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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-07-26 19:45:11 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-07-26 19:45:11 -0400 |
| commit | ad2e7dd004513e4877bf837f4113815ada04c7f0 (patch) | |
| tree | 797513b44652024533be4b703d8e923b03306bbf | |
| parent | ee7204ee5524237c31037d427422137a349cb253 (diff) | |
| download | gcc-ad2e7dd004513e4877bf837f4113815ada04c7f0.zip gcc-ad2e7dd004513e4877bf837f4113815ada04c7f0.tar.gz gcc-ad2e7dd004513e4877bf837f4113815ada04c7f0.tar.bz2 | |
(expand_expr, case ARRAY_REF): Don't fold L"foo"[2].
From-SVN: r7797
| -rw-r--r-- | gcc/expr.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -4340,13 +4340,16 @@ expand_expr (exp, target, tmode, modifier) } /* Fold an expression like: "foo"[2]. - This is not done in fold so it won't happen inside &. */ + This is not done in fold so it won't happen inside &. + Don't fold if this is for wide characters since it's too + difficult to do correctly and this is a very rare case. */ if (TREE_CODE (array) == STRING_CST && TREE_CODE (index) == INTEGER_CST && !TREE_INT_CST_HIGH (index) && (i = TREE_INT_CST_LOW (index)) < TREE_STRING_LENGTH (array) - && GET_MODE_CLASS (mode) == MODE_INT) + && GET_MODE_CLASS (mode) == MODE_INT + && GET_MODE_SIZE (mode) == 1) return GEN_INT (TREE_STRING_POINTER (array)[i]); /* If this is a constant index into a constant array, |