| ; RUN: llc -start-after=codegenprepare -stop-before finalize-isel -o - %s \ |
| ; RUN: -experimental-debug-variable-locations=false \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK,DBGVALUE |
| ; RUN: llc -start-after=codegenprepare -stop-before finalize-isel -o - %s \ |
| ; RUN: -experimental-debug-variable-locations=true \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK,INSTRREF |
| |
| ; This test case was generated from the following phi-split.c program, |
| ; using: clang phi-split.c -g -O1 -S -o - --target=i386 -emit-llvm |
| ; -------------------------------------- |
| ; long long end = 10; |
| ; |
| ; int main() { |
| ; long long x = 9; |
| ; long long y = 13; |
| ; for (long long u = 0; u < end; ++u) { |
| ; x += y; |
| ; y = y * 3; |
| ; } |
| ; |
| ; volatile long long arr[80]; |
| ; for (long long q = 0; q < 64; ++q) { |
| ; arr[q] = q + 3; |
| ; } |
| ; |
| ; return x; |
| ; } |
| ; -------------------------------------- |
| ; |
| |
| ; ModuleID = 'phi-split.c' |
| source_filename = "phi-split.c" |
| target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" |
| target triple = "i386" |
| |
| @end = dso_local local_unnamed_addr global i64 10, align 8, !dbg !0 |
| |
| ; Function Attrs: nounwind |
| define dso_local i32 @main() local_unnamed_addr #0 !dbg !12 { |
| ; CHECK-LABEL: name: main |
| entry: |
| %arr = alloca [80 x i64], align 8 |
| call void @llvm.dbg.value(metadata i64 9, metadata !17, metadata !DIExpression()), !dbg !28 |
| call void @llvm.dbg.value(metadata i64 13, metadata !18, metadata !DIExpression()), !dbg !29 |
| call void @llvm.dbg.value(metadata i64 0, metadata !19, metadata !DIExpression()), !dbg !30 |
| %0 = load i64, i64* @end, align 8, !dbg !31 |
| %cmp20 = icmp sgt i64 %0, 0, !dbg !37 |
| br i1 %cmp20, label %for.body.lr.ph, label %for.cond.cleanup, !dbg !38 |
| |
| for.body.lr.ph: ; preds = %entry |
| %1 = load i64, i64* @end, align 8 |
| br label %for.body, !dbg !38 |
| |
| for.cond.cleanup.loopexit: ; preds = %for.body |
| %extract.t = trunc i64 %add to i32, !dbg !38 |
| br label %for.cond.cleanup, !dbg !39 |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| %x.0.lcssa.off0 = phi i32 [ 9, %entry ], [ %extract.t, %for.cond.cleanup.loopexit ] |
| call void @llvm.dbg.value(metadata i64 undef, metadata !17, metadata !DIExpression()), !dbg !28 |
| %2 = bitcast [80 x i64]* %arr to i8*, !dbg !39 |
| call void @llvm.dbg.value(metadata i64 0, metadata !26, metadata !DIExpression()), !dbg !41 |
| br label %for.body4, !dbg !42 |
| |
| for.body: ; preds = %for.body.lr.ph, %for.body |
| ; CHECK-LABEL: bb.{{.*}}.for.body: |
| ; CHECK: [[REG2:%[0-9]+]]:gr32 = PHI |
| ; INSTRREF-SAME: debug-instr-number 5 |
| ; CHECK-NEXT: [[REG3:%[0-9]+]]:gr32 = PHI |
| ; INSTRREF-SAME: debug-instr-number 6 |
| ; CHECK-NEXT: [[REG4:%[0-9]+]]:gr32 = PHI |
| ; INSTRREF-SAME: debug-instr-number 7 |
| ; CHECK-NEXT: [[REG5:%[0-9]+]]:gr32_nosp = PHI |
| ; INSTRREF-SAME: debug-instr-number 8 |
| ; CHECK-NEXT: [[REG6:%[0-9]+]]:gr32 = PHI |
| ; INSTRREF-SAME: debug-instr-number 9 |
| ; CHECK-NEXT: [[REG7:%[0-9]+]]:gr32 = PHI |
| ; INSTRREF-SAME: debug-instr-number 10 |
