https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111497
Bug ID: 111497
Summary: [11/12/13/14 Regression] ICE building mariadb on i686
since r8-470
Product: gcc
Version: 13.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
Target Milestone: ---
The following testcase ICEs on x86_64-linux with
-m32 -march=i686 -mtune=generic -fPIC -O2 -g
starting with r8-470-g973dfbb4a63ba7c580e4
The error is:
during RTL pass: pro_and_epilogue
item.ii: In constructor ‘G::G(A*, const B&, const B&, const B&)’:
item.ii:19:1: internal compiler error: in find_oldest_value_reg, at
regcprop.cc:465
19 | }
| ^
0x10304d0 find_oldest_value_reg
../../gcc/regcprop.cc:465
0x10307eb replace_oldest_value_reg
../../gcc/regcprop.cc:512
0x1030fe0 replace_oldest_value_addr
../../gcc/regcprop.cc:671
0x10311c3 replace_oldest_value_mem
../../gcc/regcprop.cc:704
and it is apparently due to LRA leaving a reference to a pseudo register in a
DEBUG_INSN:
(debug_insn 28 27 29 2 (var_location:SI x (mem/f:SI (reg:SI 110) [1
*y_10(D).b1+0 S4 A32])) "item.ii":4:39 -1
(nil))
in *.reload dump and forward.
Vlad, could you please have a look?
