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Unified Diff: src/ppc/code-stubs-ppc.cc

Issue 2626893005: Revert of Internalize strings in-place (Closed)
Patch Set: rebased Created 3 years, 11 months ago
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Index: src/ppc/code-stubs-ppc.cc
diff --git a/src/ppc/code-stubs-ppc.cc b/src/ppc/code-stubs-ppc.cc
index 1f527331093543d116083035cc2997266a53cbfd..2e401ea8805bd063baea37ac47d447ee3fbb0e2b 100644
--- a/src/ppc/code-stubs-ppc.cc
+++ b/src/ppc/code-stubs-ppc.cc
@@ -1374,7 +1374,7 @@ void RegExpExecStub::Generate(MacroAssembler* masm) {
// (6) External string. Make it, offset-wise, look like a sequential string.
// Go to (4).
// (7) Short external string or not a string? If yes, bail out to runtime.
- // (8) Sliced or thin string. Replace subject with parent. Go to (1).
+ // (8) Sliced string. Replace subject with parent. Go to (1).
Label seq_string /* 4 */, external_string /* 6 */, check_underlying /* 1 */,
not_seq_nor_cons /* 5 */, not_long_external /* 7 */;
@@ -1395,7 +1395,6 @@ void RegExpExecStub::Generate(MacroAssembler* masm) {
// (2) Sequential or cons? If not, go to (5).
STATIC_ASSERT(kConsStringTag < kExternalStringTag);
STATIC_ASSERT(kSlicedStringTag > kExternalStringTag);
- STATIC_ASSERT(kThinStringTag > kExternalStringTag);
STATIC_ASSERT(kIsNotStringMask > kExternalStringTag);
STATIC_ASSERT(kShortExternalStringTag > kExternalStringTag);
STATIC_ASSERT(kExternalStringTag < 0xffffu);
@@ -1672,19 +1671,12 @@ void RegExpExecStub::Generate(MacroAssembler* masm) {
__ andi(r0, r4, Operand(kIsNotStringMask | kShortExternalStringMask));
__ bne(&runtime, cr0);
- // (8) Sliced or thin string. Replace subject with parent. Go to (4).
- Label thin_string;
- __ cmpi(r4, Operand(kThinStringTag));
- __ beq(&thin_string);
+ // (8) Sliced string. Replace subject with parent. Go to (4).
// Load offset into r11 and replace subject string with parent.
__ LoadP(r11, FieldMemOperand(subject, SlicedString::kOffsetOffset));
__ SmiUntag(r11);
__ LoadP(subject, FieldMemOperand(subject, SlicedString::kParentOffset));
__ b(&check_underlying); // Go to (4).
-
- __ bind(&thin_string);
- __ LoadP(subject, FieldMemOperand(subject, ThinString::kActualOffset));
- __ b(&check_underlying); // Go to (4).
#endif // V8_INTERPRETED_REGEXP
}
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