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TheRock/compiler/amd-llvm/llvm/test/Transforms/GCOVProfiling/global-ctor.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

44 lines
1.8 KiB
LLVM

;; For a global constructor, _GLOBAL__sub_I_ only has artificial lines.
;; Test that we don't instrument those functions.
; RUN: mkdir -p %t && cd %t
; RUN: opt -S -passes=insert-gcov-profiling < %s | FileCheck %s
@var = dso_local global i32 0, align 4
@llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__sub_I_a.cc, ptr null }]
define internal void @__cxx_global_var_init() section ".text.startup" !dbg !7 {
; CHECK: define internal void @__cxx_global_var_init()
; CHECK: @__llvm_gcov_ctr
; CHECK: call i32 @_Z3foov()
entry:
%call = call i32 @_Z3foov(), !dbg !9
store i32 %call, ptr @var, align 4, !dbg !9
ret void, !dbg !9
}
declare i32 @_Z3foov()
;; Artificial lines only. Don't instrument.
define internal void @_GLOBAL__sub_I_a.cc() section ".text.startup" !dbg !10 {
; CHECK: define internal void @_GLOBAL__sub_I_a.cc()
; CHECK-NOT: @__llvm_gcov_ctr
; CHECK: call void @__cxx_global_var_init()
entry:
call void @__cxx_global_var_init(), !dbg !11
ret void
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, emissionKind: LineTablesOnly)
!1 = !DIFile(filename: "a.cc", directory: "/")
!2 = !{}
!3 = !{i32 7, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!7 = distinct !DISubprogram(name: "__cxx_global_var_init", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !0, retainedNodes: !2)
!8 = !DISubroutineType(types: !2)
!9 = !DILocation(line: 2, column: 11, scope: !7)
!10 = distinct !DISubprogram(linkageName: "_GLOBAL__sub_I_a.cc", scope: !1, file: !1, type: !8, flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !0, retainedNodes: !2)
!11 = !DILocation(line: 0, scope: !10)