clang/test/CodeGen/SystemZ/systemz-abi.c

   1 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu \
   2 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
   3 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-feature +vector \
   4 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
   5 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu z13 \
   6 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
   7 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu arch11 \
   8 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
   9 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu z14 \
  10 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
  11 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu arch12 \
  12 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
  13 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu z15 \
  14 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
  15 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu arch13 \
  16 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
  17 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu arch13 \
  18 // RUN:   -emit-llvm -o - %s -mfloat-abi soft | FileCheck %s \
  19 // RUN:   --check-prefixes=CHECK,SOFT-FLOAT
  20 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu z16 \
  21 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
  22 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu arch14 \
  23 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,HARD-FLOAT
  24 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple s390x-linux-gnu -target-cpu arch14 \
  25 // RUN:   -emit-llvm -o - %s -mfloat-abi soft | FileCheck %s \
  26 // RUN:   --check-prefixes=CHECK,SOFT-FLOAT
  27
  28 // Scalar types
  29
  30 char pass_char(char arg) { return arg; }
  31 // CHECK-LABEL: define{{.*}} signext i8 @pass_char(i8 signext %{{.*}})
  32
  33 short pass_short(short arg) { return arg; }
  34 // CHECK-LABEL: define{{.*}} signext i16 @pass_short(i16 signext %{{.*}})
  35
  36 int pass_int(int arg) { return arg; }
  37 // CHECK-LABEL: define{{.*}} signext i32 @pass_int(i32 signext %{{.*}})
  38
  39 long pass_long(long arg) { return arg; }
  40 // CHECK-LABEL: define{{.*}} i64 @pass_long(i64 %{{.*}})
  41
  42 long long pass_longlong(long long arg) { return arg; }
  43 // CHECK-LABEL: define{{.*}} i64 @pass_longlong(i64 %{{.*}})
  44
  45 __int128 pass_int128(__int128 arg) { return arg; }
  46 // CHECK-LABEL: define{{.*}} void @pass_int128(ptr dead_on_unwind noalias writable sret(i128) align 8 %{{.*}}, ptr %0)
  47
  48 float pass_float(float arg) { return arg; }
  49 // CHECK-LABEL: define{{.*}} float @pass_float(float %{{.*}})
  50
  51 double pass_double(double arg) { return arg; }
  52 // CHECK-LABEL: define{{.*}} double @pass_double(double %{{.*}})
  53
  54 long double pass_longdouble(long double arg) { return arg; }
  55 // CHECK-LABEL: define{{.*}} void @pass_longdouble(ptr dead_on_unwind noalias writable sret(fp128) align 8 %{{.*}}, ptr %0)
  56
  57
  58 // Complex types
  59
  60 _Complex char pass_complex_char(_Complex char arg) { return arg; }
  61 // CHECK-LABEL: define{{.*}} void @pass_complex_char(ptr dead_on_unwind noalias writable sret({ i8, i8 }) align 1 %{{.*}}, ptr %{{.*}}arg)
  62
  63 _Complex short pass_complex_short(_Complex short arg) { return arg; }
  64 // CHECK-LABEL: define{{.*}} void @pass_complex_short(ptr dead_on_unwind noalias writable sret({ i16, i16 }) align 2 %{{.*}}, ptr %{{.*}}arg)
  65
  66 _Complex int pass_complex_int(_Complex int arg) { return arg; }
  67 // CHECK-LABEL: define{{.*}} void @pass_complex_int(ptr dead_on_unwind noalias writable sret({ i32, i32 }) align 4 %{{.*}}, ptr %{{.*}}arg)
  68
  69 _Complex long pass_complex_long(_Complex long arg) { return arg; }
  70 // CHECK-LABEL: define{{.*}} void @pass_complex_long(ptr dead_on_unwind noalias writable sret({ i64, i64 }) align 8 %{{.*}}, ptr %{{.*}}arg)
  71
  72 _Complex long long pass_complex_longlong(_Complex long long arg) { return arg; }
  73 // CHECK-LABEL: define{{.*}} void @pass_complex_longlong(ptr dead_on_unwind noalias writable sret({ i64, i64 }) align 8 %{{.*}}, ptr %{{.*}}arg)
  74
  75 _Complex float pass_complex_float(_Complex float arg) { return arg; }
  76 // CHECK-LABEL: define{{.*}} void @pass_complex_float(ptr dead_on_unwind noalias writable sret({ float, float }) align 4 %{{.*}}, ptr %{{.*}}arg)
  77
  78 _Complex double pass_complex_double(_Complex double arg) { return arg; }
  79 // CHECK-LABEL: define{{.*}} void @pass_complex_double(ptr dead_on_unwind noalias writable sret({ double, double }) align 8 %{{.*}}, ptr %{{.*}}arg)
  80
  81 _Complex long double pass_complex_longdouble(_Complex long double arg) { return arg; }
  82 // CHECK-LABEL: define{{.*}} void @pass_complex_longdouble(ptr dead_on_unwind noalias writable sret({ fp128, fp128 }) align 8 %{{.*}}, ptr %{{.*}}arg)
  83
  84
  85 // Aggregate types
  86
  87 struct agg_1byte { char a[1]; };
  88 struct agg_1byte pass_agg_1byte(struct agg_1byte arg) { return arg; }
  89 // CHECK-LABEL: define{{.*}} void @pass_agg_1byte(ptr dead_on_unwind noalias writable sret(%struct.agg_1byte) align 1 %{{.*}}, i8 noext %{{.*}})
  90
  91 struct agg_2byte { char a[2]; };
  92 struct agg_2byte pass_agg_2byte(struct agg_2byte arg) { return arg; }
  93 // CHECK-LABEL: define{{.*}} void @pass_agg_2byte(ptr dead_on_unwind noalias writable sret(%struct.agg_2byte) align 1 %{{.*}}, i16 noext %{{.*}})
