[Patch, Fortran] PR87597 - fix off-by-one issue with inline matmul

[Dominique d'Humières]

Hi Tobias,

UNRESOLVED: gfortran.dg/inline_matmul_24.f90   -O0   scan-tree-dump-times optimized "gamma5[__var_1_do \\\\* 4 \\\\+ __var_2_do]" 1
UNRESOLVED: gfortran.dg/inline_matmul_24.f90   -O1   scan-tree-dump-times optimized "gamma5[__var_1_do \\\\* 4 \\\\+ __var_2_do]" 1
UNRESOLVED: gfortran.dg/inline_matmul_24.f90   -O2   scan-tree-dump-times optimized "gamma5[__var_1_do \\\\* 4 \\\\+ __var_2_do]" 1
UNRESOLVED: gfortran.dg/inline_matmul_24.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions   scan-tree-dump-times optimized "gamma5[__var_1_do \\\\* 4 \\\\+ __var_2_do]" 1
UNRESOLVED: gfortran.dg/inline_matmul_24.f90   -O3 -g   scan-tree-dump-times optimized "gamma5[__var_1_do \\\\* 4 \\\\+ __var_2_do]" 1
UNRESOLVED: gfortran.dg/inline_matmul_24.f90   -Os   scan-tree-dump-times optimized "gamma5[__var_1_do \\\\* 4 \\\\+ __var_2_do]" 1
IMO this comes from

! { dg-options "-ffrontend-optimize -fdump-tree-original" }
…
! { dg-final { scan-tree-dump-times "gamma5\[__var_1_do \\* 4 \\+ __var_2_do\]" 1 "optimized" } }

Shouldn’t -fdump-tree-original be -fdump-tree-optimized?

TIA

Dominique