Index: lib/Basic/Targets/PPC.h
===================================================================
--- lib/Basic/Targets/PPC.h
+++ lib/Basic/Targets/PPC.h
@@ -44,7 +44,8 @@
     ArchDefinePwr8 = 1 << 12,
     ArchDefinePwr9 = 1 << 13,
     ArchDefineA2 = 1 << 14,
-    ArchDefineA2q = 1 << 15
+    ArchDefineA2q = 1 << 15,
+    ArchDefineE500 = 1 << 16
   } ArchDefineTypes;
 
 
@@ -145,6 +146,7 @@
                      ArchDefinePwr9 | ArchDefinePwr8 | ArchDefinePwr7 |
                          ArchDefinePwr6 | ArchDefinePwr5x | ArchDefinePwr5 |
                          ArchDefinePwr4 | ArchDefinePpcgr | ArchDefinePpcsq)
+              .Case("8548", ArchDefineE500)
               .Default(ArchDefineNone);
     }
     return CPUKnown;
Index: lib/Basic/Targets/PPC.cpp
===================================================================
--- lib/Basic/Targets/PPC.cpp
+++ lib/Basic/Targets/PPC.cpp
@@ -157,6 +157,8 @@
     Builder.defineMacro("_ARCH_A2Q");
     Builder.defineMacro("_ARCH_QP");
   }
+  if (ArchDefs & ArchDefineE500)
+    Builder.defineMacro("__NO_LWSYNC__");
 
   if (getTriple().getVendor() == llvm::Triple::BGQ) {
     Builder.defineMacro("__bg__");
@@ -312,6 +314,8 @@
                         .Case("pwr8", true)
                         .Default(false);
 
+  Features["spe"] = (CPU == "e500");
+
   if (!ppcUserFeaturesCheck(Diags, FeaturesVec))
     return false;
 
@@ -449,16 +453,16 @@
 }
 
 static constexpr llvm::StringLiteral ValidCPUNames[] = {
-    {"generic"}, {"440"},         {"450"},     {"601"},    {"602"},
-    {"603"},     {"603e"},        {"603ev"},   {"604"},    {"604e"},
-    {"620"},     {"630"},         {"g3"},      {"7400"},   {"g4"},
-    {"7450"},    {"g4+"},         {"750"},     {"970"},    {"g5"},
-    {"a2"},      {"a2q"},         {"e500mc"},  {"e5500"},  {"power3"},
-    {"pwr3"},    {"power4"},      {"pwr4"},    {"power5"}, {"pwr5"},
-    {"power5x"}, {"pwr5x"},       {"power6"},  {"pwr6"},   {"power6x"},
-    {"pwr6x"},   {"power7"},      {"pwr7"},    {"power8"}, {"pwr8"},
-    {"power9"},  {"pwr9"},        {"powerpc"}, {"ppc"},    {"powerpc64"},
-    {"ppc64"},   {"powerpc64le"}, {"ppc64le"},
+    {"generic"},   {"440"},       {"450"},         {"601"},         {"602"},
+    {"603"},       {"603e"},      {"603ev"},       {"604"},         {"604e"},
+    {"620"},       {"630"},       {"g3"},          {"7400"},        {"g4"},
+    {"7450"},      {"g4+"},       {"750"},         {"8548"},        {"970"},
+    {"g5"},        {"a2"},        {"a2q"},         {"e500"},        {"e500mc"},
+    {"e5500"},     {"power3"},    {"pwr3"},        {"power4"},      {"pwr4"},
+    {"power5"},    {"pwr5"},      {"power5x"},     {"pwr5x"},       {"power6"},
+    {"pwr6"},      {"power6x"},   {"pwr6x"},       {"power7"},      {"pwr7"},
+    {"power8"},    {"pwr8"},      {"power9"},      {"pwr9"},        {"powerpc"},
+    {"ppc"},       {"powerpc64"}, {"ppc64"},       {"powerpc64le"}, {"ppc64le"},
 };
 
 bool PPCTargetInfo::isValidCPUName(StringRef Name) const {
Index: lib/Driver/ToolChains/Arch/PPC.cpp
===================================================================
--- lib/Driver/ToolChains/Arch/PPC.cpp
+++ lib/Driver/ToolChains/Arch/PPC.cpp
@@ -52,6 +52,7 @@
         .Case("7450", "7450")
         .Case("G4+", "g4+")
         .Case("750", "750")
+        .Case("8548", "e500")
         .Case("970", "970")
         .Case("G5", "g5")
         .Case("a2", "a2")
Index: test/Misc/target-invalid-cpu-note.c
===================================================================
--- test/Misc/target-invalid-cpu-note.c
+++ test/Misc/target-invalid-cpu-note.c
@@ -79,10 +79,10 @@
 // PPC: error: unknown target CPU 'not-a-cpu'
 // PPC: note: valid target CPU values are: generic, 440, 450, 601, 602, 603,
 // PPC-SAME: 603e, 603ev, 604, 604e, 620, 630, g3, 7400, g4, 7450, g4+, 750,
-// PPC-SAME: 970, g5, a2, a2q, e500mc, e5500, power3, pwr3, power4, pwr4,
-// PPC-SAME: power5, pwr5, power5x, pwr5x, power6, pwr6, power6x, pwr6x, power7,
-// PPC-SAME: pwr7, power8, pwr8, power9, pwr9, powerpc, ppc, powerpc64, ppc64,
-// PPC-SAME: powerpc64le, ppc64le
+// PPC-SAME: 8548, 970, g5, a2, a2q, e500, e500mc, e5500, power3, pwr3, power4,
+// PPC-SAME: pwr4, power5, pwr5, power5x, pwr5x, power6, pwr6, power6x, pwr6x,
+// PPC-SAME: power7, pwr7, power8, pwr8, power9, pwr9, powerpc, ppc, powerpc64,
+// PPC-SAME: ppc64, powerpc64le, ppc64le
 
 // RUN: not %clang_cc1 -triple mips--- -target-cpu not-a-cpu -fsyntax-only %s 2>&1 | FileCheck %s --check-prefix MIPS
 // MIPS: error: unknown target CPU 'not-a-cpu'
Index: test/Preprocessor/init.c
===================================================================
--- test/Preprocessor/init.c
+++ test/Preprocessor/init.c
@@ -7584,6 +7584,10 @@
 //
 // PPC32-SPE:#define __NO_FPRS__ 1
 // PPC32-SPE:#define __SPE__ 1
+// 
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=powerpc-unknown-linux-gnu -target-cpu 8548 < /dev/null | FileCheck -match-full-lines -check-prefix PPC8548 %s
+//
+// PPC8548:#define __NO_LWSYNC__ 1
 //
 // RUN: %clang_cc1 -E -dM -ffreestanding -triple=powerpc-apple-darwin8 < /dev/null | FileCheck -match-full-lines -check-prefix PPC-DARWIN %s
 //