Index: lib/MC/MCAsmStreamer.cpp
===================================================================
--- lib/MC/MCAsmStreamer.cpp
+++ lib/MC/MCAsmStreamer.cpp
@@ -1257,7 +1257,8 @@
 void MCAsmStreamer::EmitWin64EHPushReg(unsigned Register) {
   MCStreamer::EmitWin64EHPushReg(Register);
 
-  OS << "\t.seh_pushreg " << Register;
+  OS << "\t.seh_pushreg ";
+  EmitRegisterName(Register);
   EmitEOL();
 }
 
@@ -1264,7 +1265,9 @@
 void MCAsmStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
   MCStreamer::EmitWin64EHSetFrame(Register, Offset);
 
-  OS << "\t.seh_setframe " << Register << ", " << Offset;
+  OS << "\t.seh_setframe ";
+  EmitRegisterName(Register);
+  OS << ", " << Offset;
   EmitEOL();
 }
 
@@ -1278,7 +1281,9 @@
 void MCAsmStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
   MCStreamer::EmitWin64EHSaveReg(Register, Offset);
 
-  OS << "\t.seh_savereg " << Register << ", " << Offset;
+  OS << "\t.seh_savereg ";
+  EmitRegisterName(Register);
+  OS << ", " << Offset;
   EmitEOL();
 }
 
@@ -1285,7 +1290,9 @@
 void MCAsmStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
   MCStreamer::EmitWin64EHSaveXMM(Register, Offset);
 
-  OS << "\t.seh_savexmm " << Register << ", " << Offset;
+  OS << "\t.seh_savexmm ";
+  EmitRegisterName(Register);
+  OS << ", " << Offset;
   EmitEOL();
 }
 
Index: test/MC/AsmParser/directive_seh.s
===================================================================
--- test/MC/AsmParser/directive_seh.s
+++ test/MC/AsmParser/directive_seh.s
@@ -3,10 +3,10 @@
 # CHECK: .seh_proc func
 # CHECK: .seh_pushframe @code
 # CHECK: .seh_stackalloc 24
-# CHECK: .seh_savereg 6, 16
-# CHECK: .seh_savexmm 8, 0
-# CHECK: .seh_pushreg 3
-# CHECK: .seh_setframe 3, 0
+# CHECK: .seh_savereg %rbp, 16
+# CHECK: .seh_savexmm %r8, 0
+# CHECK: .seh_pushreg %rbx
+# CHECK: .seh_setframe %rbx, 0
 # CHECK: .seh_endprologue
 # CHECK: .seh_handler __C_specific_handler, @except
 # CHECK-NOT: .section{{.*}}.xdata