1 // REQUIRES: arm-registered-target 2 // RUN: %clang_cc1 -triple thumbv7-apple-darwin9 \ 3 // RUN: -target-abi aapcs \ 4 // RUN: -target-cpu cortex-a8 \ 5 // RUN: -mfloat-abi hard \ 6 // RUN: -ffreestanding \ 7 // RUN: -emit-llvm -w -o - %s | FileCheck %s 8 9 // RUN: %clang_cc1 -triple armv7-unknown-nacl-gnueabi \ 10 // RUN: -target-cpu cortex-a8 \ 11 // RUN: -mfloat-abi hard \ 12 // RUN: -ffreestanding \ 13 // RUN: -emit-llvm -w -o - %s | FileCheck %s 14 15 // RUN: %clang_cc1 -triple arm64-apple-darwin9 -target-feature +neon \ 16 // RUN: -ffreestanding \ 17 // RUN: -emit-llvm -w -o - %s | FileCheck -check-prefix=CHECK64 %s 18 19 #ifdef __arm64__ 20 #include <arm_neon.h> 21 #else 22 #include <arm_neon.h> 23 #endif 24 25 struct homogeneous_struct { 26 float f[2]; 27 float f3; 28 float f4; 29 }; 30 // CHECK: define arm_aapcs_vfpcc %struct.homogeneous_struct @test_struct(%struct.homogeneous_struct %{{.*}}) 31 // CHECK64: define %struct.homogeneous_struct @test_struct(float %{{.*}}, float %{{.*}}, float %{{.*}}, float %{{.*}}) 32 extern struct homogeneous_struct struct_callee(struct homogeneous_struct); 33 struct homogeneous_struct test_struct(struct homogeneous_struct arg) { 34 return struct_callee(arg); 35 } 36 37 // CHECK: define arm_aapcs_vfpcc void @test_struct_variadic(%struct.homogeneous_struct* {{.*}}, ...) 38 struct homogeneous_struct test_struct_variadic(struct homogeneous_struct arg, ...) { 39 return struct_callee(arg); 40 } 41 42 struct nested_array { 43 double d[4]; 44 }; 45 // CHECK: define arm_aapcs_vfpcc void @test_array(%struct.nested_array %{{.*}}) 46 // CHECK64: define void @test_array(double %{{.*}}, double %{{.*}}, double %{{.*}}, double %{{.*}}) 47 extern void array_callee(struct nested_array); 48 void test_array(struct nested_array arg) { 49 array_callee(arg); 50 } 51 52 extern void complex_callee(__complex__ double); 53 // CHECK: define arm_aapcs_vfpcc void @test_complex({ double, double } %{{.*}}) 54 // CHECK64: define void @test_complex(double %{{.*}}, double %{{.*}}) 55 void test_complex(__complex__ double cd) { 56 complex_callee(cd); 57 } 58 59 // Long double is the same as double on AAPCS, it should be homogeneous. 60 extern void complex_long_callee(__complex__ long double); 61 // CHECK: define arm_aapcs_vfpcc void @test_complex_long({ double, double } %{{.*}}) 62 void test_complex_long(__complex__ long double cd) { 63 complex_callee(cd); 64 } 65 66 // Structs with more than 4 elements of the base type are not treated 67 // as homogeneous aggregates. Test that. 68 69 struct big_struct { 70 float f1; 71 float f[2]; 72 float f3; 73 float f4; 74 }; 75 // CHECK: define arm_aapcs_vfpcc void @test_big({ [5 x i32] } %{{.*}}) 76 // CHECK64: define void @test_big(%struct.big_struct* %{{.*}}) 77 // CHECK64: call void @llvm.memcpy 78 // CHECK64: call void @big_callee(%struct.big_struct* 79 extern void big_callee(struct big_struct); 80 void test_big(struct big_struct arg) { 81 big_callee(arg); 82 } 83 84 // Make sure that aggregates with multiple base types are not treated as 85 // homogeneous aggregates. 86 87 struct heterogeneous_struct { 88 float f1; 89 int i2; 90 }; 91 // CHECK: define arm_aapcs_vfpcc void @test_hetero({ [2 x i32] } %{{.*}}) 92 // CHECK64: define void @test_hetero(i64 %{{.*}}) 93 extern void hetero_callee(struct heterogeneous_struct); 94 void test_hetero(struct heterogeneous_struct arg) { 95 hetero_callee(arg); 96 } 97 98 // Neon multi-vector types are homogeneous aggregates. 99 // CHECK: define arm_aapcs_vfpcc <16 x i8> @f0(%struct.int8x16x4_t %{{.*}}) 100 // CHECK64: define <16 x i8> @f0(<16 x i8> %{{.*}}, <16 x i8> %{{.*}}, <16 x i8> %{{.*}}, <16 x i8> %{{.*}}) 101 int8x16_t f0(int8x16x4_t v4) { 102 return vaddq_s8(v4.val[0], v4.val[3]); 103 } 104 105 // ...and it doesn't matter whether the vectors are exactly the same, as long 106 // as they have the same size. 107 108 struct neon_struct { 109 int8x8x2_t v12; 110 int32x2_t v3; 111 int16x4_t v4; 112 }; 113 // CHECK: define arm_aapcs_vfpcc void @test_neon(%struct.neon_struct %{{.*}}) 114 // CHECK64: define void @test_neon(<8 x i8> %{{.*}}, <8 x i8> %{{.*}}, <2 x i32> %{{.*}}, <4 x i16> %{{.*}}) 115 extern void neon_callee(struct neon_struct); 116 void test_neon(struct neon_struct arg) { 117 neon_callee(arg); 118 } 119 120 // CHECK-LABEL: define arm_aapcs_vfpcc void @f33(%struct.s33* byval align 1 %s) 121 struct s33 { char buf[32*32]; }; 122 void f33(struct s33 s) { } 123 124 typedef struct { long long x; int y; } struct_long_long_int; 125 // 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) 126 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) {} 127 128 // 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, [3 x i32], { [2 x i64] } %k.coerce) 129 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) {} 130 131 // 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, [3 x i32], { [2 x i64] } %k.coerce) 132 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) {} 133 134 typedef struct { int a; int b:4; int c; } struct_int_bitfield_int; 135 // 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, [2 x i32], { [3 x i32] } %l.coerce) 136 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) {} 137 138 // Note: this struct requires internal padding 139 typedef struct { int x; long long y; } struct_int_long_long; 140 // 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, [3 x i32], { [2 x i64] } %k.coerce) 141 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) {} 142 143 // This very large struct (passed byval) uses up the GPRs, so no padding is needed 144 typedef struct { int x[17]; } struct_seventeen_ints; 145 typedef struct { int x[4]; } struct_four_ints; 146 // 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) 147 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) {} 148
