xref: /llvm-project/llvm/test/CodeGen/LoongArch/zext-with-load-is-free.ll (revision 9d4f7f44b64d87d1068859906f43b7ce03a7388b)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
2; RUN: llc --mtriple=loongarch32 -mattr=+d -verify-machineinstrs < %s \
3; RUN:   | FileCheck %s --check-prefix=LA32
4; RUN: llc --mtriple=loongarch64 -mattr=+d -verify-machineinstrs < %s \
5; RUN:   | FileCheck %s --check-prefix=LA64
6
7define zeroext i8 @test_zext_i8(ptr %p) nounwind {
8; LA32-LABEL: test_zext_i8:
9; LA32:       # %bb.0:
10; LA32-NEXT:    ld.bu $a0, $a0, 0
11; LA32-NEXT:    ret
12;
13; LA64-LABEL: test_zext_i8:
14; LA64:       # %bb.0:
15; LA64-NEXT:    ld.bu $a0, $a0, 0
16; LA64-NEXT:    ret
17  %a = load i8, ptr %p, align 1
18  br label %exit
19exit:
20  ret i8 %a
21}
22
23define zeroext i16 @test_zext_i16(ptr %p) nounwind {
24; LA32-LABEL: test_zext_i16:
25; LA32:       # %bb.0:
26; LA32-NEXT:    ld.bu $a1, $a0, 1
27; LA32-NEXT:    ld.bu $a0, $a0, 0
28; LA32-NEXT:    slli.w $a1, $a1, 8
29; LA32-NEXT:    or $a0, $a1, $a0
30; LA32-NEXT:    ret
31;
32; LA64-LABEL: test_zext_i16:
33; LA64:       # %bb.0:
34; LA64-NEXT:    ld.hu $a0, $a0, 0
35; LA64-NEXT:    ret
36  %a = load i16, ptr %p, align 1
37  br label %exit
38exit:
39  ret i16 %a
40}
41