104 lines · plain
1// RUN: mlir-opt %s -split-input-file -pass-pipeline="builtin.module(convert-math-to-funcs{convert-ctlz})" | FileCheck %s2// RUN: mlir-opt %s -split-input-file -pass-pipeline="builtin.module(convert-math-to-funcs{convert-ctlz=false})" | FileCheck --check-prefix=NOCVT %s3 4// Check a golden-path i32 conversion5 6// CHECK-LABEL: func.func @main(7// CHECK-SAME: %[[VAL_0:.*]]: i328// CHECK-SAME: ) {9// CHECK: %[[VAL_1:.*]] = call @__mlir_math_ctlz_i32(%[[VAL_0]]) : (i32) -> i3210// CHECK: return11// CHECK: }12 13// CHECK-LABEL: func.func private @__mlir_math_ctlz_i32(14// CHECK-SAME: %[[ARG:.*]]: i3215// CHECK-SAME: ) -> i32 attributes {llvm.linkage = #llvm.linkage<linkonce_odr>} {16// CHECK: %[[C_32:.*]] = arith.constant 32 : i3217// CHECK: %[[C_0:.*]] = arith.constant 0 : i3218// CHECK: %[[ARGCMP:.*]] = arith.cmpi eq, %[[ARG]], %[[C_0]] : i3219// CHECK: %[[OUT:.*]] = scf.if %[[ARGCMP]] -> (i32) {20// CHECK: scf.yield %[[C_32]] : i3221// CHECK: } else {22// CHECK: %[[C_1INDEX:.*]] = arith.constant 1 : index23// CHECK: %[[C_1I32:.*]] = arith.constant 1 : i3224// CHECK: %[[C_32INDEX:.*]] = arith.constant 32 : index25// CHECK: %[[N:.*]] = arith.constant 0 : i3226// CHECK: %[[FOR_RET:.*]]:2 = scf.for %[[I:.*]] = %[[C_1INDEX]] to %[[C_32INDEX]] step %[[C_1INDEX]]27// CHECK: iter_args(%[[ARG_ITER:.*]] = %[[ARG]], %[[N_ITER:.*]] = %[[N]]) -> (i32, i32) {28// CHECK: %[[COND:.*]] = arith.cmpi slt, %[[ARG_ITER]], %[[C_0]] : i3229// CHECK: %[[IF_RET:.*]]:2 = scf.if %[[COND]] -> (i32, i32) {30// CHECK: scf.yield %[[ARG_ITER]], %[[N_ITER]] : i32, i3231// CHECK: } else {32// CHECK: %[[N_NEXT:.*]] = arith.addi %[[N_ITER]], %[[C_1I32]] : i3233// CHECK: %[[ARG_NEXT:.*]] = arith.shli %[[ARG_ITER]], %[[C_1I32]] : i3234// CHECK: scf.yield %[[ARG_NEXT]], %[[N_NEXT]] : i32, i3235// CHECK: }36// CHECK: scf.yield %[[IF_RET]]#0, %[[IF_RET]]#1 : i32, i3237// CHECK: }38// CHECK: scf.yield %[[FOR_RET]]#1 : i3239// CHECK: }40// CHECK: return %[[OUT]] : i3241// CHECK: }42// NOCVT-NOT: __mlir_math_ctlz_i3243func.func @main(%arg0: i32) {44 %0 = math.ctlz %arg0 : i3245 func.return46}47 48// -----49 50// Check that i8 input is preserved51 52// CHECK-LABEL: func.func @main(53// CHECK-SAME: %[[VAL_0:.*]]: i854// CHECK-SAME: ) {55// CHECK: %[[VAL_1:.*]] = call @__mlir_math_ctlz_i8(%[[VAL_0]]) : (i8) -> i856// CHECK: return57// CHECK: }58 59// CHECK-LABEL: func.func private @__mlir_math_ctlz_i8(60// CHECK-SAME: %[[ARG:.*]]: i861// CHECK-SAME: ) -> i8 attributes {llvm.linkage = #llvm.linkage<linkonce_odr>} {62// CHECK: %[[C_8:.*]] = arith.constant 8 : i863// CHECK: %[[C_0:.*]] = arith.constant 0 : i864// CHECK: %[[ARGCMP:.*]] = arith.cmpi eq, %[[ARG]], %[[C_0]] : i865// CHECK: %[[OUT:.*]] = scf.if %[[ARGCMP]] -> (i8) {66// CHECK: scf.yield %[[C_8]] : i867// CHECK: } else {68// CHECK: %[[C_1INDEX:.*]] = arith.constant 1 : index69// CHECK: %[[C_1I32:.*]] = arith.constant 1 : i870// CHECK: %[[C_8INDEX:.*]] = arith.constant 8 : index71// CHECK: %[[N:.*]] = arith.constant 0 : i872// CHECK: %[[FOR_RET:.*]]:2 = scf.for %[[I:.*]] = %[[C_1INDEX]] to %[[C_8INDEX]] step %[[C_1INDEX]]73// CHECK: iter_args(%[[ARG_ITER:.*]] = %[[ARG]], %[[N_ITER:.*]] = %[[N]]) -> (i8, i8) {74// CHECK: %[[COND:.*]] = arith.cmpi slt, %[[ARG_ITER]], %[[C_0]] : i875// CHECK: %[[IF_RET:.*]]:2 = scf.if %[[COND]] -> (i8, i8) {76// CHECK: scf.yield %[[ARG_ITER]], %[[N_ITER]] : i8, i877// CHECK: } else {78// CHECK: %[[N_NEXT:.*]] = arith.addi %[[N_ITER]], %[[C_1I32]] : i879// CHECK: %[[ARG_NEXT:.*]] = arith.shli %[[ARG_ITER]], %[[C_1I32]] : i880// CHECK: scf.yield %[[ARG_NEXT]], %[[N_NEXT]] : i8, i881// CHECK: }82// CHECK: scf.yield %[[IF_RET]]#0, %[[IF_RET]]#1 : i8, i883// CHECK: }84// CHECK: scf.yield %[[FOR_RET]]#1 : i885// CHECK: }86// CHECK: return %[[OUT]] : i887// CHECK: }88// NOCVT-NOT: __mlir_math_ctlz_i3289func.func @main(%arg0: i8) {90 %0 = math.ctlz %arg0 : i891 func.return92}93 94// -----95 96// Check that index is not converted97 98// CHECK-LABEL: func.func @ctlz_index99// CHECK: math.ctlz100func.func @ctlz_index(%arg0: index) {101 %0 = math.ctlz %arg0 : index102 func.return103}104