search for: asmlexer

Hello, I would like to gather some ideas and opinions on how to make the default AsmLexer more flexible when dealing with Identifiers. When the lexer emits something as an "Identifier" (read. String of characters) it means that it needs to be parsed all at once in a single go, even if it contains elements that might be wanted to be parsed as separate entities. In that case it...

The attached patch implements simple target-specific AsmLexers for ARM and Thumb. They are shallow subclasses of a common tokenizer that uses a std::map of register names to IDs to recognize register names, and reports those as AsmToken::Register tokens instead of identifiers. I intend to use the ARM and Thumb AsmLexers as part of an extension of the Enhance...

...PSYri:     DecodeVPERMILPSMask(8, MI->getOperand(2).getImm(),                         ShuffleMask);     Src1Name = getRegName(MI->getOperand(0).getReg()); The 'Src1Name' variable is assigned values twice successively. So break instruction should be at line 212. ---- lib/MC/MCParser/AsmLexer.cpp:149   while (CurChar != '\n' && CurChar != '\n' && CurChar != EOF) There are identical sub-expressions to the left and to the right of the '&&' operator: CurChar != '\n' && CurChar != '\n'. The second expression should pro...

On Aug 4, 2011, at 9:03 AM, Duncan Sands wrote: >> >> lib/MC/MCParser/AsmLexer.cpp:149 >> while (CurChar != '\n'&& CurChar != '\n'&& CurChar != EOF) >> >> There are identical sub-expressions to the left and to the right of the '&&' >> operator: CurChar != '\n'&& CurChar != '\n...

...ShuffleMask); > Src1Name = getRegName(MI->getOperand(0).getReg()); > > The 'Src1Name' variable is assigned values twice successively. So break > instruction should be at line 212. I've added the missing "break". > > ---- > > lib/MC/MCParser/AsmLexer.cpp:149 > while (CurChar != '\n'&& CurChar != '\n'&& CurChar != EOF) > > There are identical sub-expressions to the left and to the right of the '&&' > operator: CurChar != '\n'&& CurChar != '\n'. The second e...

A friendlier error message in that situation is definitely a good thing. -Jim On Sep 5, 2011, at 1:34 PM, Степан wrote: > Hi, everybody. > > I am a newbie in llvm development. I found some strange behaviour in llvm-mc. Files without empty string at the eof doesn't proceed properly. > > llvm-mc prints something like this: > <stdin>:5:18: error: unexpected token in

...names, compilation would succeed. Such behavior is due to the glitch in AsmParser::expandMacro() logic: it treats first non-alphanumeric character as the end of argument instantiation token. Following patch fixes the issue (IsIdentifierChar routine implementation was borrowed from lib/MC/MCParser/AsmLexer.cpp): =================================================================== --- lib/MC/MCParser/AsmParser.cpp (revision 157279) +++ lib/MC/MCParser/AsmParser.cpp (working copy) @@ -1436,6 +1436,11 @@ NewDiag.print(0, OS); } +/// LexIdentifier: [a-zA-Z_.][a-zA-Z0-9_$.@]* +static bool IsIdentif...

Hi, everybody. I am a newbie in llvm development. I found some strange behaviour in llvm-mc. Files without empty string at the eof doesn't proceed properly. llvm-mc prints something like this: <stdin>:5:18: error: unexpected token in argument list It looks like a bug. At least we should print: <stdin>:5:18: error: no newline at the end of file! If yes, I create it in bugzilla

...Linking CXX executable ../../bin/llvm-mc cd /home/john/src/llvm_build/tools/llvm-mc && /usr/bin/cmake -E cmake_link_script CMakeFiles/llvm-mc.dir/link.txt --verbose=1 /usr/bin/c++ -g -fPIC CMakeFiles/llvm-mc.dir/llvm-mc.cpp.o CMakeFiles/llvm-mc.dir/AsmExpr.cpp.o CMakeFiles/llvm-mc.dir/AsmLexer.cpp.o CMakeFiles/llvm-mc.dir/AsmParser.cpp.o -o ../../bin/llvm-mc -rdynamic ../../lib/libLLVMAVRCodeGen.a ../../lib/libLLVMAVRAsmPrinter.a ../../lib/libLLVMAVRInfo.a ../../lib/libLLVMMC.a ../../lib/libLLVMSupport.a ../../lib/libLLVMSystem.a -ldl ../../lib/libLLVMSelectionDAG.a ../../lib/libLLVMAna...

