diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-loop-prefetch.c | 16 |
2 files changed, 18 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e4dbeb6..9bca90e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-07-21 Changpeng Fang <changpeng.fang@amd.com> + + * tree-ssa-loop-prefetch.c (analyze_ref): Strip off the real + and imagine parts of a complex, so that they can have the same + base and fall into the same group. + 2010-07-21 Richard Guenther <rguenther@suse.de> PR lto/45018 diff --git a/gcc/tree-ssa-loop-prefetch.c b/gcc/tree-ssa-loop-prefetch.c index 1932d05..4840704 100644 --- a/gcc/tree-ssa-loop-prefetch.c +++ b/gcc/tree-ssa-loop-prefetch.c @@ -486,10 +486,18 @@ analyze_ref (struct loop *loop, tree *ref_p, tree *base, *step = NULL_TREE; *delta = 0; - /* First strip off the component references. Ignore bitfields. */ - if (TREE_CODE (ref) == COMPONENT_REF - && DECL_NONADDRESSABLE_P (TREE_OPERAND (ref, 1))) - ref = TREE_OPERAND (ref, 0); + /* First strip off the component references. Ignore bitfields. + Also strip off the real and imagine parts of a complex, so that + they can have the same base. */ + if (TREE_CODE (ref) == REALPART_EXPR + || TREE_CODE (ref) == IMAGPART_EXPR + || (TREE_CODE (ref) == COMPONENT_REF + && DECL_NONADDRESSABLE_P (TREE_OPERAND (ref, 1)))) + { + if (TREE_CODE (ref) == IMAGPART_EXPR) + *delta += int_size_in_bytes (TREE_TYPE (ref)); + ref = TREE_OPERAND (ref, 0); + } *ref_p = ref; |