Implements parsing and emitting of .cfi_window_save in MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191431 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 1 deletions

diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index 21cbd3416c..e36850beb8 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -355,7 +355,7 @@ private:
     DK_CFI_OFFSET, DK_CFI_REL_OFFSET, DK_CFI_PERSONALITY, DK_CFI_LSDA,
     DK_CFI_REMEMBER_STATE, DK_CFI_RESTORE_STATE, DK_CFI_SAME_VALUE,
     DK_CFI_RESTORE, DK_CFI_ESCAPE, DK_CFI_SIGNAL_FRAME, DK_CFI_UNDEFINED,
-    DK_CFI_REGISTER,
+    DK_CFI_REGISTER, DK_CFI_WINDOW_SAVE,
     DK_MACROS_ON, DK_MACROS_OFF, DK_MACRO, DK_ENDM, DK_ENDMACRO, DK_PURGEM,
     DK_SLEB128, DK_ULEB128
   };
@@ -384,6 +384,7 @@ private:
 
   // .cfi directives
   bool parseDirectiveCFIRegister(SMLoc DirectiveLoc);
+  bool parseDirectiveCFIWindowSave();
   bool parseDirectiveCFISections();
   bool parseDirectiveCFIStartProc();
   bool parseDirectiveCFIEndProc();
@@ -1469,6 +1470,8 @@ bool AsmParser::parseStatement(ParseStatementInfo &Info) {
       return parseDirectiveCFIUndefined(IDLoc);
     case DK_CFI_REGISTER:
       return parseDirectiveCFIRegister(IDLoc);
+    case DK_CFI_WINDOW_SAVE:
+      return parseDirectiveCFIWindowSave();
     case DK_MACROS_ON:
     case DK_MACROS_OFF:
       return parseDirectiveMacrosOnOff(IDVal);
@@ -2827,6 +2830,13 @@ bool AsmParser::parseDirectiveCFIRegister(SMLoc DirectiveLoc) {
   return false;
 }
 
+/// parseDirectiveCFIWindowSave
+/// ::= .cfi_window_save
+bool AsmParser::parseDirectiveCFIWindowSave() {
+  getStreamer().EmitCFIWindowSave();
+  return false;
+}
+
 /// parseDirectiveCFIAdjustCfaOffset
 /// ::= .cfi_adjust_cfa_offset adjustment
 bool AsmParser::parseDirectiveCFIAdjustCfaOffset() {
@@ -3820,6 +3830,7 @@ void AsmParser::initializeDirectiveKindMap() {
   DirectiveKindMap[".cfi_signal_frame"] = DK_CFI_SIGNAL_FRAME;
   DirectiveKindMap[".cfi_undefined"] = DK_CFI_UNDEFINED;
   DirectiveKindMap[".cfi_register"] = DK_CFI_REGISTER;
+  DirectiveKindMap[".cfi_window_save"] = DK_CFI_WINDOW_SAVE;
   DirectiveKindMap[".macros_on"] = DK_MACROS_ON;
   DirectiveKindMap[".macros_off"] = DK_MACROS_OFF;
   DirectiveKindMap[".macro"] = DK_MACRO;