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1## Test mips64:2# RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj -mtriple=mips64-linux-gnu %s -o -| llvm-dwarfdump -| FileCheck %s3## Test mips64el:4# RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj -mtriple=mips64el-linux-gnu %s -o -| llvm-dwarfdump -| FileCheck %s5 6## Built from source:7## extern int __attribute__((noinline)) sum(int a, int b);8## void __attribute__((noinline)) set(int *adr, int val) {9## val++;10## *adr = val + sum(val, val);11## }12## Using command:13## clang -g -O2 -target mips64-linux-gnu m.c -c -mllvm -stop-before=machineverifier14## Check that call site interpretation analysis can interpret calls with delay slot and15## parameters set outside and inside of the call delay slot.16 17## Test mips64:18# CHECK: DW_TAG_GNU_call_site19# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "sum"20# CHECK-NEXT: DW_AT_low_pc21# CHECK-EMPTY:22## Parameter forwarding register A1_64 is set in call delay slot.23# CHECK-NEXT: DW_TAG_GNU_call_site_parameter24# CHECK-NEXT: DW_AT_location (DW_OP_reg5 A1_64)25# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg17 S1_64+0)26# CHECK-EMPTY:27# CHECK-NEXT: DW_TAG_GNU_call_site_parameter28# CHECK-NEXT: DW_AT_location (DW_OP_reg4 A0_64)29# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg17 S1_64+0)30 31--- |32 ; ModuleID = 'm.ll'33 source_filename = "m.c"34 target datalayout = "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128"35 target triple = "mips64-unknown-linux-gnu"36 ; Function Attrs: noinline nounwind37 define void @set(ptr nocapture %adr, i32 signext %val) local_unnamed_addr !dbg !13 {38 entry:39 call void @llvm.dbg.value(metadata ptr %adr, metadata !18, metadata !DIExpression()), !dbg !2040 call void @llvm.dbg.value(metadata i32 %val, metadata !19, metadata !DIExpression()), !dbg !2041 %inc = add nsw i32 %val, 1, !dbg !2042 call void @llvm.dbg.value(metadata i32 %inc, metadata !19, metadata !DIExpression()), !dbg !2043 %call = tail call signext i32 @sum(i32 signext %inc, i32 signext %inc), !dbg !2044 %add = add nsw i32 %call, %inc, !dbg !2045 store i32 %add, ptr %adr, align 4, !dbg !2046 ret void47 }48 49 declare !dbg !4 signext i32 @sum(i32 signext, i32 signext) local_unnamed_addr50 51 ; Function Attrs: nounwind readnone speculatable willreturn52 declare void @llvm.dbg.value(metadata, metadata, metadata)53 54 !llvm.dbg.cu = !{!0}55 !llvm.module.flags = !{!8, !9, !10, !11}56 !llvm.ident = !{!12}57 58 !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)59 !1 = !DIFile(filename: "m.c", directory: "/dir")60 !2 = !{}61 !3 = !{!4}62 !4 = !DISubprogram(name: "sum", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)63 !5 = !DISubroutineType(types: !6)64 !6 = !{!7, !7, !7}65 !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)66 !8 = !{i32 7, !"Dwarf Version", i32 4}67 !9 = !{i32 2, !"Debug Info Version", i32 3}68 !10 = !{i32 1, !"wchar_size", i32 4}69 !11 = !{i32 7, !"PIC Level", i32 1}70 !12 = !{!"clang version 11.0.0"}71 !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)72 !14 = !DISubroutineType(types: !15)73 !15 = !{null, !16, !7}74 !16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64)75 !17 = !{!18, !19}76 !18 = !DILocalVariable(name: "adr", arg: 1, scope: !13, file: !1, line: 2, type: !16)77 !19 = !DILocalVariable(name: "val", arg: 2, scope: !13, file: !1, line: 2, type: !7)78 !20 = !DILocation(line: 0, scope: !13)79 80...81---82name: set83alignment: 884stack:85 - { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,86 stack-id: default, callee-saved-register: '$ra_64', callee-saved-restored: true,87 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }88 - { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,89 stack-id: default, callee-saved-register: '$s1_64', callee-saved-restored: true,90 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }91 - { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,92 stack-id: default, callee-saved-register: '$s0_64', callee-saved-restored: true,93 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }94callSites:95 - { bb: 0, offset: 17, fwdArgRegs:96 - { arg: 0, reg: '$a0_64' }97 - { arg: 1, reg: '$a1_64' } }98body: |99 bb.0.entry:100 DBG_VALUE $a0_64, $noreg, !18, !DIExpression(), debug-location !20101 DBG_VALUE $a1_64, $noreg, !19, !DIExpression(), debug-location !20102 DBG_VALUE $a1_64, $noreg, !19, !DIExpression(), debug-location !20103 $sp_64 = DADDiu $sp_64, -32104 CFI_INSTRUCTION def_cfa_offset 32105 SD killed $ra_64, $sp_64, 24 :: (store (s64) into %stack.0)106 SD killed $s1_64, $sp_64, 16 :: (store (s64) into %stack.1)107 SD killed $s0_64, $sp_64, 8 :: (store (s64) into %stack.2)108 CFI_INSTRUCTION offset $ra_64, -8109 CFI_INSTRUCTION offset $s1_64, -16110 CFI_INSTRUCTION offset $s0_64, -24111 $s0_64 = OR64 $a0_64, $zero_64112 DBG_VALUE $a1, $noreg, !19, !DIExpression(), debug-location !20113 DBG_VALUE $s0_64, $noreg, !18, !DIExpression(), debug-location !20114 renamable $s1 = ADDiu renamable $a1, 1, implicit killed $a1_64, implicit-def $s1_64, debug-location !20115 DBG_VALUE $s1, $noreg, !19, !DIExpression(), debug-location !20116 $a0_64 = OR64 $s1_64, $zero_64, debug-location !20117 JAL @sum, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit $a1_64, implicit-def $sp, implicit-def $v0, debug-location !20 {118 $a1_64 = OR64 $s1_64, $zero_64, debug-location !20119 }120 renamable $at = nsw ADDu killed renamable $v0, renamable $s1, implicit killed $s1_64, debug-location !20121 SW killed renamable $at, killed renamable $s0_64, 0122 $s0_64 = LD $sp_64, 8123 $s1_64 = LD $sp_64, 16124 $ra_64 = LD $sp_64, 24125 PseudoReturn64 undef $ra_64 {126 $sp_64 = DADDiu $sp_64, 32127 }128 129...130