  94
  95 struct agg_3byte { char a[3]; };
  96 struct agg_3byte pass_agg_3byte(struct agg_3byte arg) { return arg; }
  97 // CHECK-LABEL: define{{.*}} void @pass_agg_3byte(ptr dead_on_unwind noalias writable sret(%struct.agg_3byte) align 1 %{{.*}}, ptr %{{.*}})
  98
  99 struct agg_4byte { char a[4]; };
 100 struct agg_4byte pass_agg_4byte(struct agg_4byte arg) { return arg; }
 101 // CHECK-LABEL: define{{.*}} void @pass_agg_4byte(ptr dead_on_unwind noalias writable sret(%struct.agg_4byte) align 1 %{{.*}}, i32 noext %{{.*}})
 102
 103 struct agg_5byte { char a[5]; };
 104 struct agg_5byte pass_agg_5byte(struct agg_5byte arg) { return arg; }
 105 // CHECK-LABEL: define{{.*}} void @pass_agg_5byte(ptr dead_on_unwind noalias writable sret(%struct.agg_5byte) align 1 %{{.*}}, ptr %{{.*}})
 106
 107 struct agg_6byte { char a[6]; };
 108 struct agg_6byte pass_agg_6byte(struct agg_6byte arg) { return arg; }
 109 // CHECK-LABEL: define{{.*}} void @pass_agg_6byte(ptr dead_on_unwind noalias writable sret(%struct.agg_6byte) align 1 %{{.*}}, ptr %{{.*}})
 110
 111 struct agg_7byte { char a[7]; };
 112 struct agg_7byte pass_agg_7byte(struct agg_7byte arg) { return arg; }
 113 // CHECK-LABEL: define{{.*}} void @pass_agg_7byte(ptr dead_on_unwind noalias writable sret(%struct.agg_7byte) align 1 %{{.*}}, ptr %{{.*}})
 114
 115 struct agg_8byte { char a[8]; };
 116 struct agg_8byte pass_agg_8byte(struct agg_8byte arg) { return arg; }
 117 // CHECK-LABEL: define{{.*}} void @pass_agg_8byte(ptr dead_on_unwind noalias writable sret(%struct.agg_8byte) align 1 %{{.*}}, i64 %{{.*}})
 118
 119 struct agg_16byte { char a[16]; };
 120 struct agg_16byte pass_agg_16byte(struct agg_16byte arg) { return arg; }
 121 // CHECK-LABEL: define{{.*}} void @pass_agg_16byte(ptr dead_on_unwind noalias writable sret(%struct.agg_16byte) align 1 %{{.*}}, ptr %{{.*}})
 122
 123
 124 // Float-like aggregate types
 125
 126 struct agg_float { float a; };
 127 struct agg_float pass_agg_float(struct agg_float arg) { return arg; }
 128 // HARD-FLOAT-LABEL: define{{.*}} void @pass_agg_float(ptr dead_on_unwind noalias writable sret(%struct.agg_float) align 4 %{{.*}}, float %{{.*}})
 129 // SOFT-FLOAT-LABEL: define{{.*}} void @pass_agg_float(ptr dead_on_unwind noalias writable sret(%struct.agg_float) align 4 %{{.*}}, i32 noext %{{.*}})
 130
 131 struct agg_double { double a; };
 132 struct agg_double pass_agg_double(struct agg_double arg) { return arg; }
 133 // HARD-FLOAT-LABEL: define{{.*}} void @pass_agg_double(ptr dead_on_unwind noalias writable sret(%struct.agg_double) align 8 %{{.*}}, double %{{.*}})
 134 // SOFT-FLOAT-LABEL: define{{.*}} void @pass_agg_double(ptr dead_on_unwind noalias writable sret(%struct.agg_double) align 8 %{{.*}}, i64 %{{.*}})
 135
 136 struct agg_longdouble { long double a; };
 137 struct agg_longdouble pass_agg_longdouble(struct agg_longdouble arg) { return arg; }
 138 // CHECK-LABEL: define{{.*}} void @pass_agg_longdouble(ptr dead_on_unwind noalias writable sret(%struct.agg_longdouble) align 8 %{{.*}}, ptr %{{.*}})
 139
 140 struct agg_float_a8 { float a __attribute__((aligned (8))); };
 141 struct agg_float_a8 pass_agg_float_a8(struct agg_float_a8 arg) { return arg; }
 142 // HARD-FLOAT-LABEL: define{{.*}} void @pass_agg_float_a8(ptr dead_on_unwind noalias writable sret(%struct.agg_float_a8) align 8 %{{.*}}, double %{{.*}})
 143 // SOFT-FLOAT-LABEL: define{{.*}} void @pass_agg_float_a8(ptr dead_on_unwind noalias writable sret(%struct.agg_float_a8) align 8 %{{.*}}, i64 %{{.*}})
 144
 145 struct agg_float_a16 { float a __attribute__((aligned (16))); };
 146 struct agg_float_a16 pass_agg_float_a16(struct agg_float_a16 arg) { return arg; }
 147 // CHECK-LABEL: define{{.*}} void @pass_agg_float_a16(ptr dead_on_unwind noalias writable sret(%struct.agg_float_a16) align 16 %{{.*}}, ptr %{{.*}})
 148
 149
 150 // Verify that the following are *not* float-like aggregate types
 151
 152 struct agg_nofloat1 { float a; float b; };
 153 struct agg_nofloat1 pass_agg_nofloat1(struct agg_nofloat1 arg) { return arg; }
 154 // CHECK-LABEL: define{{.*}} void @pass_agg_nofloat1(ptr dead_on_unwind noalias writable sret(%struct.agg_nofloat1) align 4 %{{.*}}, i64 %{{.*}})
 155
 156 struct agg_nofloat2 { float a; int b; };
 157 struct agg_nofloat2 pass_agg_nofloat2(struct agg_nofloat2 arg) { return arg; }
 158 // CHECK-LABEL: define{{.*}} void @pass_agg_nofloat2(ptr dead_on_unwind noalias writable sret(%struct.agg_nofloat2) align 4 %{{.*}}, i64 %{{.*}})
 159
 160 struct agg_nofloat3 { float a; int : 0; };
 161 struct agg_nofloat3 pass_agg_nofloat3(struct agg_nofloat3 arg) { return arg; }
 162 // CHECK-LABEL: define{{.*}} void @pass_agg_nofloat3(ptr dead_on_unwind noalias writable sret(%struct.agg_nofloat3) align 4 %{{.*}}, i32 noext %{{.*}})
 163
 164
 165 // Union types likewise are *not* float-like aggregate types
 166
 167 union union_float { float a; };
 168 union union_float pass_union_float(union union_float arg) { return arg; }
 169 // CHECK-LABEL: define{{.*}} void @pass_union_float(ptr dead_on_unwind noalias writable sret(%union.union_float) align 4 %{{.*}}, i32 noext %{{.*}})
 170
 171 union union_double { double a; };
 172 union union_double pass_union_double(union union_double arg) { return arg; }
 173 // CHECK-LABEL: define{{.*}} void @pass_union_double(ptr dead_on_unwind noalias writable sret(%union.union_double) align 8 %{{.*}}, i64 %{{.*}})
