http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47000
--- Comment #23 from Jan Hubicka <hubicka at gcc dot gnu.org> 2010-12-19 11:58:35 UTC --- sha256_4way.c:287:78: warning: called from here sha256_4way.c:50:23: warning: inlining failed in call to ‘ROTR’: --param inline-unit-growth limit reached so you could also workaround with --param inline-unit-growth=<some sufficiently large number>. Otherwise H.J.'s proposed backport seems like most sane way to solve the problem. I guess it can be backported. I am testing Index: tree-inline.c =================================================================== --- tree-inline.c (revision 168047) +++ tree-inline.c (working copy) @@ -3281,6 +3281,7 @@ estimate_operator_cost (enum tree_code c CASE_CONVERT: case COMPLEX_EXPR: case PAREN_EXPR: + case VIEW_CONVERT_EXPR: return 0; /* Assign cost of 1 to usual operations. to solve the V_C_E problems.