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      1 // REQUIRES: arm-registered-target
      2 // RUN: %clang_cc1 -triple armv7-apple-darwin9 -target-feature +neon -target-abi apcs-gnu -emit-llvm -w -o - %s | FileCheck -check-prefix=APCS-GNU %s
      3 // RUN: %clang_cc1 -triple armv7-apple-darwin9 -target-feature +neon -target-abi aapcs -emit-llvm -w -o - %s | FileCheck -check-prefix=AAPCS %s
      4 
      5 // APCS-GNU-LABEL: define signext i8 @f0()
      6 // AAPCS-LABEL: define arm_aapcscc signext i8 @f0()
      7 char f0(void) {
      8   return 0;
      9 }
     10 
     11 // APCS-GNU-LABEL: define i8 @f1()
     12 // AAPCS-LABEL: define arm_aapcscc i8 @f1()
     13 struct s1 { char f0; };
     14 struct s1 f1(void) {}
     15 
     16 // APCS-GNU-LABEL: define i16 @f2()
     17 // AAPCS-LABEL: define arm_aapcscc i16 @f2()
     18 struct s2 { short f0; };
     19 struct s2 f2(void) {}
     20 
     21 // APCS-GNU-LABEL: define i32 @f3()
     22 // AAPCS-LABEL: define arm_aapcscc i32 @f3()
     23 struct s3 { int f0; };
     24 struct s3 f3(void) {}
     25 
     26 // APCS-GNU-LABEL: define i32 @f4()
     27 // AAPCS-LABEL: define arm_aapcscc i32 @f4()
     28 struct s4 { struct s4_0 { int f0; } f0; };
     29 struct s4 f4(void) {}
     30 
     31 // APCS-GNU-LABEL: define void @f5(
     32 // APCS-GNU: struct.s5* noalias sret
     33 // AAPCS-LABEL: define arm_aapcscc i32 @f5()
     34 struct s5 { struct { } f0; int f1; };
     35 struct s5 f5(void) {}
     36 
     37 // APCS-GNU-LABEL: define void @f6(
     38 // APCS-GNU: struct.s6* noalias sret
     39 // AAPCS-LABEL: define arm_aapcscc i32 @f6()
     40 struct s6 { int f0[1]; };
     41 struct s6 f6(void) {}
     42 
     43 // APCS-GNU-LABEL: define void @f7()
     44 // AAPCS-LABEL: define arm_aapcscc void @f7()
     45 struct s7 { struct { int : 0; } f0; };
     46 struct s7 f7(void) {}
     47 
     48 // APCS-GNU-LABEL: define void @f8(
     49 // APCS-GNU: struct.s8* noalias sret
     50 // AAPCS-LABEL: define arm_aapcscc void @f8()
     51 struct s8 { struct { int : 0; } f0[1]; };
     52 struct s8 f8(void) {}
     53 
     54 // APCS-GNU-LABEL: define i32 @f9()
     55 // AAPCS-LABEL: define arm_aapcscc i32 @f9()
     56 struct s9 { int f0; int : 0; };
     57 struct s9 f9(void) {}
     58 
     59 // APCS-GNU-LABEL: define i32 @f10()
     60 // AAPCS-LABEL: define arm_aapcscc i32 @f10()
     61 struct s10 { int f0; int : 0; int : 0; };
     62 struct s10 f10(void) {}
     63 
     64 // APCS-GNU-LABEL: define void @f11(
     65 // APCS-GNU: struct.s11* noalias sret
     66 // AAPCS-LABEL: define arm_aapcscc i32 @f11()
     67 struct s11 { int : 0; int f0; };
     68 struct s11 f11(void) {}
     69 
     70 // APCS-GNU-LABEL: define i32 @f12()
     71 // AAPCS-LABEL: define arm_aapcscc i32 @f12()
     72 union u12 { char f0; short f1; int f2; };
     73 union u12 f12(void) {}
     74 
     75 // APCS-GNU-LABEL: define void @f13(
     76 // APCS-GNU: struct.s13* noalias sret
     77 
     78 // FIXME: This should return a float.
