Add opt-viewer testing

Detects whether we have the Python modules (pygments, yaml) required by
opt-viewer and hooks this up to REQUIRES.

This fixes https://bugs.llvm.org/show_bug.cgi?id=34129 (the lack of opt-viewer
testing).

It's also related to https://github.com/apple/swift/pull/12938 and the idea is
to expose LLVM_HAVE_OPT_VIEWER_MODULES to the Swift cmake.

Differential Revision: https://reviews.llvm.org/D40202

llvm-svn: 319073

12 files changed, 1152 insertions, 0 deletions

diff --git a/llvm/cmake/config-ix.cmake b/llvm/cmake/config-ix.cmake
index 23494fb96c6..caa538082fc 100644
--- a/llvm/cmake/config-ix.cmake
+++ b/llvm/cmake/config-ix.cmake
@@ -628,3 +628,34 @@ else()
 endif()
 
 string(REPLACE " " ";" LLVM_BINDINGS_LIST "${LLVM_BINDINGS}")
+
+function(find_python_module module)
+  string(TOUPPER ${module} module_upper)
+  set(FOUND_VAR PY_${module_upper}_FOUND)
+
+  execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c" "import ${module}"
+    RESULT_VARIABLE status
+    ERROR_QUIET)
+
+  if(status)
+    set(${FOUND_VAR} 0 PARENT_SCOPE)
+    message(STATUS "Could NOT find Python module ${module}")
+  else()
+    set(${FOUND_VAR} 1 PARENT_SCOPE)
+    message(STATUS "Found Python module ${module}")
+  endif()
+endfunction()
+
+set (PYTHON_MODULES
+  pygments
+  yaml
+  )
+foreach(module ${PYTHON_MODULES})
+  find_python_module(${module})
+endforeach()
+
+if(PY_PYGMENTS_FOUND AND PY_YAML_FOUND)
+  set (LLVM_HAVE_OPT_VIEWER_MODULES 1)
+else()
+  set (LLVM_HAVE_OPT_VIEWER_MODULES 0)
+endif()
diff --git a/llvm/test/lit.cfg.py b/llvm/test/lit.cfg.py
index e956bb74f5a..06a23536a8c 100644
--- a/llvm/test/lit.cfg.py
+++ b/llvm/test/lit.cfg.py
@@ -123,6 +123,7 @@ if config.have_ocamlopt:
     ocamlopt_command = '%s ocamlopt -cclib -L%s -cclib -Wl,-rpath,%s %s' % (
         config.ocamlfind_executable, config.llvm_lib_dir, config.llvm_lib_dir, config.ocaml_flags)
 
+opt_viewer_cmd = '%s %s/tools/opt-viewer/opt-viewer.py' % (sys.executable, config.llvm_src_root)
 
 tools = [
     ToolSubst('%lli', FindTool('lli'), post='.', extra_args=lli_args),
@@ -132,6 +133,7 @@ tools = [
     ToolSubst('%ld64', ld64_cmd, unresolved='ignore'),
     ToolSubst('%ocamlc', ocamlc_command, unresolved='ignore'),
     ToolSubst('%ocamlopt', ocamlopt_command, unresolved='ignore'),
+    ToolSubst('%opt-viewer', opt_viewer_cmd),
 ]
 
 # FIXME: Why do we have both `lli` and `%lli` that do slightly different things?
@@ -286,3 +288,6 @@ if config.have_libxar:
 
 if config.llvm_libxml2_enabled == '1':
     config.available_features.add('libxml2')
+
+if config.have_opt_viewer_modules:
+    config.available_features.add('have_opt_viewer_modules')
diff --git a/llvm/test/lit.site.cfg.py.in b/llvm/test/lit.site.cfg.py.in
index dff46dcff32..117af7336d0 100644
--- a/llvm/test/lit.site.cfg.py.in
+++ b/llvm/test/lit.site.cfg.py.in
@@ -43,6 +43,7 @@ config.link_llvm_dylib = @LLVM_LINK_LLVM_DYLIB@
 config.llvm_libxml2_enabled = "@LLVM_LIBXML2_ENABLED@"
 config.llvm_host_triple = '@LLVM_HOST_TRIPLE@'
 config.host_arch = "@HOST_ARCH@"
+config.have_opt_viewer_modules = @LLVM_HAVE_OPT_VIEWER_MODULES@
 
