X87: [turbofan] Fix calls to computed code objects.

src/compiler/x87/code-generator-x87.cc

Index: src/compiler/x87/code-generator-x87.cc
diff --git a/src/compiler/x87/code-generator-x87.cc b/src/compiler/x87/code-generator-x87.cc
index 9ca9a3076f832d8f6e038ee0c7ab7bed4a87dbb2..0bf338375eb410a80dfbb707ee6b1162d6a438b7 100644
--- a/src/compiler/x87/code-generator-x87.cc
+++ b/src/compiler/x87/code-generator-x87.cc
@@ -312,7 +312,8 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
         __ call(code, RelocInfo::CODE_TARGET);
       } else {
         Register reg = i.InputRegister(0);
-        __ call(Operand(reg, Code::kHeaderSize - kHeapObjectTag));
+        __ add(reg, Immediate(Code::kHeaderSize - kHeapObjectTag));
+        __ call(reg);
       }
       RecordCallPosition(instr);
       bool double_result =