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fix bug #186 (in 32 bits mode, gcc 4.3 messed up with pfirst for complex<float>)

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This commit is contained in:
Gael Guennebaud 2011-02-18 15:47:17 +01:00
parent f7cd63b964
commit 8f8c67b8bd
1 changed files with 3 additions and 2 deletions
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5
Eigen/src/Core/arch/SSE/Complex.h
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@ -111,9 +111,10 @@ template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<flo
template<> EIGEN_STRONG_INLINE std::complex<float> pfirst<Packet2cf>(const Packet2cf& a)
{
#if (defined __GNUC__) && (__GNUC__==4) && (__GNUC_MINOR__==2) && (__GNUC_PATCHLEVEL__<=3)
// workaround gcc 4.2.1 ICE (mac's gcc version) - I'm not sure how the 4.2.2 and 4.2.3 deal with it, but 4.2.4 works well.
#if (defined __GNUC__) && (((__GNUC__==4) && (__GNUC_MINOR__==2) && (__GNUC_PATCHLEVEL__<=3)) || ((__GNUC__==4) && (__GNUC_MINOR__==3)))
// Workaround gcc 4.2.1 ICE (mac's gcc version) - I'm not sure how the 4.2.2 and 4.2.3 deal with it, but 4.2.4 works well.
// this is not performance wise ideal, but who cares...
// This workaround also fix invalid code generation with gcc 4.3
EIGEN_ALIGN16 std::complex<float> res[2];
_mm_store_ps((float*)res, a.v);
return res[0];