| ! { dg-do compile { target i?86-*-* x86_64-*-* } } |
| ! { dg-options "-O3 -mavx -mvzeroupper -fno-tree-slp-vectorize -mtune=generic -dp" } |
| |
| PROGRAM MG3XDEMO |
| INTEGER LM, NM, NV, NR, NIT |
| |
| |
| PARAMETER( LM=7 ) |
| C PARAMETER( NIT=40 ) |
| PARAMETER( NM=2+2**LM, NV=NM**3 ) |
| PARAMETER( NR = (8*(NM**3+NM**2+5*NM-23+7*LM))/7 ) |
| C |
| C |
| C If commented line is used than there is no penalty |
| C COMMON /X/ U, V, R, A, C, IR, MM |
| COMMON /X/ A, C, IR, MM |
| REAL*8 A(0:3),C(0:3) |
| |
| INTEGER IT, N |
| INTEGER LMI, MTIME, NTIMES |
| C |
| READ *,LMI |
| READ *,NIT |
| READ *,NTIMES |
| READ *,U0 |
| |
| READ 9004, A |
| READ 9004, C |
| 9004 FORMAT (4D8.0) |
| |
| DO I = 0, 3 |
| A(I) = A(I)/3.0D0 |
| C(I) = C(I)/64.0D0 |
| ENDDO |
| C |
| N = 2 + 2**LMI |
| |
| WRITE(6,7)N-2,N-2,N-2,NIT |
| 6 FORMAT( I4, 2E19.12) |
| 7 FORMAT(/,' KERNEL B: SOLVING A POISSON PROBLEM ON A ',I6,' BY ', |
| > I6,' BY ',I6,' GRID,',/,' USING ',I6,' MULTIGRID ITERATIONS.',/) |
| C |
| STOP |
| END |
| |
| ! { dg-final { scan-assembler-times "avx_vzeroupper" 1 } } |
