[ms-inline asm] Add support for the nsdialect keyword in the Bitcode

Reader/Writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163185 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Bitcode/LLVMBitCodes.h b/include/llvm/Bitcode/LLVMBitCodes.h
index a8c34cb82995c06a0252ed25016c4205ec81be30..3ac608b9949c1550a0f38d3509444db28137c419 100644 (file)
--- a/include/llvm/Bitcode/LLVMBitCodes.h
+++ b/include/llvm/Bitcode/LLVMBitCodes.h
@@ -161,11 +161,14 @@ namespace bitc {
     CST_CODE_CE_INSERTELT  = 15,  // CE_INSERTELT:  [opval, opval, opval]
     CST_CODE_CE_SHUFFLEVEC = 16,  // CE_SHUFFLEVEC: [opval, opval, opval]
     CST_CODE_CE_CMP        = 17,  // CE_CMP:        [opty, opval, opval, pred]
-    CST_CODE_INLINEASM     = 18,  // INLINEASM:     [sideeffect,asmstr,conststr]
+    CST_CODE_INLINEASM_OLD = 18,  // INLINEASM:     [sideeffect|alignstack,
+                                  //                 asmstr,conststr]
     CST_CODE_CE_SHUFVEC_EX = 19,  // SHUFVEC_EX:    [opty, opval, opval, opval]
     CST_CODE_CE_INBOUNDS_GEP = 20,// INBOUNDS_GEP:  [n x operands]
     CST_CODE_BLOCKADDRESS  = 21,  // CST_CODE_BLOCKADDRESS [fnty, fnval, bb#]
-    CST_CODE_DATA          = 22   // DATA:          [n x elements]
+    CST_CODE_DATA          = 22,  // DATA:          [n x elements]
+    CST_CODE_INLINEASM     = 23   // INLINEASM:     [sideeffect|alignstack|
+                                  //                 nsdialect,asmstr,conststr]
   };
 
   /// CastOpcodes - These are values used in the bitcode files to encode which

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 65fd52e6d2529ffc17a4f51e4d22925fd533bf0b..a3b65a22d1b25159dc72391ae028d35474d8a1d3 100644 (file)
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1245,7 +1245,8 @@ bool BitcodeReader::ParseConstants() {
         V = ConstantExpr::getICmp(Record[3], Op0, Op1);
       break;
     }
-    case bitc::CST_CODE_INLINEASM: {
+    // This maintains backward compatibility, pre-'nsdialect'.
+    case bitc::CST_CODE_INLINEASM_OLD: {
       if (Record.size() < 2) return Error("Invalid INLINEASM record");
       std::string AsmStr, ConstrStr;
       bool HasSideEffects = Record[0] & 1;
@@ -1266,6 +1267,30 @@ bool BitcodeReader::ParseConstants() {
                          AsmStr, ConstrStr, HasSideEffects, IsAlignStack);
       break;
     }
+    // This version adds support for the 'nsdialect' keyword.
+    case bitc::CST_CODE_INLINEASM: {
+      if (Record.size() < 2) return Error("Invalid INLINEASM record");
+      std::string AsmStr, ConstrStr;
+      bool HasSideEffects = Record[0] & 1;
+      bool IsAlignStack = (Record[0] >> 1) & 1;
+      unsigned AsmDialect = Record[0] >> 2;
+      unsigned AsmStrSize = Record[1];
+      if (2+AsmStrSize >= Record.size())
+        return Error("Invalid INLINEASM record");
+      unsigned ConstStrSize = Record[2+AsmStrSize];
+      if (3+AsmStrSize+ConstStrSize > Record.size())
+        return Error("Invalid INLINEASM record");
+
+      for (unsigned i = 0; i != AsmStrSize; ++i)
+        AsmStr += (char)Record[2+i];
+      for (unsigned i = 0; i != ConstStrSize; ++i)
+        ConstrStr += (char)Record[3+AsmStrSize+i];
+      PointerType *PTy = cast<PointerType>(CurTy);
+      V = InlineAsm::get(cast<FunctionType>(PTy->getElementType()),
+                         AsmStr, ConstrStr, HasSideEffects, IsAlignStack,
+                         AsmDialect);
+      break;
+    }
     case bitc::CST_CODE_BLOCKADDRESS:{
       if (Record.size() < 3) return Error("Invalid CE_BLOCKADDRESS record");
       Type *FnTy = getTypeByID(Record[0]);

diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 1d2dfc3437a9304146a8e3dc16984bd9ef19f4ca..94ebe190d407f73f149a1c19f42afcaf95829e75 100644 (file)
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -814,7 +814,8 @@ static void WriteConstants(unsigned FirstVal, unsigned LastVal,
 
     if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
       Record.push_back(unsigned(IA->hasSideEffects()) |
-                       unsigned(IA->isAlignStack()) << 1);
+                       unsigned(IA->isAlignStack()) << 1 |
+                       unsigned(IA->getDialect()&1) << 2);
 
       // Add the asm string.
       const std::string &AsmStr = IA->getAsmString();