Remove some incorrect test suppressions

These don't actually require any registered backend to run.

This commit tests the water with a handful of fixes for what is a more
widespread problem.

llvm-svn: 212008

clang/test/CodeGen/altivec.c

@@ -1,4 +1,3 @@
-// REQUIRES: powerpc-registered-target
 // RUN: %clang_cc1 -faltivec -triple powerpc-unknown-unknown -emit-llvm %s -o - | FileCheck %s
 
 // Check initialization

clang/test/CodeGen/arm-metadata.c

@@ -1,4 +1,3 @@
-// REQUIRES: arm-registered-target
 // RUN: %clang_cc1 -triple armv7a-linux-gnueabi -emit-llvm -o - %s | FileCheck -check-prefix=DEFAULT %s
 // RUN: %clang_cc1 -triple armv7a-linux-gnueabi -emit-llvm -o - %s -fshort-enums | FileCheck -check-prefix=SHORT-ENUM %s
 // RUN: %clang_cc1 -triple armv7a-linux-gnueabi -emit-llvm -o - %s -fshort-wchar | FileCheck -check-prefix=SHORT-WCHAR %s

clang/test/CodeGen/powerpc_types.c

@@ -1,4 +1,3 @@
-// REQUIRES: powerpc-registered-target
 // RUN: %clang_cc1 -triple powerpc-unknown-freebsd -emit-llvm -o - %s| FileCheck -check-prefix=SVR4-CHECK %s
 
 #include <stdarg.h>

clang/test/CodeGen/ppc64-complex-parms.c

@@ -1,4 +1,3 @@
-// REQUIRES: powerpc-registered-target
 // RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
 
 float crealf(_Complex float);

clang/test/CodeGenCXX/aarch64-mangle-neon-vectors.cpp

@@ -1,4 +1,3 @@
-// REQUIRES: aarch64-registered-target
 // RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon %s -emit-llvm -o - | FileCheck %s
 
 typedef unsigned char uint8_t;

clang/test/CodeGenCXX/aarch64-neon.cpp

@@ -2,7 +2,7 @@
 // RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon \
 // RUN:   -ffp-contract=fast -S -O3 -o - %s | FileCheck %s
 
-// Test whether arm_neon.h can be used in .cpp file.
+// Test whether arm_neon.h works as expected in C++.
 
 #include "arm_neon.h"
 

clang/test/CodeGenCXX/copy-assign-synthesis-1.cpp

@@ -1,4 +1,3 @@
-// REQUIRES: x86-registered-target
 // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm %s -o - | \
 // RUN: FileCheck %s
 // RUN: %clang_cc1 -triple i386-apple-darwin -std=c++11 -emit-llvm %s -o - | \

clang/test/CodeGenCXX/int64_uint64.cpp

@@ -1,9 +1,7 @@
-// REQUIRES: arm-registered-target
 // RUN: %clang_cc1 -triple arm-linux-guneabi \
 // RUN:   -target-cpu cortex-a8 \
 // RUN:   -emit-llvm -w -O1 -o - %s | FileCheck --check-prefix=CHECK-ARM %s
 
-// REQUIRES: aarch64-registered-target
 // RUN: %clang_cc1 -triple arm64-linux-gnueabi \
 // RUN:   -target-feature +neon \
 // RUN:   -emit-llvm -w -O1 -o - %s | FileCheck --check-prefix=CHECK-AARCH64 %s