[llvm-commits] [LLVMdev] [PATCH] BasicBlock Autovectorization Pass

[James Molloy]

Hi Duncan,

> this would make LLVM's IR optimizers slower than GCC's tree optimizers
> according to my benchmarking of their relative speeds.

Purely OOI, by how much, roughly?

Cheers,

James

-----Original Message-----
From: llvm-commits-bounces at cs.uiuc.edu
[mailto:llvm-commits-bounces at cs.uiuc.edu] On Behalf Of Duncan Sands
Sent: 01 December 2011 08:27
To: llvm-commits at cs.uiuc.edu
Subject: Re: [llvm-commits] [LLVMdev] [PATCH] BasicBlock Autovectorization
Pass

Hi Hal,

> Over the entire test suite:
>
> default vs. -vectorize:
>
> The mean compile-time slowdown was 23%,

this would make LLVM's IR optimizers slower than GCC's tree optimizers
according to my benchmarking of their relative speeds.

Ciao, Duncan.
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