3 files changed, 15 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/MipsTargetMachine.cpp b/llvm/lib/Target/Mips/MipsTargetMachine.cpp
index d453935d3e1..dd6c8cbef03 100644
--- a/llvm/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/llvm/lib/Target/Mips/MipsTargetMachine.cpp
@@ -178,6 +178,7 @@ TargetPassConfig *MipsTargetMachine::createPassConfig(PassManagerBase &PM) {
 
 void MipsPassConfig::addIRPasses() {
   TargetPassConfig::addIRPasses();
+  addPass(createAtomicExpandPass(&getMipsTargetMachine()));
   if (getMipsSubtarget().os16())
     addPass(createMipsOs16(getMipsTargetMachine()));
   if (getMipsSubtarget().inMips16HardFloat())
diff --git a/llvm/lib/Target/Sparc/SparcTargetMachine.cpp b/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
index 80c71448963..ae481b92dea 100644
--- a/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
+++ b/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
@@ -47,6 +47,7 @@ public:
     return getTM<SparcTargetMachine>();
   }
 
+  void addIRPasses() override;
   bool addInstSelector() override;
   bool addPreEmitPass() override;
 };
@@ -56,6 +57,12 @@ TargetPassConfig *SparcTargetMachine::createPassConfig(PassManagerBase &PM) {
   return new SparcPassConfig(this, PM);
 }
 
+void SparcPassConfig::addIRPasses() {
+  addPass(createAtomicExpandPass(&getSparcTargetMachine()));
+
+  TargetPassConfig::addIRPasses();
+}
+
 bool SparcPassConfig::addInstSelector() {
   addPass(createSparcISelDag(getSparcTargetMachine()));
   return false;
diff --git a/llvm/lib/Target/XCore/XCoreTargetMachine.cpp b/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
index 8d8bb3800ea..81925dcce06 100644
--- a/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
+++ b/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
@@ -41,6 +41,7 @@ public:
     return getTM<XCoreTargetMachine>();
   }
 
+  void addIRPasses() override;
   bool addPreISel() override;
   bool addInstSelector() override;
   bool addPreEmitPass() override;
@@ -51,6 +52,12 @@ TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) {
   return new XCorePassConfig(this, PM);
 }
 
+void XCorePassConfig::addIRPasses() {
+  addPass(createAtomicExpandPass(&getXCoreTargetMachine()));
+
+  TargetPassConfig::addIRPasses();
+}
+
 bool XCorePassConfig::addPreISel() {
   addPass(createXCoreLowerThreadLocalPass());
   return false;