topic Re: Re:Compiler segfault when using -syntax-only flag in IFX in Intel® Fortran Compiler

Compiler segfault when using -syntax-only flag in IFX

ereisch — Wed, 20 Apr 2022 15:27:18 GMT

MODULE TEST INTERFACE MODULE SUBROUTINE REGISTER_NEW_CALLBACK ( FCN, PREEMPT ) BIND(C) USE, INTRINSIC :: ISO_C_BINDING IMPLICIT NONE TYPE(C_FUNPTR), VALUE, INTENT(IN) :: FCN LOGICAL(KIND=C_BOOL), VALUE, INTENT(IN) :: PREEMPT END SUBROUTINE REGISTER_NEW_CALLBACK END INTERFACE END MODULE TEST

Parse file with "ifx -syntax-only ifx_err.f90", and the compiler crashes.

Using version 2022.0.0 Build 20211123

Re: Compiler segfault when using -syntax-only flag in IFX

Ron_Green — Wed, 20 Apr 2022 17:49:47 GMT

I'll get a bug report going on this.

Re:Compiler segfault when using -syntax-only flag in IFX

Ron_Green — Wed, 20 Apr 2022 18:32:55 GMT

Bug ID CMLPLRLLVM-37047

Re: Compiler segfault when using -syntax-only flag in IFX

ereisch — Wed, 20 Apr 2022 19:20:45 GMT

Thanks. Any update on CMPLRIL0-33765 (support req #05030182)? This is still burning us here.

Re: Compiler segfault when using -syntax-only flag in IFX

Ron_Green — Wed, 20 Apr 2022 20:53:37 GMT

No movement on CMPLRIL0-33765 (support req #05030182). I will escalate this issue.

BUT

IFX correctly compiles and creates the genmod files. And as you may know, the binaries, genmods, etc are completely compatible between ifort and ifx. You can use IFX for this or other files that need an interface created.

Re: Compiler segfault when using -syntax-only flag in IFX

Ron_Green — Wed, 20 Apr 2022 21:16:40 GMT

I might have spoken too soon - looking at the genmod f90 file - it seems to capture the old STRUCTURE declarations but it does not have the UNION and MAP for /AA_ARRAY/ that your input source has. So not sure that interface created by IFX will work. Have a look at the genmod created by IFX. /AA_ARRAY/ seems to be the only STRUCTURE with UNION and MAP.

Re: Compiler segfault when using -syntax-only flag in IFX

ereisch — Wed, 20 Apr 2022 21:26:07 GMT

Thanks.

Unfortunately, ifx doesn't yet support a few of the ifort flags we require to run our code: "-no-global-hoist", "-prec-div", and "-prec-sqrt". Additionally, the "-sox" and "-fp-stack-check" flags are nice-to-have flags that also don't seem to be implemented yet. So we cant' move completely to "ifx" for the entire build process; however, as you note I may be able to put in a workaround to have "ifx" create the module files (using "-s" instead of "-syntax-only", and then deleting the assembler files) and then using ifort to generate the actual object files. We seem to be hitting the ifx crash whenever "-syntax-only" is passed on the command line and it is syntax-checking a F90 module.

Interestingly, when I build all of the Fortran source with "ifx" and then try linking, I get an obscure error from the linker:

ld: /path/to/executable: version node not found for symbol test@register_new_callback__. ld: failed to set dynamic section sizes: Bad value

(This assumes the original f90 definition used above, along with the following notional body:

SUBMODULE (TEST) REGISTER_NEW_CALLBACK__ CONTAINS MODULE PROCEDURE REGISTER_NEW_CALLBACK USE, INTRINSIC :: ISO_C_BINDING ... <routine body> ... END PROCEDURE REGISTER_NEW_CALLBACK END SUBMODULE REGISTER_NEW_CALLBACK__

Thanks for the suggestion.

Re: Compiler segfault when using -syntax-only flag in IFX

Steve_Lionel — Thu, 21 Apr 2022 00:25:06 GMT

The genmod.f90 files are not meant to be used, they are more for a human reference. They often don't represent everything in the generated .mod file.

Re: Re:Compiler segfault when using -syntax-only flag in IFX

Barbara_P_Intel — Tue, 03 Jan 2023 22:43:09 GMT

This bug when compiling with -syntax-only is fixed in ifx 2023.0.0. It's part of oneAPI HPC Toolkit 2023.0.

Have you downloaded this release yet? It became available in mid-December.