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      1 ; RUN: llc < %s | FileCheck %s --check-prefix=ASM
      2 ; RUN: llc -filetype=obj < %s | llvm-readobj -codeview | FileCheck %s --check-prefix=OBJ
      3 
      4 ; C source:
      5 ; int getval(void);
      6 ; void usevals(int, ...);
      7 ; int csr1() {
      8 ;   int a = getval();
      9 ;   usevals(a);
     10 ;   usevals(a);
     11 ;   return a;
     12 ; }
     13 ; int csr2() {
     14 ;   int a = getval();
     15 ;   int b = getval();
     16 ;   usevals(a, b);
     17 ;   usevals(a, b);
     18 ;   return a;
     19 ; }
     20 ; int csr3() {
     21 ;   int a = getval();
     22 ;   int b = getval();
     23 ;   int c = getval();
     24 ;   usevals(a, b, c);
     25 ;   usevals(a, b, c);
     26 ;   return a;
     27 ; }
     28 ; int csr4() {
     29 ;   int a = getval();
     30 ;   int b = getval();
     31 ;   int c = getval();
     32 ;   int d = getval();
     33 ;   usevals(a, b, c, d);
     34 ;   usevals(a, b, c, d);
     35 ;   return a;
     36 ; }
     37 ; int spill() {
     38 ;   int a = getval();
     39 ;   int b = getval();
     40 ;   int c = getval();
     41 ;   int d = getval();
     42 ;   int e = getval();
     43 ;   usevals(a, b, c, d, e);
     44 ;   usevals(a, b, c, d, e);
     45 ;   return a;
     46 ; }
     47 
     48 ; ModuleID = 't.c'
     49 source_filename = "t.c"
     50 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
     51 target triple = "i386-pc-windows-msvc19.11.25508"
     52 
     53 ; Function Attrs: nounwind
     54 define i32 @csr1() local_unnamed_addr #0 !dbg !8 {
     55 entry:
     56   %call = tail call i32 @getval() #3, !dbg !14
     57   tail call void @llvm.dbg.value(metadata i32 %call, metadata !13, metadata !DIExpression()), !dbg !15
     58   tail call void (i32, ...) @usevals(i32 %call) #3, !dbg !16
     59   tail call void (i32, ...) @usevals(i32 %call) #3, !dbg !17
     60   ret i32 %call, !dbg !18
     61 }
     62 
     63 ; ASM-LABEL: _csr1:                                  # @csr1
     64 ; ASM:         .cv_fpo_proc    _csr1
     65 ; ASM:         pushl   %esi
     66 ; ASM:         .cv_fpo_pushreg %esi
     67 ; ASM:         .cv_fpo_endprologue
     68 ; ASM:         #DEBUG_VALUE: csr1:a <- $esi
     69 ; ASM:         retl
     70 ; ASM:         .cv_fpo_endproc
     71 
     72 ; OBJ-LABEL: SubSectionType: FrameData (0xF5)
     73 ; OBJ-NEXT: SubSectionSize:
     74 ; OBJ-NEXT: LinkageName: _csr1
     75 ; OBJ-NEXT: FrameData {
     76 ; OBJ-NEXT:   RvaStart: 0x0
     77 ; OBJ-NEXT:   CodeSize: 0x1E
     78 ; OBJ-NEXT:   LocalSize: 0x0
     79 ; OBJ-NEXT:   ParamsSize: 0x0
     80 ; OBJ-NEXT:   MaxStackSize: 0x0
     81 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + =
     82 ; OBJ-NEXT:   PrologSize: 0x1
     83 ; OBJ-NEXT:   SavedRegsSize: 0x0
     84 ; OBJ-NEXT:   Flags [ (0x4)
     85 ; OBJ-NEXT:     IsFunctionStart (0x4)
     86 ; OBJ-NEXT:   ]
     87 ; OBJ-NEXT: }
     88 ; OBJ-NEXT: FrameData {
     89 ; OBJ-NEXT:   RvaStart: 0x1
     90 ; OBJ-NEXT:   CodeSize: 0x1D
     91 ; OBJ-NEXT:   LocalSize: 0x0
     92 ; OBJ-NEXT:   ParamsSize: 0x0
