! { dg-do compile } | |
! { dg-options "-O1 -fno-signed-zeros -fno-trapping-math -fdump-tree-optimized" } | |
! Fortran defaults to associative by default, | |
! with -fno-signed-zeros -fno-trapping-math this should optimize away all additions | |
SUBROUTINE S1(a) | |
REAL :: a | |
a=1+a-1 | |
END SUBROUTINE S1 | |
! { dg-final { scan-tree-dump-times " \\\+ " 0 "optimized" } } |