 174
 175
 176 // Verify that transparent unions are passed like their first member (but returned like a union)
 177
 178 union tu_char { char a; } __attribute__((transparent_union));
 179 union tu_char pass_tu_char(union tu_char arg) { return arg; }
 180 // CHECK-LABEL: define{{.*}} void @pass_tu_char(ptr dead_on_unwind noalias writable sret(%union.tu_char) align 1 %{{.*}}, i8 signext %{{.*}})
 181
 182 union tu_short { short a; } __attribute__((transparent_union));
 183 union tu_short pass_tu_short(union tu_short arg) { return arg; }
 184 // CHECK-LABEL: define{{.*}} void @pass_tu_short(ptr dead_on_unwind noalias writable sret(%union.tu_short) align 2 %{{.*}}, i16 signext %{{.*}})
 185
 186 union tu_int { int a; } __attribute__((transparent_union));
 187 union tu_int pass_tu_int(union tu_int arg) { return arg; }
 188 // CHECK-LABEL: define{{.*}} void @pass_tu_int(ptr dead_on_unwind noalias writable sret(%union.tu_int) align 4 %{{.*}}, i32 signext %{{.*}})
 189
 190 union tu_long { long a; } __attribute__((transparent_union));
 191 union tu_long pass_tu_long(union tu_long arg) { return arg; }
 192 // CHECK-LABEL: define{{.*}} void @pass_tu_long(ptr dead_on_unwind noalias writable sret(%union.tu_long) align 8 %{{.*}}, i64 %{{.*}})
 193
 194 union tu_ptr { void *a; } __attribute__((transparent_union));
 195 union tu_ptr pass_tu_ptr(union tu_ptr arg) { return arg; }
 196 // CHECK-LABEL: define{{.*}} void @pass_tu_ptr(ptr dead_on_unwind noalias writable sret(%union.tu_ptr) align 8 %{{.*}}, ptr %{{.*}})
 197
 198
 199 // Accessing variable argument lists
 200
 201 int va_int(__builtin_va_list l) { return __builtin_va_arg(l, int); }
 202 // CHECK-LABEL: define{{.*}} signext i32 @va_int(ptr %{{.*}})
 203 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 204 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 205 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 206 // CHECK: br i1 [[FITS_IN_REGS]],
 207 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 208 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 20
 209 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 210 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 211 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 212 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 213 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 214 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 215 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 216 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 4
 217 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 218 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 219 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 220 // CHECK: [[RET:%[^ ]+]] = load i32, ptr [[VA_ARG_ADDR]]
 221 // CHECK: ret i32 [[RET]]
 222
 223 long va_long(__builtin_va_list l) { return __builtin_va_arg(l, long); }
 224 // CHECK-LABEL: define{{.*}} i64 @va_long(ptr %{{.*}})
 225 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 226 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 227 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 228 // CHECK: br i1 [[FITS_IN_REGS]],
 229 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 230 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 231 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 232 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 233 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 234 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 235 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 236 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 237 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 238 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 239 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 240 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 241 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 242 // CHECK: [[RET:%[^ ]+]] = load i64, ptr [[VA_ARG_ADDR]]
 243 // CHECK: ret i64 [[RET]]
 244
 245 long long va_longlong(__builtin_va_list l) { return __builtin_va_arg(l, long long); }
 246 // CHECK-LABEL: define{{.*}} i64 @va_longlong(ptr %{{.*}})
 247 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 248 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 249 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 250 // CHECK: br i1 [[FITS_IN_REGS]],
 251 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 252 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 253 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 254 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 255 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 256 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 257 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 258 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 259 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 260 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 261 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 262 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 263 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 264 // CHECK: [[RET:%[^ ]+]] = load i64, ptr [[VA_ARG_ADDR]]
 265 // CHECK: ret i64 [[RET]]
 266
 267 double va_double(__builtin_va_list l) { return __builtin_va_arg(l, double); }
 268 // CHECK-LABEL: define{{.*}} double @va_double(ptr %{{.*}})
