c9900015a9
This patch adds an option to select the method for computing complex number division. It uses `LoweringOptions` to determine whether to lower complex division to a runtime function call or to MLIR's `complex.div`, and `CodeGenOptions` to select the computation algorithm for `complex.div`. The available option values and their corresponding algorithms are as follows: - `full`: Lower to a runtime function call. (Default behavior) - `improved`: Lower to `complex.div` and expand to Smith's algorithm. - `basic`: Lower to `complex.div` and expand to the algebraic algorithm. See also the discussion in the following discourse post: https://discourse.llvm.org/t/optimization-of-complex-number-division/83468 --------- Co-authored-by: Tarun Prabhu <tarunprabhu@gmail.com>
24 lines
760 B
Fortran
24 lines
760 B
Fortran
! Test range options for complex multiplication and division.
|
|
|
|
! RUN: %flang -### -c %s 2>&1 \
|
|
! RUN: | FileCheck %s --check-prefix=RANGE
|
|
|
|
! RUN: %flang -### -fcomplex-arithmetic=full -c %s 2>&1 \
|
|
! RUN: | FileCheck %s --check-prefix=FULL
|
|
|
|
! RUN: %flang -### -fcomplex-arithmetic=improved -c %s 2>&1 \
|
|
! RUN: | FileCheck %s --check-prefix=IMPRVD
|
|
|
|
! RUN: %flang -### -fcomplex-arithmetic=basic -c %s 2>&1 \
|
|
! RUN: | FileCheck %s --check-prefix=BASIC
|
|
|
|
! RUN: not %flang -### -fcomplex-arithmetic=foo -c %s 2>&1 \
|
|
! RUN: | FileCheck %s --check-prefix=ERR
|
|
|
|
! RANGE-NOT: -complex-range=
|
|
! FULL: -complex-range=full
|
|
! IMPRVD: -complex-range=improved
|
|
! BASIC: -complex-range=basic
|
|
|
|
! ERR: error: unsupported argument 'foo' to option '-fcomplex-arithmetic='
|