1 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
2 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64_be-none-linux-gnu | FileCheck --check-prefix=CHECK --check-prefix=CHECK-BE %s
3 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP %s
4 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64_be-none-linux-gnu -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-BE --check-prefix=CHECK-NOFP %s
6 %myStruct = type { i64 , i8, i32 }
12 @var128 = global i128 0
13 @varfloat = global float 0.0
14 @varfloat_2 = global float 0.0
15 @vardouble = global double 0.0
16 @varstruct = global %myStruct zeroinitializer
17 @varsmallstruct = global [2 x i64] zeroinitializer
19 declare void @take_i8s(i8 %val1, i8 %val2)
20 declare void @take_floats(float %val1, float %val2)
22 define void @simple_args() {
23 ; CHECK-LABEL: simple_args:
24 %char1 = load i8* @var8
25 %char2 = load i8* @var8_2
26 call void @take_i8s(i8 %char1, i8 %char2)
27 ; CHECK-DAG: ldrb w0, [{{x[0-9]+}}, #:lo12:var8]
28 ; CHECK-DAG: ldrb w1, [{{x[0-9]+}}, #:lo12:var8_2]
31 %float1 = load float* @varfloat
32 %float2 = load float* @varfloat_2
33 call void @take_floats(float %float1, float %float2)
34 ; CHECK-DAG: ldr s1, [{{x[0-9]+}}, #:lo12:varfloat_2]
35 ; CHECK-DAG: ldr s0, [{{x[0-9]+}}, #:lo12:varfloat]
36 ; CHECK: bl take_floats
37 ; CHECK-NOFP-NOT: ldr s1,
38 ; CHECK-NOFP-NOT: ldr s0,
43 declare i32 @return_int()
44 declare double @return_double()
45 declare [2 x i64] @return_smallstruct()
46 declare void @return_large_struct(%myStruct* sret %retval)
48 define void @simple_rets() {
49 ; CHECK-LABEL: simple_rets:
51 %int = call i32 @return_int()
52 store i32 %int, i32* @var32
53 ; CHECK: bl return_int
54 ; CHECK: str w0, [{{x[0-9]+}}, #:lo12:var32]
56 %dbl = call double @return_double()
57 store double %dbl, double* @vardouble
58 ; CHECK: bl return_double
59 ; CHECK: str d0, [{{x[0-9]+}}, #:lo12:vardouble]
60 ; CHECK-NOFP-NOT: str d0,
62 %arr = call [2 x i64] @return_smallstruct()
63 store [2 x i64] %arr, [2 x i64]* @varsmallstruct
64 ; CHECK: bl return_smallstruct
65 ; CHECK: str x1, [{{x[0-9]+}}, #8]
66 ; CHECK: str x0, [{{x[0-9]+}}, #:lo12:varsmallstruct]
68 call void @return_large_struct(%myStruct* sret @varstruct)
69 ; CHECK: add x8, {{x[0-9]+}}, #:lo12:varstruct
70 ; CHECK: bl return_large_struct
76 declare i32 @struct_on_stack(i8 %var0, i16 %var1, i32 %var2, i64 %var3, i128 %var45,
77 i32* %var6, %myStruct* byval %struct, i32 %stacked,
79 declare void @stacked_fpu(float %var0, double %var1, float %var2, float %var3,
80 float %var4, float %var5, float %var6, float %var7,
83 define void @check_stack_args() {
84 ; CHECK-LABEL: check_stack_args:
85 call i32 @struct_on_stack(i8 0, i16 12, i32 42, i64 99, i128 1,
86 i32* @var32, %myStruct* byval @varstruct,
88 ; Want to check that the final double is passed in registers and
89 ; that varstruct is passed on the stack. Rather dependent on how a
90 ; memcpy gets created, but the following works for now.
91 ; CHECK: mov x[[SPREG:[0-9]+]], sp
92 ; CHECK-DAG: str {{w[0-9]+}}, [x[[SPREG]]]
93 ; CHECK-DAG: str {{w[0-9]+}}, [x[[SPREG]], #12]
95 ; CHECK: bl struct_on_stack
96 ; CHECK-NOFP-NOT: fmov
98 call void @stacked_fpu(float -1.0, double 1.0, float 4.0, float 2.0,
99 float -2.0, float -8.0, float 16.0, float 1.0,
101 ; CHECK: ldr s[[STACKEDREG:[0-9]+]], [{{x[0-9]+}}, #:lo12:.LCPI
103 ; CHECK: str d[[STACKEDREG]], [x0]
104 ; CHECK: bl stacked_fpu
109 declare void @check_i128_stackalign(i32 %val0, i32 %val1, i32 %val2, i32 %val3,
110 i32 %val4, i32 %val5, i32 %val6, i32 %val7,
111 i32 %stack1, i128 %stack2)
113 declare void @check_i128_regalign(i32 %val0, i128 %val1)
116 define void @check_i128_align() {
117 ; CHECK-LABEL: check_i128_align:
118 %val = load i128* @var128
119 call void @check_i128_stackalign(i32 0, i32 1, i32 2, i32 3,
120 i32 4, i32 5, i32 6, i32 7,
122 ; CHECK: ldr [[I128LO:x[0-9]+]], [{{x[0-9]+}}, #:lo12:var128]
123 ; CHECK: ldr [[I128HI:x[0-9]+]], [{{x[0-9]+}}, #8]
124 ; CHECK: mov x[[SPREG:[0-9]+]], sp
125 ; CHECK: str [[I128HI]], [x[[SPREG]], #24]
126 ; CHECK: str [[I128LO]], [x[[SPREG]], #16]
127 ; CHECK: bl check_i128_stackalign
129 call void @check_i128_regalign(i32 0, i128 42)
131 ; CHECK-LE: movz x2, #42
132 ; CHECK-LE: mov x3, xzr
133 ; CHECK-BE: movz x3, #42
134 ; CHECK-BE: mov x2, xzr
135 ; CHECK: bl check_i128_regalign
140 @fptr = global void()* null
142 define void @check_indirect_call() {
143 ; CHECK-LABEL: check_indirect_call:
144 %func = load void()** @fptr
146 ; CHECK: ldr [[FPTR:x[0-9]+]], [{{x[0-9]+}}, #:lo12:fptr]
147 ; CHECK: blr [[FPTR]]