https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71499
--- Comment #1 from Joel Yliluoma <bisqwit at iki dot fi> ---
Addendum: While this works, reading LTO data and producing HOST code:
/usr/local/libexec/gcc/x86_64-pc-linux-gnu/6.1.0/lto1 -dumpbase tmpe.o -auxbase
tmpe -version -fopenacc tmpe.o -o /tmp/ccZgHvRO.s
This does not:
/usr/local/libexec/gcc/x86_64-pc-linux-gnu/6.1.0/accel/nvptx-none/lto1
-dumpbase tmpe.o -auxbase tmpe -version -fopenacc tmpe.o -o /tmp/ccZgHvRO.s
GNU GIMPLE (GCC) version 6.1.0 (nvptx-none)
compiled by GNU C version 6.1.0, GMP version 6.0.0, MPFR version 3.1.4,
MPC version 1.0.3, isl version 0.15
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU GIMPLE (GCC) version 6.1.0 (nvptx-none)
compiled by GNU C version 6.1.0, GMP version 6.0.0, MPFR version 3.1.4,
MPC version 1.0.3, isl version 0.15
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
options passed: -fopenacc tmpe.o
options enabled: -faggressive-loop-optimizations -fauto-inc-dec
-fchkp-check-incomplete-type -fchkp-check-read -fchkp-check-write
-fchkp-instrument-calls -fchkp-narrow-bounds -fchkp-optimize
-fchkp-store-bounds -fchkp-use-static-bounds
-fchkp-use-static-const-bounds -fchkp-use-wrappers -fcommon
-fdelete-null-pointer-checks -fearly-inlining
-feliminate-unused-debug-types -ffunction-cse -fgcse-lm -fgnu-runtime
-fgnu-unique -fident -finline-atomics -fipa-pta -fira-hoist-pressure
-fira-share-save-slots -fira-share-spill-slots -fivopts
-fkeep-static-consts -fleading-underscore -flifetime-dse
-flto-odr-type-merging -fmath-errno -fmerge-debug-strings -fpeephole -fplt
-fprefetch-loop-arrays -freg-struct-return -fsched-critical-path-heuristic
-fsched-dep-count-heuristic -fsched-group-heuristic -fsched-interblock
-fsched-last-insn-heuristic -fsched-rank-heuristic -fsched-spec
-fsched-spec-insn-heuristic -fsched-stalled-insns-dep -fschedule-fusion
-fsemantic-interposition -fshow-column -fsigned-zeros
-fsplit-ivs-in-unroller -fssa-backprop -fstdarg-opt
-fstrict-volatile-bitfields -fsync-libcalls -ftoplevel-reorder
-ftrapping-math -ftree-cselim -ftree-forwprop -ftree-loop-if-convert
-ftree-loop-im -ftree-loop-ivcanon -ftree-loop-optimize
-ftree-parallelize-loops= -ftree-phiprop -ftree-reassoc -ftree-scev-cprop
-funit-at-a-time -fvar-tracking-assignments -fzero-initialized-in-bss -m64
Reading object files: tmpe.o {GC start 776k}
Reading the callgraph
lto1: internal compiler error: in input_overwrite_node, at lto-cgraph.c:1203
0x7a73c5 input_overwrite_node
../../gcc/lto-cgraph.c:1201
0x7a73c5 input_node
../../gcc/lto-cgraph.c:1296
0x7a73c5 input_cgraph_1
../../gcc/lto-cgraph.c:1546
0x7a73c5 input_symtab()
../../gcc/lto-cgraph.c:1849
0x5537fb read_cgraph_and_symbols
../../gcc/lto/lto.c:2856
0x5537fb lto_main()
../../gcc/lto/lto.c:3304
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
I also tried using different combinations of --enable-languages=c,c++,lto ,
--enable-lto , including neither, but none affected the problem. I also tried
using the svn version of gcc, but it also exhibited the same problem.
The nvptx-newlib revision is aadc8eb0ec43b7cd0dd2dfb484bae63c8b05ef24 and
nvptx-tools revision is c28050f60193b3b95a18866a96f03334e874e78f.
