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Unified Diff: src/mips64/code-stubs-mips64.cc

Issue 1552473002: Revert of [runtime] Introduce dedicated JSBoundFunction to represent bound functions. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@FunctionConstructor
Patch Set: Created 5 years ago
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Index: src/mips64/code-stubs-mips64.cc
diff --git a/src/mips64/code-stubs-mips64.cc b/src/mips64/code-stubs-mips64.cc
index a9cd8f81f8097f3def6fe0bb8cde906f79bf61d1..1c7cecf90eb6313d82295cd536a3661a1c71d114 100644
--- a/src/mips64/code-stubs-mips64.cc
+++ b/src/mips64/code-stubs-mips64.cc
@@ -1474,6 +1474,15 @@
__ And(at, scratch, Operand(1 << Map::kHasNonInstancePrototype));
__ Branch(&slow_case, ne, at, Operand(zero_reg));
+ // Ensure that {function} is not bound.
+ Register const shared_info = scratch;
+ __ ld(shared_info,
+ FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset));
+ __ lbu(scratch,
+ FieldMemOperand(shared_info, SharedFunctionInfo::kBoundByteOffset));
+ __ And(at, scratch, Operand(1 << SharedFunctionInfo::kBoundBitWithinByte));
+ __ Branch(&slow_case, ne, at, Operand(zero_reg));
+
// Get the "prototype" (or initial map) of the {function}.
__ ld(function_prototype,
FieldMemOperand(function, JSFunction::kPrototypeOrInitialMapOffset));
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