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| .. | | 03-May-2022 | - |
| docs/ | H | 03-May-2022 | - | 2,779 | 2,144 |
| include/ | H | 09-Oct-2019 | - | 4,288 | 3,194 |
| lib/ | H | 03-May-2022 | - | 6,250 | 4,816 |
| runtime/ | H | 03-May-2022 | - | 274,629 | 203,138 |
| test/ | H | 03-May-2022 | - | 314,944 | 156,692 |
| tools/ | H | 03-May-2022 | - | 490,424 | 394,977 |
| utils/errmsg/ | H | 03-May-2022 | - | 566 | 358 |
| .gitignore | H A D | 09-Oct-2019 | 16 | 4 | 2 |
| README.md | H A D | 09-Oct-2019 | 2.5 KiB | 65 | 47 |
README.md
1Flang
2=====
3
4Flang is a Fortran compiler targeting LLVM.
5
6Visit the flang wiki for more information:
7
8https://github.com/flang-compiler/flang/wiki
9
10We have mailing lists for announcements and developers.
11Here's the link with the sign-up information:
12
13http://lists.flang-compiler.org/mailman/listinfo
14
15We have a flang-compiler channel on Slack. Slack is invitation only but anyone can join. Here's the link:
16
17https://join.slack.com/t/flang-compiler/shared_invite/MjExOTEyMzQ3MjIxLTE0OTk4NzQyNzUtODQzZWEyMjkwYw
18
19
20## Building Flang
21
22Instructions for building Flang can be found on the Flang wiki:
23https://github.com/flang-compiler/flang/wiki/Building-Flang
24
25
26## Compiler Options
27
28For a list of compiler options, enter
29
30```
31% flang -help
32```
33
34The Flang compiler supports accepts all clang 4.0 compiler options and supports many, as well as the following flang-specific compiler options:
35
36```lang-none
37-noFlangLibs Do not link against Flang libraries
38-mp Enable OpenMP and link with with OpenMP library libomp
39-nomp Do not link with OpenMP library libomp
40-Mbackslash Treat backslash character like a C-style escape character
41-Mno-backslash Treat backslash like any other character
42-Mbyteswapio Swap byte-order for unformatted input/output
43-Mfixed Assume fixed-format source
44-Mextend Allow source lines up to 132 characters
45-Mfreeform Assume free-format source
46-Mpreprocess Run preprocessor for Fortran files
47-Mrecursive Generate code to allow recursive subprograms
48-Mstandard Check standard conformance
49-Msave Assume all variables have SAVE attribute
50-module path to module file (-I also works)
51-Mallocatable=95 Select Fortran 95 semantics for assignments to allocatable objects (Default)
52-Mallocatable=03 Select Fortran 03 semantics for assignments to allocatable objects
53-static-flang-libs Link using static Flang libraries
54-M[no]daz Treat denormalized numbers as zero
55-M[no]flushz Set SSE to flush-to-zero mode
56-Mcache_align Align large objects on cache-line boundaries
57-M[no]fprelaxed This option is ignored
58-fdefault-integer-8 Treat INTEGER and LOGICAL as INTEGER*8 and LOGICAL*8
59-fdefault-real-8 Treat REAL as REAL*8
60-i8 Treat INTEGER and LOGICAL as INTEGER*8 and LOGICAL*8
61-r8 Treat REAL as REAL*8
62-fno-fortran-main Don't link in Fortran main
63```
64
65