https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110537
Bug ID: 110537
Summary: ICE for OpenMP loop with SVE (aarch64) intrinsics
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pgodbole at nvidia dot com
Target Milestone: ---
Created attachment 55465
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55465&action=edit
OpenMP code with SVE intrinsics
We are observing a crash with GCC 14 when compiling an OpenMP loop that uses
SVE intrinsics (see attached source code).
Command:
gcc -mcpu=neoverse-v2 -fopenmp crash_sve_bug.c -w
Results in:
crash_sve_bug.c: In function _HPL_dlaswp06T_:
crash_sve_bug.c:82:33: internal compiler error: Segmentation fault
82 | svfloat64_t __a0_sve = svld1_f64(pg, a0 + 0 * LDA);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0xef64df crash_signal
/home/latest_trunk/git/gcc/gcc/toplev.cc:314
0xb7570c omp_add_variable
/home/latest_trunk/git/gcc/gcc/gimplify.cc:7411
0xb7570c omp_add_variable
/home/latest_trunk/git/gcc/gcc/gimplify.cc:7352
0xb765db omp_notice_variable
/home/latest_trunk/git/gcc/gcc/gimplify.cc:8026
0xb761ff omp_notice_variable
/home/latest_trunk/git/gcc/gcc/gimplify.cc:8095
0xb7a577 gimplify_var_or_parm_decl
/home/latest_trunk/git/gcc/gcc/gimplify.cc:3063
0xb826eb gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:16902
0xb89fbb gimplify_expr
/home/latest_trunk/git/gcc/gcc/gimplify.cc:17505
0xb89fbb gimplify_arg(tree_node**, gimple**, unsigned int, bool)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:3523
0xb8f4e7 gimplify_call_expr
/home/latest_trunk/git/gcc/gcc/gimplify.cc:3808
0xb82c57 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:16413
0xb93333 gimplify_modify_expr
/home/latest_trunk/git/gcc/gcc/gimplify.cc:6173
0xb82983 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:16441
0xb86c4b gimplify_stmt(tree_node**, gimple**)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:7246
0xb8b3e3 gimplify_and_add(tree_node*, gimple**)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:492
0xb8b3e3 gimplify_decl_expr
/home/latest_trunk/git/gcc/gcc/gimplify.cc:1936
0xb82fc3 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:16638
0xb86c4b gimplify_stmt(tree_node**, gimple**)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:7246
0xb83a3f gimplify_statement_list
/home/latest_trunk/git/gcc/gcc/gimplify.cc:2019
0xb83a3f gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/latest_trunk/git/gcc/gcc/gimplify.cc:16886
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
The same ICE is observed on GCC 12.3 and 13.1. It compiles successfully without
-fopenmp
Thanks,
Prachi
