| ## Test mips64: |
| # RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj -mtriple=mips64-linux-gnu %s -o -| llvm-dwarfdump -| FileCheck %s |
| ## Test mips64el: |
| # RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj -mtriple=mips64el-linux-gnu %s -o -| llvm-dwarfdump -| FileCheck %s |
| |
| ## Built from source: |
| ## extern int __attribute__((noinline)) sum(int a, int b); |
| ## void __attribute__((noinline)) set(int *adr, int val) { |
| ## val++; |
| ## *adr = val + sum(val, val); |
| ## } |
| ## Using command: |
| ## clang -g -O2 -target mips64-linux-gnu m.c -c -mllvm -stop-before=machineverifier |
| ## Check that call site interpretation analysis can interpret calls with delay slot and |
| ## parameters set outside and inside of the call delay slot. |
| |
| ## Test mips64: |
| # CHECK: DW_TAG_GNU_call_site |
| # CHECK-NEXT: DW_AT_abstract_origin {{.*}} "sum" |
| # CHECK-NEXT: DW_AT_low_pc |
| # CHECK-EMPTY: |
| ## Parameter forwarding register A1_64 is set in call delay slot. |
| # CHECK-NEXT: DW_TAG_GNU_call_site_parameter |
| # CHECK-NEXT: DW_AT_location (DW_OP_reg5 A1_64) |
| # CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg17 S1_64+0) |
| # 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_breg17 S1_64+0) |
| |
| --- | |
| ; 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-gnu" |
| ; Function Attrs: noinline nounwind |
| define void @set(i32* nocapture %adr, i32 signext %val) local_unnamed_addr !dbg !13 { |
| entry: |
| call void @llvm.dbg.value(metadata i32* %adr, metadata !18, metadata !DIExpression()), !dbg !20 |
| call void @llvm.dbg.value(metadata i32 %val, metadata !19, metadata !DIExpression()), !dbg !20 |
| %inc = add nsw i32 %val, 1, !dbg !20 |
| call void @llvm.dbg.value(metadata i32 %inc, metadata !19, metadata !DIExpression()), !dbg !20 |
| %call = tail call signext i32 @sum(i32 signext %inc, i32 signext %inc), !dbg !20 |
| %add = add nsw i32 %call, %inc, !dbg !20 |
| store i32 %add, i32* %adr, align 4, !dbg !20 |
| ret void |
| } |
| |
| declare !dbg !4 signext i32 @sum(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 = !{!8, !9, !10, !11} |
| !llvm.ident = !{!12} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "m.c", directory: "/dir") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DISubprogram(name: "sum", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{!7, !7, !7} |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = !{i32 7, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"wchar_size", i32 4} |
| !11 = !{i32 7, !"PIC Level", i32 1} |
| !12 = !{!"clang version 11.0.0"} |
| !13 = distinct !DISubprogram(name: "set", scope: !1, file: !1, line: 2, type: !14, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !17) |
| !14 = !DISubroutineType(types: !15) |
| !15 = !{null, !16, !7} |
| !16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64) |
| !17 = !{!18, !19} |
| !18 = !DILocalVariable(name: "adr", arg: 1, scope: !13, file: !1, line: 2, type: !16) |
| !19 = !DILocalVariable(name: "val", arg: 2, scope: !13, file: !1, line: 2, type: !7) |
| !20 = !DILocation(line: 0, scope: !13) |
| |
| ... |
| --- |
| name: set |
| alignment: 8 |
| stack: |
| - { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$ra_64', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$s1_64', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$s0_64', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: |
| - { bb: 0, offset: 17, fwdArgRegs: |
| - { arg: 0, reg: '$a0_64' } |
| - { arg: 1, reg: '$a1_64' } } |
| body: | |
| bb.0.entry: |
| DBG_VALUE $a0_64, $noreg, !18, !DIExpression(), debug-location !20 |
| DBG_VALUE $a1_64, $noreg, !19, !DIExpression(), debug-location !20 |
| DBG_VALUE $a1_64, $noreg, !19, !DIExpression(), debug-location !20 |
| $sp_64 = DADDiu $sp_64, -32 |
| CFI_INSTRUCTION def_cfa_offset 32 |
| SD killed $ra_64, $sp_64, 24 :: (store (s64) into %stack.0) |
| SD killed $s1_64, $sp_64, 16 :: (store (s64) into %stack.1) |
| SD killed $s0_64, $sp_64, 8 :: (store (s64) into %stack.2) |
| CFI_INSTRUCTION offset $ra_64, -8 |
| CFI_INSTRUCTION offset $s1_64, -16 |
| CFI_INSTRUCTION offset $s0_64, -24 |
| $s0_64 = OR64 $a0_64, $zero_64 |
| DBG_VALUE $a1, $noreg, !19, !DIExpression(), debug-location !20 |
| DBG_VALUE $s0_64, $noreg, !18, !DIExpression(), debug-location !20 |
| renamable $s1 = ADDiu renamable $a1, 1, implicit killed $a1_64, implicit-def $s1_64, debug-location !20 |
| DBG_VALUE $s1, $noreg, !19, !DIExpression(), debug-location !20 |
| $a0_64 = OR64 $s1_64, $zero_64, debug-location !20 |
| JAL @sum, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit $a1_64, implicit-def $sp, implicit-def $v0, debug-location !20 { |
| $a1_64 = OR64 $s1_64, $zero_64, debug-location !20 |
| } |
| renamable $at = nsw ADDu killed renamable $v0, renamable $s1, implicit killed $s1_64, debug-location !20 |
| SW killed renamable $at, killed renamable $s0_64, 0 |
| $s0_64 = LD $sp_64, 8 |
| $s1_64 = LD $sp_64, 16 |
| $ra_64 = LD $sp_64, 24 |
| PseudoReturn64 undef $ra_64 { |
| $sp_64 = DADDiu $sp_64, 32 |
| } |
| |
| ... |