https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63166
Bug ID: 63166
Summary: [5 Regression] ICE (LTO):
ipa_intraprocedural_devirtualization, at
ipa-prop.c:2611
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
CC: hubicka at gcc dot gnu.org
Created attachment 33447
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33447&action=edit
Test file "one2.ii"
For the big program, it is surely a regression and the code is (should be)
valid. I am less sure about the reduced test case.
Reproduce:
$ g++ -flto -w -O2 -c one2.ii two.ii
$ .../libexec/gcc/x86_64-unknown-linux-gnu/5.0.0/lto1 -quiet -o /dev/null
one2.o two.o -O2
two.ii: In function ‘validate’:
two.ii:85:1: internal compiler error: in ipa_intraprocedural_devirtualization,
at ipa-prop.c:2611
validate ()
^
0x82ba7d ipa_intraprocedural_devirtualization(gimple_statement_base*)
../../gcc/ipa-prop.c:2611
0xb0b28b eliminate_dom_walker::before_dom_children(basic_block_def*)
../../gcc/tree-ssa-pre.c:4323
0xecdc47 dom_walker::walk(basic_block_def*)
../../gcc/domwalk.c:177
