Update V8 to version 4.1.0.21
This is a cherry-pick of all commits up to and including the
4.1.0.21 cherry-pick in Chromium.
Original commit message:
Version 4.1.0.21 (cherry-pick)
Merged 206e9136bde0f2b5ae8cb77afbb1e7833e5bd412
Unlink pages from the space page list after evacuation.
BUG=430201
LOG=N
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/953813002
Cr-Commit-Position: refs/branch-heads/4.1@{#22}
Cr-Branched-From: 2e08d2a7aa9d65d269d8c57aba82eb38a8cb0a18-refs/heads/candidates@{#25353}
---
FPIIM-449
Change-Id: I8c23c7bbb70772b4858fe8a47b64fa97ee0d1f8c
diff --git a/src/ia32/codegen-ia32.cc b/src/ia32/codegen-ia32.cc
index 52cf72b..083f5db 100644
--- a/src/ia32/codegen-ia32.cc
+++ b/src/ia32/codegen-ia32.cc
@@ -720,6 +720,19 @@
__ mov(FieldOperand(eax, FixedArray::kLengthOffset), ebx);
__ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
+ // Allocating heap numbers in the loop below can fail and cause a jump to
+ // gc_required. We can't leave a partly initialized FixedArray behind,
+ // so pessimistically fill it with holes now.
+ Label initialization_loop, initialization_loop_entry;
+ __ jmp(&initialization_loop_entry, Label::kNear);
+ __ bind(&initialization_loop);
+ __ mov(FieldOperand(eax, ebx, times_2, FixedArray::kHeaderSize),
+ masm->isolate()->factory()->the_hole_value());
+ __ bind(&initialization_loop_entry);
+ __ sub(ebx, Immediate(Smi::FromInt(1)));
+ __ j(not_sign, &initialization_loop);
+
+ __ mov(ebx, FieldOperand(edi, FixedDoubleArray::kLengthOffset));
__ jmp(&entry);
// ebx: target map