src/test/codegen/issue-56927.rs

   1 // compile-flags: -C no-prepopulate-passes
   2
   3 #![crate_type="rlib"]
   4 use std::usize;
   5
   6 #[repr(align(16))]
   7 pub struct S {
   8     arr: [u32; 4],
   9 }
  10
  11 // CHECK-LABEL: @test1
  12 // CHECK: store i32 0, i32* %{{.+}}, align 16
  13 // CHECK: store i32 1, i32* %{{.+}}, align 4
  14 // CHECK: store i32 2, i32* %{{.+}}, align 8
  15 // CHECK: store i32 3, i32* %{{.+}}, align 4
  16 #[no_mangle]
  17 pub fn test1(s: &mut S) {
  18     s.arr[0] = 0;
  19     s.arr[1] = 1;
  20     s.arr[2] = 2;
  21     s.arr[3] = 3;
  22 }
  23
  24 // CHECK-LABEL: @test2
  25 // CHECK: store i32 4, i32* %{{.+}}, align 4
  26 #[allow(const_err)]
  27 #[no_mangle]
  28 pub fn test2(s: &mut S) {
  29     s.arr[usize::MAX / 4 + 1] = 4;
  30 }
  31
  32 // CHECK-LABEL: @test3
  33 // CHECK: store i32 5, i32* %{{.+}}, align 4
  34 #[no_mangle]
  35 pub fn test3(s: &mut S, i: usize) {
  36     s.arr[i] = 5;
  37 }
  38
  39 // CHECK-LABEL: @test4
  40 // CHECK: store i32 6, i32* %{{.+}}, align 4
  41 #[no_mangle]
  42 pub fn test4(s: &mut S) {
  43     s.arr = [6; 4];
  44 }