https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100775
qinzhao at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
Last reconfirmed| |2022-01-24
--- Comment #1 from qinzhao at gcc dot gnu.org ---
I can repeat this bug with the latest upstream gcc:
[opc@qinzhao-ol8u3-x86 100775]$ sh t
/home/opc/Install/cross/bin/armv7a-hardfloat-linux-gnueabi-gcc -mthumb
-fzero-call-used-regs=used t.c -S
exit_block_uses = 0 [r0] 3 [r3] 7 [r7] 13 [sp] 14 [lr] 102 [sfp]
df->exit_block_uses = 0 [r0] 7 [r7] 13 [sp] 14 [lr] 102 [sfp]
during RTL pass: mach
t.c: In function 'foo':
t.c:5:1: internal compiler error: in df_exit_block_bitmap_verify, at
df-scan.cc:4178
5 | }
| ^
0xc6a0bf df_exit_block_bitmap_verify
../../latest-gcc/gcc/df-scan.cc:4178
0xc6a355 df_scan_verify()
../../latest-gcc/gcc/df-scan.cc:4231
0xc501a8 df_verify()
../../latest-gcc/gcc/df-core.cc:1818
0xc4eaa4 df_analyze_1
../../latest-gcc/gcc/df-core.cc:1214
0xc4ee68 df_analyze()
../../latest-gcc/gcc/df-core.cc:1290
0x194675a thumb2_reorg
../../latest-gcc/gcc/config/arm/arm.cc:18999
0x1947d60 arm_reorg
../../latest-gcc/gcc/config/arm/arm.cc:19218
0x1300436 execute
../../latest-gcc/gcc/reorg.cc:3927
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
