From 4913f41a0974056dbd36b0644db8890883a9f0e7 Mon Sep 17 00:00:00 2001
From: Qiao Pengcheng <qiaopengcheng@loongson.cn>
Date: Tue, 10 Feb 2026 19:20:50 +0800
Subject: [PATCH] [LoongArch64] Place async resumption info in read-write
 section which reference dotnet#123433.

---
 src/coreclr/jit/codegenloongarch64.cpp | 10 ++++++++--
 src/coreclr/jit/emitloongarch64.cpp    |  9 +++++----
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/coreclr/jit/codegenloongarch64.cpp b/src/coreclr/jit/codegenloongarch64.cpp
index 02c2812cf1c490..8fe9f426b8773c 100644
--- a/src/coreclr/jit/codegenloongarch64.cpp
+++ b/src/coreclr/jit/codegenloongarch64.cpp
@@ -2279,7 +2279,7 @@ void CodeGen::genJumpTable(GenTree* treeNode)
     // Access to inline data is 'abstracted' by a special type of static member
     // (produced by eeFindJitDataOffs) which the emitter recognizes as being a reference
     // to constant data, not a real static field.
-    GetEmitter()->emitIns_R_C(INS_bl, emitActualTypeSize(TYP_I_IMPL), treeNode->GetRegNum(), REG_NA,
+    GetEmitter()->emitIns_R_C(INS_bl, EA_PTRSIZE, treeNode->GetRegNum(), REG_NA,
                               m_compiler->eeFindJitDataOffs(jmpTabBase), 0);
     genProduceReg(treeNode);
 }
@@ -2292,7 +2292,13 @@ void CodeGen::genJumpTable(GenTree* treeNode)
 //
 void CodeGen::genAsyncResumeInfo(GenTreeVal* treeNode)
 {
-    GetEmitter()->emitIns_R_C(INS_bl, emitActualTypeSize(TYP_I_IMPL), treeNode->GetRegNum(), REG_NA,
+    emitAttr attr = EA_PTRSIZE;
+    if (m_compiler->eeDataWithCodePointersNeedsRelocs())
+    {
+        attr = EA_SET_FLG(EA_PTRSIZE, EA_CNS_RELOC_FLG);
+    }
+
+    GetEmitter()->emitIns_R_C(INS_bl, attr, treeNode->GetRegNum(), REG_NA,
                               genEmitAsyncResumeInfo((unsigned)treeNode->gtVal1), 0);
     genProduceReg(treeNode);
 }
diff --git a/src/coreclr/jit/emitloongarch64.cpp b/src/coreclr/jit/emitloongarch64.cpp
index 83d6425480678e..19705723859fd4 100644
--- a/src/coreclr/jit/emitloongarch64.cpp
+++ b/src/coreclr/jit/emitloongarch64.cpp
@@ -1972,8 +1972,8 @@ void emitter::emitIns_R_R_R_R(
 /*****************************************************************************
  *
  *  Add an instruction with a register + static member operands.
- *  Constant is stored into JIT data which is adjacent to code.
- *  For LOONGARCH64, maybe not the best, here just supports the func-interface.
+ *  Usually constants are stored into JIT data adjacent to code, in which case no
+ *  relocation is needed. PC-relative offset will be encoded directly into instruction.
  *
  */
 void emitter::emitIns_R_C(
@@ -2000,6 +2000,7 @@ void emitter::emitIns_R_C(
     //   load  reg, r21 + addr_bits[11:0]
 
     instrDesc* id = emitNewInstr(attr);
+    id->idSetRelocFlags(attr);
 
     id->idIns(ins);
     assert(reg != REG_R0); // for special. reg Must not be R0.
@@ -2007,7 +2008,8 @@ void emitter::emitIns_R_C(
 
     id->idSmallCns(offs); // usually is 0.
     id->idInsOpt(INS_OPTS_RC);
-    if (m_compiler->opts.compReloc)
+
+    if (m_compiler->opts.compReloc || id->idIsReloc())
     {
         id->idSetIsDspReloc();
         id->idCodeSize(8);
@@ -2030,7 +2032,6 @@ void emitter::emitIns_R_C(
         id->idOpSize(EA_PTRSIZE);
     }
 
-    // TODO-LoongArch64: this maybe deleted.
     id->idSetIsBound(); // We won't patch address since we will know the exact distance
                         // once JIT code and data are allocated together.