     93 ; OBJ-NEXT:   MaxStackSize: 0x0
     94 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $esi $T0 4 - ^ =
     95 ; OBJ-NEXT:   PrologSize: 0x0
     96 ; OBJ-NEXT:   SavedRegsSize: 0x4
     97 ; OBJ-NEXT:   Flags [ (0x0)
     98 ; OBJ-NEXT:   ]
     99 ; OBJ-NEXT: }
    100 ; OBJ-NOT: FrameData
    101 
    102 declare i32 @getval() local_unnamed_addr #1
    103 
    104 declare void @usevals(i32, ...) local_unnamed_addr #1
    105 
    106 ; Function Attrs: nounwind
    107 define i32 @csr2() local_unnamed_addr #0 !dbg !19 {
    108 entry:
    109   %call = tail call i32 @getval() #3, !dbg !23
    110   tail call void @llvm.dbg.value(metadata i32 %call, metadata !21, metadata !DIExpression()), !dbg !24
    111   %call1 = tail call i32 @getval() #3, !dbg !25
    112   tail call void @llvm.dbg.value(metadata i32 %call1, metadata !22, metadata !DIExpression()), !dbg !26
    113   tail call void (i32, ...) @usevals(i32 %call, i32 %call1) #3, !dbg !27
    114   tail call void (i32, ...) @usevals(i32 %call, i32 %call1) #3, !dbg !28
    115   ret i32 %call, !dbg !29
    116 }
    117 
    118 ; ASM-LABEL: _csr2:                                  # @csr2
    119 ; ASM:         .cv_fpo_proc    _csr2
    120 ; ASM:         pushl   %edi
    121 ; ASM:         .cv_fpo_pushreg %edi
    122 ; ASM:         pushl   %esi
    123 ; ASM:         .cv_fpo_pushreg %esi
    124 ; ASM:         .cv_fpo_endprologue
    125 ; ASM:         #DEBUG_VALUE: csr2:a <- $esi
    126 ; ASM:         #DEBUG_VALUE: csr2:b <- $edi
    127 ; ASM:         retl
    128 ; ASM:         .cv_fpo_endproc
    129 
    130 ; OBJ-LABEL: SubSectionType: FrameData (0xF5)
    131 ; OBJ-NEXT: SubSectionSize:
    132 ; OBJ-NEXT: LinkageName: _csr2
    133 ; OBJ-NEXT: FrameData {
    134 ; OBJ-NEXT:   RvaStart: 0x0
    135 ; OBJ-NEXT:   CodeSize: 0x29
    136 ; OBJ-NEXT:   LocalSize: 0x0
    137 ; OBJ-NEXT:   ParamsSize: 0x0
    138 ; OBJ-NEXT:   MaxStackSize: 0x0
    139 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + =
    140 ; OBJ-NEXT:   PrologSize: 0x2
    141 ; OBJ-NEXT:   SavedRegsSize: 0x0
    142 ; OBJ-NEXT:   Flags [ (0x4)
    143 ; OBJ-NEXT:     IsFunctionStart (0x4)
    144 ; OBJ-NEXT:   ]
    145 ; OBJ-NEXT: }
    146 ; OBJ-NEXT: FrameData {
    147 ; OBJ-NEXT:   RvaStart: 0x1
    148 ; OBJ-NEXT:   CodeSize: 0x28
    149 ; OBJ-NEXT:   LocalSize: 0x0
    150 ; OBJ-NEXT:   ParamsSize: 0x0
    151 ; OBJ-NEXT:   MaxStackSize: 0x0
    152 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $edi $T0 4 - ^ =
    153 ; OBJ-NEXT:   PrologSize: 0x1
    154 ; OBJ-NEXT:   SavedRegsSize: 0x4
    155 ; OBJ-NEXT:   Flags [ (0x0)
    156 ; OBJ-NEXT:   ]
    157 ; OBJ-NEXT: }
    158 ; OBJ-NEXT: FrameData {
    159 ; OBJ-NEXT:   RvaStart: 0x2
    160 ; OBJ-NEXT:   CodeSize: 0x27
    161 ; OBJ-NEXT:   LocalSize: 0x0
    162 ; OBJ-NEXT:   ParamsSize: 0x0
    163 ; OBJ-NEXT:   MaxStackSize: 0x0
    164 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $edi $T0 4 - ^ = $esi $T0 8 - ^ =
    165 ; OBJ-NEXT:   PrologSize: 0x0
    166 ; OBJ-NEXT:   SavedRegsSize: 0x8
    167 ; OBJ-NEXT:   Flags [ (0x0)
    168 ; OBJ-NEXT:   ]
    169 ; OBJ-NEXT: }
