s390: Allow larger Operands/Displacements/Offsets in s390

src/s390/assembler-s390.cc

Index: src/s390/assembler-s390.cc
diff --git a/src/s390/assembler-s390.cc b/src/s390/assembler-s390.cc
index 934f460144286f71e8bfe3dec8cb78e1e2a12d55..b5cc07d8dde41e73a595c1c2edae6af2c2184233 100644
--- a/src/s390/assembler-s390.cc
+++ b/src/s390/assembler-s390.cc
@@ -1920,7 +1920,7 @@ void Assembler::agf(Register r1, const MemOperand& opnd) {
 
 // Add Immediate (64)
 void Assembler::agfi(Register r1, const Operand& opnd) {
-  ril_form(ALFI, r1, opnd);
+  ril_form(AGFI, r1, opnd);
 }
 
 // Add Register-Register (64<-32)
@@ -2646,6 +2646,11 @@ void Assembler::iill(Register r1, const Operand& opnd) {
   ri_form(IILL, r1, opnd);
 }
 
+// Load Immediate 32->64
+void Assembler::lgfi(Register r1, const Operand& opnd) {
+  ril_form(LGFI, r1, opnd);
+}
+
 // GPR <-> FPR Instructions
 
 // Floating point instructions