llvm/clang/test/CodeGen/align-param.c

// RUN: %clang_cc1 -emit-llvm -triple i386-apple-macosx10.7.2 < %s | FileCheck %s

// The preferred alignment for a long long on x86-32 is 8; make sure the
// alloca for x uses that alignment.
int test (long long x) {
  return (int)x;
}
// CHECK-LABEL: define{{.*}} i32 @test
// CHECK: alloca i64, align 8


// Make sure we honor the aligned attribute.
struct X { int x,y,z,a; };
int test2(struct X x __attribute((aligned(16)))) {
  return x.z;
}
// CHECK-LABEL: define{{.*}} i32 @test2
// CHECK: alloca %struct.X, align 16