Justin Lebar | c75d566 | 2016-02-19 00:18:46 +0000 | [diff] [blame] | 1 | # RUN: llc -run-pass=livedebugvalues -march=x86-64 -o /dev/null %s 2>&1 | FileCheck %s |
Vikram TV | 859ad29 | 2015-12-16 11:09:48 +0000 | [diff] [blame] | 2 | |
| 3 | # Test the extension of debug ranges from 3 predecessors. |
| 4 | # Generated from the source file LiveDebugValues-3preds.c: |
| 5 | # #include <stdio.h> |
| 6 | # int add(int x, int y, int z, int a) { |
| 7 | # int i; |
| 8 | # for (i = 0; i < x * y; i++) { |
| 9 | # if (i < x) { |
| 10 | # a = a * x; |
| 11 | # break; |
| 12 | # } |
| 13 | # if (i < y) { |
| 14 | # a = a * y; |
| 15 | # break; |
| 16 | # } |
| 17 | # if (i < z) { |
| 18 | # a = a * z; |
| 19 | # break; |
| 20 | # } |
| 21 | # } |
| 22 | # return a; |
| 23 | # } |
| 24 | # with clang -g -O1 -c -emit-llvm LiveDebugValues-3preds.c -S -o live-debug-values-3preds.ll |
| 25 | # then llc -stop-after stackmap-liveness live-debug-values-3preds.ll -o /dev/null > live-debug-values-3preds.mir |
| 26 | |
| 27 | # DBG_VALUE for variables "x", "y" and "z" are extended into BB#9 from its |
| 28 | # predecessors BB#0, BB#2 and BB#8. |
| 29 | # CHECK: bb.9.for.end: |
Adrian Prantl | 75819ae | 2016-04-15 15:57:41 +0000 | [diff] [blame] | 30 | # CHECK: DBG_VALUE debug-use %edx, debug-use _, !13, !16, debug-location !20 |
| 31 | # CHECK-NEXT: DBG_VALUE debug-use %esi, debug-use _, !12, !16, debug-location !18 |
| 32 | # CHECK-NEXT: DBG_VALUE debug-use %edi, debug-use _, !11, !16, debug-location !17 |
Vikram TV | 859ad29 | 2015-12-16 11:09:48 +0000 | [diff] [blame] | 33 | |
| 34 | |
| 35 | --- | |
| 36 | ; ModuleID = 'live-debug-values-3preds.ll' |
| 37 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 38 | target triple = "x86_64-unknown-linux-gnu" |
| 39 | |
| 40 | ; Function Attrs: norecurse nounwind readnone uwtable |
| 41 | define i32 @add(i32 %x, i32 %y, i32 %z, i32 %a) #0 !dbg !4 { |
| 42 | entry: |
| 43 | tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !9, metadata !17), !dbg !18 |
| 44 | tail call void @llvm.dbg.value(metadata i32 %y, i64 0, metadata !10, metadata !17), !dbg !19 |
| 45 | tail call void @llvm.dbg.value(metadata i32 %z, i64 0, metadata !11, metadata !17), !dbg !21 |
| 46 | tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !12, metadata !17), !dbg !23 |
| 47 | tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !13, metadata !17), !dbg !25 |
| 48 | %mul = mul nsw i32 %y, %x, !dbg !26 |
| 49 | %cmp.24 = icmp sgt i32 %mul, 0, !dbg !30 |
| 50 | br i1 %cmp.24, label %for.body.preheader, label %for.end, !dbg !31 |
| 51 | |
| 52 | for.body.preheader: ; preds = %entry |
| 53 | br label %for.body, !dbg !32 |
| 54 | |
| 55 | for.cond: ; preds = %if.end.6 |
| 56 | %cmp = icmp slt i32 %inc, %mul, !dbg !30 |
| 57 | br i1 %cmp, label %for.body, label %for.end, !dbg !31 |
| 58 | |
| 59 | for.body: ; preds = %for.cond, %for.body.preheader |
| 60 | %i.025 = phi i32 [ %inc, %for.cond ], [ 0, %for.body.preheader ] |
| 61 | %0 = icmp sgt i32 %x, 0 |
| 62 | br i1 %0, label %if.then, label %if.end, !dbg !35 |
