1## Test mips64: 2# RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj -mtriple=mips64-linux-gnu %s -o -| llvm-dwarfdump -| FileCheck %s 3## Test mips64el: 4# RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj -mtriple=mips64el-linux-gnu %s -o -| llvm-dwarfdump -| FileCheck %s 5 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=machineverifier 14## Check that call site interpretation analysis can interpret calls with delay slot and 15## parameters set outside and inside of the call delay slot. 16 17## Test mips64: 18# CHECK: DW_TAG_GNU_call_site 19# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "sum" 20# CHECK-NEXT: DW_AT_low_pc 21# CHECK-EMPTY: 22## Parameter forwarding register A1_64 is set in call delay slot. 23# CHECK-NEXT: DW_TAG_GNU_call_site_parameter 24# 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_parameter 28# 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 nounwind 37 define void @set(i32* nocapture %adr, i32 signext %val) local_unnamed_addr !dbg !13 { 38 entry: 39 call void @llvm.dbg.value(metadata i32* %adr, metadata !18, metadata !DIExpression()), !dbg !20 40 call void @llvm.dbg.value(metadata i32 %val, metadata !19, metadata !DIExpression()), !dbg !20 41 %inc = add nsw i32 %val, 1, !dbg !20 42 call void @llvm.dbg.value(metadata i32 %inc, metadata !19, metadata !DIExpression()), !dbg !20 43 %call = tail call signext i32 @sum(i32 signext %inc, i32 signext %inc), !dbg !20 44 %add = add nsw i32 %call, %inc, !dbg !20 45 store i32 %add, i32* %adr, align 4, !dbg !20 46 ret void 47 } 48 49 declare !dbg !4 signext i32 @sum(i32 signext, i32 signext) local_unnamed_addr 50 51 ; Function Attrs: nounwind readnone speculatable willreturn 52 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: set 83alignment: 8 84stack: 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 !20 101 DBG_VALUE $a1_64, $noreg, !19, !DIExpression(), debug-location !20 102 DBG_VALUE $a1_64, $noreg, !19, !DIExpression(), debug-location !20 103 $sp_64 = DADDiu $sp_64, -32 104 CFI_INSTRUCTION def_cfa_offset 32 105 SD killed $ra_64, $sp_64, 24 :: (store 8 into %stack.0) 106 SD killed $s1_64, $sp_64, 16 :: (store 8 into %stack.1) 107 SD killed $s0_64, $sp_64, 8 :: (store 8 into %stack.2) 108 CFI_INSTRUCTION offset $ra_64, -8 109 CFI_INSTRUCTION offset $s1_64, -16 110 CFI_INSTRUCTION offset $s0_64, -24 111 $s0_64 = OR64 $a0_64, $zero_64 112 DBG_VALUE $a1, $noreg, !19, !DIExpression(), debug-location !20 113 DBG_VALUE $s0_64, $noreg, !18, !DIExpression(), debug-location !20 114 renamable $s1 = ADDiu renamable $a1, 1, implicit killed $a1_64, implicit-def $s1_64, debug-location !20 115 DBG_VALUE $s1, $noreg, !19, !DIExpression(), debug-location !20 116 $a0_64 = OR64 $s1_64, $zero_64, debug-location !20 117 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 !20 119 } 120 renamable $at = nsw ADDu killed renamable $v0, renamable $s1, implicit killed $s1_64, debug-location !20 121 SW killed renamable $at, killed renamable $s0_64, 0 122 $s0_64 = LD $sp_64, 8 123 $s1_64 = LD $sp_64, 16 124 $ra_64 = LD $sp_64, 24 125 PseudoReturn64 undef $ra_64 { 126 $sp_64 = DADDiu $sp_64, 32 127 } 128 129... 130