https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111772
Bug ID: 111772
Summary: ICE on gfortran.dg/transpose_conjg_1.f90 in
regrename.cc
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: fkastl at suse dot cz
CC: jamborm at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux
Target: x86_64-linux
Running
gfortran src/gcc/testsuite/gfortran.dg/transpose_conjg_1.f90 -fno-tree-ter
-funroll-loops -flive-range-shrinkage --param=max-combine-insns=2
-frounding-math -mavx512bw -O1 -fharden-conditional-branches
fails with
/home/worker/buildworker/tiber-option-juggler/build/gcc/testsuite/gfortran.dg/transpose_conjg_1.f90:37:17:
37 | END program main
| ^
Error: insn does not satisfy its constraints:
(insn 1129 257 258 20 (set (reg:SF 57 xmm21 [761])
(const_double:SF 0.0 [0x0.0p+0]))
"/home/worker/buildworker/tiber-option-juggler/build/gcc/testsuite/gfortran.dg/transpose_conjg_1.f90":26:56
discrim 11 160 {*movsf_internal}
(expr_list:REG_EQUAL (const_double:SF 0.0 [0x0.0p+0])
(nil)))
during RTL pass: rnreg
/home/worker/buildworker/tiber-option-juggler/build/gcc/testsuite/gfortran.dg/transpose_conjg_1.f90:37:17:
internal compiler error: in extract_constrain_insn, at recog.cc:2692
0x7e05f2 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../src/gcc/rtl-error.cc:108
0x7e0618 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../src/gcc/rtl-error.cc:118
0x7dec5f extract_constrain_insn(rtx_insn*)
../../src/gcc/recog.cc:2692
0xfb64fc build_def_use
../../src/gcc/regrename.cc:1700
0xfb64fc regrename_analyze(bitmap_head*, bool)
../../src/gcc/regrename.cc:772
0xfb7539 regrename_optimize
../../src/gcc/regrename.cc:1983
0xfb7539 execute
../../src/gcc/regrename.cc:2022
gfortran -v output:
Using built-in specs.
COLLECT_GCC=../build/gcc/gfortran
Target: x86_64-pc-linux-gnu
Configured with: ../src/configure --disable-multilib --disable-libsanitizer
--enable-languages=c,c++,fortran --enable-checking --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20231011 (experimental) (GCC)
