println.go
2.56 KB
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//===- println.go - IR generation for print and println -------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements IR generation for the print and println built-in
// functions.
//
//===----------------------------------------------------------------------===//
package irgen
import (
"fmt"
"llvm.org/llgo/third_party/gotools/go/types"
)
func (fr *frame) printValues(println_ bool, values ...*govalue) {
for i, value := range values {
llvm_value := value.value
typ := value.Type().Underlying()
if name, isname := typ.(*types.Named); isname {
typ = name.Underlying()
}
if println_ && i > 0 {
fr.runtime.printSpace.call(fr)
}
switch typ := typ.(type) {
case *types.Basic:
switch typ.Kind() {
case types.Uint8, types.Uint16, types.Uint32, types.Uintptr, types.Uint, types.Uint64:
i64 := fr.llvmtypes.ctx.Int64Type()
zext := fr.builder.CreateZExt(llvm_value, i64, "")
fr.runtime.printUint64.call(fr, zext)
case types.Int, types.Int8, types.Int16, types.Int32, types.Int64:
i64 := fr.llvmtypes.ctx.Int64Type()
sext := fr.builder.CreateSExt(llvm_value, i64, "")
fr.runtime.printInt64.call(fr, sext)
case types.Float32:
llvm_value = fr.builder.CreateFPExt(llvm_value, fr.llvmtypes.ctx.DoubleType(), "")
fallthrough
case types.Float64:
fr.runtime.printDouble.call(fr, llvm_value)
case types.Complex64:
llvm_value = fr.convert(value, types.Typ[types.Complex128]).value
fallthrough
case types.Complex128:
fr.runtime.printComplex.call(fr, llvm_value)
case types.String, types.UntypedString:
fr.runtime.printString.call(fr, llvm_value)
case types.Bool:
fr.runtime.printBool.call(fr, llvm_value)
case types.UnsafePointer:
fr.runtime.printPointer.call(fr, llvm_value)
default:
panic(fmt.Sprint("Unhandled Basic Kind: ", typ.Kind))
}
case *types.Interface:
if typ.Empty() {
fr.runtime.printEmptyInterface.call(fr, llvm_value)
} else {
fr.runtime.printInterface.call(fr, llvm_value)
}
case *types.Slice:
fr.runtime.printSlice.call(fr, llvm_value)
case *types.Pointer, *types.Map, *types.Chan, *types.Signature:
fr.runtime.printPointer.call(fr, llvm_value)
default:
panic(fmt.Sprintf("Unhandled type kind: %s (%T)", typ, typ))
}
}
if println_ {
fr.runtime.printNl.call(fr)
}
}