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/test/cctest/test-disasm-arm.cc b/test/cctest/test-disasm-arm.cc
index c1f6ce2..095c636 100644
--- a/test/cctest/test-disasm-arm.cc
+++ b/test/cctest/test-disasm-arm.cc
@@ -410,16 +410,40 @@
             "e6843895       pkhbt r3, r4, r5, lsl #17");
     COMPARE(pkhtb(r3, r4, Operand(r5, ASR, 17)),
             "e68438d5       pkhtb r3, r4, r5, asr #17");
-    COMPARE(uxtb(r9, Operand(r10, ROR, 0)),
-            "e6ef907a       uxtb r9, r10");
-    COMPARE(uxtb(r3, Operand(r4, ROR, 8)),
-            "e6ef3474       uxtb r3, r4, ror #8");
-    COMPARE(uxtab(r3, r4, Operand(r5, ROR, 8)),
-            "e6e43475       uxtab r3, r4, r5, ror #8");
-    COMPARE(uxtb16(r3, Operand(r4, ROR, 8)),
-            "e6cf3474       uxtb16 r3, r4, ror #8");
+
+    COMPARE(sxtb(r1, r7, 0, eq), "06af1077       sxtbeq r1, r7");
+    COMPARE(sxtb(r0, r0, 8, ne), "16af0470       sxtbne r0, r0, ror #8");
+    COMPARE(sxtb(r9, r10, 16), "e6af987a       sxtb r9, r10, ror #16");
+    COMPARE(sxtb(r4, r3, 24), "e6af4c73       sxtb r4, r3, ror #24");
+
+    COMPARE(sxtab(r3, r4, r5), "e6a43075       sxtab r3, r4, r5");
+
+    COMPARE(sxth(r5, r0), "e6bf5070       sxth r5, r0");
+    COMPARE(sxth(r5, r9, 8), "e6bf5479       sxth r5, r9, ror #8");
+    COMPARE(sxth(r5, r9, 16, hi), "86bf5879       sxthhi r5, r9, ror #16");
+    COMPARE(sxth(r8, r9, 24, cc), "36bf8c79       sxthcc r8, r9, ror #24");
+
+    COMPARE(sxtah(r3, r4, r5, 16), "e6b43875       sxtah r3, r4, r5, ror #16");
+
+    COMPARE(uxtb(r9, r10), "e6ef907a       uxtb r9, r10");
+    COMPARE(uxtb(r3, r4, 8), "e6ef3474       uxtb r3, r4, ror #8");
+
+    COMPARE(uxtab(r3, r4, r5, 8), "e6e43475       uxtab r3, r4, r5, ror #8");
+
+    COMPARE(uxtb16(r3, r4, 8), "e6cf3474       uxtb16 r3, r4, ror #8");
+
+    COMPARE(uxth(r9, r10), "e6ff907a       uxth r9, r10");
+    COMPARE(uxth(r3, r4, 8), "e6ff3474       uxth r3, r4, ror #8");
+
+    COMPARE(uxtah(r3, r4, r5, 24), "e6f43c75       uxtah r3, r4, r5, ror #24");
   }
 
+  COMPARE(smmla(r0, r1, r2, r3), "e7503211       smmla r0, r1, r2, r3");
+  COMPARE(smmla(r10, r9, r8, r7), "e75a7819       smmla r10, r9, r8, r7");
+
+  COMPARE(smmul(r0, r1, r2), "e750f211       smmul r0, r1, r2");
+  COMPARE(smmul(r8, r9, r10), "e758fa19       smmul r8, r9, r10");
+
   VERIFY_RUN();
 }
 
@@ -680,6 +704,30 @@
 }
 
 
+TEST(ARMv8_vrintX_disasm) {
+  SET_UP();
+
+  if (CpuFeatures::IsSupported(ARMv8)) {
+    COMPARE(vrinta(d0, d0), "feb80b40       vrinta.f64.f64 d0, d0");
+    COMPARE(vrinta(d2, d3), "feb82b43       vrinta.f64.f64 d2, d3");
+
+    COMPARE(vrintp(d0, d0), "feba0b40       vrintp.f64.f64 d0, d0");
+    COMPARE(vrintp(d2, d3), "feba2b43       vrintp.f64.f64 d2, d3");
+
+    COMPARE(vrintn(d0, d0), "feb90b40       vrintn.f64.f64 d0, d0");
+    COMPARE(vrintn(d2, d3), "feb92b43       vrintn.f64.f64 d2, d3");
+
+    COMPARE(vrintm(d0, d0), "febb0b40       vrintm.f64.f64 d0, d0");
+    COMPARE(vrintm(d2, d3), "febb2b43       vrintm.f64.f64 d2, d3");
+
+    COMPARE(vrintz(d0, d0), "eeb60bc0       vrintz.f64.f64 d0, d0");
+    COMPARE(vrintz(d2, d3, ne), "1eb62bc3       vrintzne.f64.f64 d2, d3");
+  }
+
+  VERIFY_RUN();
+}
+
+
 TEST(Neon) {
   SET_UP();