Attachment 363 Details for Bug 556 – Disable ipa-cp-clone flag with mingw >= 6.0

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[patch] Disable ipa-cp-clone flag with mingw >= 6.0

Fix_556.diff (text/plain), 1.18 KB, created by Gael Guennebaud on 2013-06-28 23:48:06 UTC

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Creator: Gael Guennebaud

Created: 2013-06-28 23:48:06 UTC

Size: 1.18 KB

patch

obsolete

>diff --git a/Eigen/Core b/Eigen/Core
>--- a/Eigen/Core
>+++ b/Eigen/Core
>@@ -14,16 +14,22 @@
> // first thing Eigen does: stop the compiler from committing suicide
> #include "src/Core/util/DisableStupidWarnings.h"
> 
> // then include this file where all our macros are defined. It's really important to do it first because
> // it's where we do all the alignment settings (platform detection and honoring the user's will if he
> // defined e.g. EIGEN_DONT_ALIGN) so it needs to be done before we do anything with vectorization.
> #include "src/Core/util/Macros.h"
> 
>+// Disable the ipa-cp-clone optimization flag with MinGW 6.x or newer (enabled by default with -O3)
>+// See http://eigen.tuxfamily.org/bz/show_bug.cgi?id=556 for details.
>+#if defined(__MINGW32__) && EIGEN_GNUC_AT_LEAST(4,6)
>+  #pragma GCC optimize ("-fno-ipa-cp-clone")
>+#endif
>+
> #include <complex>
> 
> // this include file manages BLAS and MKL related macros
> // and inclusion of their respective header files
> #include "src/Core/util/MKL_support.h"
> 
> // if alignment is disabled, then disable vectorization. Note: EIGEN_ALIGN is the proper check, it takes into
> // account both the user's will (EIGEN_DONT_ALIGN) and our own platform checks

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