diff options
| author |  Gael Guennebaud <g.gael@free.fr> | 2018-12-07 18:03:36 +0100 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2018-12-07 18:03:36 +0100 |
| commit | 956678a4eff96979ab2139e9ce14f98bb820aa9d (patch) | |
| tree | bed59d69fb077a4547d1cd9ae35dfaae658ce018 /Eigen | |
| parent | 7b6d0ff1f6afdb7f6137c92a76d20e7497e2fa2a (diff) | |
bug #1515: disable gebp's 3pX4 micro kernel for MSVC<=19.14 because of register spilling.
Diffstat (limited to 'Eigen')
| -rw-r--r-- | Eigen/src/Core/products/GeneralBlockPanelKernel.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Eigen/src/Core/products/GeneralBlockPanelKernel.h b/Eigen/src/Core/products/GeneralBlockPanelKernel.h index 88ca9cc97..bcb332cb9 100644 --- a/Eigen/src/Core/products/GeneralBlockPanelKernel.h +++ b/Eigen/src/Core/products/GeneralBlockPanelKernel.h @@ -370,10 +370,12 @@ public: // register block size along the M direction (currently, this one cannot be modified) default_mr = (EIGEN_PLAIN_ENUM_MIN(16,NumberOfRegisters)/2/nr)*LhsPacketSize, -#if defined(EIGEN_HAS_SINGLE_INSTRUCTION_MADD) && !defined(EIGEN_VECTORIZE_ALTIVEC) && !defined(EIGEN_VECTORIZE_VSX) +#if defined(EIGEN_HAS_SINGLE_INSTRUCTION_MADD) && !defined(EIGEN_VECTORIZE_ALTIVEC) && !defined(EIGEN_VECTORIZE_VSX) \ + && ((!EIGEN_COMP_MSVC) || (EIGEN_COMP_MSVC>=1914)) // we assume 16 registers // See bug 992, if the scalar type is not vectorizable but that EIGEN_HAS_SINGLE_INSTRUCTION_MADD is defined, // then using 3*LhsPacketSize triggers non-implemented paths in syrk. + // Bug 1515: MSVC prior to v19.14 yields to register spilling. mr = Vectorizable ? 3*LhsPacketSize : default_mr, #else mr = default_mr, |