[Bug fortran/79430] [7/8 Regression] action of statement incorrectly optimised away

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79430

--- Comment #64 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to Jürgen Reuter from comment #63)
> (In reply to Thomas Koenig from comment #62)

> > I am currently at a loss how to proceed.
> 
> Darn.... Did you apply the patch from PR79344?

Yes.

What I get if I do


> `make check TESTS=mlm_matching_isr.run`.

==========================================================
   WHIZARD 2.4.1: tests/functional_tests/test-suite.log
==========================================================

# TOTAL: 1
# PASS:  0
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

is

FAIL: mlm_matching_isr.run
==========================

Running script ./mlm_matching_isr.run
| Writing log to 'mlm_matching_isr.log'
| (Logging turned off.)
| Preloaded model: SM
| Process library 'mlm_matching_isr_lib': initialized
| Preloaded library: mlm_matching_isr_lib
| Reading commands from file
'../../share/tests/functional_tests/mlm_matching_isr.sin'
| Switching to model 'SM', scheme 'default'
?logging => true
?openmp_logging = false
?vis_history = false
?integration_timer = false
?pacify = true
+  IDENTIFIER  <variable>  = u
******************************************************************************
*** ERROR: This PDG-array variable is undefined at this point
******************************************************************************
|             (WHIZARD run continues)
+  IDENTIFIER  <variable>  = d
******************************************************************************
*** ERROR: This PDG-array variable is undefined at this point
******************************************************************************
|             (WHIZARD run continues)
[user variable] quark = PDG()
+  IDENTIFIER  <variable>  = U
******************************************************************************
*** ERROR: This PDG-array variable is undefined at this point
******************************************************************************
|             (WHIZARD run continues)
+  IDENTIFIER  <variable>  = D

This occurred between 242780 (OK) and 242981 (not OK).

Oh well... maybe I will bisect that one first, to find out what
went wrong there, and then another bisection to find out which patch
fixed that, and then....