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| author | spark <spark@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-05-28 20:15:10 +0000 |
|---|---|---|
| committer | spark <spark@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-05-28 20:15:10 +0000 |
| commit | 69eee21db577b8a270fae4da3cc5f8686ca93057 (patch) | |
| tree | eec1f0a98236b0cc50a93f03ae95201e815b992a /gcc/value-prof.c | |
| parent | e8a6d961f10be0350c17bfc3cd7e843c6d444812 (diff) | |
| download | gcc-69eee21db577b8a270fae4da3cc5f8686ca93057.tar.gz | |
2008-05-28 Seongbae Park <seongbae.park@gmail.com>
* tree-ssa-propagate.c (set_rhs): Preserve the histogram
and the eh region information.
* value-prof.c (gimple_move_stmt_histograms): New function.
* value-prof.h (gimple_move_stmt_histograms): New function declaration.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@136124 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/value-prof.c')
| -rw-r--r-- | gcc/value-prof.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/value-prof.c b/gcc/value-prof.c index 8b0087a850f..61b0a0773a2 100644 --- a/gcc/value-prof.c +++ b/gcc/value-prof.c @@ -336,6 +336,25 @@ gimple_duplicate_stmt_histograms (struct function *fun, tree stmt, } } + +/* Move all histograms associated with OSTMT to STMT. */ + +void +gimple_move_stmt_histograms (struct function *fun, tree stmt, tree ostmt) +{ + histogram_value val = gimple_histogram_value (fun, ostmt); + if (val) + { + /* The following three statements can't be reordered, + because histogram hashtab relies on stmt field value + for finding the exact slot. */ + set_histogram_value (fun, ostmt, NULL); + for (; val != NULL; val = val->hvalue.next) + val->hvalue.stmt = stmt; + set_histogram_value (fun, stmt, val); + } +} + static bool error_found = false; /* Helper function for verify_histograms. For each histogram reachable via htab |