On Tue, Jun 27, 2006 at 11:53:52AM +0200, Roland Persson wrote:
> I've been trying patterns like this one:
>
> (define_insn "*pip_add_di_sesi"
> [(set (match_operand:DI 0 "register_operand" "=r")
> (plus:DI (match_operand:DI 1 "register_operand" "r")
> (sign_extend:DI (
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
> Rask Ingemann Lambertsen
> Sent: Monday, June 26, 2006 19:25
> To: Roland Persson
> Cc: gcc@gcc.gnu.org
> Subject: Re: Matching of non-standard instructions
>
>
> In a
On Mon, Jun 26, 2006 at 04:16:28PM +0200, Roland Persson wrote:
> Hi,
>
> My target has some instructions that do not exactly match any predefined
> pattern names. What is the correct way to get gcc to use them in code
> generation?
Please see http://gcc.gnu.org/onlinedocs/gccint/Patterns.html>.
"Roland Persson" <[EMAIL PROTECTED]> writes:
> For example, I have an add instruction that can add a 32-bit integer (with
> or without sign extension) to a 64-bit operand and store the result as 64
> bits.
>
> C code like:
> __int64_t a = 1;
> int b = 2;
> a += b;
>
> will generate code that sig
