clang/test/CodeGen/misaligned-param.c

   1 // RUN: %clang_cc1 %s -std=c89 -triple i386-apple-darwin -emit-llvm -o - | FileCheck %s
   2 // Misaligned parameter must be memcpy'd to correctly aligned temporary.
   3
   4 struct s { int x; long double y; };
   5 int bar(struct s *, struct s *);
   6 long double foo(struct s x, int i, struct s y) {
   7 // CHECK: foo
   8 // CHECK: %x = alloca %struct.s, align 16
   9 // CHECK: %y = alloca %struct.s, align 16
  10 // CHECK: memcpy
  11 // CHECK: memcpy
  12 // CHECK: bar
  13   return bar(&x, &y);
  14 }