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Enabling SSE with Release build Configuration
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Enabling SSE with Release build Configuration


  • Subject: Enabling SSE with Release build Configuration
  • From: Ries Brad <email@hidden>
  • Date: Fri, 1 Sep 2006 15:48:34 -0600

I am trying to compile a project containing SSE intrinsics on a MacPro using Xcode 2.4. It compiles fine using the Debug Build Configuration but fails with the Release settings. With the default Release Build Config settings it cannot find the SSE headers <xmmintrin.h>, <pmmintrin.h>, <emmintrin.h>. After manually entering the path into the Header Search Paths, Xcode complains that:

# error "SSE instructions not enabled"

in line 35 of xmmintrin.h

sse is supposed to be enabled by default but added -msse to Other C Flags just to be sure. No help.

If instead of all the <*mmintrin.h>, I use <Accelerate/Accelerate.h>, and change all my __m128's to vFloat's, Xcode does not recognize vFloat for the Release Build, but works fine for Debug.

Clearly the Release Build is not getting enabled for SSE.  Please help.

Thanks,
Brad
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