Hi,
On 2020/2/24 4:16 PM, Marc Glisse wrote:
On Mon, 24 Feb 2020, Li Jia He wrote:
Hi,
On 2020/2/22 11:12 PM, Marc Glisse wrote:
On Tue, 18 Feb 2020, Li Jia He wrote:
Also the pattern doing the standalone transform does
/* Optimize TRUNC_MOD_EXPR by a power of two into a BIT_AND_EXPR,
On Mon, 24 Feb 2020, Li Jia He wrote:
Hi,
On 2020/2/22 11:12 PM, Marc Glisse wrote:
On Tue, 18 Feb 2020, Li Jia He wrote:
Also the pattern doing the standalone transform does
/* Optimize TRUNC_MOD_EXPR by a power of two into a BIT_AND_EXPR,
i.e. "X % C" into "X & (C - 1)", if X and C ar
Hi,
On 2020/2/22 11:12 PM, Marc Glisse wrote:
On Tue, 18 Feb 2020, Li Jia He wrote:
Also the pattern doing the standalone transform does
/* Optimize TRUNC_MOD_EXPR by a power of two into a BIT_AND_EXPR,
i.e. "X % C" into "X & (C - 1)", if X and C are positive.
Also optimize A % (C <<
On Tue, 18 Feb 2020, Li Jia He wrote:
Also the pattern doing the standalone transform does
/* Optimize TRUNC_MOD_EXPR by a power of two into a BIT_AND_EXPR,
i.e. "X % C" into "X & (C - 1)", if X and C are positive.
Also optimize A % (C << N) where C is a power of 2,
to A & ((C << N
Hi,
On 2020/2/17 4:30 PM, Richard Biener wrote:
On Mon, 17 Feb 2020, Jakub Jelinek wrote:
On Mon, Feb 17, 2020 at 09:01:13AM +0100, Richard Biener wrote:
On Mon, 17 Feb 2020, Li Jia He wrote:
This patch wants to fix PR66552 on gimple and optimizes (x shift (n mod C))
to (x shift (n bit_and (
Li Jia He writes:
> Hi,
> @@ -546,6 +546,12 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
> (simplify
>(mod (mod@2 @0 @1) @1)
>@2)
> + /* Optimize (x shift (n mod C)) to (x shift (n bit_and (C - 1))) when C is a
> +constant and power of two. */
> + (for shift (lshift rshift)
> + (simpli
On Mon, 17 Feb 2020, Jakub Jelinek wrote:
> On Mon, Feb 17, 2020 at 09:01:13AM +0100, Richard Biener wrote:
> > On Mon, 17 Feb 2020, Li Jia He wrote:
> > > This patch wants to fix PR66552 on gimple and optimizes (x shift (n mod
> > > C))
> > > to (x shift (n bit_and (C - 1))) when C is a constant
On Mon, Feb 17, 2020 at 09:01:13AM +0100, Richard Biener wrote:
> On Mon, 17 Feb 2020, Li Jia He wrote:
> > This patch wants to fix PR66552 on gimple and optimizes (x shift (n mod C))
> > to (x shift (n bit_and (C - 1))) when C is a constant and power of two as
> > discussed in PR66552.
> >
> > Th
On Mon, 17 Feb 2020, Li Jia He wrote:
> Hi,
>
> This patch wants to fix PR66552 on gimple and optimizes (x shift (n mod C))
> to (x shift (n bit_and (C - 1))) when C is a constant and power of two as
> discussed in PR66552.
>
> The regression testing for the patch was done on GCC mainline on
>
Hi,
This patch wants to fix PR66552 on gimple and optimizes (x shift (n mod C))
to (x shift (n bit_and (C - 1))) when C is a constant and power of two as
discussed in PR66552.
The regression testing for the patch was done on GCC mainline on
powerpc64le-unknown-linux-gnu (Power 9 LE)
with no
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