| # RUN: llc -emit-call-site-info -start-after=livedebugvalues -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s |
| |
| # Based on the following C reproducer: |
| # |
| # extern void call_int(int); |
| # extern void call_int_int(int, int); |
| # extern void call_long(long); |
| # extern int global; |
| # |
| # int same_reg(int p) { |
| # call_int(p); |
| # return 0; |
| # } |
| # |
| # int super_reg(unsigned p) { |
| # call_long(p); |
| # return 0; |
| # } |
| # |
| # int sub_reg(int p, long q) { |
| # call_int_int(q, global); |
| # return p; |
| # } |
| |
| --- | |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64" |
| |
| @global = external global i32, align 4 |
| |
| ; Function Attrs: noinline nounwind |
| define i32 @same_reg(i32 %p) #0 !dbg !19 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %p, metadata !23, metadata !DIExpression()), !dbg !24 |
| tail call void @call_int(i32 %p), !dbg !25 |
| ret i32 0, !dbg !26 |
| } |
| |
| declare !dbg !4 void @call_int(i32) |
| |
| ; Function Attrs: noinline nounwind |
| define i32 @super_reg(i32 %p) #0 !dbg !27 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %p, metadata !32, metadata !DIExpression()), !dbg !33 |
| %conv = zext i32 %p to i64, !dbg !34 |
| tail call void @call_long(i64 %conv), !dbg !34 |
| ret i32 0, !dbg !35 |
| } |
| |
| declare !dbg !8 void @call_long(i64) |
| |
| ; Function Attrs: noinline nounwind |
| define i32 @sub_reg(i32 returned %p, i64 %q) #0 !dbg !36 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %p, metadata !40, metadata !DIExpression()), !dbg !42 |
| call void @llvm.dbg.value(metadata i64 %q, metadata !41, metadata !DIExpression()), !dbg !42 |
| %conv = trunc i64 %q to i32, !dbg !43 |
| %0 = load i32, i32* @global, align 4, !dbg !43 |
| tail call void @call_int_int(i32 %conv, i32 %0), !dbg !43 |
| ret i32 %p, !dbg !44 |
| } |
| |
| declare !dbg !12 void @call_int_int(i32, i32) |
| |
| ; Function Attrs: nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { noinline nounwind "frame-pointer"="all" } |
| attributes #1 = { nounwind readnone speculatable willreturn } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!15, !16, !17} |
| !llvm.ident = !{!18} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (ssh://gerritmirror.rnd.ki.sw.ericsson.se:29418/flextools/llvm-project.git f76e863b549ddccd5e917e2f3ff50646915654d2)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) |
| !1 = !DIFile(filename: "orrxrs.c", directory: "/repo/edasten/llvm-project/llvm") |
| !2 = !{} |
| !4 = !DISubprogram(name: "call_int", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{null, !7} |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = !DISubprogram(name: "call_long", scope: !1, file: !1, line: 3, type: !9, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{null, !11} |
| !11 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) |
| !12 = !DISubprogram(name: "call_int_int", scope: !1, file: !1, line: 2, type: !13, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{null, !7, !7} |
| !15 = !{i32 2, !"Dwarf Version", i32 4} |
| !16 = !{i32 2, !"Debug Info Version", i32 3} |
| !17 = !{i32 1, !"wchar_size", i32 4} |
| !18 = !{!"clang version 10.0.0 (ssh://gerritmirror.rnd.ki.sw.ericsson.se:29418/flextools/llvm-project.git f76e863b549ddccd5e917e2f3ff50646915654d2)"} |
| !19 = distinct !DISubprogram(name: "same_reg", scope: !1, file: !1, line: 6, type: !20, scopeLine: 6, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !22) |
| !20 = !DISubroutineType(types: !21) |
| !21 = !{!7, !7} |
| !22 = !{!23} |
| !23 = !DILocalVariable(name: "p", arg: 1, scope: !19, file: !1, line: 6, type: !7) |
| !24 = !DILocation(line: 0, scope: !19) |
| !25 = !DILocation(line: 7, scope: !19) |
| !26 = !DILocation(line: 8, scope: !19) |