    170 ; OBJ-NOT: FrameData
    171 
    172 ; Function Attrs: nounwind
    173 define i32 @csr3() local_unnamed_addr #0 !dbg !30 {
    174 entry:
    175   %call = tail call i32 @getval() #3, !dbg !35
    176   tail call void @llvm.dbg.value(metadata i32 %call, metadata !32, metadata !DIExpression()), !dbg !36
    177   %call1 = tail call i32 @getval() #3, !dbg !37
    178   tail call void @llvm.dbg.value(metadata i32 %call1, metadata !33, metadata !DIExpression()), !dbg !38
    179   %call2 = tail call i32 @getval() #3, !dbg !39
    180   tail call void @llvm.dbg.value(metadata i32 %call2, metadata !34, metadata !DIExpression()), !dbg !40
    181   tail call void (i32, ...) @usevals(i32 %call, i32 %call1, i32 %call2) #3, !dbg !41
    182   tail call void (i32, ...) @usevals(i32 %call, i32 %call1, i32 %call2) #3, !dbg !42
    183   ret i32 %call, !dbg !43
    184 }
    185 
    186 ; ASM-LABEL: _csr3:                                  # @csr3
    187 ; ASM:         .cv_fpo_proc    _csr3
    188 ; ASM:         pushl   %ebx
    189 ; ASM:         .cv_fpo_pushreg %ebx
    190 ; ASM:         pushl   %edi
    191 ; ASM:         .cv_fpo_pushreg %edi
    192 ; ASM:         pushl   %esi
    193 ; ASM:         .cv_fpo_pushreg %esi
    194 ; ASM:         .cv_fpo_endprologue
    195 ; ASM:         #DEBUG_VALUE: csr3:a <- $esi
    196 ; ASM:         #DEBUG_VALUE: csr3:b <- $edi
    197 ; ASM:         #DEBUG_VALUE: csr3:c <- $ebx
    198 ; ASM:         retl
    199 ; ASM:         .cv_fpo_endproc
    200 
    201 ; OBJ-LABEL: SubSectionType: FrameData (0xF5)
    202 ; OBJ-NEXT: SubSectionSize:
    203 ; OBJ-NEXT: LinkageName: _csr3
    204 ; OBJ-NEXT: FrameData {
    205 ; OBJ-NEXT:   RvaStart: 0x0
    206 ; OBJ-NEXT:   CodeSize: 0x34
    207 ; OBJ-NEXT:   LocalSize: 0x0
    208 ; OBJ-NEXT:   ParamsSize: 0x0
    209 ; OBJ-NEXT:   MaxStackSize: 0x0
    210 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + =
    211 ; OBJ-NEXT:   PrologSize: 0x3
    212 ; OBJ-NEXT:   SavedRegsSize: 0x0
    213 ; OBJ-NEXT:   Flags [ (0x4)
    214 ; OBJ-NEXT:     IsFunctionStart (0x4)
    215 ; OBJ-NEXT:   ]
    216 ; OBJ-NEXT: }
    217 ; OBJ-NEXT: FrameData {
    218 ; OBJ-NEXT:   RvaStart: 0x1
    219 ; OBJ-NEXT:   CodeSize: 0x33
    220 ; OBJ-NEXT:   LocalSize: 0x0
    221 ; OBJ-NEXT:   ParamsSize: 0x0
    222 ; OBJ-NEXT:   MaxStackSize: 0x0
    223 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebx $T0 4 - ^ =
    224 ; OBJ-NEXT:   PrologSize: 0x2
    225 ; OBJ-NEXT:   SavedRegsSize: 0x4
    226 ; OBJ-NEXT:   Flags [ (0x0)
    227 ; OBJ-NEXT:   ]
    228 ; OBJ-NEXT: }
    229 ; OBJ-NEXT: FrameData {
    230 ; OBJ-NEXT:   RvaStart: 0x2
    231 ; OBJ-NEXT:   CodeSize: 0x32
    232 ; OBJ-NEXT:   LocalSize: 0x0
    233 ; OBJ-NEXT:   ParamsSize: 0x0
    234 ; OBJ-NEXT:   MaxStackSize: 0x0
    235 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebx $T0 4 - ^ = $edi $T0 8 - ^ =
    236 ; OBJ-NEXT:   PrologSize: 0x1
    237 ; OBJ-NEXT:   SavedRegsSize: 0x8
    238 ; OBJ-NEXT:   Flags [ (0x0)
    239 ; OBJ-NEXT:   ]
    240 ; OBJ-NEXT: }
    241 ; OBJ-NEXT: FrameData {
    242 ; OBJ-NEXT:   RvaStart: 0x3
    243 ; OBJ-NEXT:   CodeSize: 0x31
