http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59726
Bug ID: 59726
Summary: [4.9 Regression AArch64_be] r206148 (PR
tree-optimization/59544) causes ICE at -O3
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: christophe.lyon at st dot com
Commit 206148 (PR tree-optimization/59544) causes regressions on AArch64 BE
target (aarch64_be-none-elf) in testcases:
gcc.c-torture/compile/20000629-1.c
gcc.c-torture/compile/20080812-1.c
gcc.c-torture/execute/loop-11.c
gcc.c-torture/execute/loop-2c.c
gcc.c-torture/execute/loop-2d.c
gcc.c-torture/unsorted/sound.c
when compiled with
-O3 -fomit-frame-pointer
-O3 -fomit-frame-pointer -funroll-all-loops -finline-functions
-O3 -fomit-frame-pointer -funroll-loops
-O3 -g
For instance:
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/testsuite/gcc.c-torture/compile/20000629-1.c:
In function 'bar':
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/testsuite/gcc.c-torture/compile/20000629-1.c:25:12:
internal compiler error: in aarch64_expand_vec_perm, at
config/aarch64/aarch64.c:7744
0xde31af aarch64_expand_vec_perm(rtx_def*, rtx_def*, rtx_def*, rtx_def*)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/config/aarch64/aarch64.c:7744
0xe2cb03 gen_vec_permv16qi(rtx_def*, rtx_def*, rtx_def*, rtx_def*)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/config/aarch64/aarch64-simd.md:3846
0x9ef830 insn_gen_fn::operator()(rtx_def*, rtx_def*, rtx_def*, rtx_def*) const
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/recog.h:286
0x9dbe02 maybe_gen_insn(insn_code, unsigned int, expand_operand*)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/optabs.c:8263
0x9dc1cc maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/optabs.c:8293
0x9df85f expand_vec_perm_1
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/optabs.c:6568
0x9ef2bb expand_vec_perm(machine_mode, rtx_def*, rtx_def*, rtx_def*, rtx_def*)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/optabs.c:6701
0x7c9d27 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/expr.c:9097
0x7be918 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/expr.c:10575
0x7be9ea expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/expr.c:7930
0x7b921d expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/expr.c:9381
0x7be9ea expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/expr.c:7930
0x7c33c9 store_expr(tree_node*, rtx_def*, int, bool)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/expr.c:5328
0x7b5cfb expand_assignment(tree_node*, tree_node*, bool)
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/expr.c:5114
0x6c44a6 expand_gimple_stmt_1
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/cfgexpand.c:3210
0x6c48cc expand_gimple_stmt
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/cfgexpand.c:3306
0x6c5bac expand_gimple_basic_block
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/cfgexpand.c:5146
0x6c6b25 gimple_expand_cfg
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/cfgexpand.c:5712
0x6c7156 execute
/aci-gcc-fsf/sources/gcc-fsf/trunk/gcc/cfgexpand.c:5932
