Smi-support for HSar.

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index 875f6082d7d87b9aa40b21ab21d5223759a3867e..1f1c90c51daf8e82dfbd1a5ca412e3bf9838f902 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -787,7 +787,9 @@ LInstruction* LChunkBuilder::DoShift(Token::Value op,
     constant_value = constant->Integer32Value() & 0x1f;
     // Left shifts can deoptimize if we shift by > 0 and the result cannot be
     // truncated to smi.
-    if (instr->representation().IsSmi() && constant_value > 0) {
+    if (instr->representation().IsSmi() &&
+        op == Token::SHL &&
+        constant_value > 0) {
       for (HUseIterator it(instr->uses()); !it.Done(); it.Advance()) {
         if (!it.value()->CheckFlag(HValue::kTruncatingToSmi)) {
           does_deopt = true;
@@ -806,7 +808,8 @@ LInstruction* LChunkBuilder::DoShift(Token::Value op,
       does_deopt = !instr->CheckFlag(HInstruction::kUint32);
     } else {
       for (HUseIterator it(instr->uses()); !it.Done(); it.Advance()) {
-        if (!it.value()->CheckFlag(HValue::kTruncatingToInt32)) {
+        if (!it.value()->CheckFlag(HValue::kTruncatingToInt32) &&
+            !it.value()->CheckFlag(HValue::kTruncatingToSmi)) {
           does_deopt = true;
           break;
         }