From 1b5f875a0eee8df114ebae3d65055e6e5ef3d273 Mon Sep 17 00:00:00 2001
From: William Chen <william.chen@futurewei.com>
Date: Thu, 14 Jul 2022 08:45:58 -0700
Subject: [PATCH] Handle %GP in regread for inline asm

---
 .../maple_be/src/cg/aarch64/aarch64_cgfunc.cpp      | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/mapleall/maple_be/src/cg/aarch64/aarch64_cgfunc.cpp b/src/mapleall/maple_be/src/cg/aarch64/aarch64_cgfunc.cpp
index 1a5c595b48..96c78884d7 100644
--- a/src/mapleall/maple_be/src/cg/aarch64/aarch64_cgfunc.cpp
+++ b/src/mapleall/maple_be/src/cg/aarch64/aarch64_cgfunc.cpp
@@ -1262,14 +1262,19 @@ void AArch64CGFunc::SelectAsm(AsmNode &node) {
       case OP_regread: {
         auto &regreadNode = static_cast<RegreadNode&>(*node.Opnd(i));
         PregIdx pregIdx = regreadNode.GetRegIdx();
-        RegOperand &inOpnd = GetOrCreateVirtualRegisterOperand(GetVirtualRegNOFromPseudoRegIdx(pregIdx));
-        listInputOpnd->PushOpnd(static_cast<RegOperand&>(inOpnd));
         MIRPreg *preg = GetFunction().GetPregTab()->PregFromPregIdx(pregIdx);
         PrimType pType = preg->GetPrimType();
+        RegOperand *inOpnd;
+        if (IsSpecialPseudoRegister(pregIdx)) {
+          inOpnd = &GetOrCreateSpecialRegisterOperand(-pregIdx, pType);
+        } else {
+          inOpnd = &GetOrCreateVirtualRegisterOperand(GetVirtualRegNOFromPseudoRegIdx(pregIdx));
+        }
+        listInputOpnd->PushOpnd(static_cast<RegOperand&>(*inOpnd));
         listInRegPrefix->stringList.push_back(
-            static_cast<StringOperand *>(&CreateStringOperand(GetRegPrefixFromPrimType(pType, inOpnd.GetSize(), str))));
+            static_cast<StringOperand *>(&CreateStringOperand(GetRegPrefixFromPrimType(pType, inOpnd->GetSize(), str))));
         if (isOutputTempNode) {
-          rPlusOpnd.emplace_back(std::make_pair(&static_cast<Operand&>(inOpnd), pType));
+          rPlusOpnd.emplace_back(std::make_pair(&static_cast<Operand&>(*inOpnd), pType));
         }
         break;
       }
-- 
Gitee