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PPC: [regexp] correctly advance zero length matches for global/unicode.

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Port  57d202d879

R=yangguo@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:2952
LOG=N

Review URL: https://codereview.chromium.org/1646613002

Cr-Commit-Position: refs/heads/master@{#33566}
This commit is contained in:
mbrandy 2016-01-27 13:07:03 -08:00 committed by Commit bot
parent 73aea9c13f
commit 510f4a9b8f
1 changed files with 3 additions and 0 deletions
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3
src/regexp/ppc/regexp-macro-assembler-ppc.cc
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@ -851,8 +851,11 @@ Handle<HeapObject> RegExpMacroAssemblerPPC::GetCode(Handle<String> source) {
__ cmpi(current_input_offset(), Operand::Zero());
__ beq(&exit_label_);
// Advance current position after a zero-length match.
Label advance;
__ bind(&advance);
__ addi(current_input_offset(), current_input_offset(),
Operand((mode_ == UC16) ? 2 : 1));
if (global_unicode()) CheckNotInSurrogatePair(0, &advance);
}
__ b(&load_char_start_regexp);