    244 ; OBJ-NEXT:   LocalSize: 0x0
    245 ; OBJ-NEXT:   ParamsSize: 0x0
    246 ; OBJ-NEXT:   MaxStackSize: 0x0
    247 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebx $T0 4 - ^ = $edi $T0 8 - ^ = $esi $T0 12 - ^ =
    248 ; OBJ-NEXT:   PrologSize: 0x0
    249 ; OBJ-NEXT:   SavedRegsSize: 0xC
    250 ; OBJ-NEXT:   Flags [ (0x0)
    251 ; OBJ-NEXT:   ]
    252 ; OBJ-NEXT: }
    253 ; OBJ-NOT: FrameData
    254 
    255 ; Function Attrs: nounwind
    256 define i32 @csr4() local_unnamed_addr #0 !dbg !44 {
    257 entry:
    258   %call = tail call i32 @getval() #3, !dbg !50
    259   tail call void @llvm.dbg.value(metadata i32 %call, metadata !46, metadata !DIExpression()), !dbg !51
    260   %call1 = tail call i32 @getval() #3, !dbg !52
    261   tail call void @llvm.dbg.value(metadata i32 %call1, metadata !47, metadata !DIExpression()), !dbg !53
    262   %call2 = tail call i32 @getval() #3, !dbg !54
    263   tail call void @llvm.dbg.value(metadata i32 %call2, metadata !48, metadata !DIExpression()), !dbg !55
    264   %call3 = tail call i32 @getval() #3, !dbg !56
    265   tail call void @llvm.dbg.value(metadata i32 %call3, metadata !49, metadata !DIExpression()), !dbg !57
    266   tail call void (i32, ...) @usevals(i32 %call, i32 %call1, i32 %call2, i32 %call3) #3, !dbg !58
    267   tail call void (i32, ...) @usevals(i32 %call, i32 %call1, i32 %call2, i32 %call3) #3, !dbg !59
    268   ret i32 %call, !dbg !60
    269 }
    270 
    271 ; ASM-LABEL: _csr4:                                  # @csr4
    272 ; ASM:         .cv_fpo_proc    _csr4
    273 ; ASM:         pushl   %ebp
    274 ; ASM:         .cv_fpo_pushreg %ebp
    275 ; ASM:         pushl   %ebx
    276 ; ASM:         .cv_fpo_pushreg %ebx
    277 ; ASM:         pushl   %edi
    278 ; ASM:         .cv_fpo_pushreg %edi
    279 ; ASM:         pushl   %esi
    280 ; ASM:         .cv_fpo_pushreg %esi
    281 ; ASM:         .cv_fpo_endprologue
    282 ; ASM:         #DEBUG_VALUE: csr4:a <- $esi
    283 ; ASM:         #DEBUG_VALUE: csr4:b <- $edi
    284 ; ASM:         #DEBUG_VALUE: csr4:c <- $ebx
    285 ; ASM:         #DEBUG_VALUE: csr4:d <- $ebp
    286 ; ASM:         retl
    287 ; ASM:         .cv_fpo_endproc
    288 
    289 ; OBJ-LABEL: SubSectionType: FrameData (0xF5)
    290 ; OBJ-NEXT: SubSectionSize:
    291 ; OBJ-NEXT: LinkageName: _csr4
    292 ; OBJ-NEXT: FrameData {
    293 ; OBJ-NEXT:   RvaStart: 0x0
    294 ; OBJ-NEXT:   CodeSize: 0x3F
    295 ; OBJ-NEXT:   LocalSize: 0x0
    296 ; OBJ-NEXT:   ParamsSize: 0x0
    297 ; OBJ-NEXT:   MaxStackSize: 0x0
    298 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + =
    299 ; OBJ-NEXT:   PrologSize: 0x4
    300 ; OBJ-NEXT:   SavedRegsSize: 0x0
    301 ; OBJ-NEXT:   Flags [ (0x4)
    302 ; OBJ-NEXT:     IsFunctionStart (0x4)
    303 ; OBJ-NEXT:   ]
    304 ; OBJ-NEXT: }
    305 ; OBJ-NEXT: FrameData {
    306 ; OBJ-NEXT:   RvaStart: 0x1
    307 ; OBJ-NEXT:   CodeSize: 0x3E
    308 ; OBJ-NEXT:   LocalSize: 0x0
    309 ; OBJ-NEXT:   ParamsSize: 0x0
    310 ; OBJ-NEXT:   MaxStackSize: 0x0
    311 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ =
    312 ; OBJ-NEXT:   PrologSize: 0x3
