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Instead of computing GUID based on some assumption about symbol mangling rule from IRName to symbol name, lookup the IRName from all the symtabs from all the input files to see if there are any matching symbols entry provides the IRName for GUID computation. rdar://65853754 Reviewed By: mehdi_amini Differential Revision: https://reviews.llvm.org/D84803
81 lines
3.4 KiB
LLVM
81 lines
3.4 KiB
LLVM
; Do setup work for all below tests: generate bitcode and combined index
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; RUN: opt -module-summary %s -o %t.bc
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; RUN: opt -module-summary %p/Inputs/weak_resolution.ll -o %t2.bc
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; RUN: llvm-lto -thinlto-action=thinlink -o %t3.bc %t.bc %t2.bc
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; Verify that prevailing weak for linker symbol is selected across modules,
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; non-prevailing ODR are not kept when possible, but non-ODR non-prevailing
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; are not affected.
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; RUN: llvm-lto -thinlto-action=promote %t.bc -thinlto-index=%t3.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=MOD1
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; RUN: llvm-lto -thinlto-action=internalize %t.bc -thinlto-index=%t3.bc -exported-symbol=_linkoncefunc -o - | llvm-dis -o - | FileCheck %s --check-prefix=MOD1-INT
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; RUN: llvm-lto -thinlto-action=promote %t2.bc -thinlto-index=%t3.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=MOD2
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; When exported, we always preserve a linkonce
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; RUN: llvm-lto -thinlto-action=promote %t.bc -thinlto-index=%t3.bc -o - --exported-symbol=_linkonceodrfuncInSingleModule | llvm-dis -o - | FileCheck %s --check-prefix=EXPORTED
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target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.11.0"
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; Alias are resolved, but can't be turned into "available_externally"
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; MOD1: @linkonceodralias = weak_odr alias void (), void ()* @linkonceodrfuncwithalias
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; MOD2: @linkonceodralias = linkonce_odr alias void (), void ()* @linkonceodrfuncwithalias
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@linkonceodralias = linkonce_odr alias void (), void ()* @linkonceodrfuncwithalias
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; Alias are resolved, but can't be turned into "available_externally"
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; MOD1: @linkoncealias = weak alias void (), void ()* @linkoncefuncwithalias
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; MOD2: @linkoncealias = linkonce alias void (), void ()* @linkoncefuncwithalias
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@linkoncealias = linkonce alias void (), void ()* @linkoncefuncwithalias
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; Function with an alias are resolved to weak_odr in prevailing module, but
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; not optimized in non-prevailing module (illegal to have an
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; available_externally aliasee).
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; MOD1: define weak_odr void @linkonceodrfuncwithalias()
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; MOD2: define linkonce_odr void @linkonceodrfuncwithalias()
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define linkonce_odr void @linkonceodrfuncwithalias() #0 {
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entry:
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ret void
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}
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; Function with an alias are resolved to weak in prevailing module, but
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; not optimized in non-prevailing module (illegal to have an
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; available_externally aliasee).
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; MOD1: define weak void @linkoncefuncwithalias()
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; MOD2: define linkonce void @linkoncefuncwithalias()
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define linkonce void @linkoncefuncwithalias() #0 {
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entry:
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ret void
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}
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; MOD1: define weak_odr void @linkonceodrfunc()
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; MOD2: define available_externally void @linkonceodrfunc()
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define linkonce_odr void @linkonceodrfunc() #0 {
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entry:
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ret void
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}
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; MOD1: define weak void @linkoncefunc()
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; MOD1-INT: define weak void @linkoncefunc()
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; MOD2: declare void @linkoncefunc()
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define linkonce void @linkoncefunc() #0 {
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entry:
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ret void
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}
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; MOD1: define weak_odr void @weakodrfunc()
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; MOD2: define available_externally void @weakodrfunc()
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define weak_odr void @weakodrfunc() #0 {
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entry:
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ret void
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}
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; MOD1: define weak void @weakfunc()
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; MOD2: declare void @weakfunc()
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define weak void @weakfunc() #0 {
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entry:
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ret void
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}
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; MOD1: define weak_odr void @linkonceodrfuncInSingleModule()
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; MOD1-INT: define internal void @linkonceodrfuncInSingleModule()
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; EXPORTED: define weak_odr void @linkonceodrfuncInSingleModule()
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define linkonce_odr void @linkonceodrfuncInSingleModule() #0 {
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entry:
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ret void
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}
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