| 63 | |
| 64 | if.then: ; preds = %for.body |
| 65 | %mul2 = mul nsw i32 %a, %x, !dbg !36 |
| 66 | tail call void @llvm.dbg.value(metadata i32 %mul2, i64 0, metadata !12, metadata !17), !dbg !23 |
| 67 | br label %for.end, !dbg !38 |
| 68 | |
| 69 | if.end: ; preds = %for.body |
| 70 | %1 = icmp sgt i32 %y, 0 |
| 71 | br i1 %1, label %if.then.4, label %if.end.6, !dbg !39 |
| 72 | |
| 73 | if.then.4: ; preds = %if.end |
| 74 | %mul5 = mul nsw i32 %a, %y, !dbg !40 |
| 75 | tail call void @llvm.dbg.value(metadata i32 %mul5, i64 0, metadata !12, metadata !17), !dbg !23 |
| 76 | br label %for.end, !dbg !43 |
| 77 | |
| 78 | if.end.6: ; preds = %if.end |
| 79 | %2 = icmp sgt i32 %z, 0 |
| 80 | %inc = add nuw nsw i32 %i.025, 1, !dbg !44 |
| 81 | tail call void @llvm.dbg.value(metadata i32 %inc, i64 0, metadata !13, metadata !17), !dbg !25 |
| 82 | br i1 %2, label %if.then.8, label %for.cond, !dbg !45 |
| 83 | |
| 84 | if.then.8: ; preds = %if.end.6 |
| 85 | %mul9 = mul nsw i32 %a, %z, !dbg !46 |
| 86 | tail call void @llvm.dbg.value(metadata i32 %mul9, i64 0, metadata !12, metadata !17), !dbg !23 |
| 87 | br label %for.end, !dbg !49 |
| 88 | |
| 89 | for.end: ; preds = %for.cond, %if.then.8, %if.then.4, %if.then, %entry |
| 90 | %a.addr.0 = phi i32 [ %mul2, %if.then ], [ %mul5, %if.then.4 ], [ %mul9, %if.then.8 ], [ %a, %entry ], [ %a, %for.cond ] |
| 91 | ret i32 %a.addr.0, !dbg !50 |
| 92 | } |
| 93 | |
| 94 | ; Function Attrs: nounwind readnone |
| 95 | declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1 |
| 96 | |
| 97 | attributes #0 = { norecurse nounwind readnone uwtable } |
| 98 | attributes #1 = { nounwind readnone } |
| 99 | |
| 100 | !llvm.dbg.cu = !{!0} |
| 101 | !llvm.module.flags = !{!14, !15} |
| 102 | !llvm.ident = !{!16} |
| 103 | |
Adrian Prantl | 75819ae | 2016-04-15 15:57:41 +0000 | [diff] [blame] | 104 | !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 253049) ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
Vikram TV | 859ad29 | 2015-12-16 11:09:48 +0000 | [diff] [blame] | 105 | !1 = !DIFile(filename: "LiveDebugValues-3preds.c", directory: "/home/vt/julia/test/tvvikram") |
| 106 | !2 = !{} |
Adrian Prantl | 75819ae | 2016-04-15 15:57:41 +0000 | [diff] [blame] | 107 | !4 = distinct !DISubprogram(name: "add", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !8) |
Vikram TV | 859ad29 | 2015-12-16 11:09:48 +0000 | [diff] [blame] | 108 | !5 = !DISubroutineType(types: !6) |
| 109 | !6 = !{!7, !7, !7, !7, !7} |
| 110 | !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| 111 | !8 = !{!9, !10, !11, !12, !13} |
| 112 | !9 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !1, line: 1, type: !7) |
| 113 | !10 = !DILocalVariable(name: "y", arg: 2, scope: !4, file: !1, line: 1, type: !7) |
| 114 | !11 = !DILocalVariable(name: "z", arg: 3, scope: !4, file: !1, line: 1, type: !7) |
| 115 | !12 = !DILocalVariable(name: "a", arg: 4, scope: !4, file: !1, line: 1, type: !7) |
| 116 | !13 = !DILocalVariable(name: "i", scope: !4, file: !1, line: 2, type: !7) |