 269 // HARD-FLOAT: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 1
 270 // SOFT-FLOAT: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 271 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 272 // HARD-FLOAT: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 4
 273 // SOFT-FLOAT: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 274 // CHECK: br i1 [[FITS_IN_REGS]],
 275 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 276 // HARD-FLOAT: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 128
 277 // SOFT-FLOAT: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 278 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 279 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 280 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 281 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 282 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 283 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 284 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 285 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 286 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 287 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 288 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 289 // CHECK: [[RET:%[^ ]+]] = load double, ptr [[VA_ARG_ADDR]]
 290 // CHECK: ret double [[RET]]
 291
 292 long double va_longdouble(__builtin_va_list l) { return __builtin_va_arg(l, long double); }
 293 // CHECK-LABEL: define{{.*}} void @va_longdouble(ptr dead_on_unwind noalias writable sret(fp128) align 8 %{{.*}}, ptr %{{.*}})
 294 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 295 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 296 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 297 // CHECK: br i1 [[FITS_IN_REGS]],
 298 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 299 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 300 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 301 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 302 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 303 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 304 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 305 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 306 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 307 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 308 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 309 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 310 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 311 // CHECK: [[INDIRECT_ARG:%[^ ]+]] = load ptr, ptr [[VA_ARG_ADDR]]
 312 // CHECK: [[RET:%[^ ]+]] = load fp128, ptr [[INDIRECT_ARG]]
 313 // CHECK: store fp128 [[RET]], ptr %{{.*}}
 314 // CHECK: ret void
 315
 316 _Complex char va_complex_char(__builtin_va_list l) { return __builtin_va_arg(l, _Complex char); }
 317 // CHECK-LABEL: define{{.*}} void @va_complex_char(ptr dead_on_unwind noalias writable sret({ i8, i8 }) align 1 %{{.*}}, ptr %{{.*}}
 318 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 319 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 320 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 321 // CHECK: br i1 [[FITS_IN_REGS]],
 322 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 323 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 324 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 325 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 326 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 327 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 328 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 329 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 330 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 331 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 332 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 333 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 334 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 335 // CHECK: [[INDIRECT_ARG:%[^ ]+]] = load ptr, ptr [[VA_ARG_ADDR]]
 336 // CHECK: ret void
 337
 338 struct agg_1byte va_agg_1byte(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_1byte); }
 339 // CHECK-LABEL: define{{.*}} void @va_agg_1byte(ptr dead_on_unwind noalias writable sret(%struct.agg_1byte) align 1 %{{.*}}, ptr %{{.*}}
 340 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 341 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 342 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 343 // CHECK: br i1 [[FITS_IN_REGS]],
 344 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 345 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 23
 346 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 347 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 348 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 349 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 350 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 351 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 352 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 353 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 7
 354 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 355 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 356 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 357 // CHECK: ret void
 358
 359 struct agg_2byte va_agg_2byte(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_2byte); }
