xref: /llvm-project/llvm/test/CodeGen/LoongArch/unaligned-access.ll (revision 9d4f7f44b64d87d1068859906f43b7ce03a7388b)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
2
3;; Test the ual feature which is similar to AArch64/arm64-strict-align.ll.
4
5; RUN: llc --mtriple=loongarch32 -mattr=+d < %s | FileCheck %s --check-prefix=LA32-ALIGNED
6; RUN: llc --mtriple=loongarch32 --mattr=+ual < %s | FileCheck %s --check-prefix=LA32-UNALIGNED
7; RUN: llc --mtriple=loongarch32 --mattr=-ual < %s | FileCheck %s --check-prefix=LA32-ALIGNED
8
9; RUN: llc --mtriple=loongarch64 -mattr=+d < %s | FileCheck %s --check-prefix=LA64-UNALIGNED
10; RUN: llc --mtriple=loongarch64 --mattr=+ual < %s | FileCheck %s --check-prefix=LA64-UNALIGNED
11; RUN: llc --mtriple=loongarch64 --mattr=-ual < %s | FileCheck %s --check-prefix=LA64-ALIGNED
12
13define i32 @f0(ptr %p) nounwind {
14; LA32-ALIGNED-LABEL: f0:
15; LA32-ALIGNED:       # %bb.0:
16; LA32-ALIGNED-NEXT:    ld.hu $a1, $a0, 2
17; LA32-ALIGNED-NEXT:    ld.hu $a0, $a0, 0
18; LA32-ALIGNED-NEXT:    slli.w $a1, $a1, 16
19; LA32-ALIGNED-NEXT:    or $a0, $a1, $a0
20; LA32-ALIGNED-NEXT:    ret
21;
22; LA32-UNALIGNED-LABEL: f0:
23; LA32-UNALIGNED:       # %bb.0:
24; LA32-UNALIGNED-NEXT:    ld.w $a0, $a0, 0
25; LA32-UNALIGNED-NEXT:    ret
26;
27; LA64-UNALIGNED-LABEL: f0:
28; LA64-UNALIGNED:       # %bb.0:
29; LA64-UNALIGNED-NEXT:    ld.w $a0, $a0, 0
30; LA64-UNALIGNED-NEXT:    ret
31;
32; LA64-ALIGNED-LABEL: f0:
33; LA64-ALIGNED:       # %bb.0:
34; LA64-ALIGNED-NEXT:    ld.h $a1, $a0, 2
35; LA64-ALIGNED-NEXT:    ld.hu $a0, $a0, 0
36; LA64-ALIGNED-NEXT:    slli.d $a1, $a1, 16
37; LA64-ALIGNED-NEXT:    or $a0, $a1, $a0
38; LA64-ALIGNED-NEXT:    ret
39  %tmp = load i32, ptr %p, align 2
40  ret i32 %tmp
41}
42
43define i64 @f1(ptr %p) nounwind {
44; LA32-ALIGNED-LABEL: f1:
45; LA32-ALIGNED:       # %bb.0:
46; LA32-ALIGNED-NEXT:    ld.w $a2, $a0, 0
47; LA32-ALIGNED-NEXT:    ld.w $a1, $a0, 4
48; LA32-ALIGNED-NEXT:    move $a0, $a2
49; LA32-ALIGNED-NEXT:    ret
50;
51; LA32-UNALIGNED-LABEL: f1:
52; LA32-UNALIGNED:       # %bb.0:
53; LA32-UNALIGNED-NEXT:    ld.w $a2, $a0, 0
54; LA32-UNALIGNED-NEXT:    ld.w $a1, $a0, 4
55; LA32-UNALIGNED-NEXT:    move $a0, $a2
56; LA32-UNALIGNED-NEXT:    ret
57;
58; LA64-UNALIGNED-LABEL: f1:
59; LA64-UNALIGNED:       # %bb.0:
60; LA64-UNALIGNED-NEXT:    ld.d $a0, $a0, 0
61; LA64-UNALIGNED-NEXT:    ret
62;
63; LA64-ALIGNED-LABEL: f1:
64; LA64-ALIGNED:       # %bb.0:
65; LA64-ALIGNED-NEXT:    ld.wu $a1, $a0, 4
66; LA64-ALIGNED-NEXT:    ld.wu $a0, $a0, 0
67; LA64-ALIGNED-NEXT:    slli.d $a1, $a1, 32
68; LA64-ALIGNED-NEXT:    or $a0, $a1, $a0
69; LA64-ALIGNED-NEXT:    ret
70  %tmp = load i64, ptr %p, align 4
71  ret i64 %tmp
72}
73