derek.holloway
7502bf64a4
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18 lines
715 B
MLIR
18 lines
715 B
MLIR
// RUN: mlir-opt --arith-emulate-wide-int="widest-int-supported=32" --canonicalize %s | FileCheck %s
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// Check that we can fold away the 'hi' part calculation when it is known to be zero.
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//
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// CHECK-LABEL: func @uitofp_i16_ext_f64
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// CHECK-SAME: ([[ARG:%.+]]: i16) -> f64
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// CHECK: [[EXT:%.+]] = arith.extui [[ARG]] : i16 to i32
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// CHECK: [[ORI:%.+]] = arith.ori [[EXT]], {{.*}} : i32
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// CHECK: [[FP:%.+]] = arith.uitofp [[ORI]] : i32 to f64
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// CHECK-NEXT: return [[FP]] : f64
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func.func @uitofp_i16_ext_f64(%a : i16) -> f64 {
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%ext = arith.extui %a : i16 to i64
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%c = arith.constant 1 : i64
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%or = arith.ori %ext, %c : i64
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%r = arith.uitofp %or : i64 to f64
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return %r : f64
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}
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