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d33fbe4f07
Add a new method, DICompositeType::buildODRType, that will create or
mutate the DICompositeType for a given ODR identifier, and use it in
LLParser and BitcodeReader instead of DICompositeType::getODRType.
The logic is as follows:
- If there's no node, create one with the given arguments.
- Else, if the current node is a forward declaration and the new
arguments would create a definition, mutate the node to match the
new arguments.
- Else, return the old node.
This adds a missing feature supported by the current DITypeIdentifierMap
(which I'm slowly making redudant). The only remaining difference is
that the DITypeIdentifierMap has a "the-last-one-wins" rule, whereas
DICompositeType::buildODRType has a "the-first-one-wins" rule.
For now I'm leaving behind DICompositeType::getODRType since it has
obvious, low-level semantics that are convenient for unit testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266786 91177308-0d34-0410-b5e6-96231b3b80d8
66 lines
3.3 KiB
LLVM
66 lines
3.3 KiB
LLVM
; RUN: llvm-link -S -o - %s %S/Inputs/dicompositetype-unique.ll \
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; RUN: | FileCheck %s -check-prefix CHECK -check-prefix FORWARD
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; RUN: llvm-link -S -o - %S/Inputs/dicompositetype-unique.ll %s \
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; RUN: | FileCheck %s -check-prefix CHECK -check-prefix REVERSE
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; RUN: llvm-link -disable-debug-info-type-map -S -o - %s %S/Inputs/dicompositetype-unique.ll \
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; RUN: | FileCheck %s -check-prefix NOMAP
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; Check that the bitcode reader handles this too.
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; RUN: llvm-as -o %t1.bc <%s
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; RUN: llvm-as -o %t2.bc <%S/Inputs/dicompositetype-unique.ll
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; RUN: llvm-link -S -o - %t1.bc %t2.bc \
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; RUN: | FileCheck %s -check-prefix CHECK -check-prefix FORWARD
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; RUN: llvm-link -S -o - %t2.bc %t1.bc \
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; RUN: | FileCheck %s -check-prefix CHECK -check-prefix REVERSE
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; RUN: llvm-link -disable-debug-info-type-map -S -o - %t1.bc %t2.bc \
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; RUN: | FileCheck %s -check-prefix NOMAP
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; Check that the type map will unique two DICompositeTypes.
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; CHECK: !named = !{!0, !1, !2, !3, !0, !1, !2, !3}
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; NOMAP: !named = !{!0, !1, !2, !3, !0, !4, !5, !6}
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!named = !{!0, !1, !2, !3}
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; Check both directions.
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; CHECK: !1 = distinct !DICompositeType(
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; FORWARD-SAME: name: "T1"
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; REVERSE-SAME: name: "T2"
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; CHECK-SAME: identifier: "T"
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; CHECK-NOT: identifier: "T"
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; CHECK: !2 = distinct !DICompositeType(
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; CHECK-SAME: name: "FwdTDef"
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; CHECK-SAME: identifier: "FwdT"
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; CHECK-NOT: identifier: "FwdT"
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; CHECK: !3 = distinct !DICompositeType(
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; FORWARD-SAME: name: "BothFwdT1"
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; REVERSE-SAME: name: "BothFwdT2"
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; CHECK-SAME: identifier: "BothFwdT"
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; CHECK-NOT: identifier: "BothFwdT"
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; These types are different, so we should get both copies when there is no map.
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; NOMAP: !1 = !DICompositeType(
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; NOMAP-SAME: name: "T1"
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; NOMAP-SAME: identifier: "T"
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; NOMAP: !2 = !DICompositeType(
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; NOMAP-SAME: name: "FwdTFwd"
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; NOMAP-SAME: identifier: "FwdT"
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; NOMAP: !3 = !DICompositeType(
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; NOMAP-SAME: name: "BothFwdT1"
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; NOMAP-SAME: identifier: "BothFwdT"
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; NOMAP: !4 = !DICompositeType(
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; NOMAP-SAME: name: "T2"
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; NOMAP-SAME: identifier: "T"
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; NOMAP-NOT: identifier: "T"
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; NOMAP: !5 = !DICompositeType(
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; NOMAP-SAME: name: "FwdTDef"
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; NOMAP-SAME: identifier: "FwdT"
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; NOMAP-NOT: identifier: "FwdT"
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; NOMAP: !6 = !DICompositeType(
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; NOMAP-SAME: name: "BothFwdT2"
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; NOMAP-SAME: identifier: "BothFwdT"
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; NOMAP-NOT: identifier: "BothFwdT"
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!0 = !DIFile(filename: "abc", directory: "/path/to")
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!1 = !DICompositeType(tag: DW_TAG_class_type, name: "T1", identifier: "T", file: !0)
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!2 = !DICompositeType(tag: DW_TAG_class_type, flags: DIFlagFwdDecl, name: "FwdTFwd", identifier: "FwdT", file: !0)
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!3 = !DICompositeType(tag: DW_TAG_class_type, flags: DIFlagFwdDecl, name: "BothFwdT1", identifier: "BothFwdT", file: !0)
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