ARM support the .arm and .thumb directives for assembly mode switching.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146042 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index ded7d50..07f8f42 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -92,6 +92,7 @@
unsigned &ShiftAmount);
bool parseDirectiveWord(unsigned Size, SMLoc L);
bool parseDirectiveThumb(SMLoc L);
+ bool parseDirectiveARM(SMLoc L);
bool parseDirectiveThumbFunc(SMLoc L);
bool parseDirectiveCode(SMLoc L);
bool parseDirectiveSyntax(SMLoc L);
@@ -5622,6 +5623,8 @@
return parseDirectiveWord(4, DirectiveID.getLoc());
else if (IDVal == ".thumb")
return parseDirectiveThumb(DirectiveID.getLoc());
+ else if (IDVal == ".arm")
+ return parseDirectiveARM(DirectiveID.getLoc());
else if (IDVal == ".thumb_func")
return parseDirectiveThumbFunc(DirectiveID.getLoc());
else if (IDVal == ".code")
@@ -5663,9 +5666,22 @@
return Error(L, "unexpected token in directive");
Parser.Lex();
- // TODO: set thumb mode
- // TODO: tell the MC streamer the mode
- // getParser().getStreamer().Emit???();
+ if (!isThumb())
+ SwitchMode();
+ getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
+ return false;
+}
+
+/// parseDirectiveARM
+/// ::= .arm
+bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return Error(L, "unexpected token in directive");
+ Parser.Lex();
+
+ if (isThumb())
+ SwitchMode();
+ getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
return false;
}