[PATCH] AsmParser: add support for .end directive
Saleem Abdulrasool
compnerd at compnerd.org
Sun Dec 15 19:27:59 PST 2013
Fix for target specific handling of end directive (e.g. MIPS).
http://llvm-reviews.chandlerc.com/D2414
CHANGE SINCE LAST DIFF
http://llvm-reviews.chandlerc.com/D2414?vs=6109&id=6112#toc
Files:
lib/MC/MCParser/AsmParser.cpp
test/MC/AsmParser/directive_end.s
Index: lib/MC/MCParser/AsmParser.cpp
===================================================================
--- lib/MC/MCParser/AsmParser.cpp
+++ lib/MC/MCParser/AsmParser.cpp
@@ -358,7 +358,8 @@
DK_CFI_RESTORE, DK_CFI_ESCAPE, DK_CFI_SIGNAL_FRAME, DK_CFI_UNDEFINED,
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
+ DK_SLEB128, DK_ULEB128,
+ DK_END
};
/// \brief Maps directive name --> DirectiveKind enum, for
@@ -464,6 +465,9 @@
// "align"
bool parseDirectiveMSAlign(SMLoc DirectiveLoc, ParseStatementInfo &Info);
+ // "end"
+ bool parseDirectiveEnd(SMLoc DirectiveLoc);
+
void initializeDirectiveKindMap();
};
}
@@ -1516,6 +1520,8 @@
return parseDirectiveEndMacro(IDVal);
case DK_PURGEM:
return parseDirectivePurgeMacro(IDLoc);
+ case DK_END:
+ return parseDirectiveEnd(IDLoc);
}
return Error(IDLoc, "unknown directive");
@@ -3751,6 +3757,20 @@
return false;
}
+/// parseDirectiveEnd
+/// ::= .end
+bool AsmParser::parseDirectiveEnd(SMLoc DirectiveLoc) {
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.end' directive");
+
+ Lex();
+
+ while (Lexer.isNot(AsmToken::Eof))
+ Lex();
+
+ return false;
+}
+
/// parseDirectiveEndIf
/// ::= .endif
bool AsmParser::parseDirectiveEndIf(SMLoc DirectiveLoc) {
@@ -3836,6 +3856,7 @@
DirectiveKindMap[".ifnotdef"] = DK_IFNOTDEF;
DirectiveKindMap[".elseif"] = DK_ELSEIF;
DirectiveKindMap[".else"] = DK_ELSE;
+ DirectiveKindMap[".end"] = DK_END;
DirectiveKindMap[".endif"] = DK_ENDIF;
DirectiveKindMap[".skip"] = DK_SKIP;
DirectiveKindMap[".space"] = DK_SPACE;
Index: test/MC/AsmParser/directive_end.s
===================================================================
--- /dev/null
+++ test/MC/AsmParser/directive_end.s
@@ -0,0 +1,11 @@
+# RUN: llvm-mc -triple i386-unknown-unknown %s -filetype obj -o - \
+# RUN: | llvm-readobj -t | FileCheck %s
+
+ .end
+
+its_a_tarp:
+ int $0x3
+
+# CHECK: Symbol {
+# CHECK-NOT: Name: its_a_tarp
+
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