mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
058a6c09b9
Summary: Allow non-ODR weak/linkonce non-prevailing copies to be marked as available_externally in the index. Add support for dropping these to declarations in the backend. Reviewers: mehdi_amini, pcc Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D28806 llvm-svn: 292656
81 lines
3.5 KiB
LLVM
81 lines
3.5 KiB
LLVM
; Do setup work for all below tests: generate bitcode and combined index
|
|
; RUN: opt -module-summary %s -o %t.bc
|
|
; RUN: opt -module-summary %p/Inputs/weak_resolution.ll -o %t2.bc
|
|
; RUN: llvm-lto -thinlto-action=thinlink -o %t3.bc %t.bc %t2.bc
|
|
|
|
; Verify that prevailing weak for linker symbol is selected across modules,
|
|
; non-prevailing ODR are not kept when possible, but non-ODR non-prevailing
|
|
; are not affected.
|
|
; RUN: llvm-lto -thinlto-action=promote %t.bc -thinlto-index=%t3.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=MOD1
|
|
; RUN: llvm-lto -thinlto-action=promote %t.bc -thinlto-index=%t3.bc -exported-symbol=linkoncefunc -o - | llvm-lto -thinlto-action=internalize -thinlto-module-id=%t.bc - -thinlto-index=%t3.bc -exported-symbol=linkoncefunc -o - | llvm-dis -o - | FileCheck %s --check-prefix=MOD1-INT
|
|
; RUN: llvm-lto -thinlto-action=promote %t2.bc -thinlto-index=%t3.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=MOD2
|
|
; When exported, we always preserve a linkonce
|
|
; RUN: llvm-lto -thinlto-action=promote %t.bc -thinlto-index=%t3.bc -o - --exported-symbol=linkonceodrfuncInSingleModule | llvm-dis -o - | FileCheck %s --check-prefix=EXPORTED
|
|
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.11.0"
|
|
|
|
; Alias are resolved, but can't be turned into "available_externally"
|
|
; MOD1: @linkonceodralias = weak_odr alias void (), void ()* @linkonceodrfuncwithalias
|
|
; MOD2: @linkonceodralias = linkonce_odr alias void (), void ()* @linkonceodrfuncwithalias
|
|
@linkonceodralias = linkonce_odr alias void (), void ()* @linkonceodrfuncwithalias
|
|
|
|
; Alias are resolved, but can't be turned into "available_externally"
|
|
; MOD1: @linkoncealias = weak alias void (), void ()* @linkoncefuncwithalias
|
|
; MOD2: @linkoncealias = linkonce alias void (), void ()* @linkoncefuncwithalias
|
|
@linkoncealias = linkonce alias void (), void ()* @linkoncefuncwithalias
|
|
|
|
; Function with an alias are resolved to weak_odr in prevailing module, but
|
|
; not optimized in non-prevailing module (illegal to have an
|
|
; available_externally aliasee).
|
|
; MOD1: define weak_odr void @linkonceodrfuncwithalias()
|
|
; MOD2: define linkonce_odr void @linkonceodrfuncwithalias()
|
|
define linkonce_odr void @linkonceodrfuncwithalias() #0 {
|
|
entry:
|
|
ret void
|
|
}
|
|
|
|
; Function with an alias are resolved to weak in prevailing module, but
|
|
; not optimized in non-prevailing module (illegal to have an
|
|
; available_externally aliasee).
|
|
; MOD1: define weak void @linkoncefuncwithalias()
|
|
; MOD2: define linkonce void @linkoncefuncwithalias()
|
|
define linkonce void @linkoncefuncwithalias() #0 {
|
|
entry:
|
|
ret void
|
|
}
|
|
|
|
; MOD1: define weak_odr void @linkonceodrfunc()
|
|
; MOD2: define available_externally void @linkonceodrfunc()
|
|
define linkonce_odr void @linkonceodrfunc() #0 {
|
|
entry:
|
|
ret void
|
|
}
|
|
; MOD1: define weak void @linkoncefunc()
|
|
; MOD1-INT: define weak void @linkoncefunc()
|
|
; MOD2: declare void @linkoncefunc()
|
|
define linkonce void @linkoncefunc() #0 {
|
|
entry:
|
|
ret void
|
|
}
|
|
; MOD1: define weak_odr void @weakodrfunc()
|
|
; MOD2: define available_externally void @weakodrfunc()
|
|
define weak_odr void @weakodrfunc() #0 {
|
|
entry:
|
|
ret void
|
|
}
|
|
; MOD1: define weak void @weakfunc()
|
|
; MOD2: declare void @weakfunc()
|
|
define weak void @weakfunc() #0 {
|
|
entry:
|
|
ret void
|
|
}
|
|
|
|
; MOD1: define weak_odr void @linkonceodrfuncInSingleModule()
|
|
; MOD1-INT: define internal void @linkonceodrfuncInSingleModule()
|
|
; EXPORTED: define weak_odr void @linkonceodrfuncInSingleModule()
|
|
define linkonce_odr void @linkonceodrfuncInSingleModule() #0 {
|
|
entry:
|
|
ret void
|
|
}
|