[v8-dev] ARM: Make double registers low/high safe

test/cctest/test-assembler-arm.cc

Index: test/cctest/test-assembler-arm.cc
diff --git a/test/cctest/test-assembler-arm.cc b/test/cctest/test-assembler-arm.cc
index c79e74019ec0eeacaed2b3c219310777eda97de4..cb677b3bb6b99c43082b728ca7a0055e0f9d175c 100644
--- a/test/cctest/test-assembler-arm.cc
+++ b/test/cctest/test-assembler-arm.cc
@@ -1049,6 +1049,8 @@ TEST(13) {
     double i;
     double j;
     double k;
+    uint32_t low;
+    uint32_t high;
   } T;
   T t;
 
@@ -1113,6 +1115,11 @@ TEST(13) {
     __ vmov(d22, VmovIndexHi, r2);
     __ add(r4, r0, Operand(OFFSET_OF(T, i)));
     __ vstm(ia_w, r4, d20, d22);
+    // Move d22 into low and high.
+    __ vmov(r4, VmovIndexLo, d22);
+    __ str(r4, MemOperand(r0, OFFSET_OF(T, low)));
+    __ vmov(r4, VmovIndexHi, d22);
+    __ str(r4, MemOperand(r0, OFFSET_OF(T, high)));
 
     __ ldm(ia_w, sp, r4.bit() | pc.bit());
 
@@ -1144,6 +1151,8 @@ TEST(13) {
     CHECK_EQ(14.7610017472335499, t.i);
     CHECK_EQ(16.0, t.j);
     CHECK_EQ(73.8818412254460241, t.k);
+    CHECK_EQ(372106121, t.low);
+    CHECK_EQ(1079146608, t.high);
   }
 }