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| author | Bernd Edlinger <bernd.edlinger@hotmail.de> | 2019-08-28 10:18:23 +0000 |
|---|---|---|
| committer | Bernd Edlinger <edlinger@gcc.gnu.org> | 2019-08-28 10:18:23 +0000 |
| commit | 70cdb21e579191fe9f0f1d45e328908e59c0179e (patch) | |
| tree | 87bd6c87d5f7ac587e7732bc7828111ec593e9ed /gcc/expr.c | |
| parent | e62506f36294bc26b9a64bcfd2464464ef784b72 (diff) | |
| download | gcc-70cdb21e579191fe9f0f1d45e328908e59c0179e.zip gcc-70cdb21e579191fe9f0f1d45e328908e59c0179e.tar.gz gcc-70cdb21e579191fe9f0f1d45e328908e59c0179e.tar.bz2 | |
expr.c (expand_assignment): Handle misaligned DECLs.
2019-09-28 Bernd Edlinger <bernd.edlinger@hotmail.de>
Richard Biener <rguenther@suse.de>
* expr.c (expand_assignment): Handle misaligned DECLs.
(expand_expr_real_1): Handle FUNCTION_DECL as unaligned.
* function.c (assign_parm_adjust_stack_rtl): Check movmisalign optab
too.
(assign_parm_setup_stack): Allocate properly aligned stack slots.
* varasm.c (build_constant_desc): Align constants of misaligned types.
* config/arm/predicates.md (aligned_operand): New predicate.
* config/arm/arm.md (movdi, movsi, movhi, movhf, movsf, movdf): Use
aligned_operand to check restrictions on memory addresses.
* config/arm/neon.md (movti, mov<VSTRUCT>, mov<VH>): Likewise.
* config/arm/vec-common.md (mov<VALL>): Likewise.
Co-Authored-By: Richard Biener <rguenther@suse.de>
From-SVN: r274986
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 13 |
1 files changed, 11 insertions, 2 deletions
@@ -5001,9 +5001,10 @@ expand_assignment (tree to, tree from, bool nontemporal) /* Handle misaligned stores. */ mode = TYPE_MODE (TREE_TYPE (to)); if ((TREE_CODE (to) == MEM_REF - || TREE_CODE (to) == TARGET_MEM_REF) + || TREE_CODE (to) == TARGET_MEM_REF + || DECL_P (to)) && mode != BLKmode - && !mem_ref_refers_to_non_mem_p (to) + && (DECL_P (to) || !mem_ref_refers_to_non_mem_p (to)) && ((align = get_object_alignment (to)) < GET_MODE_ALIGNMENT (mode)) && (((icode = optab_handler (movmisalign_optab, mode)) @@ -10795,6 +10796,14 @@ expand_expr_real_1 (tree exp, rtx target, machine_mode tmode, MEM_VOLATILE_P (op0) = 1; } + if (MEM_P (op0) && TREE_CODE (tem) == FUNCTION_DECL) + { + if (op0 == orig_op0) + op0 = copy_rtx (op0); + + set_mem_align (op0, BITS_PER_UNIT); + } + /* In cases where an aligned union has an unaligned object as a field, we might be extracting a BLKmode value from an integer-mode (e.g., SImode) object. Handle this case |