 # Support substitution of the tools_dir with user parameters. This is
 # used when we can't determine the tool dir at configuration time.
diff --git a/llvm/test/tools/opt-viewer/Inputs/basic/or.c b/llvm/test/tools/opt-viewer/Inputs/basic/or.c
new file mode 100644
index 00000000000..6b1c4744cda
--- /dev/null
+++ b/llvm/test/tools/opt-viewer/Inputs/basic/or.c
@@ -0,0 +1,21 @@
+void bar();
+void foo() { bar(); }
+
+#include "or.h"
+
+void Test(int *res, int *c, int *d, int *p, int n) {
+  int i;
+
+#pragma clang loop vectorize(assume_safety)
+  for (i = 0; i < 1600; i++) {
+    res[i] = (p[i] == 0) ? res[i] : res[i] + d[i];
+  }
+
+  for (i = 0; i < 16; i++) {
+    res[i] = (p[i] == 0) ? res[i] : res[i] + d[i];
+  }
+
+  foo();
+
+  foo(); bar(); foo();
+}
diff --git a/llvm/test/tools/opt-viewer/Inputs/basic/or.h b/llvm/test/tools/opt-viewer/Inputs/basic/or.h
new file mode 100644
index 00000000000..a1c47edb3d1
--- /dev/null
+++ b/llvm/test/tools/opt-viewer/Inputs/basic/or.h
@@ -0,0 +1,16 @@
+void TestH(int *res, int *c, int *d, int *p, int n) {
+  int i;
+
+#pragma clang loop vectorize(assume_safety)
+  for (i = 0; i < 1600; i++) {
+    res[i] = (p[i] == 0) ? res[i] : res[i] + d[i];
+  }
+
+  for (i = 0; i < 16; i++) {
+    res[i] = (p[i] == 0) ? res[i] : res[i] + d[i];
+  }
+
+  foo();
+
+  foo(); bar(); foo();
+}
diff --git a/llvm/test/tools/opt-viewer/Inputs/basic/or.yaml b/llvm/test/tools/opt-viewer/Inputs/basic/or.yaml
new file mode 100644
index 00000000000..11c5528b43f
--- /dev/null
+++ b/llvm/test/tools/opt-viewer/Inputs/basic/or.yaml
@@ -0,0 +1,227 @@
+--- !Missed
+Pass:            inline
+Name:            NoDefinition
+DebugLoc:        { File: basic/or.c, Line: 2, Column: 14 }
+Function:        foo
+Args:
+  - Callee:          bar
+  - String:          ' will not be inlined into '
+  - Caller:          foo
+  - String:          ' because its definition is unavailable'
+...
+--- !Missed
+Pass:            inline
+Name:            NoDefinition
+DebugLoc:        { File: basic/or.h, Line: 15, Column: 10 }
+Function:        TestH
+Args:
+  - Callee:          bar
+  - String:          ' will not be inlined into '
+  - Caller:          TestH
+  - String:          ' because its definition is unavailable'
+...
+--- !Analysis
+Pass:            inline
+Name:            CanBeInlined
+DebugLoc:        { File: basic/or.h, Line: 13, Column: 3 }
+Function:        TestH
+Args:
+  - Callee:          foo
+  - String:          ' can be inlined into '
+  - Caller:          TestH
+  - String:          ' with cost='
+  - Cost:            '30'
+  - String:          ' (threshold='
+  - Threshold:       '412'
+  - String:          ')'
+...
+--- !Passed
+Pass:            inline
+Name:            Inlined
+DebugLoc:        { File: basic/or.h, Line: 13, Column: 3 }
+Function:        TestH
+Args:
+  - Callee:          foo
+  - String:          ' inlined into '
+  - Caller:          TestH
+...
+--- !Analysis
+Pass:            inline
+Name:            CanBeInlined
+DebugLoc:        { File: basic/or.h, Line: 15, Column: 3 }
+Function:        TestH
+Args:
+  - Callee:          foo
+  - String:          ' can be inlined into '
+  - Caller:          TestH
+  - String:          ' with cost='
+  - Cost:            '30'
+  - String:          ' (threshold='
+  - Threshold:       '412'
+  - String:          ')'
+...
+--- !Passed
+Pass:            inline
+Name:            Inlined
+DebugLoc:        { File: basic/or.h, Line: 15, Column: 3 }
+Function:        TestH
+Args:
+  - Callee:          foo
+  - String:          ' inlined into '
+  - Caller:          TestH
+...
+--- !Analysis
+Pass:            inline
+Name:            CanBeInlined
+DebugLoc:        { File: basic/or.h, Line: 15, Column: 17 }
+Function:        TestH
+Args:
+  - Callee:          foo
+  - String:          ' can be inlined into '
+  - Caller:          TestH
+  - String:          ' with cost='
+  - Cost:            '30'
+  - String:          ' (threshold='
+  - Threshold:       '412'
+  - String:          ')'
+...
+--- !Passed
+Pass:            inline
+Name:            Inlined
+DebugLoc:        { File: basic/or.h, Line: 15, Column: 17 }
+Function:        TestH
+Args:
+  - Callee:          foo
+  - String:          ' inlined into '
+  - Caller:          TestH
+...
+--- !Passed
+Pass:            loop-unroll
+Name:            FullyUnrolled
+DebugLoc:        { File: basic/or.h, Line: 9, Column: 3 }
+Function:        TestH
+Args:
+  - String:          'completely unrolled loop with '
+  - UnrollCount:     '16'
+  - String:          ' iterations'
+...
+--- !Missed
+Pass:            inline
+Name:            NoDefinition
+DebugLoc:        { File: basic/or.c, Line: 20, Column: 10 }
+Function:        Test
+Args:
+  - Callee:          bar
+  - String:          ' will not be inlined into '
+  - Caller:          Test
+  - String:          ' because its definition is unavailable'
+...
+--- !Analysis
+Pass:            inline
+Name:            CanBeInlined
+DebugLoc:        { File: basic/or.c, Line: 18, Column: 3 }
+Function:        Test
+Args:
+  - Callee:          foo
+  - String:          ' can be inlined into '
+  - Caller:          Test
+  - String:          ' with cost='
+  - Cost:            '30'
+  - String:          ' (threshold='
+  - Threshold:       '412'
+  - String:          ')'
+...
+--- !Passed
+Pass:            inline
+Name:            Inlined
+DebugLoc:        { File: basic/or.c, Line: 18, Column: 3 }
+Function:        Test
+Args:
