xref: /llvm-project/llvm/test/CodeGen/LoongArch/fp-reciprocal.ll (revision fb9d67636ae06c02f2235ad2ff5826599c86eaf9)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc --mtriple=loongarch32 --mattr=+f,-d < %s | FileCheck %s --check-prefix=LA32F
3; RUN: llc --mtriple=loongarch32 --mattr=+d < %s | FileCheck %s --check-prefix=LA32D
4; RUN: llc --mtriple=loongarch64 --mattr=+f,-d < %s | FileCheck %s --check-prefix=LA64F
5; RUN: llc --mtriple=loongarch64 --mattr=+d < %s | FileCheck %s --check-prefix=LA64D
6
7
8define float @f32_reciprocal(float %a) nounwind {
9; LA32F-LABEL: f32_reciprocal:
10; LA32F:       # %bb.0:
11; LA32F-NEXT:    frecip.s $fa0, $fa0
12; LA32F-NEXT:    ret
13;
14; LA32D-LABEL: f32_reciprocal:
15; LA32D:       # %bb.0:
16; LA32D-NEXT:    frecip.s $fa0, $fa0
17; LA32D-NEXT:    ret
18;
19; LA64F-LABEL: f32_reciprocal:
20; LA64F:       # %bb.0:
21; LA64F-NEXT:    frecip.s $fa0, $fa0
22; LA64F-NEXT:    ret
23;
24; LA64D-LABEL: f32_reciprocal:
25; LA64D:       # %bb.0:
26; LA64D-NEXT:    frecip.s $fa0, $fa0
27; LA64D-NEXT:    ret
28  %1 = fdiv float 1.0, %a
29  ret float %1
30}
31
32define double @f64_reciprocal(double %a) nounwind {
33; LA32F-LABEL: f64_reciprocal:
34; LA32F:       # %bb.0:
35; LA32F-NEXT:    addi.w $sp, $sp, -16
36; LA32F-NEXT:    st.w $ra, $sp, 12 # 4-byte Folded Spill
37; LA32F-NEXT:    move $a3, $a1
38; LA32F-NEXT:    move $a2, $a0
39; LA32F-NEXT:    lu12i.w $a1, 261888
40; LA32F-NEXT:    move $a0, $zero
41; LA32F-NEXT:    bl %plt(__divdf3)
42; LA32F-NEXT:    ld.w $ra, $sp, 12 # 4-byte Folded Reload
43; LA32F-NEXT:    addi.w $sp, $sp, 16
44; LA32F-NEXT:    ret
45;
46; LA32D-LABEL: f64_reciprocal:
47; LA32D:       # %bb.0:
48; LA32D-NEXT:    frecip.d $fa0, $fa0
49; LA32D-NEXT:    ret
50;
51; LA64F-LABEL: f64_reciprocal:
52; LA64F:       # %bb.0:
53; LA64F-NEXT:    addi.d $sp, $sp, -16
54; LA64F-NEXT:    st.d $ra, $sp, 8 # 8-byte Folded Spill
55; LA64F-NEXT:    move $a1, $a0
56; LA64F-NEXT:    lu52i.d $a0, $zero, 1023
57; LA64F-NEXT:    bl %plt(__divdf3)
58; LA64F-NEXT:    ld.d $ra, $sp, 8 # 8-byte Folded Reload
59; LA64F-NEXT:    addi.d $sp, $sp, 16
60; LA64F-NEXT:    ret
61;
62; LA64D-LABEL: f64_reciprocal:
63; LA64D:       # %bb.0:
64; LA64D-NEXT:    frecip.d $fa0, $fa0
65; LA64D-NEXT:    ret
66  %1 = fdiv double 1.0, %a
67  ret double %1
68}
69