 360 // CHECK-LABEL: define{{.*}} void @va_agg_2byte(ptr dead_on_unwind noalias writable sret(%struct.agg_2byte) align 1 %{{.*}}, ptr %{{.*}}
 361 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 362 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 363 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 364 // CHECK: br i1 [[FITS_IN_REGS]],
 365 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 366 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 22
 367 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 368 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 369 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 370 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 371 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 372 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 373 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 374 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 6
 375 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 376 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 377 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 378 // CHECK: ret void
 379
 380 struct agg_3byte va_agg_3byte(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_3byte); }
 381 // CHECK-LABEL: define{{.*}} void @va_agg_3byte(ptr dead_on_unwind noalias writable sret(%struct.agg_3byte) align 1 %{{.*}}, ptr %{{.*}}
 382 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 383 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 384 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 385 // CHECK: br i1 [[FITS_IN_REGS]],
 386 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 387 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 388 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 389 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 390 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 391 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 392 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 393 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 394 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 395 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 396 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 397 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 398 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 399 // CHECK: [[INDIRECT_ARG:%[^ ]+]] = load ptr, ptr [[VA_ARG_ADDR]]
 400 // CHECK: ret void
 401
 402 struct agg_4byte va_agg_4byte(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_4byte); }
 403 // CHECK-LABEL: define{{.*}} void @va_agg_4byte(ptr dead_on_unwind noalias writable sret(%struct.agg_4byte) align 1 %{{.*}}, ptr %{{.*}}
 404 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 405 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 406 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 407 // CHECK: br i1 [[FITS_IN_REGS]],
 408 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 409 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 20
 410 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 411 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 412 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 413 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 414 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 415 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 416 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 417 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 4
 418 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 419 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 420 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 421 // CHECK: ret void
 422
 423 struct agg_8byte va_agg_8byte(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_8byte); }
 424 // CHECK-LABEL: define{{.*}} void @va_agg_8byte(ptr dead_on_unwind noalias writable sret(%struct.agg_8byte) align 1 %{{.*}}, ptr %{{.*}}
 425 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 426 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 427 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 428 // CHECK: br i1 [[FITS_IN_REGS]],
 429 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 430 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 431 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 432 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 433 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 434 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 435 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 436 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 437 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 438 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 439 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 440 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 441 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 442 // CHECK: ret void
 443
 444 struct agg_float va_agg_float(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_float); }
 445 // CHECK-LABEL: define{{.*}} void @va_agg_float(ptr dead_on_unwind noalias writable sret(%struct.agg_float) align 4 %{{.*}}, ptr %{{.*}}
 446 // HARD-FLOAT: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 1
 447 // SOFT-FLOAT: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 448 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 449 // HARD-FLOAT: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 4
