Lower the fcmp instruction for <4 x float> operands.

crosstest/test_fcmp_main.cpp

Index: crosstest/test_fcmp_main.cpp
diff --git a/crosstest/test_fcmp_main.cpp b/crosstest/test_fcmp_main.cpp
index 0c98c0ada8ca3d3b344499f4c4a48bbc067f1a5d..f04b2e50f63966db493e71459391b20d0f8043b9 100644
--- a/crosstest/test_fcmp_main.cpp
+++ b/crosstest/test_fcmp_main.cpp
@@ -1,22 +1,42 @@
+//===- subzero/crosstest/test_fcmp_main.cpp - Driver for tests ------------===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Driver for cross testing the fcmp bitcode instruction
+//
+//===----------------------------------------------------------------------===//
+
 /* crosstest.py --test=test_fcmp.pnacl.ll --driver=test_fcmp_main.cpp \
    --prefix=Subzero_ --output=test_fcmp */
 
 #include <cassert>
 #include <cfloat>
 #include <cmath>
+#include <cstring>
 #include <iostream>
 
+#include "vectors.h"
 #include "test_fcmp.def"
 
 #define X(cmp)                                                                 \
   extern "C" bool fcmp##cmp##Float(float a, float b);                          \
   extern "C" bool fcmp##cmp##Double(double a, double b);                       \
+  extern "C" v4si32 fcmp##cmp##Vector(v4f32 a, v4f32 b);                       \
   extern "C" bool Subzero_fcmp##cmp##Float(float a, float b);                  \
-  extern "C" bool Subzero_fcmp##cmp##Double(double a, double b);
+  extern "C" bool Subzero_fcmp##cmp##Double(double a, double b);               \
+  extern "C" v4si32 Subzero_fcmp##cmp##Vector(v4f32 a, v4f32 b);
 FCMP_TABLE;
 #undef X
 
-int main(int argc, char **argv) {
+volatile double *Values;
+size_t NumValues;
+
+void initializeValues() {
   static const double NegInf = -1.0 / 0.0;
   static const double Zero = 0.0;
   static const double Ten = 10.0;
@@ -30,12 +50,14 @@ int main(int argc, char **argv) {
   assert(NegInf < Zero);
   assert(NegInf < PosInf);
   assert(Zero < PosInf);
+  static volatile double InitValues[] = {NegInf,  -Zero, Zero,    DBL_MIN,
+                                         FLT_MIN, Ten,   FLT_MAX, DBL_MAX,
+                                         PosInf,  Nan,   NegNan};
+  NumValues = sizeof(InitValues) / sizeof(*InitValues);
+  Values = InitValues;
+}
 
-  volatile double Values[] = { NegInf, -Zero,   Zero,    DBL_MIN, FLT_MIN,
-                               Ten,    FLT_MAX, DBL_MAX, PosInf,  Nan,
-                               NegNan };
-  const static size_t NumValues = sizeof(Values) / sizeof(*Values);
-
+void testsScalar(size_t &TotalTests, size_t &Passes, size_t &Failures) {
   typedef bool (*FuncTypeFloat)(float, float);
   typedef bool (*FuncTypeDouble)(double, double);
   static struct {
@@ -58,9 +80,7 @@ int main(int argc, char **argv) {
 
   bool ResultSz, ResultLlc;
 
-  size_t TotalTests = 0;
-  size_t Passes = 0;
-  size_t Failures = 0;
+  assert(Values && NumValues);
 
   for (size_t f = 0; f < NumFuncs; ++f) {
     for (size_t i = 0; i < NumValues; ++i) {
@@ -76,7 +96,7 @@ int main(int argc, char **argv) {
           ++Failures;
           std::cout << Funcs[f].Name << "Float(" << Value1Float << ", "
                     << Value2Float << "): sz=" << ResultSz
-                    << " llc=" << ResultLlc << std::endl;
+                    << " llc=" << ResultLlc << "\n";
         }
         ++TotalTests;
         double Value1Double = Values[i];
@@ -89,11 +109,66 @@ int main(int argc, char **argv) {
           ++Failures;
           std::cout << Funcs[f].Name << "Double(" << Value1Double << ", "
                     << Value2Double << "): sz=" << ResultSz
-                    << " llc=" << ResultLlc << std::endl;
+                    << " llc=" << ResultLlc << "\n";
         }
       }
     }
   }
+}
+
+void testsVector(size_t &TotalTests, size_t &Passes, size_t &Failures) {
+  typedef v4si32 (*FuncTypeVector)(v4f32, v4f32);
+  static struct {
+    const char *Name;
+    FuncTypeVector FuncVectorSz;
+    FuncTypeVector FuncVectorLlc;
+  } Funcs[] = {
+#define X(cmp)                                                                 \
+  { "fcmp" STR(cmp), Subzero_fcmp##cmp##Vector, fcmp##cmp##Vector }            \
+  ,
+        FCMP_TABLE
+#undef X
+    };
+  const static size_t NumFuncs = sizeof(Funcs) / sizeof(*Funcs);
+  const static size_t NumElementsInType = 4;
+  const static size_t MaxTestsPerFunc = 100000;
+
+  assert(Values && NumValues);
+
+  for (size_t f = 0; f < NumFuncs; ++f) {
+    PRNG Index;
+    for (size_t i = 0; i < MaxTestsPerFunc; ++i) {
+      v4f32 Value1, Value2;
+      for (size_t j = 0; j < NumElementsInType; ++j) {
+        Value1[j] = Values[Index() % NumValues];
+        Value2[j] = Values[Index() % NumValues];
+      }
+      ++TotalTests;
+      v4si32 ResultSz, ResultLlc;
+      ResultSz = Funcs[f].FuncVectorSz(Value1, Value2);
+      ResultLlc = Funcs[f].FuncVectorLlc(Value1, Value2);
+      if (!memcmp(&ResultSz, &ResultLlc, sizeof(ResultSz))) {
+        ++Passes;
+      } else {
+        ++Failures;
+        std::cout << Funcs[f].Name << "Vector(" << vectAsString<v4f32>(Value1)
+                  << ", " << vectAsString<v4f32>(Value2)
+                  << "): sz=" << vectAsString<v4si32>(ResultSz)
+                  << " llc=" << vectAsString<v4si32>(ResultLlc) << "\n";
+      }
+    }
+  }
+}
+
+int main(int argc, char **argv) {
+  size_t TotalTests = 0;
+  size_t Passes = 0;
+  size_t Failures = 0;
+
+  initializeValues();
+
+  testsScalar(TotalTests, Passes, Failures);
+  testsVector(TotalTests, Passes, Failures);
 
   std::cout << "TotalTests=" << TotalTests << " Passes=" << Passes
             << " Failures=" << Failures << "\n";