[LLVMdev] 32bit math being promoted to 64 bit

[Tilmann Scheller]

On Thu, Dec 4, 2008 at 7:08 PM, Chris Lattner <clattner at apple.com> wrote:
>
> On Dec 4, 2008, at 8:58 AM, Villmow, Micah wrote:
>
> What optimization pass promotes 32 bit math operations to 64 bit operations
> so I can disable it? I have code that works fine with optimizations turned
> off but fails with it turned on because of this stage.
>
>
> Do you have a testcase?  An .ll file with no 64-bit operations, and one
> optimization pass that introduces them?

Sounds a lot like the issue I reported in PR 3101.

Can you run your bitcode through opt -instcombine and check for promotions?

Greetings,

Tilmann