https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116350
Bug ID: 116350
Summary: [15 regression] ICE in expand_fix, at optabs.cc:5948
etc.
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: tsamismanolis at gmail dot com
Target Milestone: ---
Target: i386-pc-solaris2.11, sparc-sun-solaris2.11
Between d0bc1cbf6a8938220f42d8102031fd6f6644e171 and
e9738e77674e23f600315ca1efed7d1c7944d0cc, Solaris bootstrap got broken libgo on
both sparc and x86:
* sparc, building both 32 and 64-bit math.lo:
during RTL pass: ce1
/vol/gcc/src/hg/master/local/libgo/go/math/exp.go: In function ‘math.exp2’:
/vol/gcc/src/hg/master/local/libgo/go/math/exp.go:147:1: internal compiler
error: in expand_fix, at optabs.cc:5948
147 | func exp2(x float64) float64 {
| ^
0x1f113c3 internal_error(char const*, ...)
/vol/gcc/src/hg/master/local/gcc/diagnostic-global-context.cc:491
0x1f0317b fancy_abort(char const*, int, char const*)
/vol/gcc/src/hg/master/local/gcc/diagnostic.cc:1772
0xe5a153 expand_fix(rtx_def*, rtx_def*, int)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:5948
0xaed94b force_operand(rtx_def*, rtx_def*)
/vol/gcc/src/hg/master/local/gcc/expr.cc:8708
0xaed763 force_operand(rtx_def*, rtx_def*)
/vol/gcc/src/hg/master/local/gcc/expr.cc:8695
0xab576b copy_to_mode_reg(machine_mode, rtx_def*)
/vol/gcc/src/hg/master/local/gcc/explow.cc:655
0xe4e2d3 maybe_legitimize_operand
/vol/gcc/src/hg/master/local/gcc/optabs.cc:8041
0xe4e2d3 maybe_legitimize_operands(insn_code, unsigned int, unsigned int,
expand_operand*)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:8184
0xe4ada7 maybe_gen_insn(insn_code, unsigned int, expand_operand*)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:8203
0xe4cab7 maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:8258
0xe4cab7 emit_conditional_move_1
/vol/gcc/src/hg/master/local/gcc/optabs.cc:5229
0xe4cdff emit_conditional_move(rtx_def*, rtx_comparison, rtx_def*, rtx_def*,
machine_mode, int)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:5142
0x1d10f0b noce_emit_cmove
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:1773
0x1d17df3 try_emit_cmove_seq
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:3406
0x1d17df3 noce_convert_multiple_sets_1
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:3687
0x1d1870f noce_convert_multiple_sets
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:3492
0x1d1d4ab noce_process_if_block
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:4025
0x1d1d4ab noce_find_if_block
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:4706
0x1d1d4ab find_if_header
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:4911
0x1d1d4ab if_convert
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:6058
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.
make: *** [Makefile:3055: math.lo] Error 1
* x86, building 64-bit time.lo:
during RTL pass: ce1
/vol/gcc/src/hg/master/local/libgo/go/time/zoneinfo_read.go: In function
‘time.loadLocation.isra’:
/vol/gcc/src/hg/master/local/libgo/go/time/zoneinfo_read.go:531:1: internal
compiler error: in expand_simple_binop, at optabs.cc:1264
531 | func loadLocation(name string, sources []string) (z *Location, firstErr
error) {
| ^
0xaa758f4 internal_error(char const*, ...)
/vol/gcc/src/hg/master/local/gcc/diagnostic-global-context.cc:491
0xaa66d71 fancy_abort(char const*, int, char const*)
/vol/gcc/src/hg/master/local/gcc/diagnostic.cc:1772
0x9355e21 expand_simple_binop(machine_mode, rtx_code, rtx_def*, rtx_def*,
rtx_def*, int, optab_methods)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:1264
0x9355e21 expand_simple_binop(machine_mode, rtx_code, rtx_def*, rtx_def*,
rtx_def*, int, optab_methods)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:1259
0x9010465 force_operand(rtx_def*, rtx_def*)
/vol/gcc/src/hg/master/local/gcc/expr.cc:8687
0x8fe6ae1 copy_to_mode_reg(machine_mode, rtx_def*)
/vol/gcc/src/hg/master/local/gcc/explow.cc:655
0x9347dfa maybe_legitimize_operand
/vol/gcc/src/hg/master/local/gcc/optabs.cc:8041
0x9347dfa maybe_legitimize_operands(insn_code, unsigned int, unsigned int,
expand_operand*)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:8184
0x9344932 maybe_gen_insn(insn_code, unsigned int, expand_operand*)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:8203
0x934649f maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:8258
0x934649f emit_conditional_move_1
/vol/gcc/src/hg/master/local/gcc/optabs.cc:5229
0x934689c emit_conditional_move(rtx_def*, rtx_comparison, rtx_def*, rtx_def*,
machine_mode, int)
/vol/gcc/src/hg/master/local/gcc/optabs.cc:5142
0xa888e0e noce_emit_cmove
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:1773
0xa88f017 try_emit_cmove_seq
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:3406
0xa88f017 noce_convert_multiple_sets_1
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:3687
0xa88f613 noce_convert_multiple_sets
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:3492
0xa89461a noce_process_if_block
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:4025
0xa89461a noce_find_if_block
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:4706
0xa89461a find_if_header
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:4911
0xa89461a if_convert
/vol/gcc/src/hg/master/local/gcc/ifcvt.cc:6058
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.
make: *** [Makefile:3055: time.lo] Error 1
It turned out that this patch
commit 72c9b5f438f22cca493b4e2a8a2a31ff61bf1477
Author: Manolis Tsamis <manolis.tsa...@vrull.eu>
Date: Fri Jun 30 14:05:15 2023 +0200
ifcvt: Allow more operations in multiple set if conversion
is the culprit.
