1 // REQUIRES: aarch64-registered-target
2 
3 // RUN: %clang_cc1 -triple arm64-windows -fms-compatibility -emit-llvm -S \
4 // RUN: -o - %s | FileCheck %s -check-prefix CHECK-ASM
5 
6 // RUN: %clang_cc1 -triple arm64-darwin -fms-compatibility -emit-llvm -S \
7 // RUN: -o - %s | FileCheck %s -check-prefix CHECK-ASM
8 
9 // RUN: %clang_cc1 -triple arm64-windows -fms-compatibility -emit-llvm \
10 // RUN: -o - %s | FileCheck %s -check-prefix CHECK-IR
11 
12 // RUN: %clang_cc1 -triple arm64-darwin -fms-compatibility -emit-llvm \
13 // RUN: -o - %s | FileCheck %s -check-prefix CHECK-IR
14 
15 // From winnt.h
16 #define ARM64_SYSREG(op0, op1, crn, crm, op2) \
17         ( ((op0 & 1) << 14) | \
18           ((op1 & 7) << 11) | \
19           ((crn & 15) << 7) | \
20           ((crm & 15) << 3) | \
21           ((op2 & 7) << 0) )
22 
23 #define ARM64_CNTVCT            ARM64_SYSREG(3,3,14, 0,2)  // Generic Timer counter register
24 #define ARM64_PMCCNTR_EL0       ARM64_SYSREG(3,3, 9,13,0)  // Cycle Count Register [CP15_PMCCNTR]
25 #define ARM64_PMSELR_EL0        ARM64_SYSREG(3,3, 9,12,5)  // Event Counter Selection Register [CP15_PMSELR]
26 #define ARM64_PMXEVCNTR_EL0     ARM64_SYSREG(3,3, 9,13,2)  // Event Count Register [CP15_PMXEVCNTR]
27 #define ARM64_PMXEVCNTRn_EL0(n) ARM64_SYSREG(3,3,14, 8+((n)/8), (n)%8)    // Direct Event Count Register [n/a]
28 #define ARM64_TPIDR_EL0         ARM64_SYSREG(3,3,13, 0,2)  // Thread ID Register, User Read/Write [CP15_TPIDRURW]
29 #define ARM64_TPIDRRO_EL0       ARM64_SYSREG(3,3,13, 0,3)  // Thread ID Register, User Read Only [CP15_TPIDRURO]
30 #define ARM64_TPIDR_EL1         ARM64_SYSREG(3,0,13, 0,4)  // Thread ID Register, Privileged Only [CP15_TPIDRPRW]
31 
32 // From intrin.h
33 __int64 _ReadStatusReg(int);
34 void _WriteStatusReg(int, __int64);
35 
36 void check_ReadWriteStatusReg(__int64 v) {
37   __int64 ret;
38   ret = _ReadStatusReg(ARM64_CNTVCT);
39 // CHECK-ASM: mrs     x8, CNTVCT_EL0
40 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2:.*]])
41 // CHECK-IR-NEXT: store i64 %[[VAR]]
42 
43   ret = _ReadStatusReg(ARM64_PMCCNTR_EL0);
44 // CHECK-ASM: mrs     x8, PMCCNTR_EL0
45 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD3:.*]])
46 // CHECK-IR-NEXT: store i64 %[[VAR]]
47 
48   ret = _ReadStatusReg(ARM64_PMSELR_EL0);
49 // CHECK-ASM: mrs     x8, PMSELR_EL0
50 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD4:.*]])
51 // CHECK-IR-NEXT: store i64 %[[VAR]]
52 
53   ret = _ReadStatusReg(ARM64_PMXEVCNTR_EL0);
54 // CHECK-ASM: mrs     x8, PMXEVCNTR_EL0
55 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD5:.*]])
56 // CHECK-IR-NEXT: store i64 %[[VAR]]
57 
58   ret = _ReadStatusReg(ARM64_PMXEVCNTRn_EL0(0));
59 // CHECK-ASM: mrs     x8, PMEVCNTR0_EL0
60 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD6:.*]])
61 // CHECK-IR-NEXT: store i64 %[[VAR]]
62 
63   ret = _ReadStatusReg(ARM64_PMXEVCNTRn_EL0(1));
64 // CHECK-ASM: mrs     x8, PMEVCNTR1_EL0
65 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD7:.*]])
66 // CHECK-IR-NEXT: store i64 %[[VAR]]
67 
68   ret = _ReadStatusReg(ARM64_PMXEVCNTRn_EL0(30));
69 // CHECK-ASM: mrs     x8, PMEVCNTR30_EL0
70 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD8:.*]])