 450 // SOFT-FLOAT: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 451 // CHECK: br i1 [[FITS_IN_REGS]],
 452 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 453 // HARD-FLOAT: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 128
 454 // SOFT-FLOAT: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 20
 455 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 456 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 457 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 458 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 459 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 460 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 461 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 462 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 4
 463 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 464 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 465 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 466 // CHECK: ret void
 467
 468 struct agg_double va_agg_double(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_double); }
 469 // CHECK-LABEL: define{{.*}} void @va_agg_double(ptr dead_on_unwind noalias writable sret(%struct.agg_double) align 8 %{{.*}}, ptr %{{.*}}
 470 // HARD-FLOAT: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 1
 471 // SOFT-FLOAT: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 472 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 473 // HARD-FLOAT: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 4
 474 // SOFT-FLOAT: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 475 // CHECK: br i1 [[FITS_IN_REGS]],
 476 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 477 // HARD-FLOAT: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 128
 478 // SOFT-FLOAT: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 479 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 480 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 481 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 482 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 483 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 484 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 485 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 486 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 487 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 488 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 489 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 490 // CHECK: ret void
 491
 492 struct agg_longdouble va_agg_longdouble(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_longdouble); }
 493 // CHECK-LABEL: define{{.*}} void @va_agg_longdouble(ptr dead_on_unwind noalias writable sret(%struct.agg_longdouble) align 8 %{{.*}}, ptr %{{.*}}
 494 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 495 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 496 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 497 // CHECK: br i1 [[FITS_IN_REGS]],
 498 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 499 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 500 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 501 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 502 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 503 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 504 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 505 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 506 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 507 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 508 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 509 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 510 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 511 // CHECK: [[INDIRECT_ARG:%[^ ]+]] = load ptr, ptr [[VA_ARG_ADDR]]
 512 // CHECK: ret void
 513
 514 struct agg_float_a8 va_agg_float_a8(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_float_a8); }
 515 // CHECK-LABEL: define{{.*}} void @va_agg_float_a8(ptr dead_on_unwind noalias writable sret(%struct.agg_float_a8) align 8 %{{.*}}, ptr %{{.*}}
 516 // HARD-FLOAT: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 1
 517 // SOFT-FLOAT: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 518 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 519 // HARD-FLOAT: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 4
 520 // SOFT-FLOAT: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 521 // CHECK: br i1 [[FITS_IN_REGS]],
 522 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 523 // HARD-FLOAT: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 128
 524 // SOFT-FLOAT: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 525 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 526 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 527 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 528 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 529 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 530 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 531 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 532 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 533 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 534 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 535 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 536 // CHECK: ret void
 537
 538 struct agg_float_a16 va_agg_float_a16(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_float_a16); }
