[PPC] Convert tests to check 'target=<triple>'

[probinson]

Summary

Two tests checked 'ppc64be' which appears not to exist; the tests
pass on clang-ppc64be-linux-multistage so I assume they are fine
and just removed those UNSUPPORTED lines. All others were converted
to the new target= format, and get the same results on ppc bots as
before.

Part of the project to eliminate special handling for triples in lit
expressions.

[probinson]

Add people who have been active in lib/Target/PowerPC lately.

[probinson]

+PowerPC group
Ping

[probinson]

Ping, adding another recent ppc contributor.

[qiucf]

Need rebase after rG64e4d03c681a1c43ec22aee9ce32b784ed5aee9c?

[probinson]

Rebased

[probinson]

In D138954#3993858, @qiucf wrote:

Need rebase after rG64e4d03c681a1c43ec22aee9ce32b784ed5aee9c?

Indeed! Done.

[qiucf]

Thanks!

clang/test/CodeGen/PowerPC/ppc-mm-malloc-le.c

 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
-// REQUIRES: native, powerpc-registered-target
-// UNSUPPORTED: !powerpc64le-
+// REQUIRES: native, target=powerpc64le-{{.*}}
 // The stdlib.h included in mm_malloc.h references native system header
 // like: bits/libc-header-start.h or features.h, cross-compile it may
 // require installing target headers in build env, otherwise expecting
 // failures. So this test will focus on native build only.
 
 // RUN: %clang -target powerpc64le-unknown-linux-gnu -S -emit-llvm %s -fno-discard-value-names -mllvm -disable-llvm-optzns -o - | llvm-cxxfilt | FileCheck %s
 
 #include <mm_malloc.h>

clang/test/CodeGen/PowerPC/ppc-mm-malloc.c

 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
-// REQUIRES: native, powerpc-registered-target
-// UNSUPPORTED: !powerpc64-
+// REQUIRES: native, target=powerpc64-{{.*}}
 // The stdlib.h included in mm_malloc.h references native system header
 // like: bits/libc-header-start.h or features.h, cross-compile it may
 // require installing target headers in build env, otherwise expecting
 // failures. So this test will focus on native build only.
 
 // RUN: %clang -target powerpc64-unknown-linux-gnu -S -emit-llvm %s -fno-discard-value-names -mllvm -disable-llvm-optzns -o - | llvm-cxxfilt | FileCheck %s
 // RUN: %clang -target powerpc64-ibm-aix -S -emit-llvm %s -fno-discard-value-names -mllvm -disable-llvm-optzns -o - | llvm-cxxfilt | FileCheck %s
 

clang/test/CodeGen/no-builtin.cpp

 // RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-linux-gnu -S -emit-llvm -o - %s | FileCheck %s
-// UNSUPPORTED: ppc64be
 
 // CHECK-LABEL: define{{.*}} void @foo_no_mempcy() #0
 extern "C" void foo_no_mempcy() __attribute__((no_builtin("memcpy"))) {}
 
 // CHECK-LABEL: define{{.*}} void @foo_no_mempcy_twice() #0
 extern "C" void foo_no_mempcy_twice() __attribute__((no_builtin("memcpy"))) __attribute__((no_builtin("memcpy"))) {}
 
 // CHECK-LABEL: define{{.*}} void @foo_no_builtins() #1

clang/test/CodeGenCoroutines/pr56329.cpp

 // Test for PR56919. Tests the we won't contain the resumption of final suspend point.
 //
 // RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 %s -O3 -S -emit-llvm -o - | FileCheck %s
 // This test is expected to fail on PowerPC.
-// XFAIL: powerpc
+// XFAIL: target=powerpc{{.*}}
 
 #include "Inputs/coroutine.h"
 
 void _exit(int status) __attribute__ ((__noreturn__));
 
 class Promise;
 
 // An object that can be co_awaited, but we always resume immediately from

clang/test/Sema/no-builtin.cpp

 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsyntax-only -verify %s
-// UNSUPPORTED: ppc64be
 
 /// Prevent use of all builtins.
 void valid_attribute_all_1() __attribute__((no_builtin)) {}
 void valid_attribute_all_2() __attribute__((no_builtin())) {}
 
 /// Prevent use of specific builtins.
 void valid_attribute_function() __attribute__((no_builtin("memcpy"))) {}
 void valid_attribute_functions() __attribute__((no_builtin("memcpy"))) __attribute__((no_builtin("memcmp"))) {}

llvm/test/DebugInfo/debuglineinfo-path.ll

 ; Make sure that absolute source dir is detected correctly regardless of the platform.
 
 ; On powerpc llvm-nm describes win_func as a global variable, not a function. It breaks the test.
 ; It is not essential to DWARF path handling code we're testing here.
-; UNSUPPORTED: powerpc
+; UNSUPPORTED: target=powerpc{{.*}}
 ; REQUIRES: object-emission
 ; RUN: %llc_dwarf -O0 -filetype=obj -o %t < %s
 ; RUN: llvm-nm --radix=o %t | grep posix_absolute_func > %t.posix_absolute_func
 ; RUN: llvm-nm --radix=o %t | grep posix_relative_func > %t.posix_relative_func
 ; RUN: llvm-nm --radix=o %t | grep win_func > %t.win_func
 ; RUN: llvm-symbolizer --functions=linkage --inlining --no-demangle --obj %t < %t.posix_absolute_func | FileCheck %s --check-prefix=POSIX_A
 ; RUN: llvm-symbolizer --functions=linkage --inlining --no-demangle --obj %t < %t.posix_relative_func | FileCheck %s --check-prefix=POSIX_R
 ; RUN: llvm-symbolizer --functions=linkage --inlining --no-demangle --obj %t < %t.win_func | FileCheck %s --check-prefix=WIN