     79 // AAPCS-FIXME: darm_aapcscc efine float @f13()
     80 struct s13 { float f0; };
     81 struct s13 f13(void) {}
     82 
     83 // APCS-GNU-LABEL: define void @f14(
     84 // APCS-GNU: union.u14* noalias sret
     85 // AAPCS-LABEL: define arm_aapcscc i32 @f14()
     86 union u14 { float f0; };
     87 union u14 f14(void) {}
     88 
     89 // APCS-GNU-LABEL: define void @f15()
     90 // AAPCS-LABEL: define arm_aapcscc void @f15()
     91 void f15(struct s7 a0) {}
     92 
     93 // APCS-GNU-LABEL: define void @f16()
     94 // AAPCS-LABEL: define arm_aapcscc void @f16()
     95 void f16(struct s8 a0) {}
     96 
     97 // APCS-GNU-LABEL: define i32 @f17()
     98 // AAPCS-LABEL: define arm_aapcscc i32 @f17()
     99 struct s17 { short f0 : 13; char f1 : 4; };
    100 struct s17 f17(void) {}
    101 
    102 // APCS-GNU-LABEL: define i32 @f18()
    103 // AAPCS-LABEL: define arm_aapcscc i32 @f18()
    104 struct s18 { short f0; char f1 : 4; };
    105 struct s18 f18(void) {}
    106 
    107 // APCS-GNU-LABEL: define void @f19(
    108 // APCS-GNU: struct.s19* noalias sret
    109 // AAPCS-LABEL: define arm_aapcscc i32 @f19()
    110 struct s19 { int f0; struct s8 f1; };
    111 struct s19 f19(void) {}
    112 
    113 // APCS-GNU-LABEL: define void @f20(
    114 // APCS-GNU: struct.s20* noalias sret
    115 // AAPCS-LABEL: define arm_aapcscc i32 @f20()
    116 struct s20 { struct s8 f1; int f0; };
    117 struct s20 f20(void) {}
    118 
    119 // APCS-GNU-LABEL: define i8 @f21()
    120 // AAPCS-LABEL: define arm_aapcscc i32 @f21()
    121 struct s21 { struct {} f1; int f0 : 4; };
    122 struct s21 f21(void) {}
    123 
    124 // APCS-GNU-LABEL: define i16 @f22()
    125 // APCS-GNU-LABEL: define i32 @f23()
    126 // APCS-GNU-LABEL: define i64 @f24()
    127 // APCS-GNU-LABEL: define i128 @f25()
    128 // APCS-GNU-LABEL: define i64 @f26()
    129 // APCS-GNU-LABEL: define i128 @f27()
    130 // AAPCS-LABEL: define arm_aapcscc i16 @f22()
    131 // AAPCS-LABEL: define arm_aapcscc i32 @f23()
    132 // AAPCS: define arm_aapcscc void @f24({{.*}} noalias sret
    133 // AAPCS: define arm_aapcscc void @f25({{.*}} noalias sret
    134 // AAPCS: define arm_aapcscc void @f26({{.*}} noalias sret
    135 // AAPCS: define arm_aapcscc void @f27({{.*}} noalias sret
    136 _Complex char       f22(void) {}
    137 _Complex short      f23(void) {}
    138 _Complex int        f24(void) {}
    139 _Complex long long  f25(void) {}
    140 _Complex float      f26(void) {}
    141 _Complex double     f27(void) {}
    142 
    143 // APCS-GNU-LABEL: define i16 @f28()
    144 // AAPCS-LABEL: define arm_aapcscc i16 @f28()
    145 struct s28 { _Complex char f0; };
    146 struct s28 f28() {}
    147 
    148 // APCS-GNU-LABEL: define i32 @f29()
    149 // AAPCS-LABEL: define arm_aapcscc i32 @f29()
    150 struct s29 { _Complex short f0; };
    151 struct s29 f29() {}
    152 
    153 // APCS-GNU: define void @f30({{.*}} noalias sret
    154 // AAPCS: define arm_aapcscc void @f30({{.*}} noalias sret
    155 struct s30 { _Complex int f0; };
    156 struct s30 f30() {}
    157 
    158 // PR11905
    159 struct s31 { char x; };
