[Bug tree-optimization/18316] Missed IV optimization

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2005-01-23 
14:37 -------
Bravo Zdenek!!! 
 
 
        .text 
        .p2align 4,,15 
.globl strength_test2 
        .type   strength_test2, @function 
strength_test2: 
.LFB2: 
        movl    (%rdi), %r8d 
        leaq    8(%rdi), %rsi 
        leaq    4(%rdi), %rcx 
        xorl    %edx, %edx 
        .p2align 4,,7 
.L2: 
        movslq  (%rsi),%rax 
        addl    %r8d, %edx 
        movl    $2, (%rdi,%rax,4) 
        cmpl    (%rcx), %edx 
        jl      .L2 
        rep ; ret 
.LFE2: 
        .size   strength_test2, .-strength_test2 
        .p2align 4,,15 
.globl strength_result2 
        .type   strength_result2, @function 
strength_result2: 
.LFB3: 
        movl    (%rdi), %r8d 
        leaq    8(%rdi), %rsi 
        leaq    4(%rdi), %rcx 
        xorl    %edx, %edx 
        .p2align 4,,7 
.L9: 
        movslq  (%rsi),%rax 
        addl    %r8d, %edx 
        movl    $2, (%rdi,%rax,4) 
        cmpl    (%rcx), %edx 
        jl      .L9 
        rep ; ret 
.LFE3: 
        .size   strength_result2, .-strength_result2 
 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316