пт, 4 окт. 2024 г. в 19:07, Christophe Lyon :
>
> On Fri, 4 Oct 2024 at 16:59, Siarhei Volkau wrote:
> >
> > Hello,
> >
> > пт, 4 окт. 2024 г. в 16:48, Christophe Lyon :
> > >
> > > Hi!
> > >
> > >
> > > On Mon, 8 Jul 20
Hello,
пт, 4 окт. 2024 г. в 16:48, Christophe Lyon :
>
> Hi!
>
>
> On Mon, 8 Jul 2024 at 10:57, Siarhei Volkau wrote:
> >
> > ping
> >
> > чт, 20 июн. 2024 г. в 12:09, Siarhei Volkau :
> > >
> > > This patch deals with consequences but
ping
чт, 20 июн. 2024 г. в 12:09, Siarhei Volkau :
>
> This patch deals with consequences but not the root cause though.
>
> There are 5 cases which are subjects to rewrite:
> case #1:
> mov ip, r1
> add r2, ip
> # ip is dead here
> can be rewritten as:
> ad
чт, 4 июл. 2024 г. в 12:45, Richard Earnshaw (lists) :
>
> On 20/06/2024 08:24, Siarhei Volkau wrote:
> > If the address register is dead after load/store operation it looks
> > beneficial to use LDMIA/STMIA instead of pair of LDR/STR instructions,
> > at leas
-384 bytes / -0.42%
libstdc++: -2258 bytes / -0.30%
No tests provided because its hard to force GCC to emit HI_REGS
in a small and straightforward function.
Signed-off-by: Siarhei Volkau
---
gcc/config/arm/thumb1.md | 93 +++-
1 file changed, 92 inser
): New.
(peephole2 to rewrite DI/DF store): New.
* config/arm/iterators.md (DIDF): New.
gcc/testsuite:
* gcc.target/arm/thumb1-load-store-64bit.c: Add new test.
Signed-off-by: Siarhei Volkau
---
gcc/config/arm/arm.cc | 8 ++--
gcc/config/arm/iterat
ср, 19 июн. 2024 г. в 15:19, Richard Earnshaw (lists)
:
>
> On 18/06/2024 19:14, Siarhei Volkau wrote:
> > If the address register is dead after load/store operation it looks
> > beneficial to use LDMIA/STMIA instead of pair of LDR/STR instructions,
> > at leas
ore-64bit.c: Add new test.
Signed-off-by: Siarhei Volkau
---
gcc/config/arm/iterators.md | 3 +++
gcc/config/arm/thumb1.md | 27 ++-
.../gcc.target/arm/thumb1-load-store-64bit.c | 16 +++
3 files changed, 45 insertions(+), 1 delet
пн, 17 июн. 2024 г. в 15:43, Richard Earnshaw (lists)
:
> I like the idea behind this patch, but I think I'd try first doing this as a
> peephole2 rule to rewrite the address in this case. That has the additional
> advantage that we then estimate the size of the instruction more accurately.
In
make check seems failing
on any compilable test due to missing symbols from libnosys.
I guess that arm-gnu-elf is the correct triple but it still
advisable for proper commands to make & run the testsuite.
Signed-off-by: Siarhei Volkau
---
gcc/config/arm/arm-protos.h | 2 +-
gcc/config/arm/arm
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