    313 ; OBJ-NEXT:   SavedRegsSize: 0x4
    314 ; OBJ-NEXT:   Flags [ (0x0)
    315 ; OBJ-NEXT:   ]
    316 ; OBJ-NEXT: }
    317 ; OBJ-NEXT: FrameData {
    318 ; OBJ-NEXT:   RvaStart: 0x2
    319 ; OBJ-NEXT:   CodeSize: 0x3D
    320 ; OBJ-NEXT:   LocalSize: 0x0
    321 ; OBJ-NEXT:   ParamsSize: 0x0
    322 ; OBJ-NEXT:   MaxStackSize: 0x0
    323 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ = $ebx $T0 8 - ^ =
    324 ; OBJ-NEXT:   PrologSize: 0x2
    325 ; OBJ-NEXT:   SavedRegsSize: 0x8
    326 ; OBJ-NEXT:   Flags [ (0x0)
    327 ; OBJ-NEXT:   ]
    328 ; OBJ-NEXT: }
    329 ; OBJ-NEXT: FrameData {
    330 ; OBJ-NEXT:   RvaStart: 0x3
    331 ; OBJ-NEXT:   CodeSize: 0x3C
    332 ; OBJ-NEXT:   LocalSize: 0x0
    333 ; OBJ-NEXT:   ParamsSize: 0x0
    334 ; OBJ-NEXT:   MaxStackSize: 0x0
    335 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ = $ebx $T0 8 - ^ = $edi $T0 12 - ^ =
    336 ; OBJ-NEXT:   PrologSize: 0x1
    337 ; OBJ-NEXT:   SavedRegsSize: 0xC
    338 ; OBJ-NEXT:   Flags [ (0x0)
    339 ; OBJ-NEXT:   ]
    340 ; OBJ-NEXT: }
    341 ; OBJ-NEXT: FrameData {
    342 ; OBJ-NEXT:   RvaStart: 0x4
    343 ; OBJ-NEXT:   CodeSize: 0x3B
    344 ; OBJ-NEXT:   LocalSize: 0x0
    345 ; OBJ-NEXT:   ParamsSize: 0x0
    346 ; OBJ-NEXT:   MaxStackSize: 0x0
    347 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ = $ebx $T0 8 - ^ = $edi $T0 12 - ^ = $esi $T0 16 - ^ =
    348 ; OBJ-NEXT:   PrologSize: 0x0
    349 ; OBJ-NEXT:   SavedRegsSize: 0x10
    350 ; OBJ-NEXT:   Flags [ (0x0)
    351 ; OBJ-NEXT:   ]
    352 ; OBJ-NEXT: }
    353 ; OBJ-NOT: FrameData
    354 
    355 ; Function Attrs: nounwind
    356 define i32 @spill() local_unnamed_addr #0 !dbg !61 {
    357 entry:
    358   %call = tail call i32 @getval() #3, !dbg !68
    359   tail call void @llvm.dbg.value(metadata i32 %call, metadata !63, metadata !DIExpression()), !dbg !69
    360   %call1 = tail call i32 @getval() #3, !dbg !70
    361   tail call void @llvm.dbg.value(metadata i32 %call1, metadata !64, metadata !DIExpression()), !dbg !71
    362   %call2 = tail call i32 @getval() #3, !dbg !72
    363   tail call void @llvm.dbg.value(metadata i32 %call2, metadata !65, metadata !DIExpression()), !dbg !73
    364   %call3 = tail call i32 @getval() #3, !dbg !74
    365   tail call void @llvm.dbg.value(metadata i32 %call3, metadata !66, metadata !DIExpression()), !dbg !75
    366   %call4 = tail call i32 @getval() #3, !dbg !76
    367   tail call void @llvm.dbg.value(metadata i32 %call4, metadata !67, metadata !DIExpression()), !dbg !77
    368   tail call void (i32, ...) @usevals(i32 %call, i32 %call1, i32 %call2, i32 %call3, i32 %call4) #3, !dbg !78
    369   tail call void (i32, ...) @usevals(i32 %call, i32 %call1, i32 %call2, i32 %call3, i32 %call4) #3, !dbg !79
    370   ret i32 %call, !dbg !80
    371 }
    372 
    373 ; ASM-LABEL: _spill:                                  # @spill
    374 ; ASM:         .cv_fpo_proc    _spill
    375 ; ASM:         pushl   %ebp
    376 ; ASM:         .cv_fpo_pushreg %ebp
    377 ; ASM:         pushl   %ebx
    378 ; ASM:         .cv_fpo_pushreg %ebx
    379 ; ASM:         pushl   %edi