| 117 | !14 = !{i32 2, !"Dwarf Version", i32 4} |
| 118 | !15 = !{i32 2, !"Debug Info Version", i32 3} |
| 119 | !16 = !{!"clang version 3.8.0 (trunk 253049) "} |
| 120 | !17 = !DIExpression() |
| 121 | !18 = !DILocation(line: 1, column: 13, scope: !4) |
| 122 | !19 = !DILocation(line: 1, column: 20, scope: !20) |
| 123 | !20 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 1) |
| 124 | !21 = !DILocation(line: 1, column: 27, scope: !22) |
| 125 | !22 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 2) |
| 126 | !23 = !DILocation(line: 1, column: 34, scope: !24) |
| 127 | !24 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 3) |
| 128 | !25 = !DILocation(line: 2, column: 7, scope: !20) |
| 129 | !26 = !DILocation(line: 3, column: 21, scope: !27) |
| 130 | !27 = !DILexicalBlockFile(scope: !28, file: !1, discriminator: 1) |
| 131 | !28 = distinct !DILexicalBlock(scope: !29, file: !1, line: 3, column: 3) |
| 132 | !29 = distinct !DILexicalBlock(scope: !4, file: !1, line: 3, column: 3) |
| 133 | !30 = !DILocation(line: 3, column: 17, scope: !27) |
| 134 | !31 = !DILocation(line: 3, column: 3, scope: !27) |
| 135 | !32 = !DILocation(line: 4, column: 11, scope: !33) |
| 136 | !33 = distinct !DILexicalBlock(scope: !34, file: !1, line: 4, column: 9) |
| 137 | !34 = distinct !DILexicalBlock(scope: !28, file: !1, line: 3, column: 31) |
| 138 | !35 = !DILocation(line: 4, column: 9, scope: !34) |
| 139 | !36 = !DILocation(line: 5, column: 13, scope: !37) |
| 140 | !37 = distinct !DILexicalBlock(scope: !33, file: !1, line: 4, column: 16) |
| 141 | !38 = !DILocation(line: 6, column: 7, scope: !37) |
| 142 | !39 = !DILocation(line: 8, column: 9, scope: !34) |
| 143 | !40 = !DILocation(line: 9, column: 13, scope: !41) |
| 144 | !41 = distinct !DILexicalBlock(scope: !42, file: !1, line: 8, column: 16) |
| 145 | !42 = distinct !DILexicalBlock(scope: !34, file: !1, line: 8, column: 9) |
| 146 | !43 = !DILocation(line: 10, column: 7, scope: !41) |
| 147 | !44 = !DILocation(line: 3, column: 27, scope: !28) |
| 148 | !45 = !DILocation(line: 12, column: 9, scope: !34) |
| 149 | !46 = !DILocation(line: 13, column: 13, scope: !47) |
| 150 | !47 = distinct !DILexicalBlock(scope: !48, file: !1, line: 12, column: 16) |
| 151 | !48 = distinct !DILexicalBlock(scope: !34, file: !1, line: 12, column: 9) |
| 152 | !49 = !DILocation(line: 14, column: 7, scope: !47) |
| 153 | !50 = !DILocation(line: 17, column: 3, scope: !4) |
| 154 | |
| 155 | ... |
| 156 | --- |
| 157 | name: add |
| 158 | alignment: 4 |
| 159 | exposesReturnsTwice: false |
| 160 | hasInlineAsm: false |
Derek Schuff | ad154c8 | 2016-03-28 17:05:30 +0000 | [diff] [blame] | 161 | allVRegsAllocated: true |
Vikram TV | 859ad29 | 2015-12-16 11:09:48 +0000 | [diff] [blame] | 162 | isSSA: false |
| 163 | tracksRegLiveness: true |
| 164 | tracksSubRegLiveness: false |
| 165 | liveins: |
| 166 | - { reg: '%edi' } |
| 167 | - { reg: '%esi' } |
| 168 | - { reg: '%edx' } |
| 169 | - { reg: '%ecx' } |
| 170 | frameInfo: |
| 171 | isFrameAddressTaken: false |
| 172 | isReturnAddressTaken: false |
