Merge pull request Reference-LAPACK#775 from echeresh/echeresh/fix-larr

Fix uninitialized out variables in *LARR* functions

Author: langou

SRC/dlarra.f

@@ -164,6 +164,7 @@ SUBROUTINE DLARRA( N, D, E, E2, SPLTOL, TNRM,
 *     .. Executable Statements ..
 *
       INFO = 0
+      NSPLIT = 1
 *
 *     Quick return if possible
 *
@@ -172,7 +173,6 @@ SUBROUTINE DLARRA( N, D, E, E2, SPLTOL, TNRM,
       END IF
 *
 *     Compute splitting points
-      NSPLIT = 1
       IF(SPLTOL.LT.ZERO) THEN
 *        Criterion based on absolute off-diagonal value
          TMP1 = ABS(SPLTOL)* TNRM

SRC/dlarrc.f

@@ -167,16 +167,16 @@ SUBROUTINE DLARRC( JOBT, N, VL, VU, D, E, PIVMIN,
 *     .. Executable Statements ..
 *
       INFO = 0
+      LCNT = 0
+      RCNT = 0
+      EIGCNT = 0
 *
 *     Quick return if possible
 *
       IF( N.LE.0 ) THEN
          RETURN
       END IF
 *
-      LCNT = 0
-      RCNT = 0
-      EIGCNT = 0
       MATT = LSAME( JOBT, 'T' )
 
 

SRC/dlarre.f

@@ -367,6 +367,8 @@ SUBROUTINE DLARRE( RANGE, N, VL, VU, IL, IU, D, E, E2,
 *
 
       INFO = 0
+      NSPLIT = 0
+      M = 0
 *
 *     Quick return if possible
 *
@@ -384,8 +386,6 @@ SUBROUTINE DLARRE( RANGE, N, VL, VU, IL, IU, D, E, E2,
          IRANGE = INDRNG
       END IF
 
-      M = 0
-
 *     Get machine constants
       SAFMIN = DLAMCH( 'S' )
       EPS = DLAMCH( 'P' )

SRC/slarra.f

@@ -164,6 +164,7 @@ SUBROUTINE SLARRA( N, D, E, E2, SPLTOL, TNRM,
 *     .. Executable Statements ..
 *
       INFO = 0
+      NSPLIT = 1
 *
 *     Quick return if possible
 *
@@ -172,7 +173,6 @@ SUBROUTINE SLARRA( N, D, E, E2, SPLTOL, TNRM,
       END IF
 *
 *     Compute splitting points
-      NSPLIT = 1
       IF(SPLTOL.LT.ZERO) THEN
 *        Criterion based on absolute off-diagonal value
          TMP1 = ABS(SPLTOL)* TNRM

SRC/slarrc.f

@@ -167,16 +167,16 @@ SUBROUTINE SLARRC( JOBT, N, VL, VU, D, E, PIVMIN,
 *     .. Executable Statements ..
 *
       INFO = 0
+      LCNT = 0
+      RCNT = 0
+      EIGCNT = 0
 *
 *     Quick return if possible
 *
       IF( N.LE.0 ) THEN
          RETURN
       END IF
 *
-      LCNT = 0
-      RCNT = 0
-      EIGCNT = 0
       MATT = LSAME( JOBT, 'T' )
 
 

SRC/slarre.f

@@ -367,6 +367,8 @@ SUBROUTINE SLARRE( RANGE, N, VL, VU, IL, IU, D, E, E2,
 *
 
       INFO = 0
+      NSPLIT = 0
+      M = 0
 *
 *     Quick return if possible
 *
@@ -384,8 +386,6 @@ SUBROUTINE SLARRE( RANGE, N, VL, VU, IL, IU, D, E, E2,
          IRANGE = INDRNG
       END IF
 
-      M = 0
-
 *     Get machine constants
       SAFMIN = SLAMCH( 'S' )
       EPS = SLAMCH( 'P' )