https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78362
Bug ID: 78362
Summary: [7 Regression] ICE: RTL check: expected code 'reg',
have 'subreg' in rhs_regno, at rtl.h:1804 during
libgomp build
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: aarch64-unknown-linux-gnu
Build: x86_64-pc-linux-gnu
Created attachment 40046
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40046&action=edit
reduced testcase
Compiler output:
$
/repo/build-trunk-242408-checking-yes-rtl-df-extra-nographite-aarch64/./gcc/cc1
-quiet -O testcase.c
testcase.c: In function 'foo':
testcase.c:4:1: internal compiler error: RTL check: expected code 'reg', have
'subreg' in rhs_regno, at rtl.h:1804
foo (void)
^~~
0xb3e687 rtl_check_failed_code1(rtx_def const*, rtx_code, char const*, int,
char const*)
/repo/gcc-trunk/gcc/rtl.c:811
0x1057c4d rhs_regno
/repo/gcc-trunk/gcc/rtl.h:1804
0x10b368a rhs_regno
/repo/gcc-trunk/gcc/config/aarch64/aarch64.md:1632
0x10b368a gen_addsi3(rtx_def*, rtx_def*, rtx_def*)
/repo/gcc-trunk/gcc/config/aarch64/aarch64.md:1613
0xa9c2ea expand_binop_directly
/repo/gcc-trunk/gcc/optabs.c:1071
0xa9a0d7 expand_binop(machine_mode, optab_tag, rtx_def*, rtx_def*, rtx_def*,
int, optab_methods)
/repo/gcc-trunk/gcc/optabs.c:1151
0x844238 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/repo/gcc-trunk/gcc/expr.c:9515
0x82dc99 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/repo/gcc-trunk/gcc/expr.c:11050
0x83bdee expand_expr
/repo/gcc-trunk/gcc/expr.h:276
0x83bdee expand_operands(tree_node*, tree_node*, rtx_def*, rtx_def**,
rtx_def**, expand_modifier)
/repo/gcc-trunk/gcc/expr.c:7684
0x844379 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/repo/gcc-trunk/gcc/expr.c:8526
0x82dc99 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/repo/gcc-trunk/gcc/expr.c:11050
0x846f22 expand_expr
/repo/gcc-trunk/gcc/expr.h:276
0x846f22 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/repo/gcc-trunk/gcc/expr.c:8303
0x82dc99 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/repo/gcc-trunk/gcc/expr.c:11050
0xd208a2 expand_expr
/repo/gcc-trunk/gcc/expr.h:276
0xd208a2 computation_cost
/repo/gcc-trunk/gcc/tree-ssa-loop-ivopts.c:3639
0xd2ed72 get_computation_cost_at
/repo/gcc-trunk/gcc/tree-ssa-loop-ivopts.c:5064
0xd33ff7 get_computation_cost
/repo/gcc-trunk/gcc/tree-ssa-loop-ivopts.c:5084
0xd33ff7 determine_group_iv_cost_cond
/repo/gcc-trunk/gcc/tree-ssa-loop-ivopts.c:5631
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$
/repo/build-trunk-242408-checking-yes-rtl-df-extra-nographite-aarch64/./gcc/xgcc
-v
Using built-in specs.
COLLECT_GCC=/repo/build-trunk-242408-checking-yes-rtl-df-extra-nographite-aarch64/./gcc/xgcc
Target: aarch64-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--without-cloog --without-ppl --without-isl
--with-sysroot=/usr/aarch64-unknown-linux-gnu
--target=aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu
--with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld
--with-as=/usr/bin/aarch64-unknown-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-242408-checking-yes-rtl-df-extra-nographite-aarch64
Thread model: posix
gcc version 7.0.0 20161115 (experimental) (GCC)
I am failing to build the aarch64 crosscompiler with RTL checking enabled due
to this.
