Changes in math-runtime-options.f90

f5759add - [flang] Try to lower math intrinsics to math operations first.

Tue, 19 Jul 2022 22:35:56 +0000

[flang] Try to lower math intrinsics to math operations first.This commit changes how math intrinsics are lowered: we, first,try to lower them into MLIR operations or libm calls viamathOperations table and only then fallback to pgmath runtime calls.The pgmath fallback is needed, because mathOperations does notsupport all intrinsics that pgmath supports. The main purposeof this change is to get rid of llvmIntrinsics table so thatwe do not have to update both llvmIntrinsics and mathOperationswhen adding new intrinsic support.mathOperations lowering should phase out pgmath lowering, whenmore operations are available (e.g. power operations beingadded in D129809 and D129811; complex type operations fromComplex dialect).Differential Revision: https://reviews.llvm.org/D130129 List of files: /llvm-project-15.0.7/flang/test/Lower/Intrinsics/math-runtime-options.f90

9f356579 - [flang] Lower Fortran math intrinsic operations into MLIR ops or libm calls.

Wed, 22 Jun 2022 21:41:02 +0000

[flang] Lower Fortran math intrinsic operations into MLIR ops or libm calls.Added new -lower-math-early option that defaults to 'true' that matchesthe current math lowering scheme. If set to 'false', the intrinsic mathoperations will be lowered to MLIR operations, which should potentiallyenable more MLIR optimizations, or libm calls, if there is no correspondingMLIR operation exists or if "precise" mode is requested.The generated math MLIR operations are then converted to LLVM dialectduring codegen phase.The -lower-math-early option is not exposed to users currently. I plan toget rid of the "early" lowering completely, when "late" loweringis robust enough to support all math intrinsics that are currentlysupported via pgmath. So "late" mode will become default and -lower-math-earlyoption will not be needed. This will effectively eliminate the mandatorydependency on pgmath in Fortran lowering, but this is WIP.Differential Revision: https://reviews.llvm.org/D128385 List of files: /llvm-project-15.0.7/flang/test/Lower/Intrinsics/math-runtime-options.f90

c49af35a - [Flang] Options to lower math intrinsics to relaxed, precise variants

Mon, 28 Mar 2022 17:05:59 +0000

[Flang] Options to lower math intrinsics to relaxed, precise variantsEnable lowering to the relaxed and precise variants in the pgmathlibrary.This is part of the upstreaming effort from the fir-dev branch in [1].[1] https://github.com/flang-compiler/f18-llvm-projectCo-authored-by: Eric Schweitz Co-authored-by: Jean Perier Co-authored-by: Peter Klausler Reviewed By: clementvalDifferential Revision: https://reviews.llvm.org/D122484 List of files: /llvm-project-15.0.7/flang/test/Lower/Intrinsics/math-runtime-options.f90