[Bug target/31782] Invalid assembly code on initial dollar signs

["raphael.jakse at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=31782

Raphaël JAKSE <raphael.jakse at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |raphael.jakse at gmail dot com

--- Comment #6 from Raphaël JAKSE <raphael.jakse at gmail dot com> ---
New information on this bug:

With gcc version 4.8.3-3 on Debian x86-64 targeting x86_64-linux-gnu, trying to
get the assembly version of the following code with gcc -S:

void $() {}
void a() { $(); }

I get:

[...]
    call    $
[...]

With clang, I get:


[...]
    callq    ($)
[...]

Making the corresponding object file of this code with gcc -c
 - succeed with the assembly code generated by clang
 - fails with the assembly code generated by gcc with the following message:
     t.c: Assembler messages:
     t.c:30: Error: missing or invalid immediate expression `'

Adding parentheses in the assembly code generated by gcc:
 call    $ → call    ($)

make the object file generation succeed.

Clang seems to add parentheses whenever the function name starts with a dollar
sign ($).
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Subject: [Bug target/61503] RTL representation of i386 shrdl instruction is incorrect?
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ida503

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
Author: glisse
Date: Sun Jun 22 09:16:35 2014
New Revision: 211873

URL: https://gcc.gnu.org/viewcvs?rev!1873&root=gcc&view=rev
Log:
2014-06-22  Marc Glisse  <marc.glisse@inria.fr>

    PR target/61503
    * config/i386/i386.md (x86_64_shrd, x86_shrd,
    ix86_rotr<dwi>3_doubleword): Replace ashiftrt with lshiftrt.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md