diff options
author | Rasmus Munk Larsen <rmlarsen@google.com> | 2021-06-10 19:18:50 -0700 |
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committer | Rasmus Munk Larsen <rmlarsen@google.com> | 2021-06-11 02:35:53 +0000 |
commit | fc87e2cbaa65e7e93a2c695ce5a9dc048a64a985 (patch) | |
tree | 5660a36af91911a5f9e1b53c3de2b2622ebcce74 /Eigen/src/Core/arch/ZVector | |
parent | f64b2954c711b7846ae6ae228c5f14bd8dd56ec4 (diff) |
Use bit_cast to create -0.0 for floating point types to avoid compiler optimization changing sign with --ffast-math enabled.
Diffstat (limited to 'Eigen/src/Core/arch/ZVector')
-rwxr-xr-x | Eigen/src/Core/arch/ZVector/PacketMath.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Eigen/src/Core/arch/ZVector/PacketMath.h b/Eigen/src/Core/arch/ZVector/PacketMath.h index b10c1f6c7..2246439cc 100755 --- a/Eigen/src/Core/arch/ZVector/PacketMath.h +++ b/Eigen/src/Core/arch/ZVector/PacketMath.h @@ -94,8 +94,9 @@ static _EIGEN_DECLARE_CONST_FAST_Packet2d(ZERO, 0); static _EIGEN_DECLARE_CONST_FAST_Packet2l(ZERO, 0); static _EIGEN_DECLARE_CONST_FAST_Packet2l(ONE, 1); -static Packet2d p2d_ONE = { 1.0, 1.0 }; -static Packet2d p2d_ZERO_ = { -0.0, -0.0 }; +static Packet2d p2d_ONE = { 1.0, 1.0 }; +static Packet2d p2d_ZERO_ = { numext::bit_cast<double>0x8000000000000000ull), + numext::bit_cast<double>0x8000000000000000ull) }; #if !defined(__ARCH__) || (defined(__ARCH__) && __ARCH__ >= 12) #define _EIGEN_DECLARE_CONST_FAST_Packet4f(NAME,X) \ |