llvm/lib/ExecutionEngine/JITLink/loongarch.cpp

   1 //===--- loongarch.cpp - Generic JITLink loongarch edge kinds, utilities --===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // Generic utilities for graphs representing loongarch objects.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "llvm/ExecutionEngine/JITLink/loongarch.h"
  14
  15 #define DEBUG_TYPE "jitlink"
  16
  17 namespace llvm {
  18 namespace jitlink {
  19 namespace loongarch {
  20
  21 const char NullPointerContent[8] = {0x00, 0x00, 0x00, 0x00,
  22                                     0x00, 0x00, 0x00, 0x00};
  23
  24 const uint8_t LA64StubContent[StubEntrySize] = {
  25     0x14, 0x00, 0x00, 0x1a, // pcalau12i $t8, %page20(imm)
  26     0x94, 0x02, 0xc0, 0x28, // ld.d $t8, $t8, %pageoff12(imm)
  27     0x80, 0x02, 0x00, 0x4c  // jr $t8
  28 };
  29
  30 const uint8_t LA32StubContent[StubEntrySize] = {
  31     0x14, 0x00, 0x00, 0x1a, // pcalau12i $t8, %page20(imm)
  32     0x94, 0x02, 0x80, 0x28, // ld.w $t8, $t8, %pageoff12(imm)
  33     0x80, 0x02, 0x00, 0x4c  // jr $t8
  34 };
  35
  36 const char *getEdgeKindName(Edge::Kind K) {
  37 #define KIND_NAME_CASE(K)                                                      \
  38   case K:                                                                      \
  39     return #K;
  40
  41   switch (K) {
  42     KIND_NAME_CASE(Pointer64)
  43     KIND_NAME_CASE(Pointer32)
  44     KIND_NAME_CASE(Delta32)
  45     KIND_NAME_CASE(NegDelta32)
  46     KIND_NAME_CASE(Delta64)
  47     KIND_NAME_CASE(Branch26PCRel)
  48     KIND_NAME_CASE(Page20)
  49     KIND_NAME_CASE(PageOffset12)
  50     KIND_NAME_CASE(RequestGOTAndTransformToPage20)
  51     KIND_NAME_CASE(RequestGOTAndTransformToPageOffset12)
  52   default:
  53     return getGenericEdgeKindName(K);
  54   }
  55 #undef KIND_NAME_CASE
  56 }
  57
  58 } // namespace loongarch
  59 } // namespace jitlink
  60 } // namespace llvm