Add tests.

Author: AlexVlx

clang/test/CodeGenHipStdPar/rdc-does-not-enable-hipstdpar.cpp

@@ -0,0 +1,11 @@
+// Check that if we are compiling with fgpu-rdc amdgpu-enable-hipstdpar is not
+// passed to CC1, to avoid eager, per TU, removal of potentially accessible
+// functions.
+
+// RUN: %clang -### --hipstdpar --offload-arch=gfx906 %s -nogpulib -nogpuinc \
+// RUN:   2>&1 | FileCheck -check-prefix=NORDC %s
+// NORDC: {{".*clang.*".* "-triple" "amdgcn-amd-amdhsa".* "-mllvm" "-amdgpu-enable-hipstdpar".*}}
+
+// RUN: %clang -### --hipstdpar --offload-arch=gfx906 %s -nogpulib -nogpuinc -fgpu-rdc \
+// RUN:   2>&1 | FileCheck -check-prefix=RDC %s
+// RDC-NOT: {{"-mllvm" "-amdgpu-enable-hipstdpar".*}}

clang/test/CodeGenHipStdPar/select-accelerator-code-pass-ordering.cpp

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+// Test that the accelerator code selection pass only gets invoked after linking
+
+// Ensure Pass HipStdParAcceleratorCodeSelectionPass is not invoked in PreLink.
+// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -mllvm -amdgpu-enable-hipstdpar -flto -emit-llvm-bc -fcuda-is-device -fdebug-pass-manager \
+// RUN:  %s -o - 2>&1 | FileCheck --check-prefix=HIPSTDPAR-PRE %s
+// HIPSTDPAR-PRE-NOT: Running pass: HipStdParAcceleratorCodeSelectionPass
+
+// Ensure Pass HipStdParAcceleratorCodeSelectionPass is invoked in PostLink.
+// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -mllvm -amdgpu-enable-hipstdpar -fcuda-is-device -fdebug-pass-manager -emit-llvm \
+// RUN:  %s -o - 2>&1 | FileCheck --check-prefix=HIPSTDPAR-POST %s
+// HIPSTDPAR-POST: Running pass: HipStdParAcceleratorCodeSelection
+
+#define __device__ __attribute__((device))
+
+void foo(float *a, float b) {
+  *a = b;
+}
+
+__device__ void bar(float *a, float b) {
+  *a = b;
+}