https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96163
Bug ID: 96163
Summary: another ice in pass slp
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 48862
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48862&action=edit
C++ source code
For the attached C++ source code with flag -O3, recent gcc trunk does this:
/home/dcb/gcc/results.20200630/bin/g++
/home/dcb/gcc/results.20200701/bin/g++
bug630.cc: In function ‘void cm()’:
bug630.cc:139:6: error: definition in block 2 follows the use
139 | void cm() {
| ^~
for SSA_NAME: vect_cst__16 in statement:
vect__2.37_17 = _14 / vect_cst__16;
during GIMPLE pass: slp
bug630.cc:139:6: internal compiler error: verify_ssa failed
0x13fb41b verify_ssa(bool, bool)
../../trunk.git/gcc/tree-ssa.c:1208
0x108dbf5 execute_function_todo
../../trunk.git/gcc/passes.c:1992
Trunk dated 20200630 is fine, 20200701 not.
