https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65302
Bug ID: 65302
Summary: [5 Regression] LTO: ICE internal compiler error:
verify_flow_info failed
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 34938
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34938&action=edit
one.ii
Follow up to PR65276. The following code fails with an ICE. The ICE is gone if
one removes the "-O0" from the LTO stage:
g++ -c -flto -O2 one.ii two.ii
gcc -r -nostdlib -O0 one.o two.o
fails with
one.ii: In member function ‘Init’:
one.ii:93:6: error: BB 5 can not throw but has an EH edge
void ZRubberBand2P::Init () {
^
one.ii:93:6: internal compiler error: verify_flow_info failed
0x690a8b verify_flow_info()
../../gcc/cfghooks.c:280
Both PR65276 and this PR are for the same big code; I fear that neither the
fixed PR65276 nor this PR are fully representative for the big code as the
latter should be compiled with some "-O" while the two PRs involve -O0. Thus,
expect another follow-up PR once this PR is fixed. The compilation of the big
program fails with an ICE in add_symbol_to_partition_1, at
lto/lto-partition.c:158.
