S390: Initial impl of regexp

src/regexp/jsregexp.cc

Index: src/regexp/jsregexp.cc
diff --git a/src/regexp/jsregexp.cc b/src/regexp/jsregexp.cc
index 74b5da0042f6ef4179e2848715942d7a5f295c26..982846f158d38c993732e4b5a6dd5dc89d156e6a 100644
--- a/src/regexp/jsregexp.cc
+++ b/src/regexp/jsregexp.cc
@@ -41,6 +41,8 @@
 #include "src/regexp/arm/regexp-macro-assembler-arm.h"
 #elif V8_TARGET_ARCH_PPC
 #include "src/regexp/ppc/regexp-macro-assembler-ppc.h"
+#elif V8_TARGET_ARCH_S390
+#include "src/regexp/s390/regexp-macro-assembler-s390.h"
 #elif V8_TARGET_ARCH_MIPS
 #include "src/regexp/mips/regexp-macro-assembler-mips.h"
 #elif V8_TARGET_ARCH_MIPS64
@@ -6703,6 +6705,9 @@ RegExpEngine::CompilationResult RegExpEngine::Compile(
 #elif V8_TARGET_ARCH_ARM64
   RegExpMacroAssemblerARM64 macro_assembler(isolate, zone, mode,
                                             (data->capture_count + 1) * 2);
+#elif V8_TARGET_ARCH_S390
+  RegExpMacroAssemblerS390 macro_assembler(isolate, zone, mode,
+                                           (data->capture_count + 1) * 2);
 #elif V8_TARGET_ARCH_PPC
   RegExpMacroAssemblerPPC macro_assembler(isolate, zone, mode,
                                           (data->capture_count + 1) * 2);