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| author | Ulrich Weigand <uweigand@de.ibm.com> | 2009-11-17 16:21:56 +0000 |
|---|---|---|
| committer | Ulrich Weigand <uweigand@gcc.gnu.org> | 2009-11-17 16:21:56 +0000 |
| commit | 5456cefc68db903dcb308729a3d68f619c703660 (patch) | |
| tree | ec58d132d92e5296133cf29f71a6fb3fd0d19c9c | |
| parent | 263839d33b9fc3c1145b70c957ed733765661381 (diff) | |
| download | gcc-5456cefc68db903dcb308729a3d68f619c703660.zip gcc-5456cefc68db903dcb308729a3d68f619c703660.tar.gz gcc-5456cefc68db903dcb308729a3d68f619c703660.tar.bz2 | |
re PR tree-optimization/41857 (Loop optimizer breaks __ea pointers with -mea64)
PR tree-optimization/41857
* tree-ssa-address.c (move_hint_to_base): Use void pointer to
TYPE's address space instead of pointer to TYPE.
From-SVN: r154255
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-address.c | 8 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 58ce8e4..7ca1972 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2009-11-17 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> + PR tree-optimization/41857 + * tree-ssa-address.c (move_hint_to_base): Use void pointer to + TYPE's address space instead of pointer to TYPE. + +2009-11-17 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> + * reload.c (find_reloads_address): Fix typo. 2009-11-17 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> diff --git a/gcc/tree-ssa-address.c b/gcc/tree-ssa-address.c index 37bce5e..d96b66b 100644 --- a/gcc/tree-ssa-address.c +++ b/gcc/tree-ssa-address.c @@ -400,6 +400,7 @@ move_hint_to_base (tree type, struct mem_address *parts, tree base_hint, { unsigned i; tree val = NULL_TREE; + int qual; for (i = 0; i < addr->n; i++) { @@ -414,7 +415,12 @@ move_hint_to_base (tree type, struct mem_address *parts, tree base_hint, if (i == addr->n) return; - /* Cast value to appropriate pointer type. */ + /* Cast value to appropriate pointer type. We cannot use a pointer + to TYPE directly, as the back-end will assume registers of pointer + type are aligned, and just the base itself may not actually be. + We use void pointer to the type's address space instead. */ + qual = ENCODE_QUAL_ADDR_SPACE (TYPE_ADDR_SPACE (type)); + type = build_qualified_type (void_type_node, qual); parts->base = fold_convert (build_pointer_type (type), val); aff_combination_remove_elt (addr, i); } |