A64 support for DoubleToIStub (truncating).

test/cctest/test-code-stubs.cc

Index: test/cctest/test-code-stubs.cc
diff --git a/test/cctest/test-code-stubs.cc b/test/cctest/test-code-stubs.cc
index db00e9ac5a9f6980825c4a619e2de5b6614f2e6c..999febf777e6fd43e62aeb6d7ccd626b567b0e4d 100644
--- a/test/cctest/test-code-stubs.cc
+++ b/test/cctest/test-code-stubs.cc
@@ -49,6 +49,9 @@ int STDCALL ConvertDToICVersion(double d) {
   int32_t exponent = (((exponent_bits & shifted_mask) >>
                        (Double::kPhysicalSignificandSize - 32)) -
                       HeapNumber::kExponentBias);
+  if (exponent < 0) {
+    return 0;
+  }
   uint32_t unsigned_exponent = static_cast<uint32_t>(exponent);
   int result = 0;
   uint32_t max_exponent =
@@ -113,10 +116,27 @@ void RunAllTruncationTests(ConvertDToICallWrapper callWrapper,
   RunOneTruncationTest(Infinity, 0);
   RunOneTruncationTest(-NaN, 0);
   RunOneTruncationTest(-Infinity, 0);
-
-  RunOneTruncationTest(4.5036e+15, 0x1635E000);
+  RunOneTruncationTest(4.94065645841e-324, 0);
+  RunOneTruncationTest(-4.94065645841e-324, 0);
+
+  RunOneTruncationTest(0.9999999999999999, 0);
+  RunOneTruncationTest(-0.9999999999999999, 0);
+  RunOneTruncationTest(4294967296.0, 0);
+  RunOneTruncationTest(-4294967296.0, 0);
+  RunOneTruncationTest(9223372036854775000.0, 4294966272.0);
+  RunOneTruncationTest(-9223372036854775000.0, -4294966272.0);
+  RunOneTruncationTest(4.5036e+15, 372629504);
   RunOneTruncationTest(-4.5036e+15, -372629504);
 
+  RunOneTruncationTest(287524199.5377777, 0x11234567);
+  RunOneTruncationTest(-287524199.5377777, -0x11234567);
+  RunOneTruncationTest(2300193596.302222, 2300193596.0);
+  RunOneTruncationTest(-2300193596.302222, -2300193596.0);
+  RunOneTruncationTest(4600387192.604444, 305419896);
+  RunOneTruncationTest(-4600387192.604444, -305419896);
+  RunOneTruncationTest(4823855600872397.0, 1737075661);
+  RunOneTruncationTest(-4823855600872397.0, -1737075661);
+
   RunOneTruncationTest(4503603922337791.0, -1);
   RunOneTruncationTest(-4503603922337791.0, 1);
   RunOneTruncationTest(4503601774854143.0, 2147483647);
@@ -134,10 +154,19 @@ void RunAllTruncationTests(ConvertDToICallWrapper callWrapper,
   RunOneTruncationTest(4.8357078901445341e+24, -1073741824);
   RunOneTruncationTest(-4.8357078901445341e+24, 1073741824);
 
+  RunOneTruncationTest(2147483647.0, 2147483647.0);
+  RunOneTruncationTest(-2147483648.0, -2147483648.0);
   RunOneTruncationTest(9.6714111686030497e+24, -2147483648.0);
   RunOneTruncationTest(-9.6714111686030497e+24, -2147483648.0);
   RunOneTruncationTest(9.6714157802890681e+24, -2147483648.0);
   RunOneTruncationTest(-9.6714157802890681e+24, -2147483648.0);
+  RunOneTruncationTest(1.9342813113834065e+25, 2147483648.0);
+  RunOneTruncationTest(-1.9342813113834065e+25, 2147483648.0);
+
+  RunOneTruncationTest(3.868562622766813e+25, 0);
+  RunOneTruncationTest(-3.868562622766813e+25, 0);
+  RunOneTruncationTest(1.7976931348623157e+308, 0);
+  RunOneTruncationTest(-1.7976931348623157e+308, 0);
 }
 
 #undef NaN