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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/g77/20000511-2.f | |
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Diffstat (limited to 'gcc/testsuite/gfortran.dg/g77/20000511-2.f')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/g77/20000511-2.f | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/g77/20000511-2.f b/gcc/testsuite/gfortran.dg/g77/20000511-2.f new file mode 100644 index 000000000..1ae24ae5b --- /dev/null +++ b/gcc/testsuite/gfortran.dg/g77/20000511-2.f @@ -0,0 +1,62 @@ +c { dg-do compile } + subroutine sgbcon(norm,n,kl,ku,ab,ldab,ipiv,anorm,rcond,work,iwork + &,info) +C +C -- LAPACK routine (version 3.0) -- +C Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd., +C Courant Institute, Argonne National Lab, and Rice University +C September 30, 1994 +C +C .. Scalar Arguments .. + character norm + integer info,kl,ku,ldab,n + real anorm,rcond +C .. +C .. Array Arguments .. + integer ipiv(n),iwork(n) + real ab(ldab,n),work(n) +C .. +C +C Purpose +C ======= +C demonstrate g77 bug at -O -funroll-loops +C ===================================================================== +C +C .. Parameters .. + real one,zero + parameter(one= 1.0e+0,zero= 0.0e+0) +C .. +C .. Local Scalars .. + logical lnoti,onenrm + character normin + integer ix,j,jp,kase,kase1,kd,lm + real ainvnm,scale,smlnum,t +C .. +C .. External Functions .. + logical lsame + integer isamax + real sdot,slamch + externallsame,isamax,sdot,slamch +C .. +C .. External Subroutines .. + externalsaxpy,slacon,slatbs,srscl,xerbla +C .. +C .. Executable Statements .. +C +C Multiply by inv(L). +C + do j= 1,n-1 +C the following min() intrinsic provokes this bug + lm= min(kl,n-j) + jp= ipiv(j) + t= work(jp) + if(jp.ne.j)then +C but only when combined with this if block + work(jp)= work(j) + work(j)= t + endif +C and this subroutine call + call saxpy(lm,-t,ab(kd+1,j),1,work(j+1),1) + enddo + return + end |