| 173 | hasStackMap: false |
| 174 | hasPatchPoint: false |
| 175 | stackSize: 0 |
| 176 | offsetAdjustment: 0 |
| 177 | maxAlignment: 0 |
| 178 | adjustsStack: false |
| 179 | hasCalls: false |
| 180 | maxCallFrameSize: 0 |
| 181 | hasOpaqueSPAdjustment: false |
| 182 | hasVAStart: false |
| 183 | hasMustTailInVarArgFunc: false |
| 184 | body: | |
| 185 | bb.0.entry: |
| 186 | successors: %bb.1.for.body.preheader(20), %bb.9.for.end(12) |
| 187 | liveins: %ecx, %edi, %edx, %esi |
| 188 | |
| 189 | DBG_VALUE debug-use %edi, debug-use _, !9, !17, debug-location !18 |
| 190 | DBG_VALUE debug-use %esi, debug-use _, !10, !17, debug-location !19 |
| 191 | DBG_VALUE debug-use %edx, debug-use _, !11, !17, debug-location !21 |
| 192 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 193 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 194 | %r8d = MOV32rr %esi, debug-location !26 |
| 195 | %r8d = IMUL32rr killed %r8d, %edi, implicit-def dead %eflags, debug-location !26 |
| 196 | TEST32rr %r8d, %r8d, implicit-def %eflags, debug-location !31 |
| 197 | JLE_1 %bb.9.for.end, implicit %eflags |
| 198 | |
| 199 | bb.1.for.body.preheader: |
| 200 | successors: %bb.3.for.body(0) |
| 201 | liveins: %ecx, %edi, %edx, %esi, %r8d |
| 202 | |
| 203 | DBG_VALUE debug-use %edi, debug-use _, !9, !17, debug-location !18 |
| 204 | DBG_VALUE debug-use %esi, debug-use _, !10, !17, debug-location !19 |
| 205 | DBG_VALUE debug-use %edx, debug-use _, !11, !17, debug-location !21 |
| 206 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 207 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 208 | %eax = XOR32rr undef %eax, undef %eax, implicit-def dead %eflags |
| 209 | |
| 210 | bb.3.for.body (align 4): |
| 211 | successors: %bb.4.if.then(4), %bb.5.if.end(124) |
| 212 | liveins: %eax, %ecx, %edi, %edx, %esi, %r8d |
| 213 | |
| 214 | DBG_VALUE debug-use %edi, debug-use _, !9, !17, debug-location !18 |
| 215 | DBG_VALUE debug-use %esi, debug-use _, !10, !17, debug-location !19 |
| 216 | DBG_VALUE debug-use %edx, debug-use _, !11, !17, debug-location !21 |
| 217 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 218 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 219 | TEST32rr %edi, %edi, implicit-def %eflags, debug-location !35 |
| 220 | JG_1 %bb.4.if.then, implicit %eflags |
| 221 | |
| 222 | bb.5.if.end: |
| 223 | successors: %bb.6.if.then.4(4), %bb.7.if.end.6(124) |
| 224 | liveins: %eax, %ecx, %edi, %edx, %esi, %r8d |
| 225 | |
| 226 | DBG_VALUE debug-use %edi, debug-use _, !9, !17, debug-location !18 |
| 227 | DBG_VALUE debug-use %esi, debug-use _, !10, !17, debug-location !19 |
| 228 | DBG_VALUE debug-use %edx, debug-use _, !11, !17, debug-location !21 |
| 229 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 230 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 231 | TEST32rr %esi, %esi, implicit-def %eflags, debug-location !39 |
| 232 | JG_1 %bb.6.if.then.4, implicit %eflags |
| 233 | |
| 234 | bb.7.if.end.6: |
| 235 | successors: %bb.8.if.then.8(4), %bb.2.for.cond(124) |