 539 // CHECK-LABEL: define{{.*}} void @va_agg_float_a16(ptr dead_on_unwind noalias writable sret(%struct.agg_float_a16) align 16 %{{.*}}, ptr %{{.*}}
 540 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 541 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 542 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 543 // CHECK: br i1 [[FITS_IN_REGS]],
 544 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 545 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 546 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 547 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 548 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 549 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 550 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 551 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 552 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 553 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 554 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 555 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 556 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 557 // CHECK: [[INDIRECT_ARG:%[^ ]+]] = load ptr, ptr [[VA_ARG_ADDR]]
 558 // CHECK: ret void
 559
 560 struct agg_nofloat1 va_agg_nofloat1(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_nofloat1); }
 561 // CHECK-LABEL: define{{.*}} void @va_agg_nofloat1(ptr dead_on_unwind noalias writable sret(%struct.agg_nofloat1) align 4 %{{.*}}, ptr %{{.*}}
 562 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 563 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 564 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 565 // CHECK: br i1 [[FITS_IN_REGS]],
 566 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 567 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 568 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 569 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 570 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 571 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 572 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 573 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 574 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 575 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 576 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 577 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 578 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 579 // CHECK: ret void
 580
 581 struct agg_nofloat2 va_agg_nofloat2(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_nofloat2); }
 582 // CHECK-LABEL: define{{.*}} void @va_agg_nofloat2(ptr dead_on_unwind noalias writable sret(%struct.agg_nofloat2) align 4 %{{.*}}, ptr %{{.*}}
 583 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 584 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 585 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 586 // CHECK: br i1 [[FITS_IN_REGS]],
 587 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 588 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 16
 589 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 590 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 591 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 592 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 593 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 594 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 595 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 596 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 0
 597 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 598 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 599 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 600 // CHECK: ret void
 601
 602 struct agg_nofloat3 va_agg_nofloat3(__builtin_va_list l) { return __builtin_va_arg(l, struct agg_nofloat3); }
 603 // CHECK-LABEL: define{{.*}} void @va_agg_nofloat3(ptr dead_on_unwind noalias writable sret(%struct.agg_nofloat3) align 4 %{{.*}}, ptr %{{.*}}
 604 // CHECK: [[REG_COUNT_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 0
 605 // CHECK: [[REG_COUNT:%[^ ]+]] = load i64, ptr [[REG_COUNT_PTR]]
 606 // CHECK: [[FITS_IN_REGS:%[^ ]+]] = icmp ult i64 [[REG_COUNT]], 5
 607 // CHECK: br i1 [[FITS_IN_REGS]],
 608 // CHECK: [[SCALED_REG_COUNT:%[^ ]+]] = mul i64 [[REG_COUNT]], 8
 609 // CHECK: [[REG_OFFSET:%[^ ]+]] = add i64 [[SCALED_REG_COUNT]], 20
 610 // CHECK: [[REG_SAVE_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 3
 611 // CHECK: [[REG_SAVE_AREA:%[^ ]+]] = load ptr, ptr [[REG_SAVE_AREA_PTR:[^ ]+]]
 612 // CHECK: [[RAW_REG_ADDR:%[^ ]+]] = getelementptr i8, ptr [[REG_SAVE_AREA]], i64 [[REG_OFFSET]]
 613 // CHECK: [[REG_COUNT1:%[^ ]+]] = add i64 [[REG_COUNT]], 1
 614 // CHECK: store i64 [[REG_COUNT1]], ptr [[REG_COUNT_PTR]]
 615 // CHECK: [[OVERFLOW_ARG_AREA_PTR:%[^ ]+]] = getelementptr inbounds nuw %struct.__va_list_tag, ptr %{{.*}}, i32 0, i32 2
 616 // CHECK: [[OVERFLOW_ARG_AREA:%[^ ]+]] = load ptr, ptr [[OVERFLOW_ARG_AREA_PTR]]
 617 // CHECK: [[RAW_MEM_ADDR:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 4
 618 // CHECK: [[OVERFLOW_ARG_AREA2:%[^ ]+]] = getelementptr i8, ptr [[OVERFLOW_ARG_AREA]], i64 8
 619 // CHECK: store ptr [[OVERFLOW_ARG_AREA2]], ptr [[OVERFLOW_ARG_AREA_PTR]]
 620 // CHECK: [[VA_ARG_ADDR:%[^ ]+]] = phi ptr [ [[RAW_REG_ADDR]], %{{.*}} ], [ [[RAW_MEM_ADDR]], %{{.*}} ]
 621 // CHECK: ret void
 622