xref: /llvm-project/llvm/test/CodeGen/CSKY/intrinsic.ll (revision 75c3c6ac15f520bde7353383117292ac3d0e1cc2) 
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -verify-machineinstrs -csky-no-aliases -mattr=+e2 -mattr=+2e3 < %s -mtriple=csky | FileCheck %s
3
4define i32 @ctlz_0(i32 %x) {
5; CHECK-LABEL: ctlz_0:
6; CHECK:       # %bb.0: # %entry
7; CHECK-NEXT:    ff1.32 a0, a0
8; CHECK-NEXT:    rts16
9entry:
10  %nlz = call i32 @llvm.ctlz.i32(i32 %x, i1 0)
11  ret i32 %nlz
12}
13
14define i32 @ctlz_1(i32 %x) {
15; CHECK-LABEL: ctlz_1:
16; CHECK:       # %bb.0: # %entry
17; CHECK-NEXT:    ff1.32 a0, a0
18; CHECK-NEXT:    rts16
19entry:
20  %nlz = call i32 @llvm.ctlz.i32(i32 %x, i1 1)
21  ret i32 %nlz
22}
23
24define i32 @cttz_0(i32 %x) {
25; CHECK-LABEL: cttz_0:
26; CHECK:       # %bb.0: # %entry
27; CHECK-NEXT:    brev32 a0, a0
28; CHECK-NEXT:    ff1.32 a0, a0
29; CHECK-NEXT:    rts16
30entry:
31  %ntz = call i32 @llvm.cttz.i32(i32 %x, i1 0)
32  ret i32 %ntz
33}
34
35define i32 @cttz_1(i32 %x) {
36; CHECK-LABEL: cttz_1:
37; CHECK:       # %bb.0: # %entry
38; CHECK-NEXT:    brev32 a0, a0
39; CHECK-NEXT:    ff1.32 a0, a0
40; CHECK-NEXT:    rts16
41entry:
42  %ntz = call i32 @llvm.cttz.i32(i32 %x, i1 1)
43  ret i32 %ntz
44}
45
46define i32 @bswap(i32 %x) {
47; CHECK-LABEL: bswap:
48; CHECK:       # %bb.0: # %entry
49; CHECK-NEXT:    revb16 a0, a0
50; CHECK-NEXT:    rts16
51entry:
52  %revb32 = call i32 @llvm.bswap.i32(i32 %x)
53  ret i32 %revb32
54}
55
56define i16 @bswap16(i16 %x) {
57; CHECK-LABEL: bswap16:
58; CHECK:       # %bb.0: # %entry
59; CHECK-NEXT:    revb16 a0, a0
60; CHECK-NEXT:    lsri16 a0, a0, 16
61; CHECK-NEXT:    rts16
62entry:
63  %revb16 = call i16 @llvm.bswap.i16(i16 %x)
64  ret i16 %revb16
65}
66
67define i32 @bitreverse_32(i32 %x) {
68; CHECK-LABEL: bitreverse_32:
69; CHECK:       # %bb.0: # %entry
70; CHECK-NEXT:    brev32 a0, a0
71; CHECK-NEXT:    rts16
72entry:
73  %brev32 = call i32 @llvm.bitreverse.i32(i32 %x)
74  ret i32 %brev32
75}
76
77define i16 @bitreverse_16(i16 %x) {
78; CHECK-LABEL: bitreverse_16:
79; CHECK:       # %bb.0: # %entry
80; CHECK-NEXT:    brev32 a0, a0
81; CHECK-NEXT:    lsri16 a0, a0, 16
82; CHECK-NEXT:    rts16
83entry:
84  %brev = call i16 @llvm.bitreverse.i16(i16 %x)
85  ret i16 %brev
86}
87
88declare i32 @llvm.bswap.i32(i32)
89declare i16 @llvm.bswap.i16(i16)
90declare i32 @llvm.ctlz.i32 (i32, i1)
91declare i32 @llvm.cttz.i32 (i32, i1)
92declare i32 @llvm.bitreverse.i32(i32)
93declare i16 @llvm.bitreverse.i16(i16)
94