https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100369
Alex Coplan <acoplan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail| |12.0
CC| |acoplan at gcc dot gnu.org
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Keywords| |error-recovery
Last reconfirmed| |2021-05-18
--- Comment #3 from Alex Coplan <acoplan at gcc dot gnu.org> ---
Confirmed. Here is a reduced testcase:
$ cat neon.c
#include <arm_neon.h>
int64x2_t v;
void f() { vgetq_lane_s64(v, 2); }
$ ./arm-eabi-gcc -c neon.c -march=armv8-a+simd
In file included from neon.c:1:
In function 'vgetq_lane_s64',
inlined from 'f' at neon.c:3:12:
/home/alecop01/toolchain/build-arm-eabi-armv8.1-m.main+mve.fp+fp.dp/install/lib/gcc/arm-eabi/12.0.0/include/arm_neon.h:6313:10:
error: lane 2 out of range 0 - 1
6313 | return (int64_t)__builtin_neon_vget_lanev2di (__a, __b);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
during RTL pass: expand
/home/alecop01/toolchain/build-arm-eabi-armv8.1-m.main+mve.fp+fp.dp/install/lib/gcc/arm-eabi/12.0.0/include/arm_neon.h:
In function 'f':
/home/alecop01/toolchain/build-arm-eabi-armv8.1-m.main+mve.fp+fp.dp/install/lib/gcc/arm-eabi/12.0.0/include/arm_neon.h:6313:10:
internal compiler error: in gen_neon_vget_lanev2di, at config/arm/neon.md:3288
0x15f54df gen_neon_vget_lanev2di(rtx_def*, rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/config/arm/neon.md:3288
0x120c3e0 rtx_insn* insn_gen_fn::operator()<rtx_def*, rtx_def*,
rtx_def*>(rtx_def*, rtx_def*, rtx_def*) const
/home/alecop01/toolchain/src/gcc/gcc/recog.h:407
0x120c3e0 arm_expand_builtin_args
/home/alecop01/toolchain/src/gcc/gcc/config/arm/arm-builtins.c:3160
0x120c3e0 arm_expand_builtin_1
/home/alecop01/toolchain/src/gcc/gcc/config/arm/arm-builtins.c:3309
0x120d082 arm_expand_neon_builtin
/home/alecop01/toolchain/src/gcc/gcc/config/arm/arm-builtins.c:3389
0x120d082 arm_expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
/home/alecop01/toolchain/src/gcc/gcc/config/arm/arm-builtins.c:3469
0x7ca04f expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
/home/alecop01/toolchain/src/gcc/gcc/builtins.c:9753
0x94984d expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:11405
0x94ad22 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:8621
0x9538c7 store_expr(tree_node*, rtx_def*, int, bool, bool)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:5986
0x95554a expand_assignment(tree_node*, tree_node*, bool)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:5721
0x80123b expand_call_stmt
/home/alecop01/toolchain/src/gcc/gcc/cfgexpand.c:2841
0x80123b expand_gimple_stmt_1
/home/alecop01/toolchain/src/gcc/gcc/cfgexpand.c:3847
0x80123b expand_gimple_stmt
/home/alecop01/toolchain/src/gcc/gcc/cfgexpand.c:4011
0x80a339 expand_gimple_basic_block
/home/alecop01/toolchain/src/gcc/gcc/cfgexpand.c:6053
0x80b546 execute
/home/alecop01/toolchain/src/gcc/gcc/cfgexpand.c:6737
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Here is a preprocessed testcase for testing with a cc1 (but not for the
testsuite):
typedef __simd128_int64_t int64x2_t;
int64x2_t v;
void f() { __builtin_neon_vget_lanev2di(v, 2); }
