Some GCC tests such as gcc.c-torture/execute/simd-5.c fail on
powerpc-none-eabispe with an ICE in final_scan_insn (not optimizing) or
reload_cse_simplify_operands (optimizing). This happens with trunk and 4.1
branch but not with 4.0 branch. Reduced testcase:
typedef short Q __attribute__((vector_size(8)));
Q a, b, c;
void
f (void)
{
c = a * b;
}
Non-optimizing:
t.c: In function 'f':
t.c:9: error: insn does not satisfy its constraints:
(insn 45 74 75 (set (reg:V4HI 0 0 [158])
(mem/u/c/i:V4HI (lo_sum:SI (reg:SI 10 10)
(symbol_ref/u:SI ("*.LC0") [flags 0x2])) [0 S8 A64])) 1059
{*movv4hi_internal} (nil)
(nil))
t.c:9: internal compiler error: in final_scan_insn, at final.c:2379
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
With -O:
t.c: In function 'f':
t.c:9: error: insn does not satisfy its constraints:
(insn 18 68 66 2 (set (reg:V4HI 0 0 [127])
(mem/u/c/i:V4HI (lo_sum:SI (reg:SI 6 6)
(symbol_ref/u:SI ("*.LC0") [flags 0x82])) [0 S8 A64])) 1059
{*movv4hi_internal} (nil)
(nil))
t.c:9: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:393
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: [4.1/4.2 Regression] ICEs in final_scan_insn and
reload_cse_simplify_operands for vectors with SPE
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jsm28 at gcc dot gnu dot org
GCC target triplet: powerpc*-*-*spe
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27566
