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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=CI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=CI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -enable-unsafe-fp-math -verify-machineinstrs < %s | FileCheck -check-prefix=GCN-UNSAFE -check-prefix=SI-UNSAFE -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -enable-unsafe-fp-math -verify-machineinstrs < %s | FileCheck -check-prefix=GCN-UNSAFE -check-prefix=VI-UNSAFE -check-prefix=FUNC %s
declare double @llvm.fabs.f64(double) #0
declare double @llvm.floor.f64(double) #0
; FUNC-LABEL: {{^}}fract_f64:
; SI-DAG: v_fract_f64_e32 [[FRC:v\[[0-9]+:[0-9]+\]]], v{{\[}}[[LO:[0-9]+]]:[[HI:[0-9]+]]]
; SI-DAG: v_mov_b32_e32 v[[UPLO:[0-9]+]], -1
; SI-DAG: v_mov_b32_e32 v[[UPHI:[0-9]+]], 0x3fefffff
; SI-DAG: v_min_f64 v{{\[}}[[MINLO:[0-9]+]]:[[MINHI:[0-9]+]]], [[FRC]], v{{\[}}[[UPLO]]:[[UPHI]]]
; SI-DAG: v_cmp_class_f64_e64 vcc, v{{\[}}[[LO]]:[[HI]]], 3
; SI: v_cndmask_b32_e32 v[[RESLO:[0-9]+]], v[[MINLO]], v[[LO]], vcc
; SI: v_cndmask_b32_e32 v[[RESHI:[0-9]+]], v[[MINHI]], v[[HI]], vcc
; SI: v_add_f64 [[SUB0:v\[[0-9]+:[0-9]+\]]], v{{\[}}[[LO]]:[[HI]]{{\]}}, -v{{\[}}[[RESLO]]:[[RESHI]]{{\]}}
; SI: v_add_f64 [[FRACT:v\[[0-9]+:[0-9]+\]]], v{{\[}}[[LO]]:[[HI]]{{\]}}, -[[SUB0]]
; CI: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]]
; CI: v_floor_f64_e32 [[FLOORX:v\[[0-9]+:[0-9]+\]]], [[X]]
; CI: v_add_f64 [[FRACT:v\[[0-9]+:[0-9]+\]]], [[X]], -[[FLOORX]]
; GCN-UNSAFE: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]]
; GCN-UNSAFE: v_fract_f64_e32 [[FRACT:v\[[0-9]+:[0-9]+\]]], [[X]]
; GCN: buffer_store_dwordx2 [[FRACT]]
define amdgpu_kernel void @fract_f64(double addrspace(1)* %out, double addrspace(1)* %src) #1 {
%x = load double, double addrspace(1)* %src
%floor.x = call double @llvm.floor.f64(double %x)
%fract = fsub double %x, %floor.x
store double %fract, double addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}fract_f64_neg:
; SI-DAG: v_fract_f64_e64 [[FRC:v\[[0-9]+:[0-9]+\]]], -v{{\[}}[[LO:[0-9]+]]:[[HI:[0-9]+]]]
; SI-DAG: v_mov_b32_e32 v[[UPLO:[0-9]+]], -1
; SI-DAG: v_mov_b32_e32 v[[UPHI:[0-9]+]], 0x3fefffff
; SI-DAG: v_min_f64 v{{\[}}[[MINLO:[0-9]+]]:[[MINHI:[0-9]+]]], [[FRC]], v{{\[}}[[UPLO]]:[[UPHI]]]
; SI-DAG: v_cmp_class_f64_e64 vcc, v{{\[}}[[LO]]:[[HI]]], 3
; SI: v_cndmask_b32_e32 v[[RESLO:[0-9]+]], v[[MINLO]], v[[LO]], vcc
; SI: v_cndmask_b32_e32 v[[RESHI:[0-9]+]], v[[MINHI]], v[[HI]], vcc
; SI: v_add_f64 [[SUB0:v\[[0-9]+:[0-9]+\]]], -v{{\[}}[[LO]]:[[HI]]{{\]}}, -v{{\[}}[[RESLO]]:[[RESHI]]{{\]}}
; SI: v_add_f64 [[FRACT:v\[[0-9]+:[0-9]+\]]], -v{{\[}}[[LO]]:[[HI]]{{\]}}, -[[SUB0]]
; CI: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]]
; CI: v_floor_f64_e64 [[FLOORX:v\[[0-9]+:[0-9]+\]]], -[[X]]
; CI: v_add_f64 [[FRACT:v\[[0-9]+:[0-9]+\]]], -[[X]], -[[FLOORX]]
