From 1e5de3bdcdb0c50f3f2cdba26b78c20529c775a3 Mon Sep 17 00:00:00 2001 From: rguenth Date: Tue, 28 Apr 2009 15:27:09 +0000 Subject: [PATCH] 2009-04-28 Richard Guenther 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146901 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 6 ++++ gcc/fold-const.c | 5 ++-- gcc/testsuite/ChangeLog | 5 ++++ .../compile/pr39937.f | 28 +++++++++++++++++++ 4 files changed, 42 insertions(+), 2 deletions(-) create mode 100644 gcc/testsuite/gfortran.fortran-torture/compile/pr39937.f diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0381548873ea..72766c4d85bc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-04-28 Richard Guenther + + PR middle-end/39937 + * fold-const.c (fold_binary): Use distribute_real_division only + on float types. + 2009-04-28 Steve Ellcey * config.gcc (hppa*64*-*-hpux11*): Set use_gcc_stdint and diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 2b8f7333182d..14b9f100b517 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 5d226524d07f..6c9176924612 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-04-28 Richard Guenther + + PR middle-end/39937 + * gfortran.fortran-torture/compile/pr39937.f: New testcase. + 2009-04-28 H.J. Lu 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 000000000000..5ead135d8070 --- /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 -- 2.47.2