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[ThinLTO] Add a llvm-lto2 test to check that ODR type uniquing is enabled (NFC) 

This adds a test for r279532, thanks David Li for noticing :)

Recommit r279545 after committing first a dependent patch.

llvm-svn: 279551
This commit is contained in:
Mehdi Amini 2016-08-23 18:39:15 +00:00
parent e7494530b2
commit 2a1d15fad7
2 changed files with 45 additions and 0 deletions
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14
llvm/test/ThinLTO/X86/Inputs/dicompositetype-unique.ll Normal file
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
define void @foo() {
ret void
}
!named = !{!0, !1, !2, !3}
!0 = !DIFile(filename: "abc", directory: "/path/to")
!1 = !DICompositeType(tag: DW_TAG_class_type, name: "T2", identifier: "T", file: !0)
!2 = !DICompositeType(tag: DW_TAG_class_type, name: "FwdTDef", identifier: "FwdT", file: !0)
!3 = !DICompositeType(tag: DW_TAG_class_type, flags: DIFlagFwdDecl, name: "BothFwdT2", identifier: "BothFwdT", file: !0)

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llvm/test/ThinLTO/X86/dicompositetype-unique.ll Normal file
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; RUN: opt -module-summary -o %t1.bc %s
; RUN: opt -module-summary -o %t2.bc %S/Inputs/dicompositetype-unique.ll
; RUN: llvm-lto2 %t1.bc %t2.bc -o %t --save-temps \
; RUN: -r %t1.bc,_foo,lx \
; RUN: -r %t1.bc,_main,plx \
; RUN: -r %t2.bc,_foo,plx
; RUN: llvm-dis %t.0.3.import.bc -o - | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
declare void @foo()
define i32 @main() {
call void @foo()
ret i32 0
}
; Check that the type map will unique two DICompositeTypes.
; CHECK: !DICompositeType(
; CHECK-SAME: name: "T1"
; CHECK-SAME: identifier: "T"
; CHECK-NOT: T2
!named = !{!0, !1, !2, !3}
!0 = !DIFile(filename: "abc", directory: "/path/to")
!1 = !DICompositeType(tag: DW_TAG_class_type, name: "T1", identifier: "T", file: !0)
!2 = !DICompositeType(tag: DW_TAG_class_type, flags: DIFlagFwdDecl, name: "FwdTFwd", identifier: "FwdT", file: !0)
!3 = !DICompositeType(tag: DW_TAG_class_type, flags: DIFlagFwdDecl, name: "BothFwdT1", identifier: "BothFwdT", file: !0)