1 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
2 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP %s
4 %myStruct = type { i64 , i8, i32 }
10 @var128 = global i128 0
11 @varfloat = global float 0.0
12 @varfloat_2 = global float 0.0
13 @vardouble = global double 0.0
14 @varstruct = global %myStruct zeroinitializer
15 @varsmallstruct = global [2 x i64] zeroinitializer
17 declare void @take_i8s(i8 %val1, i8 %val2)
18 declare void @take_floats(float %val1, float %val2)
20 define void @simple_args() {
21 ; CHECK-LABEL: simple_args:
22 %char1 = load i8* @var8
23 %char2 = load i8* @var8_2
24 call void @take_i8s(i8 %char1, i8 %char2)
25 ; CHECK-DAG: ldrb w0, [{{x[0-9]+}}, #:lo12:var8]
26 ; CHECK-DAG: ldrb w1, [{{x[0-9]+}}, #:lo12:var8_2]
29 %float1 = load float* @varfloat
30 %float2 = load float* @varfloat_2
31 call void @take_floats(float %float1, float %float2)
32 ; CHECK-DAG: ldr s1, [{{x[0-9]+}}, #:lo12:varfloat_2]
33 ; CHECK-DAG: ldr s0, [{{x[0-9]+}}, #:lo12:varfloat]
34 ; CHECK: bl take_floats
35 ; CHECK-NOFP-NOT: ldr s1,
36 ; CHECK-NOFP-NOT: ldr s0,
41 declare i32 @return_int()
42 declare double @return_double()
43 declare [2 x i64] @return_smallstruct()
44 declare void @return_large_struct(%myStruct* sret %retval)
46 define void @simple_rets() {
47 ; CHECK-LABEL: simple_rets:
49 %int = call i32 @return_int()
50 store i32 %int, i32* @var32
51 ; CHECK: bl return_int
52 ; CHECK: str w0, [{{x[0-9]+}}, #:lo12:var32]
54 %dbl = call double @return_double()
55 store double %dbl, double* @vardouble
56 ; CHECK: bl return_double
57 ; CHECK: str d0, [{{x[0-9]+}}, #:lo12:vardouble]
58 ; CHECK-NOFP-NOT: str d0,
60 %arr = call [2 x i64] @return_smallstruct()
61 store [2 x i64] %arr, [2 x i64]* @varsmallstruct
62 ; CHECK: bl return_smallstruct
63 ; CHECK: str x1, [{{x[0-9]+}}, #8]
64 ; CHECK: str x0, [{{x[0-9]+}}, #:lo12:varsmallstruct]
66 call void @return_large_struct(%myStruct* sret @varstruct)
67 ; CHECK: add x8, {{x[0-9]+}}, #:lo12:varstruct
68 ; CHECK: bl return_large_struct
74 declare i32 @struct_on_stack(i8 %var0, i16 %var1, i32 %var2, i64 %var3, i128 %var45,
75 i32* %var6, %myStruct* byval %struct, i32 %stacked,
77 declare void @stacked_fpu(float %var0, double %var1, float %var2, float %var3,
78 float %var4, float %var5, float %var6, float %var7,
81 define void @check_stack_args() {
82 ; CHECK-LABEL: check_stack_args:
83 call i32 @struct_on_stack(i8 0, i16 12, i32 42, i64 99, i128 1,
84 i32* @var32, %myStruct* byval @varstruct,
86 ; Want to check that the final double is passed in registers and
87 ; that varstruct is passed on the stack. Rather dependent on how a
88 ; memcpy gets created, but the following works for now.
89 ; CHECK: mov x[[SPREG:[0-9]+]], sp
90 ; CHECK-DAG: str {{w[0-9]+}}, [x[[SPREG]]]
91 ; CHECK-DAG: str {{w[0-9]+}}, [x[[SPREG]], #12]
93 ; CHECK: bl struct_on_stack
94 ; CHECK-NOFP-NOT: fmov
96 call void @stacked_fpu(float -1.0, double 1.0, float 4.0, float 2.0,
97 float -2.0, float -8.0, float 16.0, float 1.0,
99 ; CHECK: ldr s[[STACKEDREG:[0-9]+]], [{{x[0-9]+}}, #:lo12:.LCPI
101 ; CHECK: str d[[STACKEDREG]], [x0]
102 ; CHECK: bl stacked_fpu
107 declare void @check_i128_stackalign(i32 %val0, i32 %val1, i32 %val2, i32 %val3,
108 i32 %val4, i32 %val5, i32 %val6, i32 %val7,
109 i32 %stack1, i128 %stack2)
111 declare void @check_i128_regalign(i32 %val0, i128 %val1)
114 define void @check_i128_align() {
115 ; CHECK-LABEL: check_i128_align:
116 %val = load i128* @var128
117 call void @check_i128_stackalign(i32 0, i32 1, i32 2, i32 3,
118 i32 4, i32 5, i32 6, i32 7,
120 ; CHECK: ldr [[I128LO:x[0-9]+]], [{{x[0-9]+}}, #:lo12:var128]
121 ; CHECK: ldr [[I128HI:x[0-9]+]], [{{x[0-9]+}}, #8]
122 ; CHECK: mov x[[SPREG:[0-9]+]], sp
123 ; CHECK: str [[I128HI]], [x[[SPREG]], #24]
124 ; CHECK: str [[I128LO]], [x[[SPREG]], #16]
125 ; CHECK: bl check_i128_stackalign
127 call void @check_i128_regalign(i32 0, i128 42)
129 ; CHECK: movz x2, #42
131 ; CHECK: bl check_i128_regalign
136 @fptr = global void()* null
138 define void @check_indirect_call() {
139 ; CHECK-LABEL: check_indirect_call:
140 %func = load void()** @fptr
142 ; CHECK: ldr [[FPTR:x[0-9]+]], [{{x[0-9]+}}, #:lo12:fptr]
143 ; CHECK: blr [[FPTR]]