[flang-commits] [flang] [flang][Lower][OpenMP] Don't read moldarg for static sized array (PR #125901)

[LLVM Continuous Integration via flang-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `premerge-monolithic-linux` running on `premerge-linux-1` while building `flang` at step 7 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/153/builds/23130

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 7 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'Flang :: Lower/OpenMP/different_vars_lastprivate_barrier.f90' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /build/buildbot/premerge-monolithic-linux/build/bin/flang -fc1 -fopenmp -mmlir --openmp-enable-delayed-privatization-staging=true -emit-hlfir /build/buildbot/premerge-monolithic-linux/llvm-project/flang/test/Lower/OpenMP/different_vars_lastprivate_barrier.f90 -o - | /build/buildbot/premerge-monolithic-linux/build/bin/FileCheck /build/buildbot/premerge-monolithic-linux/llvm-project/flang/test/Lower/OpenMP/different_vars_lastprivate_barrier.f90
+ /build/buildbot/premerge-monolithic-linux/build/bin/FileCheck /build/buildbot/premerge-monolithic-linux/llvm-project/flang/test/Lower/OpenMP/different_vars_lastprivate_barrier.f90
+ /build/buildbot/premerge-monolithic-linux/build/bin/flang -fc1 -fopenmp -mmlir --openmp-enable-delayed-privatization-staging=true -emit-hlfir /build/buildbot/premerge-monolithic-linux/llvm-project/flang/test/Lower/OpenMP/different_vars_lastprivate_barrier.f90 -o -
/build/buildbot/premerge-monolithic-linux/llvm-project/flang/test/Lower/OpenMP/different_vars_lastprivate_barrier.f90:16:10: error: CHECK: expected string not found in input
! CHECK: %[[BOX_DIMS:.*]]:3 = fir.box_dims %[[ORIG_VAL]], %{{.*}} : ([[BOX_TYPE]], index) -> (index, index, index)
         ^
<stdin>:17:21: note: scanning from here
 %0 = fir.load %arg0 : !fir.ref<!fir.box<!fir.array<3xi32>>>
                    ^
<stdin>:17:21: note: with "ORIG_VAL" equal to "0"
 %0 = fir.load %arg0 : !fir.ref<!fir.box<!fir.array<3xi32>>>
                    ^
<stdin>:17:21: note: with "BOX_TYPE" equal to "!fir\\.box<!fir\\.array<3xi32>>"
 %0 = fir.load %arg0 : !fir.ref<!fir.box<!fir.array<3xi32>>>
                    ^
<stdin>:34:2: note: possible intended match here
 %3 = fir.shape %c3 : (index) -> !fir.shape<1>
 ^

Input file: <stdin>
Check file: /build/buildbot/premerge-monolithic-linux/llvm-project/flang/test/Lower/OpenMP/different_vars_lastprivate_barrier.f90

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            .
            .
            .
           12:  %4 = fir.embox %2#0(%3) : (!fir.heap<!fir.array<3xi32>>, !fir.shapeshift<1>) -> !fir.box<!fir.array<3xi32>> 
           13:  fir.store %4 to %arg1 : !fir.ref<!fir.box<!fir.array<3xi32>>> 
           14:  omp.yield(%arg1 : !fir.ref<!fir.box<!fir.array<3xi32>>>) 
           15:  } dealloc { 
           16:  ^bb0(%arg0: !fir.ref<!fir.box<!fir.array<3xi32>>>): 
           17:  %0 = fir.load %arg0 : !fir.ref<!fir.box<!fir.array<3xi32>>> 
check:16'0                         X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
check:16'1                                                                   with "ORIG_VAL" equal to "0"
check:16'2                                                                   with "BOX_TYPE" equal to "!fir\\.box<!fir\\.array<3xi32>>"
           18:  %1 = fir.box_addr %0 : (!fir.box<!fir.array<3xi32>>) -> !fir.ref<!fir.array<3xi32>> 
check:16'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           19:  %2 = fir.convert %1 : (!fir.ref<!fir.array<3xi32>>) -> i64 
check:16'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           20:  %c0_i64 = arith.constant 0 : i64 
check:16'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           21:  %3 = arith.cmpi ne, %2, %c0_i64 : i64 
...

```

</details>

https://github.com/llvm/llvm-project/pull/125901