| ; INSTRREF-NEXT: DBG_INSTR_REF 5, 0, !19, !DIExpression(DW_OP_LLVM_fragment, 0, 32) |
| ; INSTRREF-NEXT: DBG_INSTR_REF 6, 0, !19, !DIExpression(DW_OP_LLVM_fragment, 32, 32) |
| ; INSTRREF-NEXT: DBG_INSTR_REF 7, 0, !18, !DIExpression(DW_OP_LLVM_fragment, 0, 32) |
| ; INSTRREF-NEXT: DBG_INSTR_REF 8, 0, !18, !DIExpression(DW_OP_LLVM_fragment, 32, 32) |
| ; INSTRREF-NEXT: DBG_INSTR_REF 9, 0, !17, !DIExpression(DW_OP_LLVM_fragment, 0, 32) |
| ; INSTRREF-NEXT: DBG_INSTR_REF 10, 0, !17, !DIExpression(DW_OP_LLVM_fragment, 32, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG2]], $noreg, !19, !DIExpression(DW_OP_LLVM_fragment, 0, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG3]], $noreg, !19, !DIExpression(DW_OP_LLVM_fragment, 32, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG4]], $noreg, !18, !DIExpression(DW_OP_LLVM_fragment, 0, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG5]], $noreg, !18, !DIExpression(DW_OP_LLVM_fragment, 32, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG6]], $noreg, !17, !DIExpression(DW_OP_LLVM_fragment, 0, 32) |
| ; DBGVALUE-NEXT: DBG_VALUE [[REG7]], $noreg, !17, !DIExpression(DW_OP_LLVM_fragment, 32, 32) |
| %u.023 = phi i64 [ 0, %for.body.lr.ph ], [ %inc, %for.body ] |
| %y.022 = phi i64 [ 13, %for.body.lr.ph ], [ %mul, %for.body ] |
| %x.021 = phi i64 [ 9, %for.body.lr.ph ], [ %add, %for.body ] |
| call void @llvm.dbg.value(metadata i64 %u.023, metadata !19, metadata !DIExpression()), !dbg !30 |
| call void @llvm.dbg.value(metadata i64 %y.022, metadata !18, metadata !DIExpression()), !dbg !29 |
| call void @llvm.dbg.value(metadata i64 %x.021, metadata !17, metadata !DIExpression()), !dbg !28 |
| %add = add nuw nsw i64 %y.022, %x.021, !dbg !43 |
| %mul = mul nsw i64 %y.022, 3, !dbg !45 |
| %inc = add nuw nsw i64 %u.023, 1, !dbg !46 |
| call void @llvm.dbg.value(metadata i64 %inc, metadata !19, metadata !DIExpression()), !dbg !30 |
| call void @llvm.dbg.value(metadata i64 %mul, metadata !18, metadata !DIExpression()), !dbg !29 |
| call void @llvm.dbg.value(metadata i64 %add, metadata !17, metadata !DIExpression()), !dbg !28 |
| %cmp = icmp slt i64 %inc, %1, !dbg !37 |
| br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit, !dbg !38, !llvm.loop !47 |
| |
| for.cond.cleanup3: ; preds = %for.body4 |
| ret i32 %x.0.lcssa.off0, !dbg !50 |
| |
| for.body4: ; preds = %for.cond.cleanup, %for.body4 |
| %q.019 = phi i64 [ 0, %for.cond.cleanup ], [ %inc7, %for.body4 ] |
| call void @llvm.dbg.value(metadata i64 %q.019, metadata !26, metadata !DIExpression()), !dbg !41 |
| %add5 = add nuw nsw i64 %q.019, 3, !dbg !51 |
| %idxprom = trunc i64 %q.019 to i32, !dbg !54 |
| %arrayidx = getelementptr inbounds [80 x i64], [80 x i64]* %arr, i32 0, i32 %idxprom, !dbg !54 |
| store volatile i64 %add5, i64* %arrayidx, align 8, !dbg !55 |
| %inc7 = add nuw nsw i64 %q.019, 1, !dbg !56 |
| call void @llvm.dbg.value(metadata i64 %inc7, metadata !26, metadata !DIExpression()), !dbg !41 |
| %cmp2 = icmp ult i64 %inc7, 64, !dbg !57 |
| br i1 %cmp2, label %for.body4, label %for.cond.cleanup3, !dbg !42, !llvm.loop !58 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind } |
