| # RUN: llc -mtriple mips64-linux -emit-call-site-info -start-after=livedebugvalues -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s |
| |
| ## Test case where a parameter value could be described as a sub-register. |
| ## Built from source: |
| ## extern int foo(char*,int,int); |
| ## int f1(int a, char* str){ |
| ## return foo(str, a, 0); |
| ## } |
| ## fastcc attribute of foo() is added manually to the .ll to match the real case |
| |
| #CHECK: DW_TAG_GNU_call_site |
| #CHECK-NEXT: DW_AT_abstract_origin {{.*}} "foo" |
| |
| #CHECK: DW_TAG_GNU_call_site_parameter |
| #CHECK-NEXT: DW_AT_location (DW_OP_reg6 A2_64) |
| #CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_lit0) |
| #CHECK-EMPTY: |
| #CHECK-NEXT: DW_TAG_GNU_call_site_parameter |
| #CHECK-NEXT: DW_AT_location (DW_OP_reg4 A0_64) |
| #CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_reg5 A1_64)) |
| #CHECK-EMPTY: |
| ## The parameter, which value is loaded by COPY instr using sub-register, should be omitted. |
| #CHECK-NOT: DW_TAG_GNU_call_site_parameter |
| #CHECK-NOT: DW_AT_location (DW_OP_reg5 A1_64) |
| #CHECK-NOT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_reg4 A0_64)) |
| --- | |
| ; ModuleID = 'm.ll' |
| source_filename = "m.c" |
| target datalayout = "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128" |
| target triple = "mips64-unknown-linux" |
| |
| ; Function Attrs: nounwind |
| define signext i32 @f1(i32 signext %a, i8* %str) local_unnamed_addr !dbg !8 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %a, metadata !16, metadata !DIExpression()), !dbg !18 |
| call void @llvm.dbg.value(metadata i8* %str, metadata !17, metadata !DIExpression()), !dbg !18 |
| %call = tail call fastcc signext i32 @foo(i8* %str, i32 signext %a, i32 signext 0), !dbg !18 |
| ret i32 %call, !dbg !18 |
| } |
| |
| declare !dbg !21 fastcc signext i32 @foo(i8*, i32 signext, i32 signext) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| !llvm.ident = !{!7} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) |
| !1 = !DIFile(filename: "<stdin>", directory: "/dir") |
| !2 = !{} |
| !3 = !{i32 7, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{i32 7, !"PIC Level", i32 1} |
| !7 = !{!"clang version 11.0.0"} |
| !8 = distinct !DISubprogram(name: "f1", scope: !9, file: !9, line: 4, type: !10, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15) |
| !9 = !DIFile(filename: "m.c", directory: "/dir") |
| !10 = !DISubroutineType(types: !11) |
| !11 = !{!12, !12, !13} |
| !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64) |
| !14 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) |
| !15 = !{!16, !17} |
| !16 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !9, line: 4, type: !12) |
| !17 = !DILocalVariable(name: "str", arg: 2, scope: !8, file: !9, line: 4, type: !13) |
| !18 = !DILocation(line: 0, scope: !8) |
| !21 = !DISubprogram(name: "foo", scope: !9, file: !9, line: 2, type: !22, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !22 = !DISubroutineType(types: !23) |
| !23 = !{!12, !13, !12, !12} |
| |
| ... |
| --- |
| name: f1 |
| alignment: 8 |
| stack: |
| - { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$ra_64', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: |
| - { bb: 0, offset: 12, fwdArgRegs: |
| - { arg: 0, reg: '$a0_64' } |
| - { arg: 1, reg: '$a1' } |
| - { arg: 2, reg: '$a2' } } |
| body: | |
| bb.0.entry: |
| DBG_VALUE $a0_64, $noreg, !16, !DIExpression(), debug-location !18 |
| DBG_VALUE $a1_64, $noreg, !17, !DIExpression(), debug-location !18 |
| $sp_64 = DADDiu $sp_64, -16 |
| CFI_INSTRUCTION def_cfa_offset 16 |
| SD killed $ra_64, $sp_64, 8 :: (store (s64) into %stack.0) |
| CFI_INSTRUCTION offset $ra_64, -8 |
| $at_64 = OR64 $a0_64, $zero_64 |
| DBG_VALUE $a1_64, $noreg, !17, !DIExpression(), debug-location !18 |
| DBG_VALUE $at_64, $noreg, !16, !DIExpression(), debug-location !18 |
| $a0_64 = OR64 killed $a1_64, $zero_64, debug-location !18 |
| DBG_VALUE $a0_64, $noreg, !17, !DIExpression(), debug-location !18 |
| $a1 = OR $at, $zero, implicit killed $at_64, debug-location !18 |
| JAL @foo, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit $a1, implicit killed $a2, implicit-def $sp, implicit-def $v0, debug-location !18 { |
| $a2 = ADDiu $zero, 0, debug-location !18 |
| } |
| renamable $v0_64 = SLL64_32 killed renamable $v0, debug-location !18 |
| $ra_64 = LD $sp_64, 8, debug-location !18 :: (load (s64) from %stack.0) |
| PseudoReturn64 undef $ra_64, implicit $v0_64, debug-location !18 { |
| $sp_64 = DADDiu $sp_64, 16 |
| } |
| |
| ... |