https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98638
Bug ID: 98638
Summary: ICE: Segmentation fault (in lookup_page_table_entry)
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: GC, ice-on-valid-code
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: powerpc-*-linux-gnu
Created attachment 49950
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49950&action=edit
Testcase
gfortran-11.0.0-alpha20210110 snapshot
(g:872373360dab259d51caa002ff1722ff84746d8b) ICEs when compiling the attached
testcase, only mildly reduced from test/f90_correct/src/oop324.f90 from the
flang test suite, w/ -mcpu=860 -O2 -fexceptions -fnon-call-exceptions -fopenacc
-fpredictive-commoning --param integer-share-limit=20000:
% powerpc-e300c3-linux-gnu-gfortran-11.0.0 -mcpu=860 -O2 -fexceptions
-fnon-call-exceptions -fopenacc -fpredictive-commoning --param
integer-share-limit=20000 -c qvft2ssg.f90
qvft2ssg.f90:18:20:
18 | end module shape_mod
| ^
internal compiler error: Segmentation fault
0xe8d916 crash_signal
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/gcc-11-20210110/gcc/toplev.c:327
0x97e833 lookup_page_table_entry
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/gcc-11-20210110/gcc/ggc-page.c:630
0x97e833 ggc_set_mark(void const*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/gcc-11-20210110/gcc/ggc-page.c:1544
0xbf92c1 gt_ggc_mx_basic_block_def(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1517
0xbfb707 gt_ggc_mx_gimple(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1287
0x8cd40f gt_ggc_mx_lang_tree_node(void*)
./gt-fortran-f95-lang.h:403
0x8cd4b0 gt_ggc_mx_lang_tree_node(void*)
./gt-fortran-f95-lang.h:394
0x8cd4b0 gt_ggc_mx_lang_tree_node(void*)
./gt-fortran-f95-lang.h:394
0x8ccfa9 gt_ggc_mx_lang_decl(void*)
./gtype-fortran.h:72
0x8ccfa9 gt_ggc_mx_lang_decl(void*)
./gtype-fortran.h:67
0x8cd3ab gt_ggc_mx_lang_tree_node(void*)
./gt-fortran-f95-lang.h:177
0x8cd39d gt_ggc_mx_lang_tree_node(void*)
./gt-fortran-f95-lang.h:176
0xbfb9ae gt_ggc_mx_gimple(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1268
0xbf9379 gt_ggc_mx_basic_block_def(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1537
0xbfb707 gt_ggc_mx_gimple(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1287
0xbfe261 gt_ggc_mx_cgraph_edge(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1403
0xbfe253 gt_ggc_mx_cgraph_edge(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1402
0xbfe253 gt_ggc_mx_cgraph_edge(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1402
0xbfe253 gt_ggc_mx_cgraph_edge(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1402
0xbfdfee gt_ggc_mx_symtab_node(void*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210110/work/build/gcc/gtype-desc.c:1349
