On Apr 19 2025, Jeff Law wrote:
> Well, I *think* Andreas's comment was suggesting that the patch was caused
> a build failure in libstdc++, so that needs to be addressed as before this
> could go forward.
Yes, it breaks the -mlra build.
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerpr
On 1/1/25 2:08 PM, Keith Packard wrote:
From: Richard Sandiford
Date: Mon, 30 Dec 2024 12:18:40 +
...that could be handled by adding:
&& GET_MODE_INNER (from) != GET_MODE_INNER (to)
I'll let those of you who understand this code far better than I do
figure out whether that's the r
during RTL pass: reload
../../../../../libstdc++-v3/src/c++20/tzdb.cc: In function ‘std::istream&
std::chrono::{anonymous}::operator>>(std::istream&, at_time&)’:
../../../../../libstdc++-v3/src/c++20/tzdb.cc:2080:5: internal compiler error:
in gen_rtx_SUBREG, at emit-rtl.cc:1032
2080 | }
From: Richard Sandiford
Date: Mon, 30 Dec 2024 12:18:40 +
> ...that could be handled by adding:
>
> && GET_MODE_INNER (from) != GET_MODE_INNER (to)
I'll let those of you who understand this code far better than I do
figure out whether that's the right plan. I figured that copying how it
w
Keith Packard writes:
>> insn_propagation would previously only replace (reg:M H) with X
>> for some hard register H if the uses of H were also in mode M.
>> This patch extends it to handle simple mode punning too.
>
> (this is from GCC commit 9d20529d94b23275885f380d155fe8671ab5353a)
>
> Looks li
> insn_propagation would previously only replace (reg:M H) with X
> for some hard register H if the uses of H were also in mode M.
> This patch extends it to handle simple mode punning too.
(this is from GCC commit 9d20529d94b23275885f380d155fe8671ab5353a)
Looks like this breaks m68k floating po
On 7/10/24 9:32 AM, Richard Sandiford wrote:
insn_propagation would previously only replace (reg:M H) with X
for some hard register H if the uses of H were also in mode M.
This patch extends it to handle simple mode punning too.
The original motivation was to try to get rid of the execution
f
insn_propagation would previously only replace (reg:M H) with X
for some hard register H if the uses of H were also in mode M.
This patch extends it to handle simple mode punning too.
The original motivation was to try to get rid of the execution
frequency test in aarch64_split_simd_shift_p, but d
