Missed this one.
Ok, please proceed with the commit.
Thank you for your contribution,
Claudiu
On Sat, Oct 28, 2023 at 4:05 PM Roger Sayle wrote:
>
>
> This patch improves the code generated for X << 1 (and for X + X) when
> X is 64-bit DImode, using the same two instruction code sequence used
>
On 10/30/23 09:27, Roger Sayle wrote:
WRT H8. Bug filed so we don't lose track of it. We don't have DImode
operations
defined on the H8. First step would be DImode loads/stores and basic
arithmetic.
The H8's machine description is impressively well organized.
Would it make sense to add
Hi Jeff,
> From: Jeff Law
> Sent: 30 October 2023 15:09
> Subject: Re: [ARC PATCH] Improve DImode left shift by a single bit.
>
> On 10/28/23 07:05, Roger Sayle wrote:
> >
> > This patch improves the code generated for X << 1 (and for X + X) when
> >
On 10/28/23 07:05, Roger Sayle wrote:
This patch improves the code generated for X << 1 (and for X + X) when
X is 64-bit DImode, using the same two instruction code sequence used
for DImode addition.
For the test case:
long long foo(long long x) { return x << 1; }
GCC -O2 currently generat
