https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86158
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jamborm at gcc dot gnu.org
--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> ---
Got it, if I print pointer value of streamed trees I see:
BAD:
Creating output block for jmpfuncs
Encoding indexable <integer_type # int> as 0
Encoding indexable <pointer_type #> as 1
Encoding indexable <pointer_type #> as 2
Streaming SCC of <addr_expr #> (0x7ffff6af78a0)
Streaming <addr_expr #> to jmpfuncs
Streaming <string_cst #> to jmpfuncs
Encoding indexable <array_type #> as 3
Encoding indexable <pointer_type #> as 4
Existing SCC of <string_cst #> (0x7ffff6ade5c8)
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6af25a0)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6af25a0)
Streaming SCC of <addr_expr #> (0x7ffff6af7900)
Streaming <addr_expr #> to jmpfuncs
Encoding indexable <pointer_type #> as 5
Encoding indexable <function_decl # exit> as 0
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6af25b8)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6af25b8)
Streaming SCC of <addr_expr #> (0x7ffff6af7940)
Streaming <addr_expr #> to jmpfuncs
Encoding indexable <var_decl # M_var> as 0
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6ae1d20)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6ae1d20)
GOOD:
Creating output block for jmpfuncs
Encoding indexable <integer_type # int> as 0
Encoding indexable <pointer_type #> as 1
Encoding indexable <pointer_type #> as 2
Streaming SCC of <addr_expr #> (0x7ffff6af99c0)
Streaming <addr_expr #> to jmpfuncs
Streaming <string_cst #> to jmpfuncs
Encoding indexable <array_type #> as 3
Encoding indexable <pointer_type #> as 4
Existing SCC of <string_cst #> (0x7ffff6ade640)
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6af3690)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6af3690)
Streaming SCC of <addr_expr #> (0x7ffff6af9a20)
Streaming <addr_expr #> to jmpfuncs
Encoding indexable <pointer_type #> as 5
Encoding indexable <function_decl # exit> as 0
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6af36a8)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6af36a8)
Streaming SCC of <addr_expr #> (0x7ffff6af9a40)
Streaming <addr_expr #> to jmpfuncs
Encoding indexable <var_decl # M_var> as 0
Finished SCC of <addr_expr #>
Existing SCC of <integer_cst # 0> (0x7ffff6af3690)
Existing SCC of <integer_cst # 0> (0x7ffff6af3690)
So as seen, the integer_cst in GOOD version points to same tree
(0x7ffff6af3690),
while in the bad one, there are multiple integer constants.
Martin I thought there's some caching happening in IPA CP?
