derek.holloway
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70 lines
2.7 KiB
YAML
70 lines
2.7 KiB
YAML
# RUN: llc -emit-call-site-info -mtriple=x86_64-pc-linux -run-pass=unreachable-mbb-elimination -o - %s | FileCheck %s
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# RUN: llc -emit-call-site-info -mtriple=x86_64-pc-linux -passes=unreachable-mbb-elimination -o - %s | FileCheck %s
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# Verify that the call site information for the call residing in the eliminated
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# block is removed. This test case would previously trigger an assertion when
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# deleting the call instruction.
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# CHECK: name: main
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# CHECK: callSites: []
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--- |
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nounwind uwtable
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define i32 @main() !dbg !12 {
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unreachable
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}
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declare !dbg !4 void @foo()
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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 9.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
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!1 = !DIFile(filename: "unreachable.c", directory: "/")
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!2 = !{}
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!3 = !{!4}
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!4 = !DISubprogram(name: "foo", 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 = !{null}
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!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!8 = !{i32 2, !"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 9.0.0"}
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!12 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 3, type: !13, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!13 = !DISubroutineType(types: !14)
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!14 = !{!7}
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!15 = distinct !DILexicalBlock(scope: !12, file: !1, line: 4, column: 7)
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!16 = !DILocation(line: 4, column: 7, scope: !12)
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!17 = !DILocation(line: 5, column: 5, scope: !15)
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!18 = !DILocation(line: 6, column: 3, scope: !12)
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...
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---
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name: main
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tracksRegLiveness: true
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callSites:
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- { bb: 1, offset: 0 }
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body: |
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bb.0:
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successors: %bb.2(0x80000000)
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frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
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CFI_INSTRUCTION def_cfa_offset 16
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JMP_1 %bb.2, debug-location !16
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bb.1:
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CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !17
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bb.2:
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$eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !18
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$rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !18
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CFI_INSTRUCTION def_cfa_offset 8, debug-location !18
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RET64 killed $eax, debug-location !18
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...
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