[PATCH] Add option to use temporary file for assembling with clang

[Rafael Espíndola]

On 4 December 2013 19:02, David Peixotto <dpeixott at codeaurora.org> wrote:
> Please help to review this patch.
>
> This commit adds the flag '-via-file-asm' to the clang driver. The
> purpose of this flag is to have a way to test that clang can consume
> the assembly code that it outputs. When passed this flag, clang will
> generate a temporary file that contains the assembly output from the
> compile step. This assembly file will then be consumed by either the
> integrated assembler or the external assembler. To test that the
> integrated assembler can consume its own output compile with:
>
>   $ clang -integrated-assembler -via-file-asm
>
> Without the '-via-file-asm' flag, clang would directly create the
> object file when using the integrated assembler. With the flag it
> will first create the temporary assembly file and then read that
> file and assemble it with the integrated assembler.
>
> The flow is similar to -save-temps, except that it only effects
> the assembly input and the temporary file is not saved.

It seems a reasonable dev option to have.
* Can you test that the file is deleted?
* Do we have a more regular naming patter for developer options?
Should this be a -ccc-* option? Should be be a InternalDebugOpt?

Cheers,
Rafael