1 // REQUIRES: arm-registered-target
2 // REQUIRES: aarch64-registered-target
3 // RUN: %clang_cc1 -triple thumbv7-apple-darwin9 \
4 // RUN: -target-abi aapcs \
5 // RUN: -target-cpu cortex-a8 \
6 // RUN: -mfloat-abi hard \
7 // RUN: -ffreestanding \
8 // RUN: -emit-llvm -w -o - %s | FileCheck %s
10 // RUN: %clang_cc1 -triple armv7-unknown-nacl-gnueabi \
11 // RUN: -target-cpu cortex-a8 \
12 // RUN: -mfloat-abi hard \
13 // RUN: -ffreestanding \
14 // RUN: -emit-llvm -w -o - %s | FileCheck %s
16 // RUN: %clang_cc1 -triple arm64-apple-darwin9 -target-feature +neon \
17 // RUN: -ffreestanding \
18 // RUN: -emit-llvm -w -o - %s | FileCheck -check-prefix=CHECK64 %s
26 struct homogeneous_struct {
31 // CHECK: define arm_aapcs_vfpcc %struct.homogeneous_struct @test_struct(%struct.homogeneous_struct %{{.*}})
32 // CHECK64: define %struct.homogeneous_struct @test_struct([4 x float] %{{.*}})
33 extern struct homogeneous_struct struct_callee(struct homogeneous_struct);
34 struct homogeneous_struct test_struct(struct homogeneous_struct arg) {
35 return struct_callee(arg);
38 // CHECK: define arm_aapcs_vfpcc void @test_struct_variadic(%struct.homogeneous_struct* {{.*}}, ...)
39 struct homogeneous_struct test_struct_variadic(struct homogeneous_struct arg, ...) {
40 return struct_callee(arg);
46 // CHECK: define arm_aapcs_vfpcc void @test_array(%struct.nested_array %{{.*}})
47 // CHECK64: define void @test_array([4 x double] %{{.*}})
48 extern void array_callee(struct nested_array);
49 void test_array(struct nested_array arg) {
53 extern void complex_callee(__complex__ double);
54 // CHECK: define arm_aapcs_vfpcc void @test_complex({ double, double } %{{.*}})
55 // CHECK64: define void @test_complex([2 x double] %cd.coerce)
56 void test_complex(__complex__ double cd) {
60 // Long double is the same as double on AAPCS, it should be homogeneous.
61 extern void complex_long_callee(__complex__ long double);
62 // CHECK: define arm_aapcs_vfpcc void @test_complex_long({ double, double } %{{.*}})
63 void test_complex_long(__complex__ long double cd) {
67 // Structs with more than 4 elements of the base type are not treated
68 // as homogeneous aggregates. Test that.
76 // CHECK: define arm_aapcs_vfpcc void @test_big([5 x i32] %{{.*}})
77 // CHECK64: define void @test_big(%struct.big_struct* %{{.*}})
78 // CHECK64: call void @llvm.memcpy
79 // CHECK64: call void @big_callee(%struct.big_struct*
80 extern void big_callee(struct big_struct);
81 void test_big(struct big_struct arg) {
85 // Make sure that aggregates with multiple base types are not treated as
86 // homogeneous aggregates.
88 struct heterogeneous_struct {
92 // CHECK: define arm_aapcs_vfpcc void @test_hetero([2 x i32] %{{.*}})
93 // CHECK64: define void @test_hetero(i64 %{{.*}})
94 extern void hetero_callee(struct heterogeneous_struct);
95 void test_hetero(struct heterogeneous_struct arg) {
99 // Neon multi-vector types are homogeneous aggregates.
100 // CHECK: define arm_aapcs_vfpcc <16 x i8> @f0(%struct.int8x16x4_t %{{.*}})
101 // CHECK64: define <16 x i8> @f0([4 x <16 x i8>] %{{.*}})
102 int8x16_t f0(int8x16x4_t v4) {
103 return vaddq_s8(v4.val[0], v4.val[3]);
106 // ...and it doesn't matter whether the vectors are exactly the same, as long
107 // as they have the same size.
