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| author | Ian Lance Taylor <iant@golang.org> | 2021-03-11 16:12:22 -0800 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2021-03-11 16:12:22 -0800 |
| commit | bc636c218f2b28da06cd1404d5b35d1f8cc43fd1 (patch) | |
| tree | 764937d8460563db6132d7c75e19b95ef3ea6ea8 /gcc/expr.c | |
| parent | 89d7be42db00cd0953e7d4584877cf50a56ed046 (diff) | |
| parent | 7ad5a72c8bc6aa71a0d195ddfa207db01265fe0b (diff) | |
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Merge from trunk revision 7ad5a72c8bc6aa71a0d195ddfa207db01265fe0b.
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -7214,7 +7214,13 @@ store_field (rtx target, poly_int64 bitsize, poly_int64 bitpos, || !multiple_p (bitpos, BITS_PER_UNIT) || !poly_int_tree_p (DECL_SIZE (TREE_OPERAND (exp, 1)), &decl_bitsize) - || maybe_ne (decl_bitsize, bitsize))) + || maybe_ne (decl_bitsize, bitsize)) + /* A call with an addressable return type and return-slot + optimization must not need bitfield operations but we must + pass down the original target. */ + && (TREE_CODE (exp) != CALL_EXPR + || !TREE_ADDRESSABLE (TREE_TYPE (exp)) + || !CALL_EXPR_RETURN_SLOT_OPT (exp))) /* If we are expanding a MEM_REF of a non-BLKmode non-addressable decl we must use bitfield operations. */ || (known_size_p (bitsize) |