| // RUN: mlir-opt %s -split-input-file -pass-pipeline="builtin.module(convert-math-to-funcs{convert-ctlz})" | FileCheck %s |
| // RUN: mlir-opt %s -split-input-file -pass-pipeline="builtin.module(convert-math-to-funcs{convert-ctlz=false})" | FileCheck --check-prefix=NOCVT %s |
| |
| // Check a golden-path i32 conversion |
| |
| // CHECK-LABEL: func.func @main( |
| // CHECK-SAME: %[[VAL_0:.*]]: i32 |
| // CHECK-SAME: ) { |
| // CHECK: %[[VAL_1:.*]] = call @__mlir_math_ctlz_i32(%[[VAL_0]]) : (i32) -> i32 |
| // CHECK: return |
| // CHECK: } |
| |
| // CHECK-LABEL: func.func private @__mlir_math_ctlz_i32( |
| // CHECK-SAME: %[[ARG:.*]]: i32 |
| // CHECK-SAME: ) -> i32 attributes {llvm.linkage = #llvm.linkage<linkonce_odr>} { |
| // CHECK: %[[C_32:.*]] = arith.constant 32 : i32 |
| // CHECK: %[[C_0:.*]] = arith.constant 0 : i32 |
| // CHECK: %[[ARGCMP:.*]] = arith.cmpi eq, %[[ARG]], %[[C_0]] : i32 |
| // CHECK: %[[OUT:.*]] = scf.if %[[ARGCMP]] -> (i32) { |
| // CHECK: scf.yield %[[C_32]] : i32 |
| // CHECK: } else { |
| // CHECK: %[[C_1INDEX:.*]] = arith.constant 1 : index |
| // CHECK: %[[C_1I32:.*]] = arith.constant 1 : i32 |
| // CHECK: %[[C_32INDEX:.*]] = arith.constant 32 : index |
| // CHECK: %[[N:.*]] = arith.constant 0 : i32 |
| // CHECK: %[[FOR_RET:.*]]:2 = scf.for %[[I:.*]] = %[[C_1INDEX]] to %[[C_32INDEX]] step %[[C_1INDEX]] |
| // CHECK: iter_args(%[[ARG_ITER:.*]] = %[[ARG]], %[[N_ITER:.*]] = %[[N]]) -> (i32, i32) { |
| // CHECK: %[[COND:.*]] = arith.cmpi slt, %[[ARG_ITER]], %[[C_0]] : i32 |
| // CHECK: %[[IF_RET:.*]]:2 = scf.if %[[COND]] -> (i32, i32) { |
| // CHECK: scf.yield %[[ARG_ITER]], %[[N_ITER]] : i32, i32 |
| // CHECK: } else { |
| // CHECK: %[[N_NEXT:.*]] = arith.addi %[[N_ITER]], %[[C_1I32]] : i32 |
| // CHECK: %[[ARG_NEXT:.*]] = arith.shli %[[ARG_ITER]], %[[C_1I32]] : i32 |
| // CHECK: scf.yield %[[ARG_NEXT]], %[[N_NEXT]] : i32, i32 |
| // CHECK: } |
| // CHECK: scf.yield %[[IF_RET]]#0, %[[IF_RET]]#1 : i32, i32 |
| // CHECK: } |
| // CHECK: scf.yield %[[FOR_RET]]#1 : i32 |
| // CHECK: } |
| // CHECK: return %[[OUT]] : i32 |
| // CHECK: } |
| // NOCVT-NOT: __mlir_math_ctlz_i32 |
| func.func @main(%arg0: i32) { |
| %0 = math.ctlz %arg0 : i32 |
| func.return |
| } |
| |
| // ----- |
| |
| // Check that i8 input is preserved |
| |
| // CHECK-LABEL: func.func @main( |
| // CHECK-SAME: %[[VAL_0:.*]]: i8 |
| // CHECK-SAME: ) { |
| // CHECK: %[[VAL_1:.*]] = call @__mlir_math_ctlz_i8(%[[VAL_0]]) : (i8) -> i8 |
| // CHECK: return |
| // CHECK: } |
| |
| // CHECK-LABEL: func.func private @__mlir_math_ctlz_i8( |
| // CHECK-SAME: %[[ARG:.*]]: i8 |
| // CHECK-SAME: ) -> i8 attributes {llvm.linkage = #llvm.linkage<linkonce_odr>} { |
| // CHECK: %[[C_8:.*]] = arith.constant 8 : i8 |
| // CHECK: %[[C_0:.*]] = arith.constant 0 : i8 |
| // CHECK: %[[ARGCMP:.*]] = arith.cmpi eq, %[[ARG]], %[[C_0]] : i8 |
| // CHECK: %[[OUT:.*]] = scf.if %[[ARGCMP]] -> (i8) { |
| // CHECK: scf.yield %[[C_8]] : i8 |
| // CHECK: } else { |
| // CHECK: %[[C_1INDEX:.*]] = arith.constant 1 : index |
| // CHECK: %[[C_1I32:.*]] = arith.constant 1 : i8 |
| // CHECK: %[[C_8INDEX:.*]] = arith.constant 8 : index |
| // CHECK: %[[N:.*]] = arith.constant 0 : i8 |
| // CHECK: %[[FOR_RET:.*]]:2 = scf.for %[[I:.*]] = %[[C_1INDEX]] to %[[C_8INDEX]] step %[[C_1INDEX]] |
| // CHECK: iter_args(%[[ARG_ITER:.*]] = %[[ARG]], %[[N_ITER:.*]] = %[[N]]) -> (i8, i8) { |
| // CHECK: %[[COND:.*]] = arith.cmpi slt, %[[ARG_ITER]], %[[C_0]] : i8 |
| // CHECK: %[[IF_RET:.*]]:2 = scf.if %[[COND]] -> (i8, i8) { |
| // CHECK: scf.yield %[[ARG_ITER]], %[[N_ITER]] : i8, i8 |
| // CHECK: } else { |
| // CHECK: %[[N_NEXT:.*]] = arith.addi %[[N_ITER]], %[[C_1I32]] : i8 |
| // CHECK: %[[ARG_NEXT:.*]] = arith.shli %[[ARG_ITER]], %[[C_1I32]] : i8 |
| // CHECK: scf.yield %[[ARG_NEXT]], %[[N_NEXT]] : i8, i8 |
| // CHECK: } |
| // CHECK: scf.yield %[[IF_RET]]#0, %[[IF_RET]]#1 : i8, i8 |
| // CHECK: } |
| // CHECK: scf.yield %[[FOR_RET]]#1 : i8 |
| // CHECK: } |
| // CHECK: return %[[OUT]] : i8 |
| // CHECK: } |
| // NOCVT-NOT: __mlir_math_ctlz_i32 |
| func.func @main(%arg0: i8) { |
| %0 = math.ctlz %arg0 : i8 |
| func.return |
| } |
| |
| // ----- |
| |
| // Check that index is not converted |
| |
| // CHECK-LABEL: func.func @ctlz_index |
| // CHECK: math.ctlz |
| func.func @ctlz_index(%arg0: index) { |
| %0 = math.ctlz %arg0 : index |
| func.return |
| } |
