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failed to run SPEC CPU2017 521.wrf_r with -march=native or -march=skylake.

9

My system: Intel Hades Canyon (CPU: Intel KabyLake-G 8809G ) with 16GB memory. I built the flang according this: https://github.com/flang-compiler/flang/wiki/Building-Flang. It's strange, the flang bin file bulit does not show...

edisonchan

Hi @kiranchandramohan Fix #193 Please review it. Thanks, Leslie Zhai

xiangzhai

I am using Flang Binary Release 2019-03-29 from https://github.com/flang-compiler/flang/releases/tag/flang_20190329 Consider the following do-nothing code named test.f90: ``` ! test.f90 program test end program test ``` If I compile it with...

zaikunzhang

Make backslash behaviour compatible with gfortran

1

There are several issues with the `-Mbackslash` option. 1. Currently, Flang's default behaviour is not compatible with that of gfortran and ifort (as explained in [Arm's own documentation](https://developer.arm.com/documentation/101726/0210/Port-and-Optimize-your-Application-to-SVE-enabled-Arm-based-processors/Fortran-compiler-migration-guides/armflang-for-ifort-users#urj1591008865151__handling-backslash-characters)). Some of...

bryanpkc

Multiple occurrences of a local symbol while debugging OpenMP code

9

It took a while, but the problem revealed itself eventually. Consider following piece of a Fortran code: ``` program hello_f use omp_lib integer:: x = 40 integer:: tid, nthreads, tmp_x...

pawosm-arm

I get an error message ``` f18 -ff2c -finit-local-zero -c -v -march=native -O3 -fno-strict-overflow -I /home/alex/kepler/llvm /home/alex/kepler/source/kepdef.f /home/alex/kepler/source/kepcom:2337:18: error: Equivalence set cannot contain 'odum' that is numeric sequence type and...

2sn

difference between flang and f18?

5

For me there is a lot of confusion to me about `f18` compiler and `flang`, whether this is actually the same thing. When I use `f18` things are definitively even...

2sn

Runtime crash due to an incorrect string length in a string array pointer

2

This test program crashes with a segmentation fault when compiled with the latest Flang on X86: ```fortran program example implicit none character(:), pointer :: ptr(:) character(3), target :: array(1) =...

bryanpkc

Compiling Flang for LLVM 11

5

I am trying to build Flang on the new Apple M1 architecture, however it doesn't work since LLVM 10 doesn't support Apple Silicon. I see that classic-flang-llvm-project has an LLVM...

dnoan

Flang compiled code returns incorrect length for a string

11

Flang compiled code returns incorrect length for a variable-length string returned from a function. The following code return length as 0 or a random number with Flang. Gfortran compiled code...

kiranchandramohan