1# RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s 2# 3# CHECK: DW_TAG_GNU_call_site 4# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "foo" 5# CHECK-NEXT: DW_AT_low_pc 6# CHECK-EMPTY: 7# CHECK-NEXT: DW_TAG_GNU_call_site_parameter 8# CHECK-NEXT: DW_AT_location (DW_OP_reg2 RCX) 9# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg14 R14+0) 10# CHECK-EMPTY: 11# CHECK-NEXT: DW_TAG_GNU_call_site_parameter 12# CHECK-NEXT: DW_AT_location (DW_OP_reg1 RDX) 13# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_fbreg +8) 14# CHECK-EMPTY: 15# CHECK-NEXT: DW_TAG_GNU_call_site_parameter 16# CHECK-NEXT: DW_AT_location (DW_OP_reg4 RSI) 17# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_reg4 RSI)) 18# CHECK-EMPTY: 19# CHECK-NEXT: DW_TAG_GNU_call_site_parameter 20# CHECK-NEXT: DW_AT_location (DW_OP_reg5 RDI) 21# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_reg4 RSI)) 22# CHECK-EMPTY: 23# CHECK: DW_TAG_GNU_call_site 24# CHECK-NEXT: DW_AT_abstract_origin {{.*}}"foo" 25# CHECK-NEXT: DW_AT_low_pc 26# CHECK-EMPTY: 27# CHECK-NEXT: DW_TAG_GNU_call_site_parameter 28# RCX loads memory location. We can't rely that memory location won't be changed. 29# CHECK-NOT: DW_AT_location (DW_OP_reg2 RCX) 30# CHECK-NEXT: DW_AT_location (DW_OP_reg4 RSI) 31# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_lit4) 32# CHECK-EMPTY: 33# CHECK-NOT: DW_TAG_GNU_call_site_parameter 34# 35# Check that call site interpretation analysis can interpret instructions such 36# as move immediate, register to register moves, stack loading and LEA 37# instructions. Last negative check should verify that we are not producing 38# interpretation for RDX register since its loaded value is call clobberable. 39# Also check that we are generating proper call site debug entities. 40--- | 41 ; ModuleID = 'dbgcall-site-interpretation.c' 42 source_filename = "dbgcall-site-interpretation.c" 43 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 44 target triple = "x86_64-unknown-linux-gnu" 45 46 ; Function Attrs: nounwind uwtable 47 define dso_local i32 @baa(i32 %arg1, i32 %arg2, i32 %arg3, i32 %arg4) local_unnamed_addr !dbg !9 { 48 entry: 49 %arg3.addr = alloca i32, align 4 50 %local2 = alloca i32, align 4 51 call void @llvm.dbg.value(metadata i32 %arg1, metadata !14, metadata !DIExpression()), !dbg !21 52 call void @llvm.dbg.value(metadata i32 %arg2, metadata !15, metadata !DIExpression()), !dbg !21 53 call void @llvm.dbg.value(metadata i32 %arg3, metadata !16, metadata !DIExpression()), !dbg !21 54 store i32 %arg3, i32* %arg3.addr, align 4 55 call void @llvm.dbg.value(metadata i32 %arg4, metadata !17, metadata !DIExpression()), !dbg !21 56 %0 = bitcast i32* %local2 to i8*, !dbg !21 57 call void @llvm.dbg.value(metadata i32* %arg3.addr, metadata !16, metadata !DIExpression(DW_OP_deref)), !dbg !21 58 %call = call i32 @foo(i32 %arg1, i32 %arg2, i32* nonnull %arg3.addr, i32 %arg4), !dbg !21 59 call void @llvm.dbg.value(metadata i32 %call, metadata !18, metadata !DIExpression()), !dbg !21 60 %cmp = icmp sgt i32 %arg1, %arg2, !dbg !21 61 %1 = load i32, i32* %arg3.addr, align 4, !dbg !21 62 call void @llvm.dbg.value(metadata i32 %1, metadata !16, metadata !DIExpression()), !dbg !21 63 %add = add nsw i32 %1, %arg1, !dbg !21 64 %add1 = add nsw i32 %arg4, %arg2, !dbg !21 65 %local1.0 = select i1 %cmp, i32 %add, i32 %add1, !dbg !21 66 call void @llvm.dbg.value(metadata i32 %local1.0, metadata !18, metadata !DIExpression()), !dbg !21 67 %rem = srem i32 %1, %arg1, !dbg !21 68 %tobool = icmp eq i32 %rem, 0, !dbg !21 69 %mul = mul nsw i32 %1, %arg1, !dbg !21 70 %add3 = add nsw i32 %1, %arg4, !dbg !21 71 %storemerge = select i1 %tobool, i32 %mul, i32 %add3, !dbg !21 72 call void @llvm.dbg.value(metadata i32 %storemerge, metadata !19, metadata !DIExpression()), !dbg !21 73 store i32 %storemerge, i32* %local2, align 4, !dbg !21 74 %cmp6 = icmp slt i32 %storemerge, %arg4, !dbg !21 75 %local3.0.v = select i1 %cmp6, i32 %local1.0, i32 %arg1, !dbg !21 76 %local3.0 = mul nsw i32 %local3.0.v, %storemerge, !dbg !21 77 call void @llvm.dbg.value(metadata i32 %local3.0, metadata !20, metadata !DIExpression()), !dbg !21 78 call void @llvm.dbg.value(metadata i32* %local2, metadata !19, metadata !DIExpression(DW_OP_deref)), !dbg !21 79 %call12 = call i32 @foo(i32 %local1.0, i32 4, i32* nonnull %local2, i32 %local3.0), !dbg !21 80 call void @llvm.dbg.value(metadata i32 %call12, metadata !14, metadata !DIExpression()), !dbg !21 81 %add13 = add nsw i32 %call12, 4, !dbg !21 82 ret i32 %add13, !dbg !21 83 } 84 85 declare !dbg !4 dso_local i32 @foo(i32, i32, i32*, i32) local_unnamed_addr 86 87 ; Function Attrs: nounwind readnone speculatable 88 declare void @llvm.dbg.value(metadata, metadata, metadata) 89 90 !llvm.dbg.cu = !{!0} 91 !llvm.module.flags = !{!5, !6, !7} 92 !llvm.ident = !{!8} 93 94 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 9.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None) 95 !1 = !DIFile(filename: "dbgcall-site-interpretation.c", directory: "/dir") 96 !2 = !{} 97 !3 = !{!4} 98 !4 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 9, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) 99 !5 = !{i32 2, !"Dwarf Version", i32 4} 100 !6 = !{i32 2, !"Debug Info Version", i32 3} 101 !7 = !{i32 1, !"wchar_size", i32 4} 102 !8 = !{!"clang version 9.0.0"} 103 !9 = distinct !DISubprogram(name: "baa", scope: !1, file: !1, line: 10, type: !10, scopeLine: 10, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13) 104 !10 = !DISubroutineType(types: !11) 105 !11 = !{!12, !12, !12, !12, !12} 106 !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 107 !13 = !{!14, !15, !16, !17, !18, !19, !20} 108 !14 = !DILocalVariable(name: "arg1", arg: 1, scope: !9, file: !1, line: 10, type: !12) 109 !15 = !DILocalVariable(name: "arg2", arg: 2, scope: !9, file: !1, line: 10, type: !12) 110 !16 = !DILocalVariable(name: "arg3", arg: 3, scope: !9, file: !1, line: 10, type: !12) 111 !17 = !DILocalVariable(name: "arg4", arg: 4, scope: !9, file: !1, line: 10, type: !12) 112 !18 = !DILocalVariable(name: "local1", scope: !9, file: !1, line: 11, type: !12) 113 !19 = !DILocalVariable(name: "local2", scope: !9, file: !1, line: 11, type: !12) 114 !20 = !DILocalVariable(name: "local3", scope: !9, file: !1, line: 11, type: !12) 115 !21 = !DILocation(line: 10, column: 13, scope: !9) 116 117... 118--- 119name: baa 120liveins: 121 - { reg: '$edi', virtual-reg: '' } 122 - { reg: '$esi', virtual-reg: '' } 123 - { reg: '$edx', virtual-reg: '' } 124 - { reg: '$ecx', virtual-reg: '' } 125callSites: 126 - { bb: 0, offset: 23, fwdArgRegs: 127 - { arg: 0, reg: '$edi' } 128 - { arg: 1, reg: '$esi' } 129 - { arg: 2, reg: '$rdx' } 130 - { arg: 3, reg: '$ecx' } } 131 - { bb: 0, offset: 49, fwdArgRegs: 132 - { arg: 0, reg: '$edi' } 133 - { arg: 1, reg: '$esi' } 134 - { arg: 2, reg: '$rdx' } 135 - { arg: 3, reg: '$ecx' } } 136body: | 137 bb.0.entry: 138 liveins: $ecx, $edi, $edx, $esi, $r15, $r14, $rbx 139 140 DBG_VALUE $edi, $noreg, !14, !DIExpression(), debug-location !21 141 DBG_VALUE $esi, $noreg, !15, !DIExpression(), debug-location !21 142 DBG_VALUE $edx, $noreg, !16, !DIExpression(), debug-location !21 143 DBG_VALUE $ecx, $noreg, !17, !DIExpression(), debug-location !21 144 frame-setup PUSH64r killed $r15, implicit-def $rsp, implicit $rsp 145 CFI_INSTRUCTION def_cfa_offset 16 146 frame-setup PUSH64r killed $r14, implicit-def $rsp, implicit $rsp 147 CFI_INSTRUCTION def_cfa_offset 24 148 frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp 149 CFI_INSTRUCTION def_cfa_offset 32 150 $rsp = frame-setup SUB64ri8 $rsp, 16, implicit-def dead $eflags 151 CFI_INSTRUCTION def_cfa_offset 48 152 CFI_INSTRUCTION offset $rbx, -32 153 CFI_INSTRUCTION offset $r14, -24 154 CFI_INSTRUCTION offset $r15, -16 155 $r14d = MOV32rr $ecx, implicit-def $r14 156 DBG_VALUE $edx, $noreg, !16, !DIExpression(), debug-location !21 157 $r15d = MOV32rr $esi, implicit-def $r15 158 $ebx = MOV32rr $edi, implicit-def $rbx 159 $edi = MOV32rr $esi 160 MOV32mr $rsp, 1, $noreg, 8, $noreg, killed renamable $edx :: (store (s32) into %ir.arg3.addr) 161 renamable $rdx = LEA64r $rsp, 1, $noreg, 8, $noreg 162 renamable $ecx = MOV32rr $r14d, 163 CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit $esi, implicit $rdx, implicit $ecx, implicit-def $rsp, implicit-def $ssp, implicit-def $eax, implicit-def $rax, debug-location !21 164 DBG_VALUE $noreg, $noreg, !18, !DIExpression(), debug-location !21 165 $rdx = MOV64rr renamable $rax 166 $ecx = KILL renamable $ecx, implicit-def $rcx 167 renamable $eax = LEA64_32r renamable $rcx, 1, renamable $rbx, 0, $noreg, debug-location !21 168 renamable $edi = LEA64_32r renamable $r14, 1, renamable $r15, 0, $noreg, debug-location !21 169 CMP32rr renamable $ebx, renamable $r15d, implicit-def $eflags, implicit killed $r15, debug-location !21 170 renamable $edi = CMOV32rr killed renamable $edi, killed renamable $eax, 15, implicit killed $eflags, debug-location !21 171 DBG_VALUE $edi, $noreg, !18, !DIExpression(), debug-location !21 172 $eax = MOV32rr $ecx, debug-location !21 173 CDQ implicit-def $eax, implicit-def $edx, implicit $eax, debug-location !21 174 IDIV32r renamable $ebx, implicit-def dead $eax, implicit-def $edx, implicit-def dead $eflags, implicit $eax, implicit $edx, debug-location !21 175 $eax = MOV32rr $ecx, debug-location !21 176 renamable $eax = nsw IMUL32rr killed renamable $eax, renamable $ebx, implicit-def dead $eflags, debug-location !21 177 renamable $ecx = nsw ADD32rr renamable $ecx, renamable $r14d, implicit-def dead $eflags, implicit killed $rcx, implicit-def $rcx, debug-location !21 178 TEST32rr killed renamable $edx, renamable $edx, implicit-def $eflags, debug-location !21 179 renamable $ecx = CMOV32rr renamable $ecx, killed renamable $eax, 4, implicit killed $eflags, implicit killed $rcx, implicit-def $rcx, debug-location !21 180 DBG_VALUE $ecx, $noreg, !19, !DIExpression(), debug-location !21 181 MOV32mr $rsp, 1, $noreg, 12, $noreg, renamable $ecx, debug-location !21 :: (store (s32) into %ir.local2) 182 CMP32rr renamable $ecx, renamable $r14d, implicit-def $eflags, implicit killed $r14, debug-location !21 183 renamable $ebx = CMOV32rr renamable $ebx, renamable $edi, 12, implicit killed $eflags, implicit killed $rbx, implicit-def $rbx, debug-location !21 184 renamable $ecx = nsw IMUL32rr renamable $ecx, renamable $ebx, implicit-def dead $eflags, implicit killed $rbx, implicit killed $rcx, implicit-def $rcx, debug-location !21 185 DBG_VALUE $rsp, $noreg, !19, !DIExpression(DW_OP_plus_uconst, 12, DW_OP_deref), debug-location !21 186 DBG_VALUE $ecx, $noreg, !20, !DIExpression(), debug-location !21 187 $esi = MOV32ri 4, debug-location !21 188 renamable $ecx = MOV32rm $rsp, 1, $noreg, 8, $noreg, implicit-def $rcx, debug-location !21 :: (dereferenceable load (s32) from %ir.arg3.addr) 189 CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit $esi, implicit $rdx, implicit $ecx, implicit-def $rsp, implicit-def $ssp, implicit-def $eax, implicit-def $rax, debug-location !21 190 DBG_VALUE $eax, $noreg, !14, !DIExpression(), debug-location !21 191 renamable $eax = nsw ADD32ri8 killed renamable $eax, 4, implicit-def dead $eflags, debug-location !21 192 $rsp = frame-destroy ADD64ri8 $rsp, 16, implicit-def dead $eflags, debug-location !21 193 CFI_INSTRUCTION def_cfa_offset 32, debug-location !21 194 $rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !21 195 CFI_INSTRUCTION def_cfa_offset 24, debug-location !21 196 $r14 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !21 197 DBG_VALUE $ecx, $noreg, !17, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !21 198 CFI_INSTRUCTION def_cfa_offset 16, debug-location !21 199 $r15 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !21 200 DBG_VALUE $esi, $noreg, !15, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !21 201 CFI_INSTRUCTION def_cfa_offset 8, debug-location !21 202 RETQ $eax, debug-location !21 203 204... 205