S390: Platform specific includes in common files

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index c11882405a25dd93bfcf9fcf0677c4e3bba00b99..ff5816b21e59cc2390ba8d020e4b42866a7ff730 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -77,6 +77,8 @@
 #include "src/mips/assembler-mips-inl.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS64
 #include "src/mips64/assembler-mips64-inl.h"  // NOLINT
+#elif V8_TARGET_ARCH_S390
+#include "src/s390/assembler-s390-inl.h"  // NOLINT
 #elif V8_TARGET_ARCH_X87
 #include "src/x87/assembler-x87-inl.h"  // NOLINT
 #else
@@ -99,6 +101,8 @@
 #include "src/regexp/mips/regexp-macro-assembler-mips.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS64
 #include "src/regexp/mips64/regexp-macro-assembler-mips64.h"  // NOLINT
+#elif V8_TARGET_ARCH_S390
+#include "src/regexp/s390/regexp-macro-assembler-s390.h"  // NOLINT
 #elif V8_TARGET_ARCH_X87
 #include "src/regexp/x87/regexp-macro-assembler-x87.h"  // NOLINT
 #else  // Unknown architecture.
@@ -1498,6 +1502,8 @@ ExternalReference ExternalReference::re_check_stack_guard_state(
   function = FUNCTION_ADDR(RegExpMacroAssemblerMIPS::CheckStackGuardState);
 #elif V8_TARGET_ARCH_MIPS64
   function = FUNCTION_ADDR(RegExpMacroAssemblerMIPS::CheckStackGuardState);
+#elif V8_TARGET_ARCH_S390
+  function = FUNCTION_ADDR(RegExpMacroAssemblerS390::CheckStackGuardState);
 #elif V8_TARGET_ARCH_X87
   function = FUNCTION_ADDR(RegExpMacroAssemblerX87::CheckStackGuardState);
 #else