derek.holloway
7502bf64a4
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104 lines
4.7 KiB
MLIR
104 lines
4.7 KiB
MLIR
// RUN: mlir-opt %s -split-input-file -pass-pipeline="builtin.module(convert-math-to-funcs{convert-ctlz})" | FileCheck %s
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// RUN: mlir-opt %s -split-input-file -pass-pipeline="builtin.module(convert-math-to-funcs{convert-ctlz=false})" | FileCheck --check-prefix=NOCVT %s
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// Check a golden-path i32 conversion
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// CHECK-LABEL: func.func @main(
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// CHECK-SAME: %[[VAL_0:.*]]: i32
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// CHECK-SAME: ) {
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// CHECK: %[[VAL_1:.*]] = call @__mlir_math_ctlz_i32(%[[VAL_0]]) : (i32) -> i32
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// CHECK: return
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// CHECK: }
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// CHECK-LABEL: func.func private @__mlir_math_ctlz_i32(
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// CHECK-SAME: %[[ARG:.*]]: i32
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// CHECK-SAME: ) -> i32 attributes {llvm.linkage = #llvm.linkage<linkonce_odr>} {
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// CHECK: %[[C_32:.*]] = arith.constant 32 : i32
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// CHECK: %[[C_0:.*]] = arith.constant 0 : i32
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// CHECK: %[[ARGCMP:.*]] = arith.cmpi eq, %[[ARG]], %[[C_0]] : i32
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// CHECK: %[[OUT:.*]] = scf.if %[[ARGCMP]] -> (i32) {
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// CHECK: scf.yield %[[C_32]] : i32
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// CHECK: } else {
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// CHECK: %[[C_1INDEX:.*]] = arith.constant 1 : index
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// CHECK: %[[C_1I32:.*]] = arith.constant 1 : i32
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// CHECK: %[[C_32INDEX:.*]] = arith.constant 32 : index
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// CHECK: %[[N:.*]] = arith.constant 0 : i32
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// CHECK: %[[FOR_RET:.*]]:2 = scf.for %[[I:.*]] = %[[C_1INDEX]] to %[[C_32INDEX]] step %[[C_1INDEX]]
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// CHECK: iter_args(%[[ARG_ITER:.*]] = %[[ARG]], %[[N_ITER:.*]] = %[[N]]) -> (i32, i32) {
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// CHECK: %[[COND:.*]] = arith.cmpi slt, %[[ARG_ITER]], %[[C_0]] : i32
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// CHECK: %[[IF_RET:.*]]:2 = scf.if %[[COND]] -> (i32, i32) {
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// CHECK: scf.yield %[[ARG_ITER]], %[[N_ITER]] : i32, i32
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// CHECK: } else {
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// CHECK: %[[N_NEXT:.*]] = arith.addi %[[N_ITER]], %[[C_1I32]] : i32
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// CHECK: %[[ARG_NEXT:.*]] = arith.shli %[[ARG_ITER]], %[[C_1I32]] : i32
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// CHECK: scf.yield %[[ARG_NEXT]], %[[N_NEXT]] : i32, i32
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// CHECK: }
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// CHECK: scf.yield %[[IF_RET]]#0, %[[IF_RET]]#1 : i32, i32
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// CHECK: }
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// CHECK: scf.yield %[[FOR_RET]]#1 : i32
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// CHECK: }
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// CHECK: return %[[OUT]] : i32
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// CHECK: }
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// NOCVT-NOT: __mlir_math_ctlz_i32
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func.func @main(%arg0: i32) {
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%0 = math.ctlz %arg0 : i32
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func.return
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}
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// -----
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// Check that i8 input is preserved
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// CHECK-LABEL: func.func @main(
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// CHECK-SAME: %[[VAL_0:.*]]: i8
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// CHECK-SAME: ) {
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// CHECK: %[[VAL_1:.*]] = call @__mlir_math_ctlz_i8(%[[VAL_0]]) : (i8) -> i8
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// CHECK: return
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// CHECK: }
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// CHECK-LABEL: func.func private @__mlir_math_ctlz_i8(
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// CHECK-SAME: %[[ARG:.*]]: i8
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// CHECK-SAME: ) -> i8 attributes {llvm.linkage = #llvm.linkage<linkonce_odr>} {
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// CHECK: %[[C_8:.*]] = arith.constant 8 : i8
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// CHECK: %[[C_0:.*]] = arith.constant 0 : i8
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// CHECK: %[[ARGCMP:.*]] = arith.cmpi eq, %[[ARG]], %[[C_0]] : i8
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// CHECK: %[[OUT:.*]] = scf.if %[[ARGCMP]] -> (i8) {
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// CHECK: scf.yield %[[C_8]] : i8
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// CHECK: } else {
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// CHECK: %[[C_1INDEX:.*]] = arith.constant 1 : index
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// CHECK: %[[C_1I32:.*]] = arith.constant 1 : i8
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// CHECK: %[[C_8INDEX:.*]] = arith.constant 8 : index
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// CHECK: %[[N:.*]] = arith.constant 0 : i8
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// CHECK: %[[FOR_RET:.*]]:2 = scf.for %[[I:.*]] = %[[C_1INDEX]] to %[[C_8INDEX]] step %[[C_1INDEX]]
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// CHECK: iter_args(%[[ARG_ITER:.*]] = %[[ARG]], %[[N_ITER:.*]] = %[[N]]) -> (i8, i8) {
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// CHECK: %[[COND:.*]] = arith.cmpi slt, %[[ARG_ITER]], %[[C_0]] : i8
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// CHECK: %[[IF_RET:.*]]:2 = scf.if %[[COND]] -> (i8, i8) {
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// CHECK: scf.yield %[[ARG_ITER]], %[[N_ITER]] : i8, i8
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// CHECK: } else {
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// CHECK: %[[N_NEXT:.*]] = arith.addi %[[N_ITER]], %[[C_1I32]] : i8
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// CHECK: %[[ARG_NEXT:.*]] = arith.shli %[[ARG_ITER]], %[[C_1I32]] : i8
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// CHECK: scf.yield %[[ARG_NEXT]], %[[N_NEXT]] : i8, i8
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// CHECK: }
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// CHECK: scf.yield %[[IF_RET]]#0, %[[IF_RET]]#1 : i8, i8
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// CHECK: }
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// CHECK: scf.yield %[[FOR_RET]]#1 : i8
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// CHECK: }
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// CHECK: return %[[OUT]] : i8
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// CHECK: }
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// NOCVT-NOT: __mlir_math_ctlz_i32
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func.func @main(%arg0: i8) {
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%0 = math.ctlz %arg0 : i8
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func.return
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}
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// -----
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// Check that index is not converted
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// CHECK-LABEL: func.func @ctlz_index
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// CHECK: math.ctlz
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func.func @ctlz_index(%arg0: index) {
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%0 = math.ctlz %arg0 : index
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func.return
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}
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