[MIR] Add support for addrspace in MIR

Add support for printing / parsing the addrspace of a MachineMemOperand.

Fixes PR35970.

Differential Revision: https://reviews.llvm.org/D42502

llvm-svn: 323521

3 files changed, 18 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/MIRParser/MILexer.cpp b/llvm/lib/CodeGen/MIRParser/MILexer.cpp
index a5d66b5c979..9f41660684a 100644
--- a/llvm/lib/CodeGen/MIRParser/MILexer.cpp
+++ b/llvm/lib/CodeGen/MIRParser/MILexer.cpp
@@ -242,6 +242,7 @@ static MIToken::TokenKind getIdentifierKind(StringRef Identifier) {
       .Case("dereferenceable", MIToken::kw_dereferenceable)
       .Case("invariant", MIToken::kw_invariant)
       .Case("align", MIToken::kw_align)
+      .Case("addrspace", MIToken::kw_addrspace)
       .Case("stack", MIToken::kw_stack)
       .Case("got", MIToken::kw_got)
       .Case("jump-table", MIToken::kw_jump_table)
diff --git a/llvm/lib/CodeGen/MIRParser/MILexer.h b/llvm/lib/CodeGen/MIRParser/MILexer.h
index 275f92985f7..c6a9b79baa9 100644
--- a/llvm/lib/CodeGen/MIRParser/MILexer.h
+++ b/llvm/lib/CodeGen/MIRParser/MILexer.h
@@ -93,6 +93,7 @@ struct MIToken {
     kw_non_temporal,
     kw_invariant,
     kw_align,
+    kw_addrspace,
     kw_stack,
     kw_got,
     kw_jump_table,
diff --git a/llvm/lib/CodeGen/MIRParser/MIParser.cpp b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
index 4fa84c7bbd9..f3d46afb0b0 100644
--- a/llvm/lib/CodeGen/MIRParser/MIParser.cpp
+++ b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
@@ -228,6 +228,7 @@ public:
                                          Optional<unsigned> &TiedDefIdx);
   bool parseOffset(int64_t &Offset);
   bool parseAlignment(unsigned &Alignment);
+  bool parseAddrspace(unsigned &Addrspace);
   bool parseOperandsOffset(MachineOperand &Op);
   bool parseIRValue(const Value *&V);
   bool parseMemoryOperandFlag(MachineMemOperand::Flags &Flags);
@@ -2094,6 +2095,17 @@ bool MIParser::parseAlignment(unsigned &Alignment) {
   return false;
 }
 
+bool MIParser::parseAddrspace(unsigned &Addrspace) {
+  assert(Token.is(MIToken::kw_addrspace));
+  lex();
+  if (Token.isNot(MIToken::IntegerLiteral) || Token.integerValue().isSigned())
+    return error("expected an integer literal after 'addrspace'");
+  if (getUnsigned(Addrspace))
+    return true;
+  lex();
+  return false;
+}
+
 bool MIParser::parseOperandsOffset(MachineOperand &Op) {
   int64_t Offset = 0;
   if (parseOffset(Offset))
@@ -2405,6 +2417,10 @@ bool MIParser::parseMachineMemoryOperand(MachineMemOperand *&Dest) {
       if (parseAlignment(BaseAlignment))
         return true;
       break;
+    case MIToken::kw_addrspace:
+      if (parseAddrspace(Ptr.AddrSpace))
+        return true;
+      break;
     case MIToken::md_tbaa:
       lex();
       if (parseMDNode(AAInfo.TBAA))