projects / packages / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| d09ee599 PS |
1 | This fixes the PR by making sure we fold "foo"[0] to 'f' |
| 2 | during fold_indirect_ref. | |
| 3 | ||
| 4 | PR tree-optimization/24172 | |
| 5 | * fold-const.c (fold_indirect_ref_1): Make sure we fold | |
| 6 | ARRAY_REFs of constant strings. | |
| 7 | ||
| 8 | * g++.dg/tree-ssa/pr24172.C: New testcase. | |
| 9 | ||
| 10 | ||
| 11 | *** gcc/gcc/fold-const.c 26 Sep 2005 01:28:38 -0000 1.626 | |
| 12 | --- gcc/gcc/fold-const.c 4 Oct 2005 10:59:06 -0000 | |
| 13 | *************** fold_indirect_ref_1 (tree type, tree op0 | |
| 14 | *** 11511,11519 **** | |
| 15 | { | |
| 16 | tree op = TREE_OPERAND (sub, 0); | |
| 17 | tree optype = TREE_TYPE (op); | |
| 18 | ! /* *&p => p */ | |
| 19 | if (type == optype) | |
| 20 | ! return op; | |
| 21 | /* *(foo *)&fooarray => fooarray[0] */ | |
| 22 | else if (TREE_CODE (optype) == ARRAY_TYPE | |
| 23 | && type == TREE_TYPE (optype)) | |
| 24 | --- 11511,11525 ---- | |
| 25 | { | |
| 26 | tree op = TREE_OPERAND (sub, 0); | |
| 27 | tree optype = TREE_TYPE (op); | |
| 28 | ! /* *&p => p; make sure to handle *&"str"[cst] here. */ | |
| 29 | if (type == optype) | |
| 30 | ! { | |
| 31 | ! tree fop = fold_read_from_constant_string (op); | |
| 32 | ! if (fop) | |
| 33 | ! return fop; | |
| 34 | ! else | |
| 35 | ! return op; | |
| 36 | ! } | |
| 37 | /* *(foo *)&fooarray => fooarray[0] */ | |
| 38 | else if (TREE_CODE (optype) == ARRAY_TYPE | |
| 39 | && type == TREE_TYPE (optype)) |