c23b4fbdbb
Now that #149310 has restricted lifetime intrinsics to only work on allocas, we can also drop the explicit size argument. Instead, the size is implied by the alloca. This removes the ability to only mark a prefix of an alloca alive/dead. We never used that capability, so we should remove the need to handle that possibility everywhere (though many key places, including stack coloring, did not actually respect this).
53 lines
2.7 KiB
LLVM
53 lines
2.7 KiB
LLVM
; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s
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; Discriminator support for calls that are defined in one line:
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; #1 void bar();
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; #2
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; #3 void foo() {
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; #4 bar();bar()/*discriminator 2*/;bar()/*discriminator 4*/;
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; #5 }
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; Function Attrs: uwtable
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define void @_Z3foov() #0 !dbg !4 {
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call void @_Z3barv(), !dbg !10
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; CHECK: call void @_Z3barv(), !dbg ![[CALL0:[0-9]+]]
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%a = alloca [100 x i8], align 16
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call void @llvm.lifetime.start.p0(ptr %a), !dbg !11
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call void @llvm.lifetime.end.p0(ptr %a), !dbg !11
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call void @_Z3barv(), !dbg !11
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; CHECK: call void @_Z3barv(), !dbg ![[CALL1:[0-9]+]]
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call void @_Z3barv(), !dbg !12
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; CHECK: call void @_Z3barv(), !dbg ![[CALL2:[0-9]+]]
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ret void, !dbg !13
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}
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declare void @_Z3barv() #1
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declare void @llvm.lifetime.start.p0(ptr nocapture) nounwind argmemonly
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declare void @llvm.lifetime.end.p0(ptr nocapture) nounwind argmemonly
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attributes #0 = { uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!llvm.ident = !{!9}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 250915) (llvm/trunk 251830)", isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, enums: !2)
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!1 = !DIFile(filename: "c.cc", directory: "/tmp")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{null}
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{!"clang version 3.8.0 (trunk 250915) (llvm/trunk 251830)"}
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!10 = !DILocation(line: 4, column: 3, scope: !4)
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!11 = !DILocation(line: 4, column: 9, scope: !4)
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!12 = !DILocation(line: 4, column: 15, scope: !4)
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!13 = !DILocation(line: 5, column: 1, scope: !4)
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; CHECK: ![[CALL1]] = !DILocation(line: 4, column: 9, scope: ![[CALL1BLOCK:[0-9]+]])
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; CHECK: ![[CALL1BLOCK]] = !DILexicalBlockFile({{.*}} discriminator: 2)
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; CHECK: ![[CALL2]] = !DILocation(line: 4, column: 15, scope: ![[CALL2BLOCK:[0-9]+]])
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; CHECK: ![[CALL2BLOCK]] = !DILexicalBlockFile({{.*}} discriminator: 4)
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