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AMD backend failure

 
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mecej4



Joined: 31 Oct 2006
Posts: 1707

PostPosted: Sat May 14, 2022 3:04 pm    Post subject: AMD backend failure Reply with quote

The 8.84 compiler fails to compile the following cut-down code with /64. There is no problem with 32-bit compilation, and the problem goes away if the second argument to DCMPLX is "0.0".

Code:
subroutine FUNMR(A,n,C)
implicit none
integer::n,i,j
complex*16, dimension(0:n-1, 0:n-1) :: C
complex*16 dcmplx
real :: A(0:N-1,0:N-1)

do i=0,n-1
    do j=0,n-1
        C(i,j)=dcmplx(A(i,j),0)
    end do
end do
end subroutine


The compiler output:

Code:
T:\solanki>ftn95 /64 mrs1.f90
[FTN95/x64 Ver. 8.84.0 Copyright (c) Silverfrost Ltd 1993-2022]
ERROR T:\solanki\mrs1.F90 1:  AMD backend failure:Failed to do register-register emit for CVTSS2SD at 97
ERROR T:\solanki\mrs1.F90 1:  AMD backend failure:Failed to do memory-register emit for MOVSD at 98
ERROR T:\solanki\mrs1.F90 1:  AMD backend failure:Failed to do register-memory emit for MOVDQA at 99
ERROR T:\solanki\mrs1.F90 1:  AMD backend failure:Failed to do memory-register emit for MOVDQU at 101
    4 ERRORS  [<FUNMR> FTN95 v8.84.0]
*** Compilation failed
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PaulLaidler
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Joined: 21 Feb 2005
Posts: 7366
Location: Salford, UK

PostPosted: Sat May 14, 2022 5:56 pm    Post subject: Reply with quote

mecej4

Thank you for the bug report. I will make a note that this needs fixing.
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