[llvm-commits] [llvm-gcc-4.2] r43909 - in /llvm-gcc-4.2/trunk/gcc: config/arm/arm.h llvm-convert.cpp

[Chris Lattner]

On Nov 8, 2007, at 2:10 PM, Lauro Ramos Venancio wrote:
> Author: laurov
> Date: Thu Nov  8 16:10:12 2007
> New Revision: 43909
>
> URL: http://llvm.org/viewvc/llvm-project?rev=43909&view=rev
> Log:
> Implement the '%@' inline asm ARM extension.

Hey Lauro,

in .td files, you can use "${:comment}" to print the comment  
character, does this work in inline asm?  If so, that might be a  
better thing to transform into.  See AsmPrinter::PrintSpecial for the  
code that does this,

-Chris

>
> Modified:
>     llvm-gcc-4.2/trunk/gcc/config/arm/arm.h
>     llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp
>
> Modified: llvm-gcc-4.2/trunk/gcc/config/arm/arm.h
> URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/ 
> config/arm/arm.h?rev=43909&r1=43908&r2=43909&view=diff
>
> ====================================================================== 
> ========
> --- llvm-gcc-4.2/trunk/gcc/config/arm/arm.h (original)
> +++ llvm-gcc-4.2/trunk/gcc/config/arm/arm.h Thu Nov  8 16:10:12 2007
> @@ -2651,6 +2651,15 @@
>
>  /* Doing struct copy by partial-word loads and stores is not a  
> good idea on ARM. */
>  #define TARGET_LLVM_MIN_BYTES_COPY_BY_MEMCPY 4
> +
> +/* These are a couple of extensions to the asm formats
> +     %@ prints out ASM_COMMENT_START
> +     TODO: %r prints out REGISTER_PREFIX reg_names[arg]  */
> +#define LLVM_ASM_EXTENSIONS(ESCAPED_CHAR, ASM, RESULT)	\
> +  else if ((ESCAPED_CHAR) == '@') {       		\
> +    (RESULT) += '@';                                    \
> +  }
> +
>  /* LLVM LOCAL end */
>
>  #endif /* ! GCC_ARM_H */
>
> Modified: llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/ 
> llvm-convert.cpp?rev=43909&r1=43908&r2=43909&view=diff
>
> ====================================================================== 
> ========
> --- llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp (original)
> +++ llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp Thu Nov  8 16:10:12 2007
> @@ -3375,7 +3375,11 @@
>          Result += '%';
>        } else if (EscapedChar == '=') {     // Unique ID for the  
> asm instance.
>          Result += utostr(InlineAsmNum);
> -      } else if (ISALPHA(EscapedChar)) {
> +      }
> +#ifdef LLVM_ASM_EXTENSIONS
> +      LLVM_ASM_EXTENSIONS(EscapedChar, InStr, Result)
> +#endif
> +      else if (ISALPHA(EscapedChar)) {
>          // % followed by a letter and some digits. This outputs an  
> operand in a
>          // special way depending on the letter.  We turn this into  
> LLVM ${N:o}
>          // syntax.
>
>
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