| !27 = distinct !DISubprogram(name: "super_reg", scope: !1, file: !1, line: 11, type: !28, scopeLine: 11, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !31) |
| !28 = !DISubroutineType(types: !29) |
| !29 = !{!7, !30} |
| !30 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned) |
| !31 = !{!32} |
| !32 = !DILocalVariable(name: "p", arg: 1, scope: !27, file: !1, line: 11, type: !30) |
| !33 = !DILocation(line: 0, scope: !27) |
| !34 = !DILocation(line: 12, scope: !27) |
| !35 = !DILocation(line: 13, scope: !27) |
| !36 = distinct !DISubprogram(name: "sub_reg", scope: !1, file: !1, line: 16, type: !37, scopeLine: 16, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !39) |
| !37 = !DISubroutineType(types: !38) |
| !38 = !{!7, !7, !11} |
| !39 = !{!40, !41} |
| !40 = !DILocalVariable(name: "p", arg: 1, scope: !36, file: !1, line: 16, type: !7) |
| !41 = !DILocalVariable(name: "q", arg: 2, scope: !36, file: !1, line: 16, type: !11) |
| !42 = !DILocation(line: 0, scope: !36) |
| !43 = !DILocation(line: 17, scope: !36) |
| !44 = !DILocation(line: 18, scope: !36) |
| |
| ... |
| --- |
| name: same_reg |
| alignment: 4 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$w0' } |
| frameInfo: |
| stackSize: 16 |
| maxAlignment: 8 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, type: spill-slot, offset: -8, size: 8, alignment: 8, callee-saved-register: '$lr' } |
| - { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 8, callee-saved-register: '$fp' } |
| callSites: |
| - { bb: 0, offset: 8, fwdArgRegs: |
| - { arg: 0, reg: '$w0' } } |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| liveins: $w0, $lr |
| |
| DBG_VALUE $w0, $noreg, !23, !DIExpression(), debug-location !24 |
| DBG_VALUE $w0, $noreg, !23, !DIExpression(), debug-location !24 |
| DBG_VALUE $w0, $noreg, !23, !DIExpression(), debug-location !24 |
| early-clobber $sp = frame-setup STPXpre $fp, killed $lr, $sp, -2 :: (store (s64) into %stack.1), (store (s64) into %stack.0) |
| $fp = frame-setup ADDXri $sp, 0, 0 |
| frame-setup CFI_INSTRUCTION def_cfa $w29, 16 |
| frame-setup CFI_INSTRUCTION offset $w30, -8, debug-location !25 |
| frame-setup CFI_INSTRUCTION offset $w29, -16, debug-location !25 |
| BL @call_int, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, debug-location !25 |
| DBG_VALUE $w0, $noreg, !23, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !24 |
| $w0 = ORRWrs $wzr, $wzr, 0, debug-location !26 |
| early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2, debug-location !26 :: (load (s64) from %stack.1), (load (s64) from %stack.0) |
| RET undef $lr, implicit killed $w0, debug-location !26 |
| |
| ... |
| |
| # CHECK: DW_TAG_GNU_call_site |
| # CHECK-NEXT: DW_AT_abstract_origin ({{.*}} "call_int") |
| # |
| # CHECK: DW_TAG_GNU_call_site_parameter |
| # CHECK-NEXT: DW_AT_location (DW_OP_reg0 W0) |
| # CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_reg0 W0)) |
| |
| --- |
| name: super_reg |
| alignment: 4 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$w0' } |
| frameInfo: |
| stackSize: 16 |
| maxAlignment: 8 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, type: spill-slot, offset: -8, size: 8, alignment: 8, callee-saved-register: '$lr' } |
| - { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 8, callee-saved-register: '$fp' } |
| callSites: |
| - { bb: 0, offset: 9, fwdArgRegs: |
| - { arg: 0, reg: '$x0' } } |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| liveins: $w0, $lr |
| |
| DBG_VALUE $w0, $noreg, !32, !DIExpression(), debug-location !33 |
| DBG_VALUE $w0, $noreg, !32, !DIExpression(), debug-location !33 |
| early-clobber $sp = frame-setup STPXpre $fp, killed $lr, $sp, -2 :: (store (s64) into %stack.1), (store (s64) into %stack.0) |
| $fp = frame-setup ADDXri $sp, 0, 0 |
