cmse-clear-float-mve.ll
7.08 KB
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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv8.1m.main-eabi -mattr=+8msecext,+mve.fp %s -o - | FileCheck %s --check-prefix=CHECK-SOFTFP
; RUN: llc -mtriple=thumbebv8.1m.main-eabi -mattr=+8msecext,+mve.fp %s -o - | FileCheck %s --check-prefix=CHECK-SOFTFP
; RUN: llc -mtriple=thumbv8.1m.main-eabi -mattr=+8msecext,+mve.fp --float-abi=hard %s -o - | FileCheck %s --check-prefix=CHECK-HARD
; RUN: llc -mtriple=thumbebv8.1m.main-eabi -mattr=+8msecext,+mve.fp --float-abi=hard %s -o - | FileCheck %s --check-prefix=CHECK-HARD
declare <8 x i16> @g0(...) #0
declare <4 x float> @g1(...) #0
;;
;; Test clearing before return to nonsecure state
;;
define <8 x i16> @f0() #1 {
; CHECK-SOFTFP-LABEL: f0:
; CHECK-SOFTFP: @ %bb.0: @ %entry
; CHECK-SOFTFP-NEXT: vstr fpcxtns, [sp, #-4]!
; CHECK-SOFTFP-NEXT: .save {r7, lr}
; CHECK-SOFTFP-NEXT: push {r7, lr}
; CHECK-SOFTFP-NEXT: .pad #4
; CHECK-SOFTFP-NEXT: sub sp, #4
; CHECK-SOFTFP-NEXT: bl g0
; CHECK-SOFTFP-NEXT: add sp, #4
; CHECK-SOFTFP-NEXT: pop.w {r7, lr}
; CHECK-SOFTFP-NEXT: vscclrm {s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, vpr}
; CHECK-SOFTFP-NEXT: vldr fpcxtns, [sp], #4
; CHECK-SOFTFP-NEXT: clrm {r12, apsr}
; CHECK-SOFTFP-NEXT: bxns lr
;
; CHECK-HARD-LABEL: f0:
; CHECK-HARD: @ %bb.0: @ %entry
; CHECK-HARD-NEXT: vstr fpcxtns, [sp, #-4]!
; CHECK-HARD-NEXT: .save {r7, lr}
; CHECK-HARD-NEXT: push {r7, lr}
; CHECK-HARD-NEXT: .pad #4
; CHECK-HARD-NEXT: sub sp, #4
; CHECK-HARD-NEXT: bl g0
; CHECK-HARD-NEXT: add sp, #4
; CHECK-HARD-NEXT: pop.w {r7, lr}
; CHECK-HARD-NEXT: vscclrm {s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, vpr}
; CHECK-HARD-NEXT: vldr fpcxtns, [sp], #4
; CHECK-HARD-NEXT: clrm {r0, r1, r2, r3, r12, apsr}
; CHECK-HARD-NEXT: bxns lr
entry:
%call = call <8 x i16> bitcast (<8 x i16> (...)* @g0 to <8 x i16> ()*)() #0
ret <8 x i16> %call
}
define <4 x float> @f1() #1 {
; CHECK-SOFTFP-LABEL: f1:
; CHECK-SOFTFP: @ %bb.0: @ %entry
; CHECK-SOFTFP-NEXT: vstr fpcxtns, [sp, #-4]!
; CHECK-SOFTFP-NEXT: .save {r7, lr}
; CHECK-SOFTFP-NEXT: push {r7, lr}
; CHECK-SOFTFP-NEXT: .pad #4
; CHECK-SOFTFP-NEXT: sub sp, #4
; CHECK-SOFTFP-NEXT: bl g1
; CHECK-SOFTFP-NEXT: add sp, #4
; CHECK-SOFTFP-NEXT: pop.w {r7, lr}
; CHECK-SOFTFP-NEXT: vscclrm {s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, vpr}
; CHECK-SOFTFP-NEXT: vldr fpcxtns, [sp], #4
; CHECK-SOFTFP-NEXT: clrm {r12, apsr}
; CHECK-SOFTFP-NEXT: bxns lr
;
; CHECK-HARD-LABEL: f1:
; CHECK-HARD: @ %bb.0: @ %entry
; CHECK-HARD-NEXT: vstr fpcxtns, [sp, #-4]!
