Subzero: Align the stack at the point of function calls.

crosstest/test_calling_conv.h

Index: crosstest/test_calling_conv.h
diff --git a/crosstest/test_calling_conv.h b/crosstest/test_calling_conv.h
new file mode 100644
index 0000000000000000000000000000000000000000..9b27428fb0f0e77e16c5012c76eb7802e6a2d2bd
--- /dev/null
+++ b/crosstest/test_calling_conv.h
@@ -0,0 +1,36 @@
+//===- subzero/crosstest/test_calling_conv.h - Test prototypes --*- C++ -*-===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the function prototypes for crosstesting the calling
+// convention.
+//
+//===----------------------------------------------------------------------===//
+
+#include "test_calling_conv.def"
+#include "vectors.h"
+
+typedef void (*CalleePtrTy)();
+extern CalleePtrTy Callee;
+extern size_t ArgNum;
+extern char *Buf;
+
+void caller_i();
+void caller_alloca_i();
+typedef void callee_i_Ty(int);
+callee_i_Ty callee_i;
+callee_i_Ty callee_alloca_i;
+
+void caller_vvvvv();
+typedef void (callee_vvvvv_Ty)(v4si32, v4si32, v4si32, v4si32, v4si32);
+callee_vvvvv_Ty callee_vvvvv;
+
+void caller_vlvlvfvdviv();
+typedef void(callee_vlvlvfvdviv_Ty)(v4f32, int64_t, v4f32, int64_t, v4f32,
+                                    float, v4f32, double, v4f32, int, v4f32);
+callee_vlvlvfvdviv_Ty callee_vlvlvfvdviv, Subzero_callee_vlvlvfvdviv;

[jvoung (off chromium), 2014/08/12 01:36:23]

wow =)

Well, my only suggestion is maybe test having 12 bytes in between the vectors
(e.g., change the second int64_t into: "int64_t, int"). Or was there a reason
that you have "v4f32, int64_t, v4f32, int64_t"?

[wala, 2014/08/12 02:56:09]

Done. There wasn't really a systematic reason for all the parameter types.