Re: [arm-gnu] arm-2008q3 Vectorizing support
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Re: [arm-gnu] arm-2008q3 Vectorizing support
- To: "Shilimkar, Santosh" <santosh.shilimkar@xxxxxx>
- Subject: Re: [arm-gnu] arm-2008q3 Vectorizing support
- From: Daniel Jacobowitz <dan@xxxxxxxxxxxxxxxx>
- Date: Tue, 18 Nov 2008 09:01:14 -0500
On Tue, Nov 18, 2008 at 07:20:48PM +0530, Shilimkar, Santosh wrote:
> The same C code built with codesourcery toolchain, don't generate the expected SIMD instructions. The flag I used for bulding this are
>
> arm-none-linux-gnueabi-gcc neon_vector_test.c -ftree-vectorize -march=armv7a -mfpu=neon -mfloat-abi=softfp -o neon_vector_test.out
You haven't turned on optimization. Try using -O2 -ftree-vectorize or
-O3.
--
Daniel Jacobowitz
CodeSourcery