Update tests to follow new Bug/Unimplemented convention + clean up some tests (#394)

Removes XFAILS from tests if the linked issue was closed. 
Added new XFAILS when appropriate. 
Put Bug or Unimplemented next to linked Issue when appropriate
fix up log.16 test to not use inf/nan/denorm inputs
A few other minor changes

Closes #381

Author: spall

README.md

@@ -55,6 +55,16 @@ The offload test suite's code is clang-tidy clean for a limited ruleset.
 If you have clang-tidy installed locally you can enable clang-tidy by adding `-DOFFLOADTEST_USE_CLANG_TIDY=On` to your CMake invocation.
 You can also add `-DOFFLOADTEST_CLANG_TIDY_APPLY_FIX=On` to enable automatically applying the clang-tidy fix-its for any warnings that have automated fixes.
 
+# Failing tests
+
+Tests which are failing can be prevented from running using `XFAIL` and `UNSUPPORTED`. When `XFAIL`ing a test make sure to add a comment above
+linking the appropriate issue and whether the failure is due to a bug or an unimplemented feature.
+
+```
+# Bug/Unimplemented <link to issue>
+# XFAIL: Clang-Vulkan
+```
+
 # YAML Pipeline Format
 
 This framework provides a YAML representation for describing GPU pipelines and buffers. The format is implemented by the `API/Pipeline.{h|cpp}` sources. The following is an example pipeline YAML description:

test/Bugs/Adjacent-Partial-Writes.yaml

@@ -62,7 +62,7 @@ DescriptorSets:
 # UHD drivers. This issue does not reproduce when compiled with Clang because
 # LLVM's load-store optimization performs correct optimizations that hide the
 # problem.
-# Tracking issue: https://github.com/llvm/offload-test-suite/issues/226
+# Bug https://github.com/llvm/offload-test-suite/issues/226
 # XFAIL: Intel-Memory-Coherence-Issue-226 && !Clang
 
 # https://github.com/microsoft/DirectXShaderCompiler/issues/7494

test/Bugs/UAV-Sequental-Consistency.yaml

@@ -62,7 +62,7 @@ DescriptorSets:
 # problem.
 # This test fails randomly but inconsistently without validation enabled. With
 # validation enabled it fails consistently every time.
-# Tracking issue: https://github.com/llvm/offload-test-suite/issues/226
+# Bug https://github.com/llvm/offload-test-suite/issues/226
 # XFAIL: Intel-Memory-Coherence-Issue-226 && !Clang
 
 # RUN: split-file %s %t

test/Feature/CBuffer/arrays-16bit.test

@@ -59,7 +59,7 @@ DescriptorSets:
 # DXC's vulkan support does not layout cbuffers compatibly with DXIL
 # UNSUPPORTED: Vulkan
 
-# https://github.com/llvm/llvm-project/issues/138996
+# Bug https://github.com/llvm/llvm-project/issues/138996
 # XFAIL: Clang
 
 # RUN: split-file %s %t

test/Feature/CBuffer/arrays-64bit.test

@@ -63,7 +63,7 @@ DescriptorSets:
 # DXC's vulkan support does not layout cbuffers compatibly with DXIL
 # UNSUPPORTED: Vulkan
 
-# https://github.com/llvm/llvm-project/issues/110722
+# Unimplemented https://github.com/llvm/llvm-project/issues/147352
 # XFAIL: Clang
 
 # REQUIRES: Double, Int64

test/Feature/CBuffer/arrays.test

@@ -63,7 +63,7 @@ DescriptorSets:
 # DXC's vulkan support does not layout cbuffers compatibly with DXIL
 # UNSUPPORTED: Vulkan
 
-# https://github.com/llvm/llvm-project/issues/110722
+# Unimplemented https://github.com/llvm/llvm-project/issues/147352
 # XFAIL: Clang
 
 # RUN: split-file %s %t

test/Feature/CBuffer/structs.test

@@ -98,7 +98,7 @@ DescriptorSets:
 # UNSUPPORTED: Vulkan
 
 +# Clang trips on 2-element vectors in structs:
-+# https://github.com/llvm/llvm-project/issues/123968
++# Bug https://github.com/llvm/llvm-project/issues/123968
 +# XFAIL: Clang
 
 # RUN: split-file %s %t

test/Feature/CBuffer/vectors-64bit.test

@@ -64,7 +64,7 @@ DescriptorSets:
 # UNSUPPORTED: Vulkan
 
 # Clang trips on 3-element vectors in structs:
-# https://github.com/llvm/llvm-project/issues/123968
+# Bug https://github.com/llvm/llvm-project/issues/123968
 # XFAIL: Clang
 
 # RUN: split-file %s %t

test/Feature/CBuffer/vectors.test

@@ -64,7 +64,7 @@ DescriptorSets:
 # UNSUPPORTED: Vulkan
 
 # Clang trips on 3-element vectors in structs:
-# https://github.com/llvm/llvm-project/issues/123968
+# Bug https://github.com/llvm/llvm-project/issues/123968
 # XFAIL: Clang
 
 # RUN: split-file %s %t

test/Feature/HLSLLib/D3DCOLORtoUBYTE4.test

@@ -51,7 +51,7 @@ DescriptorSets:
 #--- end
 
 
-# https://github.com/llvm/llvm-project/issues/149561
+# Bug https://github.com/llvm/llvm-project/issues/149561
 # XFAIL: Clang-Vulkan && !VK_KHR_shader_float_controls2
 
 # RUN: split-file %s %t