AArch64: simplify calling conventions slightly.

We can eliminate the custom C++ code in favour of some TableGen to
check the same things. Functionality should be identical, except for a
buffer overrun that was present in the C++ code and meant webkit
failed if any small argument needed to be passed on the stack.

llvm-svn: 209636

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/AArch64/arm64-patchpoint.ll b/llvm/test/CodeGen/AArch64/arm64-patchpoint.ll
index 9ef1d778a31..039cdfcc385 100644
--- a/llvm/test/CodeGen/AArch64/arm64-patchpoint.ll
+++ b/llvm/test/CodeGen/AArch64/arm64-patchpoint.ll
@@ -161,3 +161,11 @@ define void @clobberScratch(i32* %p) {
 declare void @llvm.experimental.stackmap(i64, i32, ...)
 declare void @llvm.experimental.patchpoint.void(i64, i32, i8*, i32, ...)
 declare i64 @llvm.experimental.patchpoint.i64(i64, i32, i8*, i32, ...)
+
+; CHECK-LABEL: test_i16:
+; CHECK: ldrh [[BREG:w[0-9]+]], [sp]
+; CHECK: add w0, w0, [[BREG]]
+define webkit_jscc i16 @test_i16(i16 zeroext %a, i16 zeroext %b) {
+  %sum = add i16 %a, %b
+  ret i16 %sum
+}