    160 void f31(struct s31 s) { }
    161 // AAPCS: @f31([1 x i32] %s.coerce)
    162 // AAPCS: %s = alloca %struct.s31, align 4
    163 // AAPCS: alloca [1 x i32]
    164 // AAPCS: store [1 x i32] %s.coerce, [1 x i32]*
    165 // APCS-GNU: @f31([1 x i32] %s.coerce)
    166 // APCS-GNU: %s = alloca %struct.s31, align 4
    167 // APCS-GNU: alloca [1 x i32]
    168 // APCS-GNU: store [1 x i32] %s.coerce, [1 x i32]*
    169 
    170 // PR13562
    171 struct s32 { double x; };
    172 void f32(struct s32 s) { }
    173 // AAPCS: @f32([1 x i64] %s.coerce)
    174 // APCS-GNU: @f32([2 x i32] %s.coerce)
    175 
    176 // PR13350
    177 struct s33 { char buf[32*32]; };
    178 void f33(struct s33 s) { }
    179 // APCS-GNU-LABEL: define void @f33(%struct.s33* byval align 1 %s)
    180 // AAPCS-LABEL: define arm_aapcscc void @f33(%struct.s33* byval align 1 %s)
    181 
    182 // PR14048
    183 struct s34 { char c; };
    184 void f34(struct s34 s);
    185 void g34(struct s34 *s) { f34(*s); }
    186 // APCS-GNU: @g34(%struct.s34* %s)
    187 // APCS-GNU: %[[a:.*]] = alloca { [1 x i32] }
    188 // APCS-GNU: %[[gep:.*]] = getelementptr { [1 x i32] }* %[[a]], i32 0, i32 0
    189 // APCS-GNU: load [1 x i32]* %[[gep]]
    190 // AAPCS: @g34(%struct.s34* %s)
    191 // AAPCS: %[[a:.*]] = alloca { [1 x i32] }
    192 // AAPCS: %[[gep:.*]] = getelementptr { [1 x i32] }* %[[a]], i32 0, i32 0
    193 // AAPCS: load [1 x i32]* %[[gep]]
    194 
    195 // rdar://12596507
    196 struct s35
    197 {
    198    float v[18]; //make sure byval is on.
    199 } __attribute__((aligned(16)));
    200 typedef struct s35 s35_with_align;
    201 
    202 typedef __attribute__((neon_vector_type(4))) float float32x4_t;
    203 static __attribute__((__always_inline__, __nodebug__)) float32x4_t vaddq_f32(
    204        float32x4_t __a, float32x4_t __b) {
    205  return __a + __b;
    206 }
    207 float32x4_t f35(int i, s35_with_align s1, s35_with_align s2) {
    208   float32x4_t v = vaddq_f32(*(float32x4_t *)&s1,
    209                             *(float32x4_t *)&s2);
    210   return v;
    211 }
    212 // APCS-GNU-LABEL: define <4 x float> @f35(i32 %i, %struct.s35* byval align 16, %struct.s35* byval align 16)
    213 // APCS-GNU: %[[a:.*]] = alloca %struct.s35, align 16
    214 // APCS-GNU: %[[b:.*]] = bitcast %struct.s35* %[[a]] to i8*
    215 // APCS-GNU: %[[c:.*]] = bitcast %struct.s35* %0 to i8*
    216 // APCS-GNU: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %[[b]], i8* %[[c]]
    217 // APCS-GNU: %[[d:.*]] = bitcast %struct.s35* %[[a]] to <4 x float>*
    218 // APCS-GNU: load <4 x float>* %[[d]], align 16
    219 // AAPCS-LABEL: define arm_aapcscc <4 x float> @f35(i32 %i, %struct.s35* byval align 16, %struct.s35* byval align 16)
    220 // AAPCS: %[[a:.*]] = alloca %struct.s35, align 16
    221 // AAPCS: %[[b:.*]] = bitcast %struct.s35* %[[a]] to i8*
    222 // AAPCS: %[[c:.*]] = bitcast %struct.s35* %0 to i8*
    223 // AAPCS: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %[[b]], i8* %[[c]]
    224 // AAPCS: %[[d:.*]] = bitcast %struct.s35* %[[a]] to <4 x float>*
    225 // AAPCS: load <4 x float>* %[[d]], align 16
    226