From 8ebec1a5dd8a729cf24ad3cc708d9193392e8451 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 12 Nov 2008 09:16:12 +0100 Subject: [PATCH] re PR target/35366 (gfortran.dg/equiv_7.f90 fails with -m64 -Os on powerpc-apple-darwin9) PR target/35366 * expr.c (expand_expr_addr_expr_1): If EXP needs bigger alignment than INNER and INNER is a constant, forcibly align INNER as much as needed. From-SVN: r141782 --- gcc/ChangeLog | 7 +++++++ gcc/expr.c | 10 ++++++++++ 2 files changed, 17 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 755b33b9a65..6bb36f5de6f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2008-11-12 Jakub Jelinek + + PR target/35366 + * expr.c (expand_expr_addr_expr_1): If EXP needs bigger alignment + than INNER and INNER is a constant, forcibly align INNER as much + as needed. + 2008-11-11 Richard Sandiford * cse.c (fold_rtx): Remove redundant gen_rtx_CONST. diff --git a/gcc/expr.c b/gcc/expr.c index 6db637e53bf..31af3aa9c49 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -6862,6 +6862,16 @@ expand_expr_addr_expr_1 (tree exp, rtx target, enum machine_mode tmode, gcc_assert (inner != exp); subtarget = offset || bitpos ? NULL_RTX : target; + /* For VIEW_CONVERT_EXPR, where the outer alignment is bigger than + inner alignment, force the inner to be sufficiently aligned. */ + if (CONSTANT_CLASS_P (inner) + && TYPE_ALIGN (TREE_TYPE (inner)) < TYPE_ALIGN (TREE_TYPE (exp))) + { + inner = copy_node (inner); + TREE_TYPE (inner) = copy_node (TREE_TYPE (inner)); + TYPE_ALIGN (TREE_TYPE (inner)) = TYPE_ALIGN (TREE_TYPE (exp)); + TYPE_USER_ALIGN (TREE_TYPE (inner)) = 1; + } result = expand_expr_addr_expr_1 (inner, subtarget, tmode, modifier); if (offset) -- 2.30.2