1 ; RUN: llc -mtriple=arm64-linux-gnu -enable-misched=false -disable-post-ra < %s | FileCheck %s
3 @var = global i32 0, align 4
5 ; CHECK-LABEL: @test_i128_align
6 define i128 @test_i128_align(i32, i128 %arg, i32 %after) {
7 store i32 %after, i32* @var, align 4
8 ; CHECK-DAG: str w4, [{{x[0-9]+}}, :lo12:var]
11 ; CHECK-DAG: mov x0, x2
12 ; CHECK-DAG: mov x1, x3
15 ; CHECK-LABEL: @test_i64x2_align
16 define [2 x i64] @test_i64x2_align(i32, [2 x i64] %arg, i32 %after) {
17 store i32 %after, i32* @var, align 4
18 ; CHECK-DAG: str w3, [{{x[0-9]+}}, :lo12:var]
21 ; CHECK-DAG: mov x0, x1
25 @var64 = global i64 0, align 8
27 ; Check stack slots are 64-bit at all times.
28 define void @test_stack_slots([8 x i32], i1 %bool, i8 %char, i16 %short,
29 i32 %int, i64 %long) {
30 ; CHECK-LABEL: test_stack_slots:
31 ; CHECK-DAG: ldr w[[ext1:[0-9]+]], [sp, #24]
32 ; CHECK-DAG: ldrh w[[ext2:[0-9]+]], [sp, #16]
33 ; CHECK-DAG: ldrb w[[ext3:[0-9]+]], [sp, #8]
34 ; CHECK-DAG: ldr x[[ext4:[0-9]+]], [sp, #32]
35 ; CHECK-DAG: ldrb w[[ext5:[0-9]+]], [sp]
36 ; CHECK-DAG: and x[[ext5]], x[[ext5]], #0x1
38 %ext_bool = zext i1 %bool to i64
39 store volatile i64 %ext_bool, i64* @var64, align 8
40 ; CHECK: str x[[ext5]], [{{x[0-9]+}}, :lo12:var64]
42 %ext_char = zext i8 %char to i64
43 store volatile i64 %ext_char, i64* @var64, align 8
44 ; CHECK: str x[[ext3]], [{{x[0-9]+}}, :lo12:var64]
46 %ext_short = zext i16 %short to i64
47 store volatile i64 %ext_short, i64* @var64, align 8
48 ; CHECK: str x[[ext2]], [{{x[0-9]+}}, :lo12:var64]
50 %ext_int = zext i32 %int to i64
51 store volatile i64 %ext_int, i64* @var64, align 8
52 ; CHECK: str x[[ext1]], [{{x[0-9]+}}, :lo12:var64]
54 store volatile i64 %long, i64* @var64, align 8
55 ; CHECK: str x[[ext4]], [{{x[0-9]+}}, :lo12:var64]
60 ; Make sure the callee does extensions (in the absence of zext/sext
61 ; keyword on args) while we're here.
63 define void @test_extension(i1 %bool, i8 %char, i16 %short, i32 %int) {
64 %ext_bool = zext i1 %bool to i64
65 store volatile i64 %ext_bool, i64* @var64
66 ; CHECK: and [[EXT:x[0-9]+]], x0, #0x1
67 ; CHECK: str [[EXT]], [{{x[0-9]+}}, :lo12:var64]
69 %ext_char = sext i8 %char to i64
70 store volatile i64 %ext_char, i64* @var64
71 ; CHECK: sxtb [[EXT:x[0-9]+]], w1
72 ; CHECK: str [[EXT]], [{{x[0-9]+}}, :lo12:var64]
74 %ext_short = zext i16 %short to i64
75 store volatile i64 %ext_short, i64* @var64
76 ; CHECK: and [[EXT:x[0-9]+]], x2, #0xffff
77 ; CHECK: str [[EXT]], [{{x[0-9]+}}, :lo12:var64]
79 %ext_int = zext i32 %int to i64
80 store volatile i64 %ext_int, i64* @var64
81 ; CHECK: mov w[[EXT:[0-9]+]], w3
82 ; CHECK: str x[[EXT]], [{{x[0-9]+}}, :lo12:var64]
87 declare void @variadic(i32 %a, ...)
89 ; Under AAPCS variadic functions have the same calling convention as
90 ; others. The extra arguments should go in registers rather than on the stack.
91 define void @test_variadic() {
92 call void(i32, ...) @variadic(i32 0, i64 1, double 2.0)
93 ; CHECK: fmov d0, #2.0
99 ; We weren't marking x7 as used after deciding that the i128 didn't fit into
100 ; registers and putting the first half on the stack, so the *second* half went
102 define i128 @test_i128_shadow([7 x i64] %x0_x6, i128 %sp) {
103 ; CHECK-LABEL: test_i128_shadow:
104 ; CHECK: ldp x0, x1, [sp]
109 ; This test is to check if fp128 can be correctly handled on stack.
110 define fp128 @test_fp128([8 x float] %arg0, fp128 %arg1) {
111 ; CHECK-LABEL: test_fp128:
112 ; CHECK: ldr {{q[0-9]+}}, [sp]
116 ; Check if VPR can be correctly pass by stack.
117 define <2 x double> @test_vreg_stack([8 x <2 x double>], <2 x double> %varg_stack) {
119 ; CHECK-LABEL: test_vreg_stack:
120 ; CHECK: ldr {{q[0-9]+}}, [sp]
121 ret <2 x double> %varg_stack;
124 ; Check that f16 can be passed and returned (ACLE 2.0 extension)
125 define half @test_half(float, half %arg) {
126 ; CHECK-LABEL: test_half:
127 ; CHECK: mov v0.16b, v1.16b
131 ; Check that f16 constants are materialized correctly
132 define half @test_half_const() {
133 ; CHECK-LABEL: test_half_const:
134 ; CHECK: ldr h0, [x{{[0-9]+}}, :lo12:{{.*}}]
138 ; Check that v4f16 can be passed and returned in registers
139 define <4 x half> @test_v4_half_register(float, <4 x half> %arg) {
140 ; CHECK-LABEL: test_v4_half_register:
141 ; CHECK: mov v0.16b, v1.16b
145 ; Check that v8f16 can be passed and returned in registers
146 define <8 x half> @test_v8_half_register(float, <8 x half> %arg) {
147 ; CHECK-LABEL: test_v8_half_register:
148 ; CHECK: mov v0.16b, v1.16b
152 ; Check that v4f16 can be passed and returned on the stack
153 define <4 x half> @test_v4_half_stack([8 x <2 x double>], <4 x half> %arg) {
154 ; CHECK-LABEL: test_v4_half_stack:
155 ; CHECK: ldr d0, [sp]
159 ; Check that v8f16 can be passed and returned on the stack
160 define <8 x half> @test_v8_half_stack([8 x <2 x double>], <8 x half> %arg) {
161 ; CHECK-LABEL: test_v8_half_stack:
162 ; CHECK: ldr q0, [sp]