MIPS: With >= 64 non-string instance types, I removed an optimization that allowed us to detect int…

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 95eafaedb38cd3124308b6dceff6b3f34cf40934..c3eda6559ef7c59685dada596805cbdd6e0d0fe6 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -3209,9 +3209,13 @@ void MacroAssembler::AllocateAsciiSlicedString(Register result,
 
 void MacroAssembler::JumpIfNotUniqueName(Register reg,
                                          Label* not_unique_name) {
-  STATIC_ASSERT(((SYMBOL_TYPE - 1) & kIsInternalizedMask) == kInternalizedTag);
-  Branch(not_unique_name, lt, reg, Operand(kIsInternalizedMask));
-  Branch(not_unique_name, gt, reg, Operand(SYMBOL_TYPE));
+  STATIC_ASSERT(kInternalizedTag == 0 && kStringTag == 0);
+  Label succeed;
+  And(at, reg, Operand(kIsNotStringMask | kIsNotInternalizedMask));
+  Branch(&succeed, eq, at, Operand(zero_reg));
+  Branch(not_unique_name, ne, reg, Operand(SYMBOL_TYPE));
+
+  bind(&succeed);
 }