[AArch64] Enable A53 erratum workaround (835769) by default for Android targets

llvm-svn: 219933
diff --git a/clang/test/CodeGen/aarch64-fix-cortex-a53-835769.c b/clang/test/CodeGen/aarch64-fix-cortex-a53-835769.c
new file mode 100644
index 0000000..7ad1240
--- /dev/null
+++ b/clang/test/CodeGen/aarch64-fix-cortex-a53-835769.c
@@ -0,0 +1,27 @@
+// REQUIRES: aarch64-registered-target
+
+// RUN: %clang -O3 -target aarch64-linux-eabi %s -S -o- \
+// RUN:   | FileCheck --check-prefix=CHECK-NO --check-prefix=CHECK %s
+// RUN: %clang -O3 -target aarch64-linux-eabi -mfix-cortex-a53-835769 %s -S -o- 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-YES --check-prefix=CHECK %s
+// RUN: %clang -O3 -target aarch64-linux-eabi -mno-fix-cortex-a53-835769 %s -S -o- 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-NO --check-prefix=CHECK %s
+
+// RUN: %clang -O3 -target aarch64-android-eabi %s -S -o- \
+// RUN:   | FileCheck --check-prefix=CHECK-YES --check-prefix=CHECK %s
+// RUN: %clang -O3 -target aarch64-android-eabi -mfix-cortex-a53-835769 %s -S -o- \
+// RUN:   | FileCheck --check-prefix=CHECK-YES --check-prefix=CHECK %s
+// RUN: %clang -O3 -target aarch64-android-eabi -mno-fix-cortex-a53-835769 %s -S -o- \
+// RUN:   | FileCheck --check-prefix=CHECK-NO --check-prefix=CHECK %s
+
+typedef long int64_t;
+
+int64_t f_load_madd_64(int64_t a, int64_t b, int64_t *c) {
+    int64_t result = a+b*(*c);
+    return result;
+}
+
+// CHECK: ldr
+// CHECK-YES-NEXT: nop
+// CHECK-NO-NEXT-NOT: nop
+// CHECK-NEXT: madd