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-Mbounds reports false positive for array slices passed to DOT_PRODUCT intrinsic

11

This is a bug that affects all flang-based compilers: classic flang 7.0.1, Huawei Bisheng flang 1.3.3, NVIDIA nvfortran 22.3, and AOCC 3.2.0 flang. They raise a false positive error of...

zaikunzhang

flang generates incorrect debug info for the pointers to array slices in the below example. ``` > flang -g pointers.f90 -o pointers > gdb ./pointers > b pointers.f90:36 > run...

RichBarton-Arm

OpenBLAS LAPACK Tests fail when compiled with flang at O2 or above

4

https://github.com/xianyi/OpenBLAS/pull/2652 Here are two build logs, one prior to https://github.com/xianyi/OpenBLAS/pull/2652 and using the standard `> O1` flags. You can search the log for `FATAL ERROR` to find the failing tests....

leezu

Flang segmentation fault when compiling large data block with comment

2

[test.f.txt](https://github.com/flang-compiler/flang/files/6373632/test.f.txt) A segmentation fault occurs in case there is a comment at the end of a data block with a large number of elements (>496). This happens in flang-7(supplied by...

sohnishi

`-fno-fortran-main` not working on macOS

2

I came across [this problem](https://github.com/xianyi/OpenBLAS/issues/3528) while compiling OpenBLAS on macOS. Calling flang with `-fno-fortran-main` does nothing, by using `-v` you can see that ld still receives `-lflangmain`. To trigger an...

meow464

fishy behaviour mod intrinsic

6

1127% flang --version clang version 6.0.1 (https://github.com/flang-compiler/flang-driver.git d46cbfe84bfcdbdb70ef5307ef85b745fd50c205) (https://github.com/llvm-mirror/llvm.git 2c9cf4f65f36fe91710c4b1bfd2f8d9533ac01b5) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /snow/valin/llvm/bin 1130% cat hello.f90 program hello print *,'Hello World' end 1131% flang hello.f90 /snow/valin/llvm/bin/../lib/libflang.so:...

mfvalin

Hi, A variable labeled threadprivate in a fortran module lose his state after a use instruction follow by : only, in user module. A simple test case attached to this...

dsGoose

Build failure on Arch Linux due to -Werror=format-security

3

Trying to build the latest classic flang release (20211221) against LLVM 13 on Arch Linux leads to the following failure when compiling the classic flang driver: ``` [300/1624] Building CXX...

awvwgk

flang vs gfortran compiling same code with -flto flag flang runs into /usr/bin/ld: /usr/bin/../lib/LLVMgold.so: error loading plugin: /usr/bin/../lib/LLVMgold.so: cannot open shared object file: No such file or directory

1

flang vs gfortran compiling same code with -flto flag flang runs into /usr/bin/ld: /usr/bin/../lib/LLVMgold.so: error loading plugin: /usr/bin/../lib/LLVMgold.so: cannot open shared object file: No such file or directory (base) ian@ian-Aspire-One-753:~/CodeCode/CodeCode$...

iajzenszmi

base) ian@ian-Aspire-One-753:~/flang$ cmake flang CMake Error at CMakeLists.txt:92 (message): llvm-config not found -- LLVM_CONFIG-NOTFOUND -- Configuring incomplete, errors occurred! See also "/home/ian/flang/CMakeFiles/CMakeOutput.log".

1

base) ian@ian-Aspire-One-753:~/flang$ cmake flang CMake Error at CMakeLists.txt:92 (message): llvm-config not found -- LLVM_CONFIG-NOTFOUND -- Configuring incomplete, errors occurred! See also "/home/ian/flang/CMakeFiles/CMakeOutput.log".

iajzenszmi