; CHECK-HARD-NEXT: .save {r7, lr}
; CHECK-HARD-NEXT: push {r7, lr}
; CHECK-HARD-NEXT: .pad #4
; CHECK-HARD-NEXT: sub sp, #4
; CHECK-HARD-NEXT: bl g1
; CHECK-HARD-NEXT: add sp, #4
; CHECK-HARD-NEXT: pop.w {r7, lr}
; CHECK-HARD-NEXT: vscclrm {s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, vpr}
; CHECK-HARD-NEXT: vldr fpcxtns, [sp], #4
; CHECK-HARD-NEXT: clrm {r0, r1, r2, r3, r12, apsr}
; CHECK-HARD-NEXT: bxns lr
entry:
%call = call nnan ninf nsz <4 x float> bitcast (<4 x float> (...)* @g1 to <4 x float> ()*)() #0
ret <4 x float> %call
}
;;
;; Test clearing around nonsecure calls
;;
define void @f2(void (<8 x i16>)* nocapture %cb) #0 {
; CHECK-SOFTFP-LABEL: f2:
; CHECK-SOFTFP: @ %bb.0: @ %entry
; CHECK-SOFTFP-NEXT: .save {r4, lr}
; CHECK-SOFTFP-NEXT: push {r4, lr}
; CHECK-SOFTFP-NEXT: mov r4, r0
; CHECK-SOFTFP-NEXT: bl g0
; CHECK-SOFTFP-NEXT: push.w {r4, r5, r6, r7, r8, r9, r10, r11}
; CHECK-SOFTFP-NEXT: bic r4, r4, #1
; CHECK-SOFTFP-NEXT: sub sp, #136
; CHECK-SOFTFP-NEXT: vlstm sp
; CHECK-SOFTFP-NEXT: clrm {r5, r6, r7, r8, r9, r10, r11, r12, apsr}
; CHECK-SOFTFP-NEXT: blxns r4
; CHECK-SOFTFP-NEXT: vlldm sp
; CHECK-SOFTFP-NEXT: add sp, #136
; CHECK-SOFTFP-NEXT: pop.w {r4, r5, r6, r7, r8, r9, r10, r11}
; CHECK-SOFTFP-NEXT: pop {r4, pc}
;
; CHECK-HARD-LABEL: f2:
; CHECK-HARD: @ %bb.0: @ %entry
; CHECK-HARD-NEXT: .save {r4, lr}
; CHECK-HARD-NEXT: push {r4, lr}
; CHECK-HARD-NEXT: mov r4, r0
; CHECK-HARD-NEXT: bl g0
; CHECK-HARD-NEXT: push.w {r4, r5, r6, r7, r8, r9, r10, r11}
; CHECK-HARD-NEXT: bic r4, r4, #1
; CHECK-HARD-NEXT: vpush {s16, s17, s18, s19, s20, s21, s22, s23, s24, s25, s26, s27, s28, s29, s30, s31}
; CHECK-HARD-NEXT: vscclrm {s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, s16, s17, s18, s19, s20, s21, s22, s23, s24, s25, s26, s27, s28, s29, s30, s31, vpr}
; CHECK-HARD-NEXT: vstr fpcxts, [sp, #-8]!
; CHECK-HARD-NEXT: clrm {r0, r1, r2, r3, r5, r6, r7, r8, r9, r10, r11, r12, apsr}
; CHECK-HARD-NEXT: blxns r4
; CHECK-HARD-NEXT: vldr fpcxts, [sp], #8
; CHECK-HARD-NEXT: vpop {s16, s17, s18, s19, s20, s21, s22, s23, s24, s25, s26, s27, s28, s29, s30, s31}
; CHECK-HARD-NEXT: pop.w {r4, r5, r6, r7, r8, r9, r10, r11}
; CHECK-HARD-NEXT: pop {r4, pc}
entry:
%call = tail call <8 x i16> bitcast (<8 x i16> (...)* @g0 to <8 x i16> ()*)() #0
tail call void %cb(<8 x i16> %call) #2
ret void
}
define void @f3(void (<4 x float>)* nocapture %cb) #0 {
; CHECK-SOFTFP-LABEL: f3:
; CHECK-SOFTFP: @ %bb.0: @ %entry
; CHECK-SOFTFP-NEXT: .save {r4, lr}
; CHECK-SOFTFP-NEXT: push {r4, lr}
; CHECK-SOFTFP-NEXT: mov r4, r0
; CHECK-SOFTFP-NEXT: bl g1
; CHECK-SOFTFP-NEXT: push.w {r4, r5, r6, r7, r8, r9, r10, r11}
; CHECK-SOFTFP-NEXT: bic r4, r4, #1
; CHECK-SOFTFP-NEXT: sub sp, #136
; CHECK-SOFTFP-NEXT: vlstm sp
; CHECK-SOFTFP-NEXT: clrm {r5, r6, r7, r8, r9, r10, r11, r12, apsr}
; CHECK-SOFTFP-NEXT: blxns r4
; CHECK-SOFTFP-NEXT: vlldm sp
; CHECK-SOFTFP-NEXT: add sp, #136
; CHECK-SOFTFP-NEXT: pop.w {r4, r5, r6, r7, r8, r9, r10, r11}
; CHECK-SOFTFP-NEXT: pop {r4, pc}
;
; CHECK-HARD-LABEL: f3:
; CHECK-HARD: @ %bb.0: @ %entry
; CHECK-HARD-NEXT: .save {r4, lr}
; CHECK-HARD-NEXT: push {r4, lr}
; CHECK-HARD-NEXT: mov r4, r0
; CHECK-HARD-NEXT: bl g1
; CHECK-HARD-NEXT: push.w {r4, r5, r6, r7, r8, r9, r10, r11}
; CHECK-HARD-NEXT: bic r4, r4, #1
; CHECK-HARD-NEXT: vpush {s16, s17, s18, s19, s20, s21, s22, s23, s24, s25, s26, s27, s28, s29, s30, s31}
; CHECK-HARD-NEXT: vscclrm {s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, s16, s17, s18, s19, s20, s21, s22, s23, s24, s25, s26, s27, s28, s29, s30, s31, vpr}
; CHECK-HARD-NEXT: vstr fpcxts, [sp, #-8]!
; CHECK-HARD-NEXT: clrm {r0, r1, r2, r3, r5, r6, r7, r8, r9, r10, r11, r12, apsr}
; CHECK-HARD-NEXT: blxns r4
; CHECK-HARD-NEXT: vldr fpcxts, [sp], #8
; CHECK-HARD-NEXT: vpop {s16, s17, s18, s19, s20, s21, s22, s23, s24, s25, s26, s27, s28, s29, s30, s31}
; CHECK-HARD-NEXT: pop.w {r4, r5, r6, r7, r8, r9, r10, r11}
; CHECK-HARD-NEXT: pop {r4, pc}
entry:
%call = tail call nnan ninf nsz <4 x float> bitcast (<4 x float> (...)* @g1 to <4 x float> ()*)() #0
tail call void %cb(<4 x float> %call) #2
ret void
}
attributes #0 = { nounwind }
attributes #1 = { nounwind "cmse_nonsecure_entry" }
attributes #2 = { nounwind "cmse_nonsecure_call" }