From 7c6dafac644607278e21080f8a3e2ff79c3130aa Mon Sep 17 00:00:00 2001 From: Changpeng Fang Date: Wed, 21 Jul 2010 15:44:24 +0000 Subject: [PATCH] Fix PR 44955: Strip off the real and complex parts. 2010-07-21 Changpeng Fang PR tree-optimization/44955 * 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. From-SVN: r162381 --- gcc/ChangeLog | 6 ++++++ gcc/tree-ssa-loop-prefetch.c | 16 ++++++++++++---- 2 files changed, 18 insertions(+), 4 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e4dbeb6a75a..9bca90e4734 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-07-21 Changpeng Fang + + * 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 PR lto/45018 diff --git a/gcc/tree-ssa-loop-prefetch.c b/gcc/tree-ssa-loop-prefetch.c index 1932d05c366..4840704be19 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; -- 2.30.2