]>
git.proxmox.com Git - rustc.git/blob - src/test/codegen/consts.rs
1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // compile-flags: -C no-prepopulate-passes
13 #![crate_type = "lib"]
14 #![feature(rustc_attrs)]
16 // Below, these constants are defined as enum variants that by itself would
17 // have a lower alignment than the enum type. Ensure that we mark them
18 // correctly with the higher alignment of the enum.
20 // CHECK: @STATIC = {{.*}}, align 4
22 // This checks the constants from inline_enum_const
23 // CHECK: @const{{[0-9]+}} = {{.*}}, align 2
25 // This checks the constants from {low,high}_align_const, they share the same
26 // constant, but the alignment differs, so the higher one should be used
27 // CHECK: @const{{[0-9]+}} = {{.*}}, align 4
29 #[derive(Copy, Clone)]
31 // repr(i16) is required for the {low,high}_align_const test
39 pub static STATIC
: E
<i16, i32> = E
::A(0);
41 // CHECK-LABEL: @static_enum_const
43 #[rustc_no_mir] // FIXME #27840 MIR has different codegen.
44 pub fn static_enum_const() -> E
<i16, i32> {
48 // CHECK-LABEL: @inline_enum_const
50 #[rustc_no_mir] // FIXME #27840 MIR has different codegen.
51 pub fn inline_enum_const() -> E
<i8, i16> {
55 // CHECK-LABEL: @low_align_const
57 #[rustc_no_mir] // FIXME #27840 MIR has different codegen.
58 pub fn low_align_const() -> E
<i16, [i16; 3]> {
59 // Check that low_align_const and high_align_const use the same constant
60 // CHECK: call void @llvm.memcpy.{{.*}}(i8* %{{[0-9]+}}, i8* {{.*}} [[LOW_HIGH:@const[0-9]+]]
64 // CHECK-LABEL: @high_align_const
66 #[rustc_no_mir] // FIXME #27840 MIR has different codegen.
67 pub fn high_align_const() -> E
<i16, i32> {
68 // Check that low_align_const and high_align_const use the same constant
69 // CHECK: call void @llvm.memcpy.{{.*}}(i8* %{{[0-9]}}, i8* {{.*}} [[LOW_HIGH]]