Add TargetInfo for 32-bit and 64-bit RenderScript

Summary:
The TargetInfo for 'renderscript32' and 'renderscript64' ArchTypes are
subclasses of ARMleTargetInfo and AArch64leTargetInfo respectively.

RenderScript32TargetInfo modifies the ARM ABI to set LongWidth and
LongAlign to be 64-bits.  Other than this modification, the underlying
TargetInfo base classes is initialized as if they have "armv7" and
"aarch64" architecture type respectively.

Reviewers: rsmith, echristo

Subscribers: aemerson, tberghammer, cfe-commits, danalbert, mehdi_amini, srhines

Differential Revision: http://reviews.llvm.org/D21334

llvm-svn: 274409
diff --git a/clang/test/CodeGen/renderscript.c b/clang/test/CodeGen/renderscript.c
new file mode 100644
index 0000000..d47750a
--- /dev/null
+++ b/clang/test/CodeGen/renderscript.c
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 %s -triple=renderscript32-none-linux-gnueabi -emit-llvm -o - -Werror | FileCheck %s -check-prefix=CHECK-RS32
+// RUN: %clang_cc1 %s -triple=renderscript64-none-linux-android -emit-llvm -o - -Werror | FileCheck %s -check-prefix=CHECK-RS64
+// RUN: %clang_cc1 %s -triple=armv7-none-linux-gnueabi -emit-llvm -o - -Werror | FileCheck %s -check-prefix=CHECK-ARM
+
+// Ensure that the bitcode has the correct triple
+// CHECK-RS32: target triple = "armv7-none-linux-gnueabi"
+// CHECK-RS64: target triple = "aarch64-none-linux-android"
+// CHECK-ARM: target triple = "armv7-none-linux-gnueabi"
+
+// Ensure that long data type has 8-byte size and alignment in RenderScript
+#ifdef __RENDERSCRIPT__
+#define LONG_WIDTH_AND_ALIGN 8
+#else
+#define LONG_WIDTH_AND_ALIGN 4
+#endif
+
+_Static_assert(sizeof(long) == LONG_WIDTH_AND_ALIGN, "sizeof long is wrong");
+_Static_assert(_Alignof(long) == LONG_WIDTH_AND_ALIGN, "sizeof long is wrong");
+
+// CHECK-RS32: i64 @test_long(i64 %v)
+// CHECK-RS64: i64 @test_long(i64 %v)
+// CHECK-ARM: i32 @test_long(i32 %v)
+long test_long(long v) {
+  return v + 1;
+}