diff options
Diffstat (limited to 'gcc/testsuite/gfortran.fortran-torture/compile/pr39937.f')
| -rw-r--r-- | gcc/testsuite/gfortran.fortran-torture/compile/pr39937.f | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.fortran-torture/compile/pr39937.f b/gcc/testsuite/gfortran.fortran-torture/compile/pr39937.f new file mode 100644 index 000000000..5ead135d8 --- /dev/null +++ b/gcc/testsuite/gfortran.fortran-torture/compile/pr39937.f @@ -0,0 +1,28 @@ + SUBROUTINE DTREVC( SIDE, HOWMNY, SELECT, N, T, LDT, VL, LDVL, VR, + $ LDVR, MM, M, WORK, INFO ) + DOUBLE PRECISION T( LDT, * ), VL( LDVL, * ), VR( LDVR, * ), + $ WORK( * ) + DOUBLE PRECISION X( 2, 2 ) + CALL DLALN2( .FALSE., 1, 1, SMIN, ONE, T( J, J ), + $ ZERO, X, 2, SCALE, XNORM, IERR ) + CALL DSCAL( KI, SCALE, WORK( 1+N ), 1 ) + DO 90 J = KI - 2, 1, -1 + IF( J.GT.JNXT ) + $ GO TO 90 + JNXT = J - 1 + IF( J.GT.1 ) THEN + IF( T( J, J-1 ).NE.ZERO ) THEN + IF( WORK( J ).GT.BIGNUM / XNORM ) THEN + X( 1, 1 ) = X( 1, 1 ) / XNORM + END IF + END IF + CALL DLALN2( .FALSE., 2, 2, SMIN, ONE, + $ T( J-1, J-1 ), LDT, ONE, ONE, + $ XNORM, IERR ) + CALL DAXPY( J-2, -X( 1, 1 ), T( 1, J-1 ), 1, + $ WORK( 1+N ), 1 ) + CALL DAXPY( J-2, -X( 2, 2 ), T( 1, J ), 1, + $ WORK( 1+N2 ), 1 ) + END IF + 90 CONTINUE + END |