[OpenMP][NFC] Pre-commit test changes regarding PR48933

[jdoerfert]

Summary

This will highlight the effective changes in subsequent commits.

[jdoerfert]

Add more examples and TODOs

[jdoerfert]

More TODOs

[jdoerfert]

Add more tests

[jdoerfert]

Add *not* to TODOs

[jdoerfert]

ping and follow up patches. Fixes PR49158

[ABataev]

LG

clang/test/OpenMP/nvptx_unsupported_type_messages.cpp

void foo1(T1 a = T1()) {
   return;
 }
 T1 bar1() {
   return T1();
 }
 void baz1() {
   T1 t = bar1();
 }
+
+// TODO: We should not emit an error for dead functions we do not emit.
+inline void dead_inline_declare_target() {
+// expected-note@+1 {{'b' defined here}}
+  long double *a, b = 0;
+// expected-error@+1 {{'b' requires 128 bit size 'long double' type support, but device 'nvptx64-unknown-unknown' does not support it}}
+  a = &b;
+}
+// TODO: We should not emit an error for dead functions we do not emit.
+static void dead_static_declare_target() {
+// expected-note@+1 {{'b' defined here}}
+  long double *a, b = 0;
+// expected-error@+1 {{'b' requires 128 bit size 'long double' type support, but device 'nvptx64-unknown-unknown' does not support it}}
+  a = &b;
+}
+template<bool>
+void dead_template_declare_target() {
+  long double *a, b = 0;
+  a = &b;
+}
+
+long double ld_return1a() { return 0; }
+void ld_arg1a(long double ld) {}
+
+typedef long double ld_ty;
+ld_ty ld_return1b() { return 0; }
+void ld_arg1b(ld_ty ld) {}
+
+static long double ld_return1c() { return 0; }
+static void ld_arg1c(long double ld) {}
+
+inline long double ld_return1d() { return 0; }
+inline void ld_arg1d(long double ld) {}
+
+#ifndef _ARCH_PPC
+__float128 ld_return2a() { return 0; }
+void ld_arg2a(__float128 ld) {}
+
+typedef __float128 fp128_ty;
+fp128_ty ld_return2b() { return 0; }
+void ld_arg2b(fp128_ty ld) {}
+#endif
+
 #pragma omp end declare target
 
+// TODO: There should not be an error here, dead_inline is never emitted.
+// expected-note@+1 3{{'f' defined here}}
+inline long double dead_inline(long double f) {
+#pragma omp target map(f)
+// TODO: We should not emit the same error message 3 times, here and elsewhere in this file.
+  // expected-error@+1 3{{'f' requires 128 bit size 'long double' type support, but device 'nvptx64-unknown-unknown' does not support it}}
+  f = 1;
+  return f;
+}
+
+// TODO: There should not be an error here, dead_static is never emitted.
+// expected-note@+1 3{{'f' defined here}}
+static long double dead_static(long double f) {
+#pragma omp target map(f)
+  // expected-error@+1 3{{'f' requires 128 bit size 'long double' type support, but device 'nvptx64-unknown-unknown' does not support it}}
+  f = 1;
+  return f;
+}
+
+template<typename T>
+long double dead_template(long double f) {
+#pragma omp target map(f)
+  f = 1;
+  return f;
+}
+
 #ifndef _ARCH_PPC
 // expected-note@+1 3{{'f' defined here}}
-__float128 foo1(__float128 f) {
+__float128 foo2(__float128 f) {
 #pragma omp target map(f)
   // expected-error@+1 3{{'f' requires 128 bit size '__float128' type support, but device 'nvptx64-unknown-unknown' does not support it}}
   f = 1;
   return f;
 }
 #else
 // expected-note@+1 3{{'f' defined here}}
-long double foo1(long double f) {
+long double foo3(long double f) {
 #pragma omp target map(f)
   // expected-error@+1 3{{'f' requires 128 bit size 'long double' type support, but device 'nvptx64-unknown-unknown' does not support it}}
   f = 1;
   return f;
 }
 #endif
 
 T foo3() {