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67886a34d2
Summary: Most DIExpressions are empty or very simple. When they are complex, they tend to be unique, so checking them inline is reasonable. This also avoids the need for CodeGen passes to append to the llvm.dbg.mir named md node. See also PR22780, for making DIExpression not be an MDNode. Reviewers: aprantl, dexonsmith, dblaikie Subscribers: qcolombet, javed.absar, eraman, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D37075 llvm-svn: 311594
38 lines
2.1 KiB
LLVM
38 lines
2.1 KiB
LLVM
; RUN: opt -sroa %s -S | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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%foo = type { [8 x i8], [8 x i8] }
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
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define void @_ZL18findInsertLocationPN4llvm17MachineBasicBlockENS_9SlotIndexERNS_13LiveIntervalsE() {
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entry:
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%retval = alloca %foo, align 8
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call void @llvm.dbg.declare(metadata %foo* %retval, metadata !1, metadata !7), !dbg !8
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; Checks that SROA still inserts a bit_piece expression, even if it produces only one piece
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; (as long as that piece is smaller than the whole thing)
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; CHECK-NOT: call void @llvm.dbg.value
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; CHECK: call void @llvm.dbg.value(metadata %foo* undef, {{.*}}, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64)), !dbg
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; CHECK-NOT: call void @llvm.dbg.value
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%0 = bitcast %foo* %retval to i8*
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%1 = getelementptr inbounds i8, i8* %0, i64 8
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%2 = bitcast i8* %1 to %foo**
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store %foo* undef, %foo** %2, align 8
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ret void
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}
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attributes #0 = { nounwind readnone }
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!llvm.dbg.cu = !{!9}
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!llvm.module.flags = !{!0}
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!0 = !{i32 2, !"Debug Info Version", i32 3}
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!1 = !DILocalVariable(name: "I", scope: !2, file: !3, line: 947, type: !4)
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!2 = distinct !DISubprogram(name: "findInsertLocation", linkageName: "_ZL18findInsertLocationPN4llvm17MachineBasicBlockENS_9SlotIndexERNS_13LiveIntervalsE", scope: !3, file: !3, line: 937, isLocal: true, isDefinition: true, scopeLine: 938, flags: DIFlagPrototyped, isOptimized: true, unit: !9)
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!3 = !DIFile(filename: "none", directory: ".")
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!4 = !DICompositeType(tag: DW_TAG_class_type, name: "bundle_iterator<llvm::MachineInstr, llvm::ilist_iterator<llvm::MachineInstr> >", scope: !5, file: !3, line: 163, size: 128, align: 64, elements: !6, templateParams: !6, identifier: "_ZTSN4llvm17MachineBasicBlock15bundle_iteratorINS_12MachineInstrENS_14ilist_iteratorIS2_EEEE")
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!5 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "MachineBasicBlock", file: !3, line: 68, size: 1408, align: 64, identifier: "_ZTSN4llvm17MachineBasicBlockE")
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!6 = !{}
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!7 = !DIExpression()
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!8 = !DILocation(line: 947, column: 35, scope: !2)
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!9 = distinct !DICompileUnit(language: DW_LANG_Julia, file: !3)
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