4, 2024
9456604
let's find out
n-io Nov 4, 2024
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11 changes: 11 additions & 0 deletions tests/filecheck/transforms/cse.mlir
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,17 @@ func.func @simple_constant() -> (i32, i32) {
// CHECK-NEXT: func.return %0, %0 : i32, i32
// CHECK-NEXT: }

func.func @simple_float_constant() -> (f32, f32) {
%0 = arith.constant 1.0 : f32
%1 = arith.constant 1.0 : f32
func.return %0, %1 : f32, f32
}

// CHECK: func.func @simple_float_constant() -> (f32, f32) {
// CHECK-NEXT: %0 = arith.constant 1.000000e+00 : f32
// CHECK-NEXT: func.return %0, %0 : f32, f32
// CHECK-NEXT: }

// CHECK-LABEL: @basic
func.func @basic() -> (index, index) {
%2 = arith.constant 0 : index
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3 changes: 3 additions & 0 deletions xdsl/dialects/builtin.py
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Expand Up @@ -636,6 +636,9 @@ def __eq__(self, other: Any):
math.isnan(self.data) and math.isnan(other.data) or self.data == other.data
)

def __hash__(self):
return hash(self.data)


_FloatAttrType = TypeVar("_FloatAttrType", bound=AnyFloat, covariant=True)

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