------- Comment #2 from hjl dot tools at gmail dot com 2008-03-31 02:04 -------
useless_type_conversion_p returns true for
(gdb) call debug_tree (outer_type)
<vector_type 0x2aaaaac11240 unaligned
type <real_type 0x2aaaaab0a6c0 float asm_written SF
size <integer_cst 0x2aaaaaaeba80 constant invariant 32>
unit size <integer_cst 0x2aaaaaaeb6f0 constant invariant 4>
align 32 symtab -1430183552 alias set -1 canonical type 0x2aaaaab0a6c0
precision 32
pointer_to_this <pointer_type 0x2aaaaab0a900>>
sizes-gimplified V4SF
size <integer_cst 0x2aaaaaaebde0 type <integer_type 0x2aaaaaafb0c0
bit_size_type> constant invariant 128>
unit size <integer_cst 0x2aaaaaaebe10 type <integer_type 0x2aaaaaafb000
long unsigned int> constant invariant 16>
user align 8 symtab -1430183264 alias set -1 canonical type 0x2aaaaac11240
attributes <tree_list 0x2aaaaac108a0
purpose <identifier_node 0x2aaaaabe0f60 __may_alias__>> nunits 4>
(gdb) call debug_tree (inner_type)
<vector_type 0x2aaaaac110c0 __m128
type <real_type 0x2aaaaab0a6c0 float asm_written SF
size <integer_cst 0x2aaaaaaeba80 constant invariant 32>
unit size <integer_cst 0x2aaaaaaeb6f0 constant invariant 4>
align 32 symtab -1430183552 alias set -1 canonical type 0x2aaaaab0a6c0
precision 32
pointer_to_this <pointer_type 0x2aaaaab0a900>>
sizes-gimplified V4SF
size <integer_cst 0x2aaaaaaebde0 type <integer_type 0x2aaaaaafb0c0
bit_size_type> constant invariant 128>
unit size <integer_cst 0x2aaaaaaebe10 type <integer_type 0x2aaaaaafb000
long unsigned int> constant invariant 16>
align 128 symtab -1430183936 alias set -1 canonical type 0x2aaaaabab900
attributes <tree_list 0x2aaaaac108a0
purpose <identifier_node 0x2aaaaabe0f60 __may_alias__>> nunits 4
pointer_to_this <pointer_type 0x2aaaaac116c0>>
It isn't correct.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35771