; GCN-UNSAFE: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]]
; GCN-UNSAFE: v_fract_f64_e64 [[FRACT:v\[[0-9]+:[0-9]+\]]], -[[X]]
; GCN: buffer_store_dwordx2 [[FRACT]]
define amdgpu_kernel void @fract_f64_neg(double addrspace(1)* %out, double addrspace(1)* %src) #1 {
%x = load double, double addrspace(1)* %src
%neg.x = fsub double -0.0, %x
%floor.neg.x = call double @llvm.floor.f64(double %neg.x)
%fract = fsub double %neg.x, %floor.neg.x
store double %fract, double addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}fract_f64_neg_abs:
; SI-DAG: v_fract_f64_e64 [[FRC:v\[[0-9]+:[0-9]+\]]], -|v{{\[}}[[LO:[0-9]+]]:[[HI:[0-9]+]]]|
; SI-DAG: v_mov_b32_e32 v[[UPLO:[0-9]+]], -1
; SI-DAG: v_mov_b32_e32 v[[UPHI:[0-9]+]], 0x3fefffff
; SI-DAG: v_min_f64 v{{\[}}[[MINLO:[0-9]+]]:[[MINHI:[0-9]+]]], [[FRC]], v{{\[}}[[UPLO]]:[[UPHI]]]
; SI-DAG: v_cmp_class_f64_e64 vcc, v{{\[}}[[LO]]:[[HI]]], 3
; SI: v_cndmask_b32_e32 v[[RESLO:[0-9]+]], v[[MINLO]], v[[LO]], vcc
; SI: v_cndmask_b32_e32 v[[RESHI:[0-9]+]], v[[MINHI]], v[[HI]], vcc
; SI: v_add_f64 [[SUB0:v\[[0-9]+:[0-9]+\]]], -|v{{\[}}[[LO]]:[[HI]]{{\]}}|, -v{{\[}}[[RESLO]]:[[RESHI]]{{\]}}
; SI: v_add_f64 [[FRACT:v\[[0-9]+:[0-9]+\]]], -|v{{\[}}[[LO]]:[[HI]]{{\]}}|, -[[SUB0]]
; CI: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]]
; CI: v_floor_f64_e64 [[FLOORX:v\[[0-9]+:[0-9]+\]]], -|[[X]]|
; CI: v_add_f64 [[FRACT:v\[[0-9]+:[0-9]+\]]], -|[[X]]|, -[[FLOORX]]
; GCN-UNSAFE: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]]
; GCN-UNSAFE: v_fract_f64_e64 [[FRACT:v\[[0-9]+:[0-9]+\]]], -|[[X]]|
; GCN: buffer_store_dwordx2 [[FRACT]]
define amdgpu_kernel void @fract_f64_neg_abs(double addrspace(1)* %out, double addrspace(1)* %src) #1 {
%x = load double, double addrspace(1)* %src
%abs.x = call double @llvm.fabs.f64(double %x)
%neg.abs.x = fsub double -0.0, %abs.x
%floor.neg.abs.x = call double @llvm.floor.f64(double %neg.abs.x)
%fract = fsub double %neg.abs.x, %floor.neg.abs.x
store double %fract, double addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}multi_use_floor_fract_f64:
; VI-UNSAFE: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]]
; VI-UNSAFE-DAG: v_floor_f64_e32 [[FLOOR:v\[[0-9]+:[0-9]+\]]], [[X]]
; VI-UNSAFE-DAG: v_fract_f64_e32 [[FRACT:v\[[0-9]+:[0-9]+\]]], [[X]]
; VI-UNSAFE: buffer_store_dwordx2 [[FLOOR]]
; VI-UNSAFE: buffer_store_dwordx2 [[FRACT]]
define amdgpu_kernel void @multi_use_floor_fract_f64(double addrspace(1)* %out, double addrspace(1)* %src) #1 {
%x = load double, double addrspace(1)* %src
%floor.x = call double @llvm.floor.f64(double %x)
%fract = fsub double %x, %floor.x
store volatile double %floor.x, double addrspace(1)* %out
store volatile double %fract, double addrspace(1)* %out
ret void
}
attributes #0 = { nounwind readnone }
attributes #1 = { nounwind }
|
