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authorRong Xu <xur@google.com>2014-07-21 16:47:22 -0700
committerRong Xu <xur@google.com>2014-07-29 15:31:03 -0700
commit38a8aecfb882072900434499696b5c32a2274515 (patch)
tree2aac97f0ae24b03cd98c1a06e989c031c173f889 /gcc-4.9/gcc/cfghooks.c
parentc231900e5dcc14d8296bd9f62b45997a49d4d5e7 (diff)
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[4.9] Switch gcc-4.9 to use google/gcc-4_9 branch.
This source drop uses svn version r212828 of google/gcc-4.9 branch. We also cherry-picked r213062, r213063 and r213064 to fix windows build issues. All gcc-4.9 patches before July 3rd are ported to google/gcc-4.9. The following prior commits has not been merged to google branch yet. (They are included in this commit). e7af147f979e657fe2df00808e5b4319b0e088c6, baf87df3cb2683649ba7e9872362a7e721117c23, and c231900e5dcc14d8296bd9f62b45997a49d4d5e7. Change-Id: I4bea3ea470387ff751c2be4cb0d4a12059b9299b
Diffstat (limited to 'gcc-4.9/gcc/cfghooks.c')
-rw-r--r--gcc-4.9/gcc/cfghooks.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/gcc-4.9/gcc/cfghooks.c b/gcc-4.9/gcc/cfghooks.c
index bc1634aac..87da0d02a 100644
--- a/gcc-4.9/gcc/cfghooks.c
+++ b/gcc-4.9/gcc/cfghooks.c
@@ -500,7 +500,6 @@ split_block (basic_block bb, void *i)
new_bb->count = bb->count;
new_bb->frequency = bb->frequency;
- new_bb->discriminator = bb->discriminator;
if (dom_info_available_p (CDI_DOMINATORS))
{
@@ -833,6 +832,9 @@ make_forwarder_block (basic_block bb, bool (*redirect_edge_p) (edge),
fallthru = split_block_after_labels (bb);
dummy = fallthru->src;
+ dummy->count = 0;
+ dummy->frequency = 0;
+ fallthru->count = 0;
bb = fallthru->dest;
/* Redirect back edges we want to keep. */
@@ -842,20 +844,13 @@ make_forwarder_block (basic_block bb, bool (*redirect_edge_p) (edge),
if (redirect_edge_p (e))
{
+ dummy->frequency += EDGE_FREQUENCY (e);
+ dummy->count += e->count;
+ fallthru->count += e->count;
ei_next (&ei);
continue;
}
- dummy->frequency -= EDGE_FREQUENCY (e);
- dummy->count -= e->count;
- if (dummy->frequency < 0)
- dummy->frequency = 0;
- if (dummy->count < 0)
- dummy->count = 0;
- fallthru->count -= e->count;
- if (fallthru->count < 0)
- fallthru->count = 0;
-
e_src = e->src;
jump = redirect_edge_and_branch_force (e, bb);
if (jump != NULL)