+  - Callee:          foo
+  - String:          ' inlined into '
+  - Caller:          Test
+...
+--- !Analysis
+Pass:            inline
+Name:            CanBeInlined
+DebugLoc:        { File: basic/or.c, Line: 20, Column: 3 }
+Function:        Test
+Args:
+  - Callee:          foo
+  - String:          ' can be inlined into '
+  - Caller:          Test
+  - String:          ' with cost='
+  - Cost:            '30'
+  - String:          ' (threshold='
+  - Threshold:       '412'
+  - String:          ')'
+...
+--- !Passed
+Pass:            inline
+Name:            Inlined
+DebugLoc:        { File: basic/or.c, Line: 20, Column: 3 }
+Function:        Test
+Args:
+  - Callee:          foo
+  - String:          ' inlined into '
+  - Caller:          Test
+...
+--- !Analysis
+Pass:            inline
+Name:            CanBeInlined
+DebugLoc:        { File: basic/or.c, Line: 20, Column: 17 }
+Function:        Test
+Args:
+  - Callee:          foo
+  - String:          ' can be inlined into '
+  - Caller:          Test
+  - String:          ' with cost='
+  - Cost:            '30'
+  - String:          ' (threshold='
+  - Threshold:       '412'
+  - String:          ')'
+...
+--- !Passed
+Pass:            inline
+Name:            Inlined
+DebugLoc:        { File: basic/or.c, Line: 20, Column: 17 }
+Function:        Test
+Args:
+  - Callee:          foo
+  - String:          ' inlined into '
+  - Caller:          Test
+...
+--- !Passed
+Pass:            loop-unroll
+Name:            FullyUnrolled
+DebugLoc:        { File: basic/or.c, Line: 14, Column: 3 }
+Function:        Test
+Args:
+  - String:          'completely unrolled loop with '
+  - UnrollCount:     '16'
+  - String:          ' iterations'
+...
+--- !Passed
+Pass:            loop-vectorize
+Name:            Vectorized
+DebugLoc:        { File: basic/or.h, Line: 5, Column: 3 }
+Function:        TestH
+Args:
+  - String:          'vectorized loop (vectorization width: '
+  - VectorizationFactor: '4'
+  - String:          ', interleaved count: '
+  - InterleaveCount: '2'
+  - String:          ')'
+...
+--- !Passed
+Pass:            loop-vectorize
+Name:            Vectorized
+DebugLoc:        { File: basic/or.c, Line: 10, Column: 3 }
+Function:        Test
+Args:
+  - String:          'vectorized loop (vectorization width: '
+  - VectorizationFactor: '4'
+  - String:          ', interleaved count: '
+  - InterleaveCount: '2'
+  - String:          ')'
+...
diff --git a/llvm/test/tools/opt-viewer/Outputs/basic/basic_or.c.html b/llvm/test/tools/opt-viewer/Outputs/basic/basic_or.c.html
new file mode 100644
index 00000000000..ac7d782b1db
--- /dev/null
+++ b/llvm/test/tools/opt-viewer/Outputs/basic/basic_or.c.html
@@ -0,0 +1,264 @@
+
+<html>
+<head>
+<link rel='stylesheet' type='text/css' href='style.css'>
+</head>
+<body>
+<div class="centered">
+<table class="source">
+<thead>
+<tr>
+<th style="width: 2%">Line</td>
+<th style="width: 3%">Hotness</td>
+<th style="width: 10%">Optimization</td>
+<th style="width: 70%">Source</td>
+<th style="width: 15%">Inline Context</td>
+</tr>
+</thead>
+<tbody>
+
+<tr>
+<td><a name="L1">1</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">bar</span><span class="p">();</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L2">2</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span class="kt">void</span> <span class="nf">foo</span><span class="p">()</span> <span class="p">{</span> <span class="n">bar</span><span class="p">();</span> <span class="p">}</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-red">inline</td>
+<td><pre style="display:inline">             </pre><span class="column-entry-yellow"> bar will not be inlined into foo because its definition is unavailable&nbsp;</span></td>
+<td class="column-entry-yellow">foo</td>
+</tr>
+
+<tr>
+<td><a name="L3">3</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L4">4</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span class="cp">#include</span> <span class="cpf">&quot;or.h&quot;</span><span class="cp"></span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L5">5</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L6">6</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span class="kt">void</span> <span class="nf">Test</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">res</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">c</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">d</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">,</span> <span class="kt">int</span> <span class="n">n</span><span class="p">)</span> <span class="p">{</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L7">7</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="kt">int</span> <span class="n">i</span><span class="p">;</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L8">8</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L9">9</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span class="cp">#pragma clang loop vectorize(assume_safety)</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L10">10</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="k">for</span> <span class="p">(</span><span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">&lt;</span> <span class="mi">1600</span><span class="p">;</span> <span class="n">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">loop-vectorize</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> vectorized loop (vectorization width: 4, interleaved count: 2)&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td><a name="L11">11</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>    <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">p</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="o">?