[llvm-commits] [llvm] r81288 - /llvm/trunk/test/CodeGen/Thumb2/thumb2-cmp.ll

[Evan Cheng]

On Sep 8, 2009, at 4:44 PM, Chris Lattner wrote:

> Author: lattner
> Date: Tue Sep  8 18:44:53 2009
> New Revision: 81288
>
> URL: http://llvm.org/viewvc/llvm-project?rev=81288&view=rev
> Log:
> adjust for signedness change.  I'd appreciate it if an ARM flavored  
> person
> could look at this: the top undefined bits of an immediate shouldn't  
> affect
> isel (cmp vs cmp.w)
>
> Modified:
>    llvm/trunk/test/CodeGen/Thumb2/thumb2-cmp.ll
>
> Modified: llvm/trunk/test/CodeGen/Thumb2/thumb2-cmp.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/Thumb2/thumb2-cmp.ll?rev=81288&r1=81287&r2=81288&view=diff
>
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> ======================================================================
> --- llvm/trunk/test/CodeGen/Thumb2/thumb2-cmp.ll (original)
> +++ llvm/trunk/test/CodeGen/Thumb2/thumb2-cmp.ll Tue Sep  8 18:44:53  
> 2009
> @@ -19,7 +19,7 @@
> ; 0xcc00cc00 = 3422604288
> define i1 @f3(i32 %a) {
> ; CHECK: f3:
> -; CHECK: cmp.w r0, #3422604288
> +; CHECK: cmp r0, #-872363008

This is definitely breaking Thumb2. It now believes the cmp is a 16- 
bit instruction. I'll check what's going on.

Evan

>     %tmp = icmp ne i32 %a, 3422604288
>     ret i1 %tmp
> }
> @@ -27,7 +27,7 @@
> ; 0xdddddddd = 3722304989
> define i1 @f4(i32 %a) {
> ; CHECK: f4:
> -; CHECK: cmp.w r0, #3722304989
> +; CHECK: cmp r0, #-572662307
>     %tmp = icmp ne i32 %a, 3722304989
>     ret i1 %tmp
> }
>
>
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