http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35288
--- Comment #2 from davidxl 2010-11-02 23:40:15
UTC ---
LLVM got it right:
addl%esi, %edi
leal(%rdx,%rdi,2), %eax
vs gcc:
addl%esi, %edx
leal(%rsi,%rdi,2), %edi
leal(%rdi,%rdx), %eax
vs open64:
--- Comment #1 from rguenth at gcc dot gnu dot org 2008-02-22 10:55 ---
Confirmed. Re-association generates
D.1548_3 = a1_4(D) + a1_4(D);
b1_5 = D.1548_3 + a2_2(D);
b2_6 = b1_5 + a2_2(D);
D.1549_7 = b2_6 + a3_1(D);
but that does not expose SSA_NAMEs with the same value.
--
