| ! { dg-do compile } |
| ! { dg-additional-options "-Ofast" } |
| ! { dg-additional-options "-mavx" { target x86_64-*-* i?86-*-* } } |
| |
| SUBROUTINE PASSB4 (IDO,L1,CC,CH,WA1,WA2,WA3) |
| IMPLICIT REAL(4) (A-H, O-Z) |
| DIMENSION CC(IDO,4,L1), CH(IDO,L1,4), WA1(*), WA2(*), WA3(*) |
| 102 DO 104 K=1,L1 |
| DO 103 I=2,IDO,2 |
| TI1 = CC(I,1,K)-CC(I,3,K) |
| TI2 = CC(I,1,K)+CC(I,3,K) |
| TI3 = CC(I,2,K)+CC(I,4,K) |
| TR2 = CC(I-1,1,K)+CC(I-1,3,K) |
| TI4 = CC(I-1,2,K)-CC(I-1,4,K) |
| TR3 = CC(I-1,2,K)+CC(I-1,4,K) |
| CH(I-1,K,1) = TR2+TR3 |
| CH(I,K,1) = TI2+TI3 |
| CI4 = TI1-TI4 |
| CH(I-1,K,4) = CI4 |
| CH(I,K,4) = CI4 |
| 103 CONTINUE |
| 104 CONTINUE |
| RETURN |
| END |
