https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64307
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Init called for 2 items (100.00%).
false returned: 'Unknown TREE code reached' (compare_operand:480)
false returned: 'memory operands are different' (compare_gimple_assign:785)
different statement for code: GIMPLE_ASSIGN (compare_bb:638):
_2 = REALPART_EXPR <a>;
_2 = REALPART_EXPR <a>;
false returned: '' (equals_private:537)
surely latent (the above is without -fPIC).
Index: gcc/ipa-icf-gimple.c
===================================================================
--- gcc/ipa-icf-gimple.c (revision 219520)
+++ gcc/ipa-icf-gimple.c (working copy)
@@ -448,6 +448,8 @@ func_checker::compare_operand (tree t1,
return return_with_debug (ret);
}
+ case IMAGPART_EXPR:
+ case REALPART_EXPR:
case ADDR_EXPR:
{
x1 = TREE_OPERAND (t1, 0);
makes them compare equal, but still no transform is done, even w/o -fPIC.
Note BIT_FIELD_REF handling is completely broken:
case BIT_FIELD_REF:
{
ret = compare_decl (t1, t2);
return return_with_debug (ret);
}
???