| frame-setup CFI_INSTRUCTION def_cfa $w29, 16 |
| frame-setup CFI_INSTRUCTION offset $w30, -8, debug-location !34 |
| frame-setup CFI_INSTRUCTION offset $w29, -16, debug-location !34 |
| renamable $w0 = ORRWrs $wzr, killed renamable $w0, 0, implicit-def $x0, debug-location !34 |
| DBG_VALUE $w0, $noreg, !32, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !33 |
| BL @call_long, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $x0, implicit-def $sp, debug-location !34 |
| $w0 = ORRWrs $wzr, $wzr, 0, debug-location !35 |
| early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2, debug-location !35 :: (load (s64) from %stack.1), (load (s64) from %stack.0) |
| RET undef $lr, implicit killed $w0, debug-location !35 |
| |
| ... |
| |
| # CHECK: DW_TAG_GNU_call_site |
| # CHECK-NEXT: DW_AT_abstract_origin ({{.*}} "call_long") |
| # |
| # CHECK: DW_TAG_GNU_call_site_parameter |
| # CHECK-NEXT: DW_AT_location (DW_OP_reg0 W0) |
| # CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_reg0 W0)) |
| |
| --- |
| name: sub_reg |
| alignment: 4 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$w0' } |
| - { reg: '$x1' } |
| frameInfo: |
| stackSize: 32 |
| maxAlignment: 16 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, callee-saved-register: '$x19' } |
| - { id: 1, type: spill-slot, offset: -24, size: 8, alignment: 8, callee-saved-register: '$lr' } |
| - { id: 2, type: spill-slot, offset: -32, size: 8, alignment: 8, callee-saved-register: '$fp' } |
| callSites: |
| - { bb: 0, offset: 17, fwdArgRegs: |
| - { arg: 0, reg: '$w0' } |
| - { arg: 1, reg: '$w1' } } |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| liveins: $w0, $x1, $lr, $x19 |
| |
| DBG_VALUE $w0, $noreg, !40, !DIExpression(), debug-location !42 |
| DBG_VALUE $x1, $noreg, !41, !DIExpression(), debug-location !42 |
| early-clobber $sp = frame-setup STPXpre $fp, killed $lr, $sp, -4 :: (store (s64) into %stack.2), (store (s64) into %stack.1) |
| frame-setup STRXui killed $x19, $sp, 2 :: (store (s64) into %stack.0) |
| $fp = frame-setup ADDXri $sp, 0, 0 |
| frame-setup CFI_INSTRUCTION def_cfa $w29, 32 |
| frame-setup CFI_INSTRUCTION offset $w19, -16 |
| frame-setup CFI_INSTRUCTION offset $w30, -24 |
| frame-setup CFI_INSTRUCTION offset $w29, -32 |
| renamable $x9 = ADRP target-flags(aarch64-page) @global, debug-location !43 |
| $x8 = ORRXrs $xzr, killed $x1, 0 |
| DBG_VALUE $x8, $noreg, !41, !DIExpression(), debug-location !42 |
| renamable $w1 = LDRWui killed renamable $x9, target-flags(aarch64-pageoff, aarch64-nc) @global, debug-location !43 :: (dereferenceable load (s32) from @global) |
| $w19 = ORRWrs $wzr, killed $w0, 0 |
| DBG_VALUE $w19, $noreg, !40, !DIExpression(), debug-location !42 |
| DBG_VALUE $w19, $noreg, !40, !DIExpression(), debug-location !42 |
| $w0 = ORRWrs $wzr, killed $w8, 0, implicit $x8, debug-location !43 |
| BL @call_int_int, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit killed $w1, implicit-def $sp, debug-location !43 |
| DBG_VALUE $x1, $noreg, !41, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !42 |
| $w0 = ORRWrs $wzr, killed $w19, 0, debug-location !44 |
| DBG_VALUE $w0, $noreg, !40, !DIExpression(), debug-location !42 |
| $x19 = frame-destroy LDRXui $sp, 2, debug-location !44 :: (load (s64) from %stack.0) |
| early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 4, debug-location !44 :: (load (s64) from %stack.2), (load (s64) from %stack.1) |
| RET undef $lr, implicit killed $w0, debug-location !44 |
| |
| ... |
| |
| # CHECK: DW_TAG_GNU_call_site |
| # CHECK-NEXT: DW_AT_abstract_origin ({{.*}} "call_int_int") |
| # |
| # CHECK: DW_TAG_GNU_call_site_parameter |
| # CHECK-NEXT: DW_AT_location (DW_OP_reg0 W0) |
| # CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_reg1 W1)) |