https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89224
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Priority|P3 |P2
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is likely that lvalue_kind of
<parm_decl 0x7ffff7ff3180 x
type <vector_type 0x7ffff6684bd0 __Int8x8_t
type <integer_type 0x7ffff653b348 unsigned char public unsigned QI
size <integer_cst 0x7ffff653d090 constant 8>
unit-size <integer_cst 0x7ffff653d0a8 constant 1>
align:8 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7ffff653b348 precision:8 min <integer_cst 0x7ffff653d0c0 0> max <integer_cst
0x7ffff653d060 255>>
readonly unsigned V16QI
size <integer_cst 0x7ffff6517fd8 constant 128>
unit-size <integer_cst 0x7ffff653d000 constant 16>
align:128 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7ffff6684c78 nunits:16>
readonly used unsigned V16QI t.ii:7:25 size <integer_cst 0x7ffff6517fd8
128> unit-size <integer_cst 0x7ffff653d000 16>
align:128 warn_if_not_align:0 context <function_decl 0x7ffff6687a00 f>
arg-type <vector_type 0x7ffff6684bd0 __Int8x8_t>>
returns clk_ordinary and thus convert_vector_to_array_for_subscript returns
false.
And that's because
214 case PARM_DECL:
215 case RESULT_DECL:
216 case PLACEHOLDER_EXPR:
217 return clk_ordinary;
we wrap the PARM_DECL in a VIEW_CONVERT_EXPR but that just gets stripped
here.
So maybe convert_vector_to_array_for_subscript is wrong in just using
lvalue_p?
I've went here just tracing cp_build_array_ref, otherwise I know nothing
about C++ or how the c-c++-common lvalue_p should behave here.