    380 ; ASM:         .cv_fpo_pushreg %edi
    381 ; ASM:         pushl   %esi
    382 ; ASM:         .cv_fpo_pushreg %esi
    383 ; ASM:         subl    $8, %esp
    384 ; ASM:         .cv_fpo_stackalloc 8
    385 ; ASM:         .cv_fpo_endprologue
    386 ; ASM:         retl
    387 ; ASM:         .cv_fpo_endproc
    388 
    389 ; OBJ-LABEL: SubSectionType: FrameData (0xF5)
    390 ; OBJ-NEXT: SubSectionSize:
    391 ; OBJ-NEXT: LinkageName: _spill
    392 ; OBJ-NEXT: FrameData {
    393 ; OBJ-NEXT:   RvaStart: 0x0
    394 ; OBJ-NEXT:   CodeSize: 0x5A
    395 ; OBJ-NEXT:   LocalSize: 0x0
    396 ; OBJ-NEXT:   ParamsSize: 0x0
    397 ; OBJ-NEXT:   MaxStackSize: 0x0
    398 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + =
    399 ; OBJ-NEXT:   PrologSize: 0x7
    400 ; OBJ-NEXT:   SavedRegsSize: 0x0
    401 ; OBJ-NEXT:   Flags [ (0x4)
    402 ; OBJ-NEXT:     IsFunctionStart (0x4)
    403 ; OBJ-NEXT:   ]
    404 ; OBJ-NEXT: }
    405 ; OBJ-NEXT: FrameData {
    406 ; OBJ-NEXT:   RvaStart: 0x1
    407 ; OBJ-NEXT:   CodeSize: 0x59
    408 ; OBJ-NEXT:   LocalSize: 0x0
    409 ; OBJ-NEXT:   ParamsSize: 0x0
    410 ; OBJ-NEXT:   MaxStackSize: 0x0
    411 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ =
    412 ; OBJ-NEXT:   PrologSize: 0x6
    413 ; OBJ-NEXT:   SavedRegsSize: 0x4
    414 ; OBJ-NEXT:   Flags [ (0x0)
    415 ; OBJ-NEXT:   ]
    416 ; OBJ-NEXT: }
    417 ; OBJ-NEXT: FrameData {
    418 ; OBJ-NEXT:   RvaStart: 0x2
    419 ; OBJ-NEXT:   CodeSize: 0x58
    420 ; OBJ-NEXT:   LocalSize: 0x0
    421 ; OBJ-NEXT:   ParamsSize: 0x0
    422 ; OBJ-NEXT:   MaxStackSize: 0x0
    423 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ = $ebx $T0 8 - ^ =
    424 ; OBJ-NEXT:   PrologSize: 0x5
    425 ; OBJ-NEXT:   SavedRegsSize: 0x8
    426 ; OBJ-NEXT:   Flags [ (0x0)
    427 ; OBJ-NEXT:   ]
    428 ; OBJ-NEXT: }
    429 ; OBJ-NEXT: FrameData {
    430 ; OBJ-NEXT:   RvaStart: 0x3
    431 ; OBJ-NEXT:   CodeSize: 0x57
    432 ; OBJ-NEXT:   LocalSize: 0x0
    433 ; OBJ-NEXT:   ParamsSize: 0x0
    434 ; OBJ-NEXT:   MaxStackSize: 0x0
    435 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ = $ebx $T0 8 - ^ = $edi $T0 12 - ^ =
    436 ; OBJ-NEXT:   PrologSize: 0x4
    437 ; OBJ-NEXT:   SavedRegsSize: 0xC
    438 ; OBJ-NEXT:   Flags [ (0x0)
    439 ; OBJ-NEXT:   ]
    440 ; OBJ-NEXT: }
    441 ; OBJ-NEXT: FrameData {
    442 ; OBJ-NEXT:   RvaStart: 0x4
    443 ; OBJ-NEXT:   CodeSize: 0x56
    444 ; OBJ-NEXT:   LocalSize: 0x0
    445 ; OBJ-NEXT:   ParamsSize: 0x0
    446 ; OBJ-NEXT:   MaxStackSize: 0x0
    447 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ = $ebx $T0 8 - ^ = $edi $T0 12 - ^ = $esi $T0 16 - ^ =
    448 ; OBJ-NEXT:   PrologSize: 0x3
    449 ; OBJ-NEXT:   SavedRegsSize: 0x10
    450 ; OBJ-NEXT:   Flags [ (0x0)
    451 ; OBJ-NEXT:   ]
    452 ; OBJ-NEXT: }
    453 ; OBJ-NEXT: FrameData {
    454 ; OBJ-NEXT:   RvaStart: 0x7
    455 ; OBJ-NEXT:   CodeSize: 0x53
    456 ; OBJ-NEXT:   LocalSize: 0x8
    457 ; OBJ-NEXT:   ParamsSize: 0x0
    458 ; OBJ-NEXT:   MaxStackSize: 0x0
    459 ; OBJ-NEXT:   FrameFunc: $T0 .raSearch = $eip $T0 ^ = $esp $T0 4 + = $ebp $T0 4 - ^ = $ebx $T0 8 - ^ = $edi $T0 12 - ^ = $esi $T0 16 - ^ =
