[Bug target/103613] New: microblaze: ICE in reload pass when building PIE

[Bug target/103613] New: microblaze: ICE in reload pass when building PIE

[siddhesh at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103613

            Bug ID: 103613
           Summary: microblaze: ICE in reload pass when building PIE
           Product: gcc
           Version: 11.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: siddhesh at gcc dot gnu.org
  Target Milestone: ---

This was found when running build-many-glibcs.py for microblazeel-linux-gnu
with this patch[1] (without the hunks that disable this for microblaze) to
build glibc programs as PIE.  I'll post clearer steps to reproduce once the
glibc patch is pushed.

microblazeel-glibc-linux-gnu-gcc tstdiomisc.c -c -std=gnu11 -fgnu89-inline  -g
-O2 -Wall -Wwrite-strings -Wundef -Werror -fmerge-all-constants -frounding-math
-fno-stack-protector -fno-common -Wstrict-prototypes -Wold-style-definition
-fmath-errno   -fpie         -I../include
-Ibuild-many-3/build/glibcs/microblazeel-linux-gnu/glibc/stdio-common 
-Ibuild-many-3/build/glibcs/microblazeel-linux-gnu/glibc 
-I../sysdeps/unix/sysv/linux/microblaze/le 
-I../sysdeps/unix/sysv/linux/microblaze  -I../sysdeps/microblaze/nptl 
-I../sysdeps/unix/sysv/linux/include -I../sysdeps/unix/sysv/linux 
-I../sysdeps/nptl  -I../sysdeps/pthread  -I../sysdeps/gnu 
-I../sysdeps/unix/inet  -I../sysdeps/unix/sysv  -I../sysdeps/unix 
-I../sysdeps/posix  -I../sysdeps/microblaze/le  -I../sysdeps/microblaze 
-I../sysdeps/wordsize-32  -I../sysdeps/ieee754/soft-fp 
-I../sysdeps/ieee754/flt-32  -I../sysdeps/ieee754/dbl-64  -I../sysdeps/ieee754 
-I../sysdeps/generic  -I.. -I../libio -I.  -D_LIBC_REENTRANT -include
build-many-3/build/glibcs/microblazeel-linux-gnu/glibc/libc-modules.h
-DMODULE_NAME=testsuite -include ../include/libc-symbols.h  -DPIC    
-DTOP_NAMESPACE=glibc -D_IO_MTSAFE_IO -o bu
ild-many-3/build/glibcs/microblazeel-linux-gnu/glibc/stdio-common/tstdiomisc.o
-MD -MP -MF
build-many-3/build/glibcs/microblazeel-linux-gnu/glibc/stdio-common/tstdiomisc.o.dt
-MT
build-many-3/build/glibcs/microblazeel-linux-gnu/glibc/stdio-common/tstdiomisc.o
during RTL pass: reload
tstdiomisc.c: In function ‘main’:
tstdiomisc.c:289:1: internal compiler error: in gen_reg_rtx, at emit-rtl.c:1168
  289 | }
      | ^
0x55e2c5 gen_reg_rtx(machine_mode)
        build-many-3/src/gcc/gcc/emit-rtl.c:1168
0x7a0696 force_reg(machine_mode, rtx_def*)
        build-many-3/src/gcc/gcc/explow.c:687
0xfcf7f0 gen_movdf(rtx_def*, rtx_def*)
        build-many-3/src/gcc/gcc/config/microblaze/microblaze.md:1226
0x7c0f77 rtx_insn* insn_gen_fn::operator()<rtx_def*, rtx_def*>(rtx_def*,
rtx_def*) const
        build-many-3/src/gcc/gcc/recog.h:407
0x7c0f77 emit_move_insn_1(rtx_def*, rtx_def*)
        build-many-3/src/gcc/gcc/expr.c:3766
0x7c7c1c gen_move_insn(rtx_def*, rtx_def*)
        build-many-3/src/gcc/gcc/expr.c:3956
0xa3eeaa gen_reload
        build-many-3/src/gcc/gcc/reload1.c:8617
0xa46e21 emit_input_reload_insns
        build-many-3/src/gcc/gcc/reload1.c:7530
0xa46e21 do_input_reload
        build-many-3/src/gcc/gcc/reload1.c:7817
0xa46e21 emit_reload_insns
        build-many-3/src/gcc/gcc/reload1.c:8005
0xa46e21 reload_as_needed
        build-many-3/src/gcc/gcc/reload1.c:4546
0xa4a953 reload(rtx_insn*, int)
        build-many-3/src/gcc/gcc/reload1.c:1047
0x8fe433 do_reload
        build-many-3/src/gcc/gcc/ira.c:5847
0x8fe433 execute
        build-many-3/src/gcc/gcc/ira.c:6021
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.

[1]
https://patchwork.sourceware.org/project/glibc/patch/20211207082638.1960585-1-siddhesh@sourceware.org/

[Bug target/103613] microblaze: ICE in reload pass when building PIE

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103613

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 87438

*** This bug has been marked as a duplicate of bug 87438 ***