http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56175
--- Comment #11 from Yuri Rumyantsev <ysrumyan at gmail dot com> 2013-02-14 12:03:37 UTC --- I did measurements of 3 possible fixes: 1. Comment out 2 patterns related to type sinking. 2. Comment out 1st pattern only. 3. Prohibit type sinking if source type (of def_arg1) is short type. Measuremnets were done on eembc 2.0 suite at base optset and they showed that the 3rd fix is more profitable for x86 in 32-bit mode. Since I hear nothing from the code owner I assume that we will add new target hook returning true/false for type sinkning in the both patterns that will anaylze the source type and likely destination type of operand. Richard, what is your opinion?
