https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67717
Bug ID: 67717
Summary: [6.0 regression] ICE when compiling WRF benchmark from
cpu2006 with -Ofast -march=bdver4
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: vekumar at gcc dot gnu.org
Target Milestone: ---
gfortran -c -o module_cu_gd.fppized.o -I. -I./netcdf/include -march=bdver4
-Ofast -fno-second-underscore module_cu_gd.fppized.f90
module_cu_gd.fppized.f90:1302:0:
(Snip)
END SUBROUTINE CUP_enss
^
Error: insn does not satisfy its constraints:
(insn 8179 8178 14983 589 (parallel [
(set (reg:V4SF 23 xmm2 [orig:2240 vect__1137.6099 ] [2240])
(unspec:V4SF [
(reg:V4SF 23 xmm2 [orig:2240 vect__1137.6099 ] [2240])
(mem:SF (unspec:DI [
(reg/f:DI 4 si [4841])
(reg:V2DI 21 xmm0 [orig:6879
vect__1136.6096 ] [6879])
(const_int 4 [0x4])
] UNSPEC_VSIBADDR) [0 S4 A8])
(mem:BLK (scratch) [0 A8])
(reg:V4SF 23 xmm2 [orig:2240 vect__1137.6099 ] [2240])
] UNSPEC_GATHER))
(clobber (reg:V4SF 23 xmm2 [orig:2240 vect__1137.6099 ] [2240]))
]) module_cu_gd.fppized.f90:1102 4603 {*avx2_gatherdiv4sf}
(nil))
module_cu_gd.fppized.f90:1302:0: internal compiler error: in
extract_constrain_insn, at recog.c:2200
0xaf0548 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../gcc-fsf-trunk/gcc/rtl-error.c:109
0xaf056f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../gcc-fsf-trunk/gcc/rtl-error.c:120
0xabe03d extract_constrain_insn(rtx_insn*)
../../gcc-fsf-trunk/gcc/recog.c:2200
0xa9e185 reload_cse_simplify_operands
../../gcc-fsf-trunk/gcc/postreload.c:408
0xa9f245 reload_cse_simplify
../../gcc-fsf-trunk/gcc/postreload.c:194
0xa9f245 reload_cse_regs_1
../../gcc-fsf-trunk/gcc/postreload.c:233
0xaa0b13 reload_cse_regs
../../gcc-fsf-trunk/gcc/postreload.c:81
0xaa0b13 execute
../../gcc-fsf-trunk/gcc/postreload.c:2350
Please submit a full bug report,
with preprocessed source if appropriate.
(Snip)
I am trying to get a reduced test case.
But the Bug seems to starts from r227382
commit 0af99ebfea26293fc900fe9050c5dd514005e4e5
2015-09-01 Vladimir Makarov <vmaka...@redhat.com>
PR target/61578
* lra-lives.c (process_bb_lives): Process move pseudos with the
same value for copies and preferences
* lra-constraints.c (match_reload): Create match reload pseudo
with the same value from single dying input pseudo.
