On 2023/11/14 0:43, Dimitar Dimitrov wrote:
On Sun, Nov 12, 2023 at 08:08:10PM +0800, Lehua Ding wrote:
V3 Changes:
1. fix three ICE.
2. rebase
Hi,
These patchs try to support subreg coalesce feature in
register allocation passes (ira and lra).
Hi Lehua,
V3 indeed fixes the arm-none-eabi build. It's also confirmed by Linaro CI:
https://patchwork.sourceware.org/project/gcc/patch/20231112120817.2635864-8-lehua.d...@rivai.ai/
But avr and pru backends are still broken, albeit with different crash
signatures. Both targets are peculiar because they have
UNITS_PER_WORD=1. I'll try building some 16-bit target like msp430.
AVR fails when building libgcc:
/mnt/nvme/dinux/local-workspace/gcc/libgcc/config/avr/lib2funcs.c: In function
'__roundlr':
/mnt/nvme/dinux/local-workspace/gcc/libgcc/config/avr/lib2funcs.c:115:3:
internal compiler error: in check_allocation, at ira.cc:2673
115 | }
| ^
/mnt/nvme/dinux/local-workspace/gcc/libgcc/config/avr/lib2funcs.c:106:3: note:
in expansion of macro 'ROUND2'
106 | ROUND2 (FX)
| ^~~~~~
/mnt/nvme/dinux/local-workspace/gcc/libgcc/config/avr/lib2funcs.c:117:1: note:
in expansion of macro 'ROUND1'
117 | ROUND1(L_LABEL)
| ^~~~~~
0xc80b8d check_allocation
/mnt/nvme/dinux/local-workspace/gcc/gcc/ira.cc:2673
0xc89451 ira
/mnt/nvme/dinux/local-workspace/gcc/gcc/ira.cc:5873
0xc89451 execute
/mnt/nvme/dinux/local-workspace/gcc/gcc/ira.cc:6104
Script I'm using to build avr:
https://github.com/dinuxbg/gnupru/blob/master/testing/manual-build-avr.sh
PRU fails building newlib:
/mnt/nvme/dinux/local-workspace/newlib/newlib/libc/stdlib/gdtoa-gdtoa.c:835:9:
internal compiler error: in lra_create_live_ranges, at lra-lives.cc:1933
835 | }
| ^
0x6b951c lra_create_live_ranges(bool, bool)
/mnt/nvme/dinux/local-workspace/gcc/gcc/lra-lives.cc:1933
0xd9320c lra(_IO_FILE*)
/mnt/nvme/dinux/local-workspace/gcc/gcc/lra.cc:2638
0xd3e519 do_reload
/mnt/nvme/dinux/local-workspace/gcc/gcc/ira.cc:5960
0xd3e519 execute
/mnt/nvme/dinux/local-workspace/gcc/gcc/ira.cc:6148
Script I'm using to build pru:
https://github.com/dinuxbg/gnupru/blob/master/testing/manual-build-pru.sh
These ICE will fixed in the V4 patchs and both targets build
successfully in my machine, thank you so much for the reported.
--
Best,
Lehua (RiVAI)
lehua.d...@rivai.ai
