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Unified Diff: src/mips/lithium-codegen-mips.cc

Issue 1108313003: Add HArrayBufferNotNeutered instruction (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: updates Created 5 years, 8 months ago
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Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index 4e1cd8140b859d40bd92f7981de5b9d0d05a04b3..0ba5e23ce984b6f2da9be285caa070cac734d7ee 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -5168,6 +5168,22 @@ void LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) {
}
+void LCodeGen::DoCheckArrayBufferNotNeutered(
+ LCheckArrayBufferNotNeutered* instr) {
+ Register view = ToRegister(instr->view());
+ Register scratch = scratch0();
+
+ Label has_no_buffer;
+ __ lw(scratch, FieldMemOperand(view, JSArrayBufferView::kBufferOffset));
+ __ JumpIfSmi(scratch, &has_no_buffer);
+ __ lw(scratch, FieldMemOperand(scratch, JSArrayBuffer::kBitFieldOffset));
+ __ And(at, scratch, 1 << JSArrayBuffer::WasNeutered::kShift);
+ DeoptimizeIf(ne, instr, Deoptimizer::kOutOfBounds);
+
+ __ bind(&has_no_buffer);
+}
+
+
void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) {
Register input = ToRegister(instr->value());
Register scratch = scratch0();

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