[Bug target/83524] New: [8 Regression] bootstrap fails build a nvptx cross: ICE in get_insn_template, at final.c:2099

[doko at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83524

            Bug ID: 83524
           Summary: [8 Regression] bootstrap fails build a nvptx cross:
                    ICE in get_insn_template, at final.c:2099
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

seen with trunk 20171221, r255910

libtool: compile:  /<<PKGBUILDDIR>>/build-nvptx/./gcc/xgcc
-B/<<PKGBUILDDIR>>/build-nvptx/./
gcc/ -nostdinc -B/<<PKGBUILDDIR>>/build-nvptx/nvptx-none/newlib/ -isystem
/<<PKGBUILDDIR>>/build-nvptx/nvptx-none/
newlib/targ-include -isystem /<<PKGBUILDDIR>>/src/newlib/libc/include
-B/usr/nvptx-none/bin/ -B/usr/nvptx-none/lib
/ -isystem /usr/nvptx-none/include -isystem /usr/nvptx-none/sys-include
-isystem /<<PKGBUILDDIR>>/build-nvptx/sys-
include -DHAVE_CONFIG_H -I. -I../../../../src/libgomp
-I../../../../src/libgomp/config/nvptx -I../../../../src/lib
gomp -I../../../../src/libgomp/../include -Wall -Werror -g -O2 -mgomp -MT
task.lo -MD -MP -MF .deps/task.Tpo -c ..
/../../../src/libgomp/config/nvptx/task.c -o task.o

during RTL pass: final
In file included from ../../../../src/libgomp/config/nvptx/task.c:41:
../../../../src/libgomp/config/nvptx/../../task.c: In function
'gomp_create_target_task':
../../../../src/libgomp/config/nvptx/../../task.c:778:1: internal compiler
error: in get_insn_template, at final.c:2099
 }
 ^
0x825997 get_insn_template(int, rtx_def*)
        ../../src/gcc/final.c:2099
0x82781d final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
        ../../src/gcc/final.c:3028
0x827ce4 final(rtx_insn*, _IO_FILE*, int)
        ../../src/gcc/final.c:2064
0x82841f rest_of_handle_final
        ../../src/gcc/final.c:4550
0x82841f execute
        ../../src/gcc/final.c:4624
Please submit a full bug report,
with preprocessed source if appropriate.

the offload compiler configured with

configure --prefix=/usr --libexecdir=/usr/lib --with-gcc-major-version-only
--disable-bootstrap --disa
ble-sjlj-exceptions --enable-newlib-io-long-long --target nvptx-none
--enable-as-accelerator-for=x86_64-linux-gnu 
--enable-languages=c,c++,fortran,lto --enable-checking=release
--with-system-zlib --without-isl --program-prefix=n
vptx-none- --program-suffix=-8