[Bug rtl-optimization/36758] [4.4/4.5/4.6 Regression] addition moved out of the loop when used with an argument

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36758

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.7.0
            Summary|[4.4/4.5/4.6/4.7            |[4.4/4.5/4.6 Regression]
                   |Regression] addition moved  |addition moved out of the
                   |out of the loop when used   |loop when used with an
                   |with an argument            |argument
      Known to fail|                            |

--- Comment #25 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-13 
10:56:46 UTC ---
I get, on trunk,

.L2:
        addi 3,1,8
        bl f0
        cmpwi 7,3,0
        bne+ 7,.L2

for ppc and

.L2:
        leaq    12(%rsp), %rdi
        call    f0
        testl   %eax, %eax
        jne     .L2

on x86_64.  Thus, fixed on trunk (at least).