Refactor directed test infrastructue.

- Add hierarchy.  Tests now live in directories, each with its own
  CMakeFiles.txt.  Reduces merge conflicts.
- Change make_hip_executable -> build_hip_executable.
- Refresh docs.
- Enable some tests that were previously built but not run.

Change-Id: I8c5de3c954400bf233904282b8b42861a2b7c536

tests/src/deviceLib/hipSinglePrecisionMathHost.cpp

@@ -0,0 +1,126 @@
+/*
+Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+#include "hip_runtime.h"
+#include "test_common.h"
+
+#pragma GCC diagnostic ignored "-Wall"
+#pragma clang diagnostic ignored "-Wunused-variable"
+
+__host__ void single_precision_math_functions()
+{
+    int iX;
+    float fX, fY;
+
+    acosf(1.0f);
+    acoshf(1.0f);
+    asinf(0.0f);
+    asinhf(0.0f);
+    atan2f(0.0f, 1.0f);
+    atanf(0.0f);
+    atanhf(0.0f);
+    cbrtf(0.0f);
+    ceilf(0.0f);
+    copysignf(1.0f, -2.0f);
+    cosf(0.0f);
+    coshf(0.0f);
+    cospif(0.0f);
+    //cyl_bessel_i0f(0.0f);
+    //cyl_bessel_i1f(0.0f);
+    erfcf(0.0f);
+    //erfcinvf(2.0f);
+    //erfcxf(0.0f);
+    erff(0.0f);
+    //erfinvf(1.0f);
+    exp10f(0.0f);
+    exp2f(0.0f);
+    expf(0.0f);
+    expm1f(0.0f);
+    fabsf(1.0f);
+    fdimf(1.0f, 0.0f);
+    //fdividef(0.0f, 1.0f);
+    floorf(0.0f);
+    fmaf(1.0f, 2.0f, 3.0f);
+    fmaxf(0.0f, 0.0f);
+    fminf(0.0f, 0.0f);
+    fmodf(0.0f, 1.0f);
+    frexpf(0.0f, &iX);
+    hypotf(1.0f, 0.0f);
+    ilogbf(1.0f);
+    isfinite(0.0f);
+    isinf(0.0f);
+    isnan(0.0f);
+    ///j0f(0.0f);
+    ///j1f(0.0f);
+    ///jnf(-1.0f, 1.0f);
+    ldexpf(0.0f, 0);
+    ///lgammaf(1.0f);
+    ///llrintf(0.0f);
+    ///llroundf(0.0f);
+    log10f(1.0f);
+    log1pf(-1.0f);
+    log2f(1.0f);
+    logbf(1.0f);
+    logf(1.0f);
+    ///lrintf(0.0f);
+    ///lroundf(0.0f);
+    modff(0.0f, &fX);
+    ///nanf("1");
+    nearbyintf(0.0f);
+    //nextafterf(0.0f);
+    //norm3df(1.0f, 0.0f, 0.0f);
+    //norm4df(1.0f, 0.0f, 0.0f, 0.0f);
+    //normcdff(0.0f);
+    //normcdfinvf(1.0f);
+    //fX = 1.0f; normf(1, &fX);
+    powf(1.0f, 0.0f);
+    //rcbrtf(1.0f);
+    remainderf(2.0f, 1.0f);
+    remquof(1.0f, 2.0f, &iX);
+    //rhypotf(0.0f, 1.0f);
+    ///rintf(1.0f);
+    //rnorm3df(0.0f, 0.0f, 1.0f);
+    //rnorm4df(0.0f, 0.0f, 0.0f, 1.0f);
+    //fX = 1.0f; rnormf(1, &fX);
+    roundf(0.0f);
+    rsqrtf(1.0f);
+    ///scalblnf(0.0f, 1);
+    scalbnf(0.0f, 1);
+    signbit(1.0f);
+    sincosf(0.0f, &fX, &fY);
+    //sincospif(0.0f, &fX, &fY);
+    sinf(0.0f);
+    sinhf(0.0f);
+    sinpif(0.0f);
+    sqrtf(0.0f);
+    tanf(0.0f);
+    tanhf(0.0f);
+    tgammaf(2.0f);
+    truncf(0.0f);
+    ///y0f(1.0f);
+    ///y1f(1.0f);
+    ///ynf(1, 1.0f);
+}
+
+static void compileOnHost()
+{
+    single_precision_math_functions();
+}