remove clang_dxc from codegenhlsl

Author: inbelic

clang/test/CodeGenHLSL/enable-16bit-types.hlsl

@@ -1,5 +1,7 @@
-// RUN: %clang_dxc -enable-16bit-types -T lib_6_3 -HV 202x -Vd -Xclang -emit-llvm %s | FileCheck %s --check-prefix=FLAG
-// RUN: %clang_dxc -T lib_6_3 -HV 202x -Vd -Xclang -emit-llvm %s | FileCheck %s --check-prefix=NOFLAG
+// RUN: %clang_cc1 -fnative-half-type -std=hlsl202x -triple dxilv1.3-unknown-shadermodel6.3-library \
+// RUN:  -finclude-default-header -emit-llvm -o - %s 2>&1 | FileCheck %s --check-prefix=FLAG
+// RUN: %clang_cc1 -std=hlsl202x -triple dxilv1.3-unknown-shadermodel6.3-library \
+// RUN:  -finclude-default-header -emit-llvm -o - %s 2>&1 | FileCheck %s --check-prefix=NOFLAG
 
 // FLAG-DAG: ![[NLP:.*]] = !{i32 1, !"dx.nativelowprec", i32 1}
 // FLAG-DAG: !llvm.module.flags = !{{{.*}}![[NLP]]{{.*}}}

clang/test/CodeGenHLSL/res-may-alias.hlsl

@@ -1,5 +1,7 @@
-// RUN: %clang_dxc -res-may-alias -T lib_6_3 -HV 202x -Vd -Xclang -emit-llvm %s | FileCheck %s --check-prefix=FLAG
-// RUN: %clang_dxc -T lib_6_3 -HV 202x -Vd -Xclang -emit-llvm %s | FileCheck %s --check-prefix=NOFLAG
+// RUN: %clang_cc1 -res-may-alias -std=hlsl202x -triple dxilv1.3-unknown-shadermodel6.3-library \
+// RUN:  -finclude-default-header -emit-llvm -o - %s 2>&1 | FileCheck %s --check-prefix=FLAG
+// RUN: %clang_cc1 -std=hlsl202x -triple dxilv1.3-unknown-shadermodel6.3-library \
+// RUN:  -finclude-default-header -emit-llvm -o - %s 2>&1 | FileCheck %s --check-prefix=NOFLAG
 
 // FLAG-DAG: ![[RMA:.*]] = !{i32 1, !"dx.resmayalias", i32 1}
 // FLAG-DAG: !llvm.module.flags = !{{{.*}}![[RMA]]{{.*}}}