[MIR] Add support for the frame-destroy MachineInstr flag

We are printing / parsing the `frame-setup` MachineInstr flag but not
the `frame-destroy` one.

Differential Revision: https://reviews.llvm.org/D41509

llvm-svn: 322071

4 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/MIRParser/MILexer.cpp b/llvm/lib/CodeGen/MIRParser/MILexer.cpp
index 6adb7f1288d..397fdbfe5ee 100644
--- a/llvm/lib/CodeGen/MIRParser/MILexer.cpp
+++ b/llvm/lib/CodeGen/MIRParser/MILexer.cpp
@@ -211,6 +211,7 @@ static MIToken::TokenKind getIdentifierKind(StringRef Identifier) {
       .Case("renamable", MIToken::kw_renamable)
       .Case("tied-def", MIToken::kw_tied_def)
       .Case("frame-setup", MIToken::kw_frame_setup)
+      .Case("frame-destroy", MIToken::kw_frame_destroy)
       .Case("debug-location", MIToken::kw_debug_location)
       .Case("same_value", MIToken::kw_cfi_same_value)
       .Case("offset", MIToken::kw_cfi_offset)
diff --git a/llvm/lib/CodeGen/MIRParser/MILexer.h b/llvm/lib/CodeGen/MIRParser/MILexer.h
index 0204d549d5d..275f92985f7 100644
--- a/llvm/lib/CodeGen/MIRParser/MILexer.h
+++ b/llvm/lib/CodeGen/MIRParser/MILexer.h
@@ -63,6 +63,7 @@ struct MIToken {
     kw_renamable,
     kw_tied_def,
     kw_frame_setup,
+    kw_frame_destroy,
     kw_debug_location,
     kw_cfi_same_value,
     kw_cfi_offset,
diff --git a/llvm/lib/CodeGen/MIRParser/MIParser.cpp b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
index 1a78ae3aad0..4fa84c7bbd9 100644
--- a/llvm/lib/CodeGen/MIRParser/MIParser.cpp
+++ b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
@@ -925,6 +925,9 @@ bool MIParser::parseInstruction(unsigned &OpCode, unsigned &Flags) {
   if (Token.is(MIToken::kw_frame_setup)) {
     Flags |= MachineInstr::FrameSetup;
     lex();
+  } else if (Token.is(MIToken::kw_frame_destroy)) {
+    Flags |= MachineInstr::FrameDestroy;
+    lex();
   }
   if (Token.isNot(MIToken::Identifier))
     return error("expected a machine instruction");
diff --git a/llvm/lib/CodeGen/MIRPrinter.cpp b/llvm/lib/CodeGen/MIRPrinter.cpp
index f91cca6e4e5..cd3ec2ef353 100644
--- a/llvm/lib/CodeGen/MIRPrinter.cpp
+++ b/llvm/lib/CodeGen/MIRPrinter.cpp
@@ -670,6 +670,9 @@ void MIPrinter::print(const MachineInstr &MI) {
     OS << " = ";
   if (MI.getFlag(MachineInstr::FrameSetup))
     OS << "frame-setup ";
+  else if (MI.getFlag(MachineInstr::FrameDestroy))
+    OS << "frame-destroy ";
+
   OS << TII->getName(MI.getOpcode());
   if (I < E)
     OS << ' ';