There's currently no way to get accurate cube roots in the math dialect.
powf(x, 1/3.0) is too inaccurate in some cases.
Reviewed By: akuegel
Differential Revision: https://reviews.llvm.org/D140842
Added arith::FastMathAttr and ArithFastMathInterface support for Math dialect
floating point operations.
This change-set creates ArithCommon conversion utils that currently
provide classes and methods to aid with arith::FastMathAttr conversion
into LLVM::FastmathFlags. These utils are used in ArithToLLVM and
MathToLLVM convertors, but may eventually be used by other converters
that need to convert fast math attributes.
Since Math dialect operations use arith::FastMathAttr, MathOps.td now
has to include enum and attributes definitions from Arith dialect.
To minimize the amount of TD code included from Arith dialect,
I moved FastMathAttr definition into ArithBase.td.
Differential Revision: https://reviews.llvm.org/D136312
This patch adds TruncOp for Math, it returns the operand rounded to the nearest integer not larger in magnitude than the operand. And this patch also adds the correspond llvm intrinsic op.
Reviewed By: Mogball
Differential Revision: https://reviews.llvm.org/D133342
This is similar to math.round, but rounds to even instead of rounding away from
zero in the case of halfway values. This CL also adds lowerings to libm and
to the LLVM intrinsic.
Differential Revision: https://reviews.llvm.org/D132375
The operation computes pow(b, p), where 'b' is floating point
and 'p' is a signed integer. The result's type matches 'b' type.
The operands must have the same shape.
Differential Revision: https://reviews.llvm.org/D129811
The operation computes pow(b, p), where 'b' and 'p' are signed integers
of the same width. The result's type matches the operands' type.
Differential Revision: https://reviews.llvm.org/D129809
Introduce RoundOp in the math dialect. The operation rounds the operand to the
nearest integer value in floating-point format. RoundOp lowers to LLVM
intrinsics 'llvm.intr.round' or as a function call to libm (round or roundf).
Reviewed By: ftynse
Differential Revision: https://reviews.llvm.org/D127286
