1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv64 -mattr=+zbb -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV64ZBB
declare i32 @llvm.riscv.orc.b.i32(i32)
define signext i32 @orcb32(i32 signext %a) nounwind {
; RV64ZBB-LABEL: orcb32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: orc.b a0, a0
; RV64ZBB-NEXT: sext.w a0, a0
; RV64ZBB-NEXT: ret
%tmp = call i32 @llvm.riscv.orc.b.i32(i32 %a)
ret i32 %tmp
}
define zeroext i32 @orcb32_zext(i32 zeroext %a) nounwind {
; RV64ZBB-LABEL: orcb32_zext:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: orc.b a0, a0
; RV64ZBB-NEXT: ret
%tmp = call i32 @llvm.riscv.orc.b.i32(i32 %a)
ret i32 %tmp
}
; Second and+or is redundant with the first, make sure we remove them.
define signext i32 @orcb32_knownbits(i32 signext %a) nounwind {
; RV64ZBB-LABEL: orcb32_knownbits:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: lui a1, 1044480
; RV64ZBB-NEXT: and a0, a0, a1
; RV64ZBB-NEXT: lui a1, 2048
; RV64ZBB-NEXT: addiw a1, a1, 1
; RV64ZBB-NEXT: or a0, a0, a1
; RV64ZBB-NEXT: orc.b a0, a0
; RV64ZBB-NEXT: sext.w a0, a0
; RV64ZBB-NEXT: ret
%tmp = and i32 %a, 4278190080 ; 0xFF000000
%tmp2 = or i32 %tmp, 8388609 ; 0x800001
%tmp3 = call i32 @llvm.riscv.orc.b.i32(i32 %tmp2)
%tmp4 = and i32 %tmp3, 4278190080 ; 0xFF000000
%tmp5 = or i32 %tmp4, 16711935 ; 0xFF00FF
ret i32 %tmp5
}
declare i64 @llvm.riscv.orc.b.i64(i64)
define i64 @orcb64(i64 %a) nounwind {
; RV64ZBB-LABEL: orcb64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: orc.b a0, a0
; RV64ZBB-NEXT: ret
%tmp = call i64 @llvm.riscv.orc.b.i64(i64 %a)
ret i64 %tmp
}
; Second and+or is redundant with the first, make sure we remove them.
define i64 @orcb64_knownbits(i64 %a) nounwind {
; RV64ZBB-LABEL: orcb64_knownbits:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: lui a1, 65535
; RV64ZBB-NEXT: slli a1, a1, 12
; RV64ZBB-NEXT: and a0, a0, a1
; RV64ZBB-NEXT: lui a1, 131073
; RV64ZBB-NEXT: slli a1, a1, 13
; RV64ZBB-NEXT: addi a1, a1, 1
; RV64ZBB-NEXT: slli a1, a1, 20
; RV64ZBB-NEXT: addi a1, a1, 8
; RV64ZBB-NEXT: or a0, a0, a1
; RV64ZBB-NEXT: orc.b a0, a0
; RV64ZBB-NEXT: ret
%tmp = and i64 %a, 1099494850560 ; 0x000000ffff000000
%tmp2 = or i64 %tmp, 4611721202800525320 ; 0x4000200000100008
%tmp3 = call i64 @llvm.riscv.orc.b.i64(i64 %tmp2)
%tmp4 = and i64 %tmp3, 1099494850560 ; 0x000000ffff000000
%tmp5 = or i64 %tmp4, 18374966855153418495 ; 0xff00ff0000ff00ff
ret i64 %tmp5
}
|
