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

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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
This commit is contained in:
alexandre.rames@arm.com 2014-03-21 15:08:50 +00:00
parent 04a418c550
commit 759bf42858
1 changed files with 3 additions and 12 deletions
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15
src/arm64/regexp-macro-assembler-arm64.cc
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@ -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);