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72115d5fb6
Summary:
Currently llvm::SplitModule as the first step globalizes all local objects, which might not be desirable in some scenarios.
This change adds a new flag to llvm::SplitModule that uses SCC approach to search for a balanced partition without the need to externalize symbols.
Such partition might not be possible or fully balanced for a given number of partitions, and is a function of the module properties (global/local dependencies within the module).
Joint development Tobias Edler von Koch (tobias@codeaurora.org) and Sergei Larin (slarin@codeaurora.org)
Subscribers: llvm-commits, joker.eph
Differential Revision: http://reviews.llvm.org/D16124
llvm-svn: 258083
49 lines
1.1 KiB
LLVM
49 lines
1.1 KiB
LLVM
; All of the functions in this module must end up
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; in the same partition without change of scope.
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; RUN: llvm-split -j=2 -preserve-locals -o %t %s
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; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK1 %s
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; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK0 %s
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; CHECK0: declare i32 @funInternal
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; CHECK0: declare i32 @funExternal
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; CHECK0: declare i32 @funInternal2
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; CHECK0: declare i32 @funExternal2
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; All functions are in the same file.
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; Local functions are still local.
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; CHECK1: define internal i32 @funInternal
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; CHECK1: define i32 @funExternal
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; CHECK1: define internal i32 @funInternal2
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; CHECK1: define i32 @funExternal2
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@funInternalAlias = internal alias i32 (), i32 ()* @funInternal
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define internal i32 @funInternal() {
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entry:
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ret i32 0
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}
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; Direct call to local alias
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define i32 @funExternal() {
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entry:
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%x = call i32 @funInternalAlias()
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ret i32 %x
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}
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; Call to local function that calls local alias
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define internal i32 @funInternal2() {
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entry:
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%x = call i32 @funInternalAlias()
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ret i32 %x
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}
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define i32 @funExternal2() {
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entry:
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%x = call i32 @funInternal2()
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ret i32 %x
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}
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