Hi, Since r11-1914-g760df6d296b8fc59796f42dca5eb14012fbfa28b, I've noticed an ICE while building glibc-2.29 when GCC is configured --target arm-none-linux-gnueabihf --with-cpu cortex-a15 --with-mode thumb --with-fpu neon-vfpv4 $ arm-none-linux-gnueabihf-gcc -c -O2 iso646.i during RTL pass: expand In file included from iso646.c:901: ../iconv/skeleton.c: In function 'gconv': ../iconv/skeleton.c:390:1: internal compiler error: in reduce_to_bit_field_precision, at expr.c:11530 390 | FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data, | ^~~~~ 0x92fdc3 reduce_to_bit_field_precision /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/expr.c:11530 0x9397b9 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode, expand_modifier) /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/expr.c:9276 0x9254c0 expand_expr_real_1(tree_node*, rtx_def*, machine_mode, expand_modifier, rtx_def**, bool) /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/expr.c:10152 0x92fbbe expand_expr /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/expr.h:282 0x92fbbe expand_operands(tree_node*, tree_node*, rtx_def*, rtx_def**, rtx_def**, expand_modifier) /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/expr.c:8065 0x939972 expand_cond_expr_using_cmove /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/expr.c:8519 0x939972 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode, expand_modifier) /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/expr.c:9869 0x7ead60 expand_gimple_stmt_1 /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/cfgexpand.c:3787 0x7ead60 expand_gimple_stmt /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/cfgexpand.c:3847 0x7f20cb expand_gimple_basic_block /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/cfgexpand.c:5888 0x7f47bb execute /home/christophe.lyon/src/GCC/sources/gcc-fsf-git/trunk/gcc/cfgexpand.c:6572
I am also seeing this on an O3 bootstrap on Raspberry Pi 3+.
This was fixed by the fix for PR96151, thanks.