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| author | Richard Guenther <rguenther@suse.de> | 2009-04-28 15:27:09 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-04-28 15:27:09 +0000 |
| commit | e0dd989a1b6c9bd473ea875a2daad0af050279a3 (patch) | |
| tree | fa262efe84407fece3d549d15fd03850cbe16f8b | |
| parent | 9a17c91defe42bdd966dd30b33b171dd07f8cd00 (diff) | |
| download | gcc-e0dd989a1b6c9bd473ea875a2daad0af050279a3.zip gcc-e0dd989a1b6c9bd473ea875a2daad0af050279a3.tar.gz gcc-e0dd989a1b6c9bd473ea875a2daad0af050279a3.tar.bz2 | |
re PR middle-end/39937 (Revision 146831 failed SPEC CPU 2006)
2009-04-28 Richard Guenther <rguenther@suse.de>
PR middle-end/39937
* fold-const.c (fold_binary): Use distribute_real_division only
on float types.
* gfortran.fortran-torture/compile/pr39937.f: New testcase.
From-SVN: r146901
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/fold-const.c | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.fortran-torture/compile/pr39937.f | 28 |
4 files changed, 42 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 03815488..72766c4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-04-28 Richard Guenther <rguenther@suse.de> + + PR middle-end/39937 + * fold-const.c (fold_binary): Use distribute_real_division only + on float types. + 2009-04-28 Steve Ellcey <sje@cup.hp.com> * config.gcc (hppa*64*-*-hpux11*): Set use_gcc_stdint and diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 2b8f733..14b9f10 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -10102,7 +10102,7 @@ fold_binary (enum tree_code code, tree type, tree op0, tree op1) } } - if (flag_unsafe_math_optimizations + if (flag_unsafe_math_optimizations && (TREE_CODE (arg0) == RDIV_EXPR || TREE_CODE (arg0) == MULT_EXPR) && (TREE_CODE (arg1) == RDIV_EXPR || TREE_CODE (arg1) == MULT_EXPR) && (tem = distribute_real_division (code, type, arg0, arg1))) @@ -10542,7 +10542,8 @@ fold_binary (enum tree_code code, tree type, tree op0, tree op1) } } - if (flag_unsafe_math_optimizations + if (FLOAT_TYPE_P (type) + && flag_unsafe_math_optimizations && (TREE_CODE (arg0) == RDIV_EXPR || TREE_CODE (arg0) == MULT_EXPR) && (TREE_CODE (arg1) == RDIV_EXPR || TREE_CODE (arg1) == MULT_EXPR) && (tem = distribute_real_division (code, type, arg0, arg1))) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 5d22652..6c91769 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-04-28 Richard Guenther <rguenther@suse.de> + + PR middle-end/39937 + * gfortran.fortran-torture/compile/pr39937.f: New testcase. + 2009-04-28 H.J. Lu <hongjiu.lu@intel.com> g++.dg/warn/pr35652.C: Removed. 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 0000000..5ead135 --- /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 |