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1# RUN: llc -debug-entry-values -run-pass=livedebugvalues -mtriple=x86_64 -o - %s| FileCheck %s2# RUN: llc -force-instr-ref-livedebugvalues=1 -debug-entry-values -run-pass=livedebugvalues -mtriple=x86_64 -o - %s| FileCheck %s3## Test case:4## int global;5## int foo(int p, int q, int r) {6## global = p + 1;7## asm __volatile("" : : : "edi", "esi", "edx");8## return 123;9## }10##11## Verify that DW_OP_LLVM_entry_values are generated for parameters with multiple12## DBG_VALUEs at entry block.13# CHECK: DBG_VALUE $edi, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}}14# CHECK: INLINEASM15# CHECK-DAG: DBG_VALUE $esi, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}}16# CHECK-DAG: DBG_VALUE $edx, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}}17# CHECK $eax = MOV32ri 12318 19--- |20 ; ModuleID = 'multiple-param-dbg-value-entry.ll'21 source_filename = "multiple-param-dbg-value-entry.c"22 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"23 24 @global = common dso_local local_unnamed_addr global i32 0, align 4, !dbg !025 26 define dso_local i32 @foo(i32 %p, i32 %q, i32 %r) local_unnamed_addr !dbg !11 {27 entry:28 call void @llvm.dbg.value(metadata i32 %p, metadata !15, metadata !DIExpression()), !dbg !1829 call void @llvm.dbg.value(metadata i32 %q, metadata !16, metadata !DIExpression()), !dbg !1830 call void @llvm.dbg.value(metadata i32 %r, metadata !17, metadata !DIExpression()), !dbg !1831 %add = add nsw i32 %p, 1, !dbg !1832 store i32 %add, ptr @global, align 4, !dbg !1833 tail call void asm sideeffect "", "~{edi},~{esi},~{edx},~{dirflag},~{fpsr},~{flags}"(), !dbg !18, !srcloc !1934 ret i32 123, !dbg !1835 }36 37 ; Function Attrs: nounwind readnone speculatable38 declare void @llvm.dbg.value(metadata, metadata, metadata)39 40 !llvm.dbg.cu = !{!2}41 !llvm.module.flags = !{!7, !8, !9}42 !llvm.ident = !{!10}43 44 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())45 !1 = distinct !DIGlobalVariable(name: "global", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true)46 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 9.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)47 !3 = !DIFile(filename: "multiple-param-dbg-value-entry.c", directory: "/")48 !4 = !{}49 !5 = !{!0}50 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)51 !7 = !{i32 2, !"Dwarf Version", i32 4}52 !8 = !{i32 2, !"Debug Info Version", i32 3}53 !9 = !{i32 1, !"wchar_size", i32 4}54 !10 = !{!"clang version 9.0.0 "}55 !11 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 9, type: !12, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !14)56 !12 = !DISubroutineType(types: !13)57 !13 = !{!6, !6, !6, !6}58 !14 = !{!15, !16, !17}59 !15 = !DILocalVariable(name: "p", arg: 1, scope: !11, file: !3, line: 9, type: !6)60 !16 = !DILocalVariable(name: "q", arg: 2, scope: !11, file: !3, line: 9, type: !6)61 !17 = !DILocalVariable(name: "r", arg: 3, scope: !11, file: !3, line: 9, type: !6)62 !18 = !DILocation(line: 9, column: 13, scope: !11)63 !19 = !{i32 213}64 65...66---67name: foo68alignment: 1669tracksRegLiveness: true70liveins:71 - { reg: '$edi' }72body: |73 bb.0.entry:74 liveins: $edi75 76 DBG_VALUE $edi, $noreg, !15, !DIExpression(), debug-location !1877 DBG_VALUE $esi, $noreg, !16, !DIExpression(), debug-location !1878 DBG_VALUE $edx, $noreg, !17, !DIExpression(), debug-location !1879 renamable $edi = nsw INC32r killed renamable $edi, implicit-def dead $eflags, debug-location !1880 MOV32mr $rip, 1, $noreg, @global, $noreg, killed renamable $edi, debug-location !18 :: (store (s32) into @global)81 INLINEASM &"", 1, 12, implicit-def dead early-clobber $edi, 12, implicit-def dead early-clobber $esi, 12, implicit-def dead early-clobber $edx, 12, implicit-def dead early-clobber $df, 12, implicit-def dead early-clobber $fpsw, 12, implicit-def dead early-clobber $eflags, !19, debug-location !1882 $eax = MOV32ri 123, debug-location !1883 RET64 killed $eax, debug-location !1884 85...86