</span> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">:</span> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="n">d</span><span class="p">[</span><span class="n">i</span><span class="p">];</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L12">12</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="p">}</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L13">13</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L14">14</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="k">for</span> <span class="p">(</span><span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">&lt;</span> <span class="mi">16</span><span class="p">;</span> <span class="n">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">loop-unroll</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> completely unrolled loop with 16 iterations&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td><a name="L15">15</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>    <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">p</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="o">?</span> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">:</span> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="n">d</span><span class="p">[</span><span class="n">i</span><span class="p">];</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L16">16</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="p">}</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L17">17</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L18">18</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="n">foo</span><span class="p">();</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-white">inline</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> foo can be inlined into Test with cost=30 (threshold=412)&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">inline</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> foo inlined into Test&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td><a name="L19">19</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L20">20</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="n">foo</span><span class="p">();</span> <span class="n">bar</span><span class="p">();</span> <span class="n">foo</span><span class="p">();</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-red">inline</td>
+<td><pre style="display:inline">         </pre><span class="column-entry-yellow"> bar will not be inlined into Test because its definition is unavailable&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-white">inline</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> foo can be inlined into Test with cost=30 (threshold=412)&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">inline</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> foo inlined into Test&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-white">inline</td>
+<td><pre style="display:inline">                </pre><span class="column-entry-yellow"> foo can be inlined into Test with cost=30 (threshold=412)&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">inline</td>
+<td><pre style="display:inline">                </pre><span class="column-entry-yellow"> foo inlined into Test&nbsp;</span></td>
+<td class="column-entry-yellow">Test</td>
+</tr>
+
+<tr>
+<td><a name="L21">21</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span class="p">}</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L22">22</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L23">23</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+</tbody>
+</table>
+</body>
+</html>
diff --git a/llvm/test/tools/opt-viewer/Outputs/basic/basic_or.h.html b/llvm/test/tools/opt-viewer/Outputs/basic/basic_or.h.html
new file mode 100644
index 00000000000..deb29bfaeb2
--- /dev/null
+++ b/llvm/test/tools/opt-viewer/Outputs/basic/basic_or.h.html
@@ -0,0 +1,221 @@
+
+<html>
+<head>
+<link rel='stylesheet' type='text/css' href='style.css'>
+</head>
+<body>
+<div class="centered">
+<table class="source">
+<thead>
+<tr>
+<th style="width: 2%">Line</td>
+<th style="width: 3%">Hotness</td>
+<th style="width: 10%">Optimization</td>
+<th style="width: 70%">Source</td>
+<th style="width: 15%">Inline Context</td>
+</tr>
+</thead>
+<tbody>
+
+<tr>
+<td><a name="L1">1</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">TestH</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">res</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">c</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">d</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">,</span> <span class="kt">int</span> <span class="n">n</span><span class="p">)</span> <span class="p">{</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L2">2</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="kt">int</span> <span class="n">i</span><span class="p">;</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L3">3</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L4">4</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span class="cp">#pragma clang loop vectorize(assume_safety)</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L5">5</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="k">for</span> <span class="p">(</span><span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">&lt;</span> <span class="mi">1600</span><span class="p">;</span> <span class="n">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">loop-vectorize</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> vectorized loop (vectorization width: 4, interleaved count: 2)&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td><a name="L6">6</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>    <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">p</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="o">?