https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79915
Bug ID: 79915
Summary: ICE in final_scan_insn, at final.c:2982 on mips with
-mlong-calls
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: jan.smets at nokia dot com
Target Milestone: ---
During compilation of libstdc++-v3 with -mlong-calls
Occurs on mips O32, N32, 64.
In both GCC5 and 6.
Target I used is a modified mips-wrs-vxworks target with added long-calls
multilibs.
(the prototype for write() is
libtool: compile: /jasmets/git/tools/toolchains/gcc6/gcc-builddir/./gcc/xgcc
-shared-libgcc -B/jasmets/git/tools/toolchains/gcc6/gcc-builddir/./gcc
-nostdinc++ -L/jasm
ets/git/tools/toolchains/gcc6/gcc-builddir/mips-wrs-vxworks/64/64-long/libstdc++-v3/src
-L/jasmets/git/tools/toolchains/gcc6/gcc-builddir/mips-wrs-vxworks/64/64-long/li
bstdc++-v3/src/.libs
-L/jasmets/git/tools/toolchains/gcc6/gcc-builddir/mips-wrs-vxworks/64/64-long/libstdc++-v3/libsupc++/.libs
-B/jasmets/git/tools/toolchains/gcc6/pre
fix/mips-wrs-vxworks/bin/
-B/jasmets/git/tools/toolchains/gcc6/prefix/mips-wrs-vxworks/lib/ -isystem
/jasmets/git/tools/toolchains/gcc6/prefix/mips-wrs-vxworks/include
-isystem /jasmets/git/tools/toolchains/gcc6/prefix/mips-wrs-vxworks/sys-include
-mabi=64 -mlong-calls
-I/jasmets/git/tools/toolchains/gcc6/gcc-builddir/gcc-6.3.1/libstd
c++-v3/../libgcc
-I/jasmets/git/tools/toolchains/gcc6/gcc-builddir/mips-wrs-vxworks/64/64-long/libstdc++-v3/include/mips-wrs-vxworks
-I/jasmets/git/tools/toolchains/gcc
6/gcc-builddir/mips-wrs-vxworks/64/64-long/libstdc++-v3/include
-I/jasmets/git/tools/toolchains/gcc6/gcc-builddir/gcc-6.3.1/libstdc++-v3/libsupc++
-std=gnu++98 -fno-imp
licit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections
-frandom-seed=c++locale.lo -O2 -fno
-optimize-sibling-calls -fno-partial-inlining -fasynchronous-unwind-tables
-mabi=64 -mlong-calls -fimplicit-templates -c c++locale.cc -o c++locale.o
../../../../../.././gcc-6.3.1/libstdc++-v3/src/c++98/strstream.cc: In member
function 'virtual void std::istrstream::_ZTv0_n24_NSt10istrstreamD1Ev()':
../../../../../.././gcc-6.3.1/libstdc++-v3/src/c++98/strstream.cc:417:1: error:
could not split insn
} // namespace
^
(insn 5 4 6 (set (reg:DI 2 $2)
(high:DI (symbol_ref:DI ("*$LTHUNK0") [flags 0x203] <function_decl
0x7f7074ebd2a0 *$LTHUNK0>)))
/jasmets/git/tools/toolchains/gcc6/gcc-builddir/mips-wrs-vxworks
/64/64-long/libstdc++-v3/include/backward/strstream:131 286 {*lea_high64}
(nil))
../../../../../.././gcc-6.3.1/libstdc++-v3/src/c++98/strstream.cc:417:1:
internal compiler error: in final_scan_insn, at final.c:2982
0xa26ac3 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
.././gcc-6.3.1/gcc/rtl-error.c:108
0x7f3b2b final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
.././gcc-6.3.1/gcc/final.c:2982
0x7f3d9f final(rtx_insn*, _IO_FILE*, int)
.././gcc-6.3.1/gcc/final.c:2045
0xd045ca mips_output_mi_thunk
.././gcc-6.3.1/gcc/config/mips/mips.c:17514
0x721604 cgraph_node::expand_thunk(bool, bool)
.././gcc-6.3.1/gcc/cgraphunit.c:1647
0x722072 cgraph_node::assemble_thunks_and_aliases()
.././gcc-6.3.1/gcc/cgraphunit.c:1923
0x7220d7 cgraph_node::assemble_thunks_and_aliases()
.././gcc-6.3.1/gcc/cgraphunit.c:1941
0x722630 cgraph_node::expand()
.././gcc-6.3.1/gcc/cgraphunit.c:2053
0x723bb3 expand_all_functions
.././gcc-6.3.1/gcc/cgraphunit.c:2126
0x723bb3 symbol_table::compile()
.././gcc-6.3.1/gcc/cgraphunit.c:2482
0x72532f symbol_table::finalize_compilation_unit()
.././gcc-6.3.1/gcc/cgraphunit.c:2572
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