114 // CHECK: define arm_aapcs_vfpcc void @test_neon(%struct.neon_struct %{{.*}})
115 // CHECK64: define void @test_neon([4 x <8 x i8>] %{{.*}})
116 extern void neon_callee(struct neon_struct);
117 void test_neon(struct neon_struct arg) {
121 // CHECK-LABEL: define arm_aapcs_vfpcc void @f33(%struct.s33* byval align 4 %s)
122 struct s33 { char buf[32*32]; };
123 void f33(struct s33 s) { }
125 typedef struct { long long x; int y; } struct_long_long_int;
126 // CHECK: define arm_aapcs_vfpcc void @test_vfp_stack_gpr_split_1(double %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, double %i, i32 %j, i64 %k, i32 %l)
127 void test_vfp_stack_gpr_split_1(double a, double b, double c, double d, double e, double f, double g, double h, double i, int j, long long k, int l) {}
129 // CHECK: define arm_aapcs_vfpcc void @test_vfp_stack_gpr_split_2(double %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, double %i, i32 %j, [2 x i64] %k.coerce)
130 void test_vfp_stack_gpr_split_2(double a, double b, double c, double d, double e, double f, double g, double h, double i, int j, struct_long_long_int k) {}
132 // CHECK: define arm_aapcs_vfpcc void @test_vfp_stack_gpr_split_3(%struct.struct_long_long_int* noalias sret %agg.result, double %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, double %i, [2 x i64] %k.coerce)
133 struct_long_long_int test_vfp_stack_gpr_split_3(double a, double b, double c, double d, double e, double f, double g, double h, double i, struct_long_long_int k) {}
135 typedef struct { int a; int b:4; int c; } struct_int_bitfield_int;
136 // CHECK: define arm_aapcs_vfpcc void @test_test_vfp_stack_gpr_split_bitfield(double %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, double %i, i32 %j, i32 %k, [3 x i32] %l.coerce)
137 void test_test_vfp_stack_gpr_split_bitfield(double a, double b, double c, double d, double e, double f, double g, double h, double i, int j, int k, struct_int_bitfield_int l) {}
139 // Note: this struct requires internal padding
140 typedef struct { int x; long long y; } struct_int_long_long;
141 // CHECK: define arm_aapcs_vfpcc void @test_vfp_stack_gpr_split_4(double %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, double %i, i32 %j, [2 x i64] %k.coerce)
142 void test_vfp_stack_gpr_split_4(double a, double b, double c, double d, double e, double f, double g, double h, double i, int j, struct_int_long_long k) {}
144 // This very large struct (passed byval) uses up the GPRs, so no padding is needed
145 typedef struct { int x[17]; } struct_seventeen_ints;
146 typedef struct { int x[4]; } struct_four_ints;
147 // CHECK: define arm_aapcs_vfpcc void @test_vfp_stack_gpr_split_5(%struct.struct_seventeen_ints* byval align 4 %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, double %i, double %j, [4 x i32] %k.coerce)
148 void test_vfp_stack_gpr_split_5(struct_seventeen_ints a, double b, double c, double d, double e, double f, double g, double h, double i, double j, struct_four_ints k) {}
150 // Here, parameter k would need padding to prevent it from being split, but it
151 // is passed ByVal (due to being > 64 bytes), so the backend handles this instead.
152 void test_vfp_stack_gpr_split_6(double a, double b, double c, double d, double e, double f, double g, double h, double i, int j, struct_seventeen_ints k) {}
153 // CHECK: define arm_aapcs_vfpcc void @test_vfp_stack_gpr_split_6(double %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, double %i, i32 %j, %struct.struct_seventeen_ints* byval align 4 %k)