Implement .cfi_escape. Patch by Brian Anderson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147352 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index aac020d..2ccea78 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -301,6 +301,8 @@
&GenericAsmParser::ParseDirectiveCFIRestoreState>(".cfi_restore_state");
AddDirectiveHandler<
&GenericAsmParser::ParseDirectiveCFISameValue>(".cfi_same_value");
+ AddDirectiveHandler<
+ &GenericAsmParser::ParseDirectiveCFIEscape>(".cfi_escape");
// Macro directives.
AddDirectiveHandler<&GenericAsmParser::ParseDirectiveMacrosOnOff>(
@@ -334,6 +336,7 @@
bool ParseDirectiveCFIRememberState(StringRef, SMLoc DirectiveLoc);
bool ParseDirectiveCFIRestoreState(StringRef, SMLoc DirectiveLoc);
bool ParseDirectiveCFISameValue(StringRef, SMLoc DirectiveLoc);
+ bool ParseDirectiveCFIEscape(StringRef, SMLoc DirectiveLoc);
bool ParseDirectiveMacrosOnOff(StringRef, SMLoc DirectiveLoc);
bool ParseDirectiveMacro(StringRef, SMLoc DirectiveLoc);
@@ -2812,6 +2815,30 @@
return false;
}
+/// ParseDirectiveCFIEscape
+/// ::= .cfi_escape expression[,...]
+bool GenericAsmParser::ParseDirectiveCFIEscape(StringRef IDVal,
+ SMLoc DirectiveLoc) {
+ std::string Values;
+ int64_t CurrValue;
+ if (getParser().ParseAbsoluteExpression(CurrValue))
+ return true;
+
+ Values.push_back((uint8_t)CurrValue);
+
+ while (getLexer().is(AsmToken::Comma)) {
+ Lex();
+
+ if (getParser().ParseAbsoluteExpression(CurrValue))
+ return true;
+
+ Values.push_back((uint8_t)CurrValue);
+ }
+
+ getStreamer().EmitCFIEscape(Values);
+ return false;
+}
+
/// ParseDirectiveMacrosOnOff
/// ::= .macros_on
/// ::= .macros_off