https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107088
Bug ID: 107088
Summary: [13 Regression] cselib ICE building __trunctfxf2 on
ia64
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: jsm28 at gcc dot gnu.org
CC: stefansf at linux dot ibm.com
Target Milestone: ---
Target: ia64-*-*
Created attachment 53641
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53641&action=edit
preprocessed source
commit d0b00b63a39108311f2e6f9cbe9072579f57df7c, "cselib: Keep track of further
subvalue relations", introduced an ICE building libgcc for ia64-linux-gnu.
Compile with attached testcase with -O2.
/scratch/jmyers/glibc/many13/src/gcc/libgcc/soft-fp/trunctfxf2.c: In function
'__trunctfxf2':
/scratch/jmyers/glibc/many13/src/gcc/libgcc/soft-fp/trunctfxf2.c:52:1: internal
compiler error: in require, at machmode.h:297
52 | }
| ^
0x876576 opt_mode<scalar_int_mode>::require() const
/scratch/jmyers/glibc/many13/src/gcc/gcc/machmode.h:297
0x876576 void mode_iterator::get_known_wider<scalar_int_mode>(scalar_int_mode*)
/scratch/jmyers/glibc/many13/src/gcc/gcc/machmode.h:1124
0x876576 new_cselib_val
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:1579
0x873e4e cselib_lookup_1
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:2315
0x873e4e cselib_lookup(rtx_def*, machine_mode, int, machine_mode)
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:2431
0x876aff cselib_hash_rtx
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:1308
0x876e69 cselib_hash_rtx
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:1505
0x873c5f cselib_lookup_1
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:2375
0x873c5f cselib_lookup(rtx_def*, machine_mode, int, machine_mode)
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:2431
0x877a6a cselib_record_sets
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:2932
0x87867d cselib_process_insn(rtx_insn*)
/scratch/jmyers/glibc/many13/src/gcc/gcc/cselib.cc:3159
0x1661d1c dse_step1
/scratch/jmyers/glibc/many13/src/gcc/gcc/dse.cc:2771
0x1661d1c rest_of_handle_dse
/scratch/jmyers/glibc/many13/src/gcc/gcc/dse.cc:3687
0x1661d1c execute
/scratch/jmyers/glibc/many13/src/gcc/gcc/dse.cc:3803
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
