1 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s --check-prefix=CHECK 2 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -mattr=-neon | FileCheck --check-prefix=CHECK-NONEON %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=arm64_be-none-linux-gnu | FileCheck --check-prefix=CHECK-BE %s 5 6 %myStruct = type { i64 , i8, i32 } 7 8 @var8 = global i8 0 9 @var8_2 = global i8 0 10 @var32 = global i32 0 11 @var64 = global i64 0 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 18 19 declare void @take_i8s(i8 %val1, i8 %val2) 20 declare void @take_floats(float %val1, float %val2) 21 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] 29 ; CHECK: bl take_i8s 30 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, 39 40 ret void 41 } 42 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) 47 48 define void @simple_rets() { 49 ; CHECK-LABEL: simple_rets: 50 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] 55 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, 61 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] 67 68 call void @return_large_struct(%myStruct* sret @varstruct) 69 ; CHECK: add x8, {{x[0-9]+}}, {{#?}}:lo12:varstruct 70 ; CHECK: bl return_large_struct 71 72 ret void 73 } 74 75 76 declare i32 @struct_on_stack(i8 %var0, i16 %var1, i32 %var2, i64 %var3, i128 %var45, 77 i32* %var6, %myStruct* byval %struct, i32 %stacked, 78 double %notstacked) 79 declare void @stacked_fpu(float %var0, double %var1, float %var2, float %var3, 80 float %var4, float %var5, float %var6, float %var7, 81 float %var8) 82 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, 87 i32 999, double 1.0) 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 92 ; CHECK-DAG: str {{q[0-9]+}}, [sp] 93 ; CHECK-DAG: fmov d[[FINAL_DOUBLE:[0-9]+]], #1.0 94 ; CHECK: mov v0.16b, v[[FINAL_DOUBLE]].16b 95 96 ; CHECK-NONEON-DAG: str {{q[0-9]+}}, [sp] 97 ; CHECK-NONEON-DAG: fmov d[[FINAL_DOUBLE:[0-9]+]], #1.0 98 ; CHECK-NONEON: fmov d0, d[[FINAL_DOUBLE]] 99 100 ; CHECK: bl struct_on_stack 101 ; CHECK-NOFP-NOT: fmov 102 103 call void @stacked_fpu(float -1.0, double 1.0, float 4.0, float 2.0, 104 float -2.0, float -8.0, float 16.0, float 1.0, 105 float 64.0) 106 107 ; CHECK: movz [[SIXTY_FOUR:w[0-9]+]], #0x4280, lsl #16 108 ; CHECK: str [[SIXTY_FOUR]], [sp] 109 110 ; CHECK-NONEON: movz [[SIXTY_FOUR:w[0-9]+]], #0x4280, lsl #16 111 ; CHECK-NONEON: str [[SIXTY_FOUR]], [sp] 112 113 ; CHECK: bl stacked_fpu 114 ret void 115 } 116 117 118 declare void @check_i128_stackalign(i32 %val0, i32 %val1, i32 %val2, i32 %val3, 119 i32 %val4, i32 %val5, i32 %val6, i32 %val7, 120 i32 %stack1, i128 %stack2) 121 122 declare void @check_i128_regalign(i32 %val0, i128 %val1) 123 124 125 define void @check_i128_align() { 126 ; CHECK-LABEL: check_i128_align: 127 %val = load i128* @var128 128 call void @check_i128_stackalign(i32 0, i32 1, i32 2, i32 3, 129 i32 4, i32 5, i32 6, i32 7, 130 i32 42, i128 %val) 131 ; CHECK: ldr [[I128LO:x[0-9]+]], [{{x[0-9]+}}, {{#?}}:lo12:var128] 132 ; CHECK: ldr [[I128HI:x[0-9]+]], [{{x[0-9]+}}, #8] 133 ; CHECK: stp [[I128LO]], [[I128HI]], [sp, #16] 134 135 ; CHECK-NONEON: ldr [[I128LO:x[0-9]+]], [{{x[0-9]+}}, :lo12:var128] 136 ; CHECK-NONEON: ldr [[I128HI:x[0-9]+]], [{{x[0-9]+}}, #8] 137 ; CHECK-NONEON: stp [[I128LO]], [[I128HI]], [sp, #16] 138 ; CHECK: bl check_i128_stackalign 139 140 call void @check_i128_regalign(i32 0, i128 42) 141 ; CHECK-NOT: mov x1 142 ; CHECK-LE: movz x2, #{{0x2a|42}} 143 ; CHECK-LE: mov x3, xzr 144 ; CHECK-BE: movz {{x|w}}3, #{{0x2a|42}} 145 ; CHECK-BE: mov x2, xzr 146 ; CHECK: bl check_i128_regalign 147 148 ret void 149 } 150 151 @fptr = global void()* null 152 153 define void @check_indirect_call() { 154 ; CHECK-LABEL: check_indirect_call: 155 %func = load void()** @fptr 156 call void %func() 157 ; CHECK: ldr [[FPTR:x[0-9]+]], [{{x[0-9]+}}, {{#?}}:lo12:fptr] 158 ; CHECK: blr [[FPTR]] 159 160 ret void 161 } 162
