Update Flang unit tests

Author: skatrak

flang/test/Lower/target-features.f90 renamed to flang/test/Lower/target-features-amdgcn.f90

@@ -1,3 +1,4 @@
+! REQUIRES: amdgpu-registered-target
 ! RUN: %flang_fc1 -emit-fir %s -o - | FileCheck %s --check-prefixes=ALL,NONE
 ! RUN: %flang_fc1 -emit-fir -triple amdgcn-amd-amdhsa %s -o - | FileCheck %s --check-prefixes=ALL,TRIPLE
 ! RUN: %flang_fc1 -emit-fir -target-cpu gfx90a %s -o - | FileCheck %s --check-prefixes=ALL,CPU

flang/test/Lower/target-features-x86_64.f90

@@ -0,0 +1,21 @@
+! REQUIRES: x86-registered-target
+! RUN: %flang_fc1 -emit-fir -triple x86_64-unknown-linux-gnu %s -o - | FileCheck %s --check-prefixes=ALL,NONE
+! RUN: %flang_fc1 -emit-fir -triple x86_64-unknown-linux-gnu -target-cpu x86-64 %s -o - | FileCheck %s --check-prefixes=ALL,CPU
+! RUN: %flang_fc1 -emit-fir -triple x86_64-unknown-linux-gnu -target-feature +sse %s -o - | FileCheck %s --check-prefixes=ALL,FEATURE
+! RUN: %flang_fc1 -emit-fir -triple x86_64-unknown-linux-gnu -target-cpu x86-64 -target-feature +sse %s -o - | FileCheck %s --check-prefixes=ALL,BOTH
+
+! ALL-LABEL: func.func @_QPfoo()
+
+! NONE-NOT: target_cpu
+! NONE-NOT: target_features
+
+! CPU-SAME: target_cpu = "x86-64"
+! CPU-NOT: target_features
+
+! FEATURE-NOT: target_cpu
+! FEATURE-SAME: target_features = #llvm.target_features<["+sse"]>
+
+! BOTH-SAME: target_cpu = "x86-64"
+! BOTH-SAME: target_features = #llvm.target_features<["+sse"]>
+subroutine foo
+end subroutine