2 ; RUN: llc -verify-machineinstrs < %s -mtriple=arm64-none-linux-gnu | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ARM64
3 ; RUN: llc -verify-machineinstrs < %s -mtriple=arm64-none-linux-gnu -mattr=-neon | FileCheck --check-prefix=CHECK --check-prefix=CHECK-ARM64-NONEON %s
4 ; RUN: llc -verify-machineinstrs < %s -mtriple=arm64-none-linux-gnu -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP %s
5 ; RUN: llc -verify-machineinstrs < %s -mtriple=arm64_be-none-linux-gnu | FileCheck --check-prefix=CHECK --check-prefix=CHECK-BE %s
7 %myStruct = type { i64 , i8, i32 }
13 @var128 = global i128 0
14 @varfloat = global float 0.0
15 @varfloat_2 = global float 0.0
16 @vardouble = global double 0.0
17 @varstruct = global %myStruct zeroinitializer
18 @varsmallstruct = global [2 x i64] zeroinitializer
20 declare void @take_i8s(i8 %val1, i8 %val2)
21 declare void @take_floats(float %val1, float %val2)
23 define void @simple_args() {
24 ; CHECK-LABEL: simple_args:
25 %char1 = load i8* @var8
26 %char2 = load i8* @var8_2
27 call void @take_i8s(i8 %char1, i8 %char2)
28 ; CHECK-DAG: ldrb w0, [{{x[0-9]+}}, {{#?}}:lo12:var8]
29 ; CHECK-DAG: ldrb w1, [{{x[0-9]+}}, {{#?}}:lo12:var8_2]
32 %float1 = load float* @varfloat
33 %float2 = load float* @varfloat_2
34 call void @take_floats(float %float1, float %float2)
35 ; CHECK-DAG: ldr s1, [{{x[0-9]+}}, {{#?}}:lo12:varfloat_2]
36 ; CHECK-DAG: ldr s0, [{{x[0-9]+}}, {{#?}}:lo12:varfloat]
37 ; CHECK: bl take_floats
38 ; CHECK-NOFP-NOT: ldr s1,
39 ; CHECK-NOFP-NOT: ldr s0,
44 declare i32 @return_int()
45 declare double @return_double()
46 declare [2 x i64] @return_smallstruct()
47 declare void @return_large_struct(%myStruct* sret %retval)
49 define void @simple_rets() {
50 ; CHECK-LABEL: simple_rets:
52 %int = call i32 @return_int()
53 store i32 %int, i32* @var32
54 ; CHECK: bl return_int
55 ; CHECK: str w0, [{{x[0-9]+}}, {{#?}}:lo12:var32]
57 %dbl = call double @return_double()
58 store double %dbl, double* @vardouble
59 ; CHECK: bl return_double
60 ; CHECK: str d0, [{{x[0-9]+}}, {{#?}}:lo12:vardouble]
61 ; CHECK-NOFP-NOT: str d0,
63 %arr = call [2 x i64] @return_smallstruct()
64 store [2 x i64] %arr, [2 x i64]* @varsmallstruct
65 ; CHECK: bl return_smallstruct
66 ; CHECK: str x1, [{{x[0-9]+}}, #8]
67 ; CHECK: str x0, [{{x[0-9]+}}, {{#?}}:lo12:varsmallstruct]
69 call void @return_large_struct(%myStruct* sret @varstruct)
70 ; CHECK: add x8, {{x[0-9]+}}, {{#?}}:lo12:varstruct
71 ; CHECK: bl return_large_struct
77 declare i32 @struct_on_stack(i8 %var0, i16 %var1, i32 %var2, i64 %var3, i128 %var45,
78 i32* %var6, %myStruct* byval %struct, i32 %stacked,
80 declare void @stacked_fpu(float %var0, double %var1, float %var2, float %var3,
81 float %var4, float %var5, float %var6, float %var7,
84 define void @check_stack_args() {
85 ; CHECK-LABEL: check_stack_args:
86 call i32 @struct_on_stack(i8 0, i16 12, i32 42, i64 99, i128 1,
87 i32* @var32, %myStruct* byval @varstruct,
89 ; Want to check that the final double is passed in registers and
90 ; that varstruct is passed on the stack. Rather dependent on how a
91 ; memcpy gets created, but the following works for now.
93 ; CHECK-ARM64-DAG: str {{q[0-9]+}}, [sp]
94 ; CHECK-ARM64-DAG: fmov d[[FINAL_DOUBLE:[0-9]+]], #1.0
95 ; CHECK-ARM64: mov v0.16b, v[[FINAL_DOUBLE]].16b
97 ; CHECK-ARM64-NONEON-DAG: str {{q[0-9]+}}, [sp]
98 ; CHECK-ARM64-NONEON-DAG: fmov d[[FINAL_DOUBLE:[0-9]+]], #1.0
99 ; CHECK-ARM64-NONEON: fmov d0, d[[FINAL_DOUBLE]]
101 ; CHECK: bl struct_on_stack
102 ; CHECK-NOFP-NOT: fmov
104 call void @stacked_fpu(float -1.0, double 1.0, float 4.0, float 2.0,
105 float -2.0, float -8.0, float 16.0, float 1.0,
108 ; CHECK-ARM64: movz [[SIXTY_FOUR:w[0-9]+]], #0x4280, lsl #16
109 ; CHECK-ARM64: str [[SIXTY_FOUR]], [sp]
111 ; CHECK-ARM64-NONEON: movz [[SIXTY_FOUR:w[0-9]+]], #0x4280, lsl #16
112 ; CHECK-ARM64-NONEON: str [[SIXTY_FOUR]], [sp]
114 ; CHECK: bl stacked_fpu
119 declare void @check_i128_stackalign(i32 %val0, i32 %val1, i32 %val2, i32 %val3,
120 i32 %val4, i32 %val5, i32 %val6, i32 %val7,
121 i32 %stack1, i128 %stack2)
123 declare void @check_i128_regalign(i32 %val0, i128 %val1)
126 define void @check_i128_align() {
127 ; CHECK-LABEL: check_i128_align:
128 %val = load i128* @var128
129 call void @check_i128_stackalign(i32 0, i32 1, i32 2, i32 3,
130 i32 4, i32 5, i32 6, i32 7,
132 ; CHECK: ldr [[I128LO:x[0-9]+]], [{{x[0-9]+}}, {{#?}}:lo12:var128]
133 ; CHECK: ldr [[I128HI:x[0-9]+]], [{{x[0-9]+}}, #8]
134 ; CHECK-ARM64: stp [[I128LO]], [[I128HI]], [sp, #16]
135 ; CHECK-ARM64-NONEON: stp [[I128LO]], [[I128HI]], [sp, #16]
136 ; CHECK: bl check_i128_stackalign
138 call void @check_i128_regalign(i32 0, i128 42)
140 ; CHECK-LE: movz x2, #{{0x2a|42}}
141 ; CHECK-LE: mov x3, xzr
142 ; CHECK-BE: movz {{x|w}}3, #{{0x2a|42}}
143 ; CHECK-BE: mov x2, xzr
144 ; CHECK: bl check_i128_regalign
149 @fptr = global void()* null
151 define void @check_indirect_call() {
152 ; CHECK-LABEL: check_indirect_call:
153 %func = load void()** @fptr
155 ; CHECK: ldr [[FPTR:x[0-9]+]], [{{x[0-9]+}}, {{#?}}:lo12:fptr]
156 ; CHECK: blr [[FPTR]]