71 // CHECK-IR-NEXT: store i64 %[[VAR]]
72 
73   ret = _ReadStatusReg(ARM64_TPIDR_EL0);
74 // CHECK-ASM: mrs     x8, TPIDR_EL0
75 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD9:.*]])
76 // CHECK-IR-NEXT: store i64 %[[VAR]]
77 
78   ret = _ReadStatusReg(ARM64_TPIDRRO_EL0);
79 // CHECK-ASM: mrs     x8, TPIDRRO_EL0
80 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD10:.*]])
81 // CHECK-IR-NEXT: store i64 %[[VAR]]
82 
83   ret = _ReadStatusReg(ARM64_TPIDR_EL1);
84 // CHECK-ASM: mrs     x8, TPIDR_EL1
85 // CHECK-IR: %[[VAR:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD11:.*]])
86 // CHECK-IR-NEXT: store i64 %[[VAR]]
87 
88 
89   _WriteStatusReg(ARM64_CNTVCT, v);
90 // CHECK-ASM: msr     S3_3_C14_C0_2, x8
91 // CHECK-IR: %[[VAR:.*]] = load i64,
92 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD2:.*]], i64 %[[VAR]])
93 
94   _WriteStatusReg(ARM64_PMCCNTR_EL0, v);
95 // CHECK-ASM: msr     PMCCNTR_EL0, x8
96 // CHECK-IR: %[[VAR:.*]] = load i64,
97 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD3:.*]], i64 %[[VAR]])
98 
99   _WriteStatusReg(ARM64_PMSELR_EL0, v);
100 // CHECK-ASM: msr     PMSELR_EL0, x8
101 // CHECK-IR: %[[VAR:.*]] = load i64,
102 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD4:.*]], i64 %[[VAR]])
103 
104   _WriteStatusReg(ARM64_PMXEVCNTR_EL0, v);
105 // CHECK-ASM: msr     PMXEVCNTR_EL0, x8
106 // CHECK-IR: %[[VAR:.*]] = load i64,
107 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD5:.*]], i64 %[[VAR]])
108 
109   _WriteStatusReg(ARM64_PMXEVCNTRn_EL0(0), v);
110 // CHECK-ASM: msr     PMEVCNTR0_EL0, x8
111 // CHECK-IR: %[[VAR:.*]] = load i64,
112 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD6:.*]], i64 %[[VAR]])
113 
114   _WriteStatusReg(ARM64_PMXEVCNTRn_EL0(1), v);
115 // CHECK-ASM: msr     PMEVCNTR1_EL0, x8
116 // CHECK-IR: %[[VAR:.*]] = load i64,
117 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD7:.*]], i64 %[[VAR]])
118 
119   _WriteStatusReg(ARM64_PMXEVCNTRn_EL0(30), v);
120 // CHECK-ASM: msr     PMEVCNTR30_EL0, x8
121 // CHECK-IR: %[[VAR:.*]] = load i64,
122 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD8:.*]], i64 %[[VAR]])
123 
124   _WriteStatusReg(ARM64_TPIDR_EL0, v);
125 // CHECK-ASM: msr     TPIDR_EL0, x8
126 // CHECK-IR: %[[VAR:.*]] = load i64,
127 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD9:.*]], i64 %[[VAR]])
128 
129   _WriteStatusReg(ARM64_TPIDRRO_EL0, v);
130 // CHECK-ASM: msr     TPIDRRO_EL0, x8
131 // CHECK-IR: %[[VAR:.*]] = load i64,
132 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD10:.*]], i64 %[[VAR]])
133 
134   _WriteStatusReg(ARM64_TPIDR_EL1, v);
135 // CHECK-ASM: msr     TPIDR_EL1, x8
136 // CHECK-IR: %[[VAR:.*]] = load i64,
137 // CHECK-IR-NEXT: call void @llvm.write_register.i64(metadata ![[MD11:.*]], i64 %[[VAR]])
138 }
139 
140 // CHECK-IR: ![[MD2]] = !{!"3:3:14:0:2"}
141 // CHECK-IR: ![[MD3]] = !{!"3:3:9:13:0"}
142 // CHECK-IR: ![[MD4]] = !{!"3:3:9:12:5"}
143 // CHECK-IR: ![[MD5]] = !{!"3:3:9:13:2"}
144 // CHECK-IR: ![[MD6]] = !{!"3:3:14:8:0"}
145 // CHECK-IR: ![[MD7]] = !{!"3:3:14:8:1"}
146 // CHECK-IR: ![[MD8]] = !{!"3:3:14:11:6"}
147 // CHECK-IR: ![[MD9]] = !{!"3:3:13:0:2"}
148 // CHECK-IR: ![[MD10]] = !{!"3:3:13:0:3"}
149 // CHECK-IR: ![[MD11]] = !{!"3:0:13:0:4"}
150