https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94902
Bug ID: 94902
Summary: [10 Regression] internal compiler error:
output_operand: invalid use of register 'frame'
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: anbu1024.me at gmail dot com
Target Milestone: ---
$ cat reduced.c
void foo ( void ) {
register int x asm ( "19" ) ;
x -- ;
}
--------------------------------------------------------------------------------
$ gcc-10 --version
gcc (GCC) 10.0.1 20200419 (experimental)
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
--------------------------------------------------------------------------------
$ gcc-10 reduced.c
reduced.c: In function ‘foo’:
reduced.c:5:1: error: frame cannot be used in ‘asm’ here
5 | }
| ^
during RTL pass: final
reduced.c:5:1: internal compiler error: output_operand: invalid use of register
'frame'
0xa58bb6 output_operand_lossage(char const*, ...)
../../gcc-10-20200419/gcc/final.c:3609
0xa58ee1 output_operand(rtx_def*, int)
../../gcc-10-20200419/gcc/final.c:4051
0xa59a3d output_asm_insn(char const*, rtx_def**)
../../gcc-10-20200419/gcc/final.c:3963
0xa5d3e7 final_scan_insn_1
../../gcc-10-20200419/gcc/final.c:3106
0xa5d6ab final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
../../gcc-10-20200419/gcc/final.c:3152
0xa5d7b6 final_1
../../gcc-10-20200419/gcc/final.c:2020
0xa5e374 rest_of_handle_final
../../gcc-10-20200419/gcc/final.c:4658
0xa5e374 execute
../../gcc-10-20200419/gcc/final.c:4736
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.
--------------------------------------------------------------------------------
gcc-9 --version
gcc (GCC) 9.3.1 20200425
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
--------------------------------------------------------------------------------
$ gcc-9 reduced.c
reduced.c: In function ‘foo’:
reduced.c:5:1: error: frame cannot be used in asm here
5 | }
| ^
reduced.c:5: confused by earlier errors, bailing out
