From: alexandre.rames@arm.com <alexandre.rames@arm.com@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Fri, 21 Mar 2014 15:08:50 +0000 (+0000)
Subject: A64: Now that we have veneers, fix a couple of branches to directly jump to their... 
X-Git-Tag: upstream/4.7.83~10082
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=759bf42858c71880e7e64af2836002b0edb80eec;p=platform%2Fupstream%2Fv8.git

A64: Now that we have veneers, fix a couple of branches to directly jump to their target.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/207883002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20169 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/arm64/regexp-macro-assembler-arm64.cc b/src/arm64/regexp-macro-assembler-arm64.cc
index 536580a..490facd 100644
--- a/src/arm64/regexp-macro-assembler-arm64.cc
+++ b/src/arm64/regexp-macro-assembler-arm64.cc
@@ -1481,12 +1481,7 @@ void RegExpMacroAssemblerARM64::BranchOrBacktrack(Condition condition,
   if (to == NULL) {
     to = &backtrack_label_;
   }
-  // TODO(ulan): do direct jump when jump distance is known and fits in imm19.
-  Condition inverted_condition = InvertCondition(condition);
-  Label no_branch;
-  __ B(inverted_condition, &no_branch);
-  __ B(to);
-  __ Bind(&no_branch);
+  __ B(condition, to);
 }
 
 void RegExpMacroAssemblerARM64::CompareAndBranchOrBacktrack(Register reg,
@@ -1497,15 +1492,11 @@ void RegExpMacroAssemblerARM64::CompareAndBranchOrBacktrack(Register reg,
     if (to == NULL) {
       to = &backtrack_label_;
     }
-    // TODO(ulan): do direct jump when jump distance is known and fits in imm19.
-    Label no_branch;
     if (condition == eq) {
-      __ Cbnz(reg, &no_branch);
+      __ Cbz(reg, to);
     } else {
-      __ Cbz(reg, &no_branch);
+      __ Cbnz(reg, to);
     }
-    __ B(to);
-    __ Bind(&no_branch);
   } else {
     __ Cmp(reg, immediate);
     BranchOrBacktrack(condition, to);