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
61