...100644 lib/MC/MCParser/MachOAsmParser.cpp diff --git a/include/llvm/MC/MCParser/AsmParser.h b/include/llvm/MC/MCParser/AsmParser.h index e929fd1..dc74299 100644 --- a/include/llvm/MC/MCParser/AsmParser.h +++ b/include/llvm/MC/MCParser/AsmParser.h @@ -17,6 +17,7 @@ #include "llvm/MC/MCParser/AsmLexer.h" #include "llvm/MC/MCParser/AsmCond.h" #include "llvm/MC/MCParser/MCAsmParser.h" +#include "llvm/MC/MCParser/MCParsedAsmOperand.h" #include "llvm/MC/MCSectionMachO.h" #include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCAsmInfo.h&quo...

...vm-2.8/include/llvm/MC/MCObjectStreamer.h -- Installing: /usr/local/llvm-2.8/include/llvm/MC/MCObjectWriter.h -- Installing: /usr/local/llvm-2.8/include/llvm/MC/MCParser -- Installing: /usr/local/llvm-2.8/include/llvm/MC/MCParser/AsmCond.h -- Installing: /usr/local/llvm-2.8/include/llvm/MC/MCParser/AsmLexer.h -- Installing: /usr/local/llvm-2.8/include/llvm/MC/MCParser/MCAsmLexer.h -- Installing: /usr/local/llvm-2.8/include/llvm/MC/MCParser/MCAsmParser.h -- Installing: /usr/local/llvm-2.8/include/llvm/MC/MCParser/MCAsmParserExtension.h -- Installing: /usr/local/llvm-2.8/include/llvm/MC/MCParser/MCParse...

On Thu, Sep 30, 2010 at 3:08 PM, Samuel Williams <space.ship.traveller at gmail.com> wrote: > Hi, > > I might just be doing something stupid, but when I do > > $ cmake -DCMAKE_INSTALL_PREFIX=/usr/local/llvm-2.8 -DCMAKE_BUILD_TYPE=Release .. > $ sudo make install > > I don't get the expected headers in >        /usr/local/llvm-2.8/include/llvm > > It is

Hi, I might just be doing something stupid, but when I do $ cmake -DCMAKE_INSTALL_PREFIX=/usr/local/llvm-2.8 -DCMAKE_BUILD_TYPE=Release .. $ sudo make install I don't get the expected headers in /usr/local/llvm-2.8/include/llvm It is simply an empty directory. What am I doing wrong? This is on Mac OS X, CMake 2.8+ Kind regards, Samuel

...for Release+Asserts build make[3]: Leaving directory '/home/NIKHILREDDY/WORK/LLVM_OBJ/lib/Transforms/ObjCARC' make[2]: Entering directory '/home/NIKHILREDDY/WORK/LLVM_OBJ/lib/MC' make[3]: Entering directory '/home/NIKHILREDDY/WORK/LLVM_OBJ/lib/MC/MCParser' llvm[3]: Compiling AsmLexer.cpp for Release+Asserts build llvm[3]: Compiling PruneEH.cpp for Release+Asserts build llvm[2]: Building Release+Asserts Archive Library libLLVMLTO.a make[2]: Leaving directory '/home/NIKHILREDDY/WORK/LLVM_OBJ/lib/LTO' llvm[2]: Compiling InterferenceCache.cpp for Release+Asserts build llvm[...