[Bug middle-end/101018] ICE when enabling OpenMP on a simple loop with SVE intrinsics (aarch64)

[acoplan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101018

Alex Coplan <acoplan at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
           Keywords|                            |ice-on-valid-code
          Component|c                           |middle-end
             Target|                            |aarch64
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2021-06-10
                 CC|                            |acoplan at gcc dot gnu.org,
                   |                            |rsandifo at gcc dot gnu.org
      Known to fail|                            |10.3.0, 11.1.0, 12.0

--- Comment #1 from Alex Coplan <acoplan at gcc dot gnu.org> ---
Confirmed on trunk. ICEs with simply:

$ cat test.c
#include <arm_sve.h>
void f() {
  svfloat64_t x;
#pragma omp parallel
  x;
}
$ aarch64-linux-gnu-gcc -c -march=armv8.2-a+sve -fopenmp test.c
test.c: In function ‘f’:
test.c:5:3: internal compiler error: Segmentation fault
    5 |   x;
      |   ^
0xe089b3 crash_signal
        /home/alecop01/toolchain/src/gcc/gcc/toplev.c:327
0xad6abc omp_add_variable
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:7028
0xad7f55 omp_notice_variable
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:7622
0xad84ee gimplify_var_or_parm_decl
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:2851
0xadd82b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:14540
0xae15aa gimplify_stmt(tree_node**, gimple**)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:6863
0xae1dae gimplify_bind_expr
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:1424
0xadc932 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:14280
0xae15aa gimplify_stmt(tree_node**, gimple**)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:6863
0xae3f6a gimplify_and_add(tree_node*, gimple**)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:492
0xae3f6a gimplify_and_return_first
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:504
0xb08ed9 gimplify_omp_parallel
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:11428
0xadd8c3 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:14568
0xae15aa gimplify_stmt(tree_node**, gimple**)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:6863
0xadd753 gimplify_statement_list
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:1885
0xadd753 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:14524
0xae15aa gimplify_stmt(tree_node**, gimple**)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:6863
0xae1dae gimplify_bind_expr
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:1424
0xadc932 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:14280
0xae15aa gimplify_stmt(tree_node**, gimple**)
        /home/alecop01/toolchain/src/gcc/gcc/gimplify.c:6863
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.