| attributes #1 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!7, !8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "end", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0 (x)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) |
| !3 = !DIFile(filename: "phi-split.c", directory: "") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed) |
| !7 = !{i32 1, !"NumRegisterParameters", i32 0} |
| !8 = !{i32 2, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"wchar_size", i32 4} |
| !11 = !{!"clang version 7.0.0 (x)"} |
| !12 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 3, type: !13, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !2, retainedNodes: !16) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!15} |
| !15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !16 = !{!17, !18, !19, !21, !26} |
| !17 = !DILocalVariable(name: "x", scope: !12, file: !3, line: 4, type: !6) |
| !18 = !DILocalVariable(name: "y", scope: !12, file: !3, line: 5, type: !6) |
| !19 = !DILocalVariable(name: "u", scope: !20, file: !3, line: 6, type: !6) |
| !20 = distinct !DILexicalBlock(scope: !12, file: !3, line: 6, column: 3) |
| !21 = !DILocalVariable(name: "arr", scope: !12, file: !3, line: 11, type: !22) |
| !22 = !DICompositeType(tag: DW_TAG_array_type, baseType: !23, size: 5120, elements: !24) |
| !23 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !6) |
| !24 = !{!25} |
| !25 = !DISubrange(count: 80) |
| !26 = !DILocalVariable(name: "q", scope: !27, file: !3, line: 12, type: !6) |
| !27 = distinct !DILexicalBlock(scope: !12, file: !3, line: 12, column: 3) |
| !28 = !DILocation(line: 4, column: 13, scope: !12) |
| !29 = !DILocation(line: 5, column: 13, scope: !12) |
| !30 = !DILocation(line: 6, column: 18, scope: !20) |
| !31 = !DILocation(line: 6, column: 29, scope: !32) |
| !32 = distinct !DILexicalBlock(scope: !20, file: !3, line: 6, column: 3) |
| !37 = !DILocation(line: 6, column: 27, scope: !32) |
| !38 = !DILocation(line: 6, column: 3, scope: !20) |
| !39 = !DILocation(line: 11, column: 3, scope: !12) |
| !40 = !DILocation(line: 11, column: 22, scope: !12) |
| !41 = !DILocation(line: 12, column: 18, scope: !27) |
| !42 = !DILocation(line: 12, column: 3, scope: !27) |
| !43 = !DILocation(line: 7, column: 7, scope: !44) |
| !44 = distinct !DILexicalBlock(scope: !32, file: !3, line: 6, column: 39) |
| !45 = !DILocation(line: 8, column: 11, scope: !44) |
| !46 = !DILocation(line: 6, column: 34, scope: !32) |
| !47 = distinct !{!47, !38, !48} |
| !48 = !DILocation(line: 9, column: 3, scope: !20) |
| !50 = !DILocation(line: 16, column: 3, scope: !12) |
| !51 = !DILocation(line: 13, column: 16, scope: !52) |
| !52 = distinct !DILexicalBlock(scope: !53, file: !3, line: 12, column: 38) |
| !53 = distinct !DILexicalBlock(scope: !27, file: !3, line: 12, column: 3) |
| !54 = !DILocation(line: 13, column: 5, scope: !52) |
| !55 = !DILocation(line: 13, column: 12, scope: !52) |
| !56 = !DILocation(line: 12, column: 33, scope: !53) |
| !57 = !DILocation(line: 12, column: 27, scope: !53) |
| !58 = distinct !{!58, !42, !59} |
| !59 = !DILocation(line: 14, column: 3, scope: !27) |