</span> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">:</span> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="n">d</span><span class="p">[</span><span class="n">i</span><span class="p">];</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L7">7</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="p">}</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L8">8</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L9">9</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="k">for</span> <span class="p">(</span><span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">&lt;</span> <span class="mi">16</span><span class="p">;</span> <span class="n">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">loop-unroll</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> completely unrolled loop with 16 iterations&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td><a name="L10">10</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>    <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">p</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="o">?</span> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">:</span> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="n">d</span><span class="p">[</span><span class="n">i</span><span class="p">];</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L11">11</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="p">}</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L12">12</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L13">13</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="n">foo</span><span class="p">();</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-white">inline</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> foo can be inlined into TestH with cost=30 (threshold=412)&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">inline</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> foo inlined into TestH&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td><a name="L14">14</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L15">15</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre>  <span class="n">foo</span><span class="p">();</span> <span class="n">bar</span><span class="p">();</span> <span class="n">foo</span><span class="p">();</span></pre></div></td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-red">inline</td>
+<td><pre style="display:inline">         </pre><span class="column-entry-yellow"> bar will not be inlined into TestH because its definition is unavailable&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-white">inline</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> foo can be inlined into TestH with cost=30 (threshold=412)&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">inline</td>
+<td><pre style="display:inline">  </pre><span class="column-entry-yellow"> foo inlined into TestH&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-white">inline</td>
+<td><pre style="display:inline">                </pre><span class="column-entry-yellow"> foo can be inlined into TestH with cost=30 (threshold=412)&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td></td>
+<td></td>
+<td class="column-entry-green">inline</td>
+<td><pre style="display:inline">                </pre><span class="column-entry-yellow"> foo inlined into TestH&nbsp;</span></td>
+<td class="column-entry-yellow">TestH</td>
+</tr>
+
+<tr>
+<td><a name="L16">16</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre><span class="p">}</span></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L17">17</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+<tr>
+<td><a name="L18">18</a></td>
+<td></td>
+<td></td>
+<td><div class="highlight"><pre></pre></div></td>
+</tr>
+
+</tbody>
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+</body>
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+<td class="column-entry-0"><a href="basic_or.c.html#L2">basic/or.c:2:14</a></td>
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diff --git a/llvm/test/tools/opt-viewer/basic.test b/llvm/test/tools/opt-viewer/basic.test
new file mode 100644
index 00000000000..766de55edd4
--- /dev/null
+++ b/llvm/test/tools/opt-viewer/basic.test
@@ -0,0 +1,5 @@
+RUN: %opt-viewer -s %p/Inputs -o %t %p/Inputs/basic/or.yaml
+RUN: diff %p/Outputs/basic/index.html %t/index.html
+RUN: diff %p/Outputs/basic/basic_or.h.html %t/basic_or.h.html
+RUN: diff %p/Outputs/basic/basic_or.c.html %t/basic_or.c.html
+RUN: ls %t/style.css
diff --git a/llvm/test/tools/opt-viewer/lit.local.cfg b/llvm/test/tools/opt-viewer/lit.local.cfg
new file mode 100644
index 00000000000..84dda078f97
--- /dev/null
+++ b/llvm/test/tools/opt-viewer/lit.local.cfg
@@ -0,0 +1,2 @@
+if 'have_opt_viewer_modules' not in config.available_features:
+    config.unsupported = True