[inline asm] Add a test case for r180873. Test case needs to be on the clang

side because we need an inline asm diagnostics handler in place.  Unfortunately,
we emit a .s file because we need to build the SelectionDAG to hit the backend
issue.
rdar://13446483

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180874 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/arm-asm-diag.c b/test/CodeGen/arm-asm-diag.c
new file mode 100644 (file)
index 0000000..75fbad6
--- /dev/null
+++ b/test/CodeGen/arm-asm-diag.c
@@ -0,0 +1,23 @@
+// REQUIRES: arm-registered-target
+// RUN: %clang_cc1 -triple armv7 %s -S -o /dev/null 2>&1 | Filecheck %s
+
+// rdar://13446483
+typedef __attribute__((neon_vector_type(2))) long long int64x2_t;
+typedef struct int64x2x4_t {
+  int64x2_t val[4];
+} int64x2x4_t;
+int64x2x4_t t1(const long long a[]) {
+  int64x2x4_t r;
+  __asm__("vldm %[a], { %q[r0], %q[r1], %q[r2], %q[r3] }"
+          : [r0] "=r"(r.val[0]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}}
+            [r1] "=r"(r.val[1]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}}
+            [r2] "=r"(r.val[2]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}}
+            [r3] "=r"(r.val[3])  // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}}
+          : [a] "r"(a));
+  return r;
+}
+// We should see all four errors, rather than report a fatal error after the first.
+// CHECK: error: non-trivial scalar-to-vector conversion, possible invalid constraint for vector type
+// CHECK: error: non-trivial scalar-to-vector conversion, possible invalid constraint for vector type
+// CHECK: error: non-trivial scalar-to-vector conversion, possible invalid constraint for vector type
+// CHECK: error: non-trivial scalar-to-vector conversion, possible invalid constraint for vector type