| 236 | liveins: %eax, %ecx, %edi, %edx, %esi, %r8d |
| 237 | |
| 238 | DBG_VALUE debug-use %edi, debug-use _, !9, !17, debug-location !18 |
| 239 | DBG_VALUE debug-use %esi, debug-use _, !10, !17, debug-location !19 |
| 240 | DBG_VALUE debug-use %edx, debug-use _, !11, !17, debug-location !21 |
| 241 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 242 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 243 | TEST32rr %edx, %edx, implicit-def %eflags, debug-location !45 |
| 244 | JG_1 %bb.8.if.then.8, implicit %eflags |
| 245 | |
| 246 | bb.2.for.cond: |
| 247 | successors: %bb.3.for.body(124), %bb.9.for.end(4) |
| 248 | liveins: %eax, %ecx, %edi, %edx, %esi, %r8d |
| 249 | |
| 250 | DBG_VALUE debug-use %edi, debug-use _, !9, !17, debug-location !18 |
| 251 | DBG_VALUE debug-use %esi, debug-use _, !10, !17, debug-location !19 |
| 252 | DBG_VALUE debug-use %edx, debug-use _, !11, !17, debug-location !21 |
| 253 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 254 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 255 | %eax = INC32r killed %eax, implicit-def dead %eflags, debug-location !44 |
| 256 | DBG_VALUE debug-use %eax, debug-use _, !13, !17, debug-location !25 |
| 257 | CMP32rr %eax, %r8d, implicit-def %eflags, debug-location !31 |
| 258 | JL_1 %bb.3.for.body, implicit %eflags |
| 259 | JMP_1 %bb.9.for.end |
| 260 | |
| 261 | bb.4.if.then: |
| 262 | liveins: %ecx, %edi |
| 263 | |
| 264 | DBG_VALUE debug-use %edi, debug-use _, !9, !17, debug-location !18 |
| 265 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 266 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 267 | %ecx = IMUL32rr killed %ecx, killed %edi, implicit-def dead %eflags, debug-location !36 |
| 268 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 269 | %eax = MOV32rr killed %ecx, debug-location !50 |
| 270 | RETQ %eax, debug-location !50 |
| 271 | |
| 272 | bb.6.if.then.4: |
| 273 | liveins: %ecx, %esi |
| 274 | |
| 275 | DBG_VALUE debug-use %esi, debug-use _, !10, !17, debug-location !19 |
| 276 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 277 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 278 | %ecx = IMUL32rr killed %ecx, killed %esi, implicit-def dead %eflags, debug-location !40 |
| 279 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 280 | %eax = MOV32rr killed %ecx, debug-location !50 |
| 281 | RETQ %eax, debug-location !50 |
| 282 | |
| 283 | bb.8.if.then.8: |
| 284 | successors: %bb.9.for.end(0) |
| 285 | liveins: %ecx, %edx |
| 286 | |
| 287 | DBG_VALUE debug-use %edx, debug-use _, !11, !17, debug-location !21 |
| 288 | DBG_VALUE debug-use %ecx, debug-use _, !12, !17, debug-location !23 |
| 289 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 290 | %ecx = IMUL32rr killed %ecx, killed %edx, implicit-def dead %eflags, debug-location !46 |
| 291 | |
| 292 | bb.9.for.end: |
| 293 | liveins: %ecx |
| 294 | |
| 295 | DBG_VALUE 0, 0, !13, !17, debug-location !25 |
| 296 | %eax = MOV32rr killed %ecx, debug-location !50 |
| 297 | RETQ %eax, debug-location !50 |
| 298 | |
| 299 | ... |