    460 ; OBJ-NEXT:   PrologSize: 0x0
    461 ; OBJ-NEXT:   SavedRegsSize: 0x10
    462 ; OBJ-NEXT:   Flags [ (0x0)
    463 ; OBJ-NEXT:   ]
    464 ; OBJ-NEXT: }
    465 ; OBJ-NOT: FrameData
    466 
    467 ; Function Attrs: nounwind readnone speculatable
    468 declare void @llvm.dbg.value(metadata, metadata, metadata) #2
    469 
    470 attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
    471 attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
    472 attributes #2 = { nounwind readnone speculatable }
    473 attributes #3 = { nounwind }
    474 
    475 !llvm.dbg.cu = !{!0}
    476 !llvm.module.flags = !{!3, !4, !5, !6}
    477 !llvm.ident = !{!7}
    478 
    479 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
    480 !1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild", checksumkind: CSK_MD5, checksum: "0b1c85f8a0bfb41380df1fcaeadde306")
    481 !2 = !{}
    482 !3 = !{i32 1, !"NumRegisterParameters", i32 0}
    483 !4 = !{i32 2, !"CodeView", i32 1}
    484 !5 = !{i32 2, !"Debug Info Version", i32 3}
    485 !6 = !{i32 1, !"wchar_size", i32 2}
    486 !7 = !{!"clang version 6.0.0 "}
    487 !8 = distinct !DISubprogram(name: "csr1", scope: !1, file: !1, line: 3, type: !9, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, retainedNodes: !12)
    488 !9 = !DISubroutineType(types: !10)
    489 !10 = !{!11}
    490 !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
    491 !12 = !{!13}
    492 !13 = !DILocalVariable(name: "a", scope: !8, file: !1, line: 4, type: !11)
    493 !14 = !DILocation(line: 4, column: 11, scope: !8)
    494 !15 = !DILocation(line: 4, column: 7, scope: !8)
    495 !16 = !DILocation(line: 5, column: 3, scope: !8)
    496 !17 = !DILocation(line: 6, column: 3, scope: !8)
    497 !18 = !DILocation(line: 7, column: 3, scope: !8)
    498 !19 = distinct !DISubprogram(name: "csr2", scope: !1, file: !1, line: 9, type: !9, isLocal: false, isDefinition: true, scopeLine: 9, isOptimized: true, unit: !0, retainedNodes: !20)
    499 !20 = !{!21, !22}
    500 !21 = !DILocalVariable(name: "a", scope: !19, file: !1, line: 10, type: !11)
    501 !22 = !DILocalVariable(name: "b", scope: !19, file: !1, line: 11, type: !11)
    502 !23 = !DILocation(line: 10, column: 11, scope: !19)
    503 !24 = !DILocation(line: 10, column: 7, scope: !19)
    504 !25 = !DILocation(line: 11, column: 11, scope: !19)
    505 !26 = !DILocation(line: 11, column: 7, scope: !19)
    506 !27 = !DILocation(line: 12, column: 3, scope: !19)
    507 !28 = !DILocation(line: 13, column: 3, scope: !19)
    508 !29 = !DILocation(line: 14, column: 3, scope: !19)
    509 !30 = distinct !DISubprogram(name: "csr3", scope: !1, file: !1, line: 16, type: !9, isLocal: false, isDefinition: true, scopeLine: 16, isOptimized: true, unit: !0, retainedNodes: !31)
    510 !31 = !{!32, !33, !34}
    511 !32 = !DILocalVariable(name: "a", scope: !30, file: !1, line: 17, type: !11)
    512 !33 = !DILocalVariable(name: "b", scope: !30, file: !1, line: 18, type: !11)
    513 !34 = !DILocalVariable(name: "c", scope: !30, file: !1, line: 19, type: !11)
