diff --git a/bench/InterpBench.cpp b/bench/InterpBench.cpp
index 513618b..f43c37e 100644
--- a/bench/InterpBench.cpp
+++ b/bench/InterpBench.cpp
@@ -16,7 +16,7 @@
     int16_t     fDst[kBuffer];
     float       fFx, fDx;
 public:
-    InterpBench(void* param, const char name[]) : INHERITED(param) {
+    InterpBench(const char name[])  {
         fName.printf("interp_%s", name);
         fFx = 3.3f;
         fDx = 0.1257f;
@@ -45,7 +45,7 @@
 
 class Fixed16D16Interp : public InterpBench {
 public:
-    Fixed16D16Interp(void* param) : INHERITED(param, "16.16") {}
+    Fixed16D16Interp() : INHERITED("16.16") {}
 
 protected:
     virtual void performTest(int16_t dst[], float fx, float dx, int count) SK_OVERRIDE {
@@ -64,7 +64,7 @@
 
 class Fixed32D32Interp : public InterpBench {
 public:
-    Fixed32D32Interp(void* param) : INHERITED(param, "32.32") {}
+    Fixed32D32Interp() : INHERITED("32.32") {}
 
 protected:
     virtual void performTest(int16_t dst[], float fx, float dx, int count) SK_OVERRIDE {
@@ -95,7 +95,7 @@
 
 class Fixed16D48Interp : public InterpBench {
 public:
-    Fixed16D48Interp(void* param) : INHERITED(param, "16.48") {}
+    Fixed16D48Interp() : INHERITED("16.48") {}
 
 protected:
     virtual void performTest(int16_t dst[], float fx, float dx, int count) SK_OVERRIDE {
@@ -115,7 +115,7 @@
 
 class FloatInterp : public InterpBench {
 public:
-    FloatInterp(void* param) : INHERITED(param, "float") {}
+    FloatInterp() : INHERITED("float") {}
 
 protected:
     virtual void performTest(int16_t dst[], float fx, float dx, int count) SK_OVERRIDE {
@@ -133,7 +133,7 @@
 
 class DoubleInterp : public InterpBench {
 public:
-    DoubleInterp(void* param) : INHERITED(param, "double") {}
+    DoubleInterp() : INHERITED("double") {}
 
 protected:
     virtual void performTest(int16_t dst[], float fx, float dx, int count) SK_OVERRIDE {
@@ -153,14 +153,8 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-static SkBenchmark* M0(void* p) { return new Fixed16D16Interp(p); }
-static SkBenchmark* M1(void* p) { return new Fixed32D32Interp(p); }
-static SkBenchmark* M2(void* p) { return new Fixed16D48Interp(p); }
-static SkBenchmark* M3(void* p) { return new FloatInterp(p); }
-static SkBenchmark* M4(void* p) { return new DoubleInterp(p); }
-
-static BenchRegistry gReg0(M0);
-static BenchRegistry gReg1(M1);
-static BenchRegistry gReg2(M2);
-static BenchRegistry gReg3(M3);
-static BenchRegistry gReg4(M4);
+DEF_BENCH( return new Fixed16D16Interp(); )
+DEF_BENCH( return new Fixed32D32Interp(); )
+DEF_BENCH( return new Fixed16D48Interp(); )
+DEF_BENCH( return new FloatInterp(); )
+DEF_BENCH( return new DoubleInterp(); )