https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121091
Bug ID: 121091
Summary: ICE in tree_to_uhwi, at tree.cc:6660 with SVE switch
choosing predicate values
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: acoplan at gcc dot gnu.org
Target Milestone: ---
The following fails:
$ cat t.c
#pragma GCC aarch64 "arm_sve.h"
void e(__fp16 *p, __fp16 *out, int mode) {
svbool_t pg;
switch (mode) {
case 0:
pg = svptrue_pat_b16(SV_VL6);
break;
case 1:
pg = svpfalse_b();
break;
case 2:
pg = svptrue_pat_b16(SV_VL2);
break;
}
svfloat16_t x = svld1_f16(pg, p);
svst1_f16(pg, out, x);
}
$ ./xgcc -B . -c t.c -S -o /dev/null -O2 -march=armv8.2-a+sve
t.c:17:1: internal compiler error: in tree_to_uhwi, at tree.cc:6660
17 | }
| ^
0x3725cb5 internal_error(char const*, ...)
/fast/trunk/src/gcc/gcc/diagnostic-global-context.cc:517
0x36dec58 fancy_abort(char const*, int, char const*)
/fast/trunk/src/gcc/gcc/diagnostic.cc:1818
0x1ee8244 tree_to_uhwi(tree_node const*)
/fast/trunk/src/gcc/gcc/tree.cc:6660
0x1f83456 assemble_variable_contents
/fast/trunk/src/gcc/gcc/varasm.cc:2425
0x1f84132 assemble_variable(tree_node*, int, int, int)
/fast/trunk/src/gcc/gcc/varasm.cc:2619
0x1fa31fe varpool_node::assemble_decl()
/fast/trunk/src/gcc/gcc/varpool.cc:596
0x1fa3aa9 symbol_table::output_variables()
/fast/trunk/src/gcc/gcc/varpool.cc:764
0x129ac29 symbol_table::compile()
/fast/trunk/src/gcc/gcc/cgraphunit.cc:2421
0x129b0d1 symbol_table::finalize_compilation_unit()
/fast/trunk/src/gcc/gcc/cgraphunit.cc:2607
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.