    514 !35 = !DILocation(line: 17, column: 11, scope: !30)
    515 !36 = !DILocation(line: 17, column: 7, scope: !30)
    516 !37 = !DILocation(line: 18, column: 11, scope: !30)
    517 !38 = !DILocation(line: 18, column: 7, scope: !30)
    518 !39 = !DILocation(line: 19, column: 11, scope: !30)
    519 !40 = !DILocation(line: 19, column: 7, scope: !30)
    520 !41 = !DILocation(line: 20, column: 3, scope: !30)
    521 !42 = !DILocation(line: 21, column: 3, scope: !30)
    522 !43 = !DILocation(line: 22, column: 3, scope: !30)
    523 !44 = distinct !DISubprogram(name: "csr4", scope: !1, file: !1, line: 24, type: !9, isLocal: false, isDefinition: true, scopeLine: 24, isOptimized: true, unit: !0, retainedNodes: !45)
    524 !45 = !{!46, !47, !48, !49}
    525 !46 = !DILocalVariable(name: "a", scope: !44, file: !1, line: 25, type: !11)
    526 !47 = !DILocalVariable(name: "b", scope: !44, file: !1, line: 26, type: !11)
    527 !48 = !DILocalVariable(name: "c", scope: !44, file: !1, line: 27, type: !11)
    528 !49 = !DILocalVariable(name: "d", scope: !44, file: !1, line: 28, type: !11)
    529 !50 = !DILocation(line: 25, column: 11, scope: !44)
    530 !51 = !DILocation(line: 25, column: 7, scope: !44)
    531 !52 = !DILocation(line: 26, column: 11, scope: !44)
    532 !53 = !DILocation(line: 26, column: 7, scope: !44)
    533 !54 = !DILocation(line: 27, column: 11, scope: !44)
    534 !55 = !DILocation(line: 27, column: 7, scope: !44)
    535 !56 = !DILocation(line: 28, column: 11, scope: !44)
    536 !57 = !DILocation(line: 28, column: 7, scope: !44)
    537 !58 = !DILocation(line: 29, column: 3, scope: !44)
    538 !59 = !DILocation(line: 30, column: 3, scope: !44)
    539 !60 = !DILocation(line: 31, column: 3, scope: !44)
    540 !61 = distinct !DISubprogram(name: "spill", scope: !1, file: !1, line: 33, type: !9, isLocal: false, isDefinition: true, scopeLine: 33, isOptimized: true, unit: !0, retainedNodes: !62)
    541 !62 = !{!63, !64, !65, !66, !67}
    542 !63 = !DILocalVariable(name: "a", scope: !61, file: !1, line: 34, type: !11)
    543 !64 = !DILocalVariable(name: "b", scope: !61, file: !1, line: 35, type: !11)
    544 !65 = !DILocalVariable(name: "c", scope: !61, file: !1, line: 36, type: !11)
    545 !66 = !DILocalVariable(name: "d", scope: !61, file: !1, line: 37, type: !11)
    546 !67 = !DILocalVariable(name: "e", scope: !61, file: !1, line: 38, type: !11)
    547 !68 = !DILocation(line: 34, column: 11, scope: !61)
    548 !69 = !DILocation(line: 34, column: 7, scope: !61)
    549 !70 = !DILocation(line: 35, column: 11, scope: !61)
    550 !71 = !DILocation(line: 35, column: 7, scope: !61)
    551 !72 = !DILocation(line: 36, column: 11, scope: !61)
    552 !73 = !DILocation(line: 36, column: 7, scope: !61)
    553 !74 = !DILocation(line: 37, column: 11, scope: !61)
    554 !75 = !DILocation(line: 37, column: 7, scope: !61)
    555 !76 = !DILocation(line: 38, column: 11, scope: !61)
    556 !77 = !DILocation(line: 38, column: 7, scope: !61)
    557 !78 = !DILocation(line: 39, column: 3, scope: !61)
    558 !79 = !DILocation(line: 40, column: 3, scope: !61)
    559 !80 = !DILocation(line: 41, column: 3, scope: !61)
    560