1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// RUN: not mlir-opt %s -split-input-file -mlir-print-ir-after-failure -reconcile-unrealized-casts 2>&1 | FileCheck %s
// CHECK-LABEL: @liveSingleCast
// CHECK-SAME: (%[[arg0:.*]]: i64) -> i32
// CHECK: %[[liveCast:.*]] = builtin.unrealized_conversion_cast %[[arg0]] : i64 to i32
// CHECK: return %[[liveCast]] : i32
func.func @liveSingleCast(%arg0: i64) -> i32 {
%0 = builtin.unrealized_conversion_cast %arg0 : i64 to i32
return %0 : i32
}
// -----
// CHECK-LABEL: @liveChain
// CHECK-SAME: (%[[arg0:.*]]: i64) -> i32
// CHECK: %[[cast0:.*]] = builtin.unrealized_conversion_cast %[[arg0]] : i64 to i1
// CHECK: %[[cast1:.*]] = builtin.unrealized_conversion_cast %[[cast0]] : i1 to i32
// CHECK: return %[[cast1]] : i32
func.func @liveChain(%arg0: i64) -> i32 {
%0 = builtin.unrealized_conversion_cast %arg0 : i64 to i1
%1 = builtin.unrealized_conversion_cast %0 : i1 to i32
return %1 : i32
}
// -----
// CHECK-LABEL: @liveBifurcation
// CHECK-SAME: (%[[arg0:.*]]: i64) -> i64
// CHECK: %[[cast0:.*]] = builtin.unrealized_conversion_cast %[[arg0]] : i64 to i32
// CHECK: %[[cast1:.*]] = builtin.unrealized_conversion_cast %[[cast0]] : i32 to i64
// CHECK: %[[cast2:.*]] = builtin.unrealized_conversion_cast %[[cast0]] : i32 to i1
// CHECK: %[[extsi:.*]] = arith.extsi %[[cast2]] : i1 to i64
// CHECK: %[[result:.*]] = arith.addi %[[cast1]], %[[extsi]] : i64
// CHECK: return %[[result]] : i64
func.func @liveBifurcation(%arg0: i64) -> i64 {
%0 = builtin.unrealized_conversion_cast %arg0 : i64 to i32
%1 = builtin.unrealized_conversion_cast %0 : i32 to i64
%2 = builtin.unrealized_conversion_cast %0 : i32 to i1
%3 = arith.extsi %2 : i1 to i64
%4 = arith.addi %1, %3 : i64
return %4 : i64
}
|
