128 lines
6.0 KiB
Plaintext
128 lines
6.0 KiB
Plaintext
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## Test mips32:
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# RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj -mtriple=mips-linux-gnu %s -o -| llvm-dwarfdump -| FileCheck %s
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## Test mipsel:
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# RUN: llc -emit-call-site-info -start-after=machineverifier -filetype=obj -mtriple=mipsel-linux-gnu %s -o -| llvm-dwarfdump -| FileCheck %s
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## Built from source:
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## extern int __attribute__((noinline)) sum(int a, int b);
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## void __attribute__((noinline)) set(int *adr, int val) {
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## val++;
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## *adr = val + sum(val, val);
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## }
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## Using command:
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## clang -g -O2 -target mips-linux-gnu m.c -c -mllvm -stop-before=machineverifier
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## Check that call site interpretation analysis can interpret calls with delay slot and
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## parameters set outside and inside of the call delay slot.
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## Test mips32:
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# CHECK: DW_TAG_GNU_call_site
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# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "sum"
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# CHECK-NEXT: DW_AT_low_pc
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# CHECK-EMPTY:
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## Parameter forwarding register A1_64 is set in call delay slot.
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# CHECK-NEXT: DW_TAG_GNU_call_site_parameter
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# CHECK-NEXT: DW_AT_location (DW_OP_reg5 A1_64)
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# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg17 S1_64+0)
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# CHECK-EMPTY:
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# CHECK-NEXT: DW_TAG_GNU_call_site_parameter
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# CHECK-NEXT: DW_AT_location (DW_OP_reg4 A0_64)
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# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg17 S1_64+0)
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--- |
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; ModuleID = 'm.ll'
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source_filename = "m.c"
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target datalayout = "E-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64"
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target triple = "mips-unknown-linux-gnu"
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; Function Attrs: noinline nounwind
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define dso_local void @set(i32* nocapture %adr, i32 signext %val) local_unnamed_addr !dbg !12 {
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entry:
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call void @llvm.dbg.value(metadata i32* %adr, metadata !17, metadata !DIExpression()), !dbg !19
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call void @llvm.dbg.value(metadata i32 %val, metadata !18, metadata !DIExpression()), !dbg !19
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%inc = add nsw i32 %val, 1, !dbg !19
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call void @llvm.dbg.value(metadata i32 %inc, metadata !18, metadata !DIExpression()), !dbg !19
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%call = tail call i32 @sum(i32 signext %inc, i32 signext %inc), !dbg !19
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%add = add nsw i32 %call, %inc, !dbg !19
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store i32 %add, i32* %adr, align 4, !dbg !19
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ret void
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}
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declare !dbg !4 dso_local i32 @sum(i32 signext, i32 signext) local_unnamed_addr
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!8, !9, !10}
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!llvm.ident = !{!11}
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!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)
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!1 = !DIFile(filename: "m.c", directory: "/dir")
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!2 = !{}
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!3 = !{!4}
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!4 = !DISubprogram(name: "sum", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7, !7, !7}
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!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!8 = !{i32 7, !"Dwarf Version", i32 4}
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!9 = !{i32 2, !"Debug Info Version", i32 3}
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!10 = !{i32 1, !"wchar_size", i32 4}
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!11 = !{!"clang version 11.0.0"}
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!12 = distinct !DISubprogram(name: "set", scope: !1, file: !1, line: 2, type: !13, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !16)
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!13 = !DISubroutineType(types: !14)
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!14 = !{null, !15, !7}
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!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 32)
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!16 = !{!17, !18}
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!17 = !DILocalVariable(name: "adr", arg: 1, scope: !12, file: !1, line: 2, type: !15)
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!18 = !DILocalVariable(name: "val", arg: 2, scope: !12, file: !1, line: 2, type: !7)
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!19 = !DILocation(line: 0, scope: !12)
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...
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---
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name: set
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alignment: 4
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stack:
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- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$ra', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$s1', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 2, name: '', type: spill-slot, offset: -12, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$s0', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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callSites:
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- { bb: 0, offset: 16, fwdArgRegs:
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- { arg: 0, reg: '$a0' }
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- { arg: 1, reg: '$a1' } }
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body: |
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bb.0.entry:
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DBG_VALUE $a0, $noreg, !17, !DIExpression(), debug-location !19
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DBG_VALUE $a1, $noreg, !18, !DIExpression(), debug-location !19
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DBG_VALUE $a1, $noreg, !18, !DIExpression(), debug-location !19
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$sp = ADDiu $sp, -32
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CFI_INSTRUCTION def_cfa_offset 32
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SW killed $ra, $sp, 28 :: (store 4 into %stack.0)
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SW killed $s1, $sp, 24 :: (store 4 into %stack.1)
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SW killed $s0, $sp, 20 :: (store 4 into %stack.2)
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CFI_INSTRUCTION offset $ra_64, -4
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CFI_INSTRUCTION offset $s1_64, -8
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CFI_INSTRUCTION offset $s0_64, -12
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$s0 = OR $a0, $zero
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DBG_VALUE $s0, $noreg, !17, !DIExpression(), debug-location !19
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renamable $s1 = nsw ADDiu killed renamable $a1, 1, debug-location !19
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DBG_VALUE $s1, $noreg, !18, !DIExpression(), debug-location !19
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$a0 = OR $s1, $zero, debug-location !19
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JAL @sum, csr_o32, implicit-def dead $ra, implicit $a0, implicit $a1, implicit-def $sp, implicit-def $v0, debug-location !19 {
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$a1 = OR $s1, $zero, debug-location !19
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}
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renamable $at = nsw ADDu killed renamable $v0, killed renamable $s1, debug-location !19
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SW killed renamable $at, killed renamable $s0, 0, debug-location !19 :: (store 4 into %ir.adr)
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$s0 = LW $sp, 20
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DBG_VALUE $a0, $noreg, !17, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !19
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$s1 = LW $sp, 24
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$ra = LW $sp, 28
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PseudoReturn undef $ra {
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$sp = ADDiu $sp, 32
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}
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...
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