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72b0e155fd
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258083 91177308-0d34-0410-b5e6-96231b3b80d8
49 lines
1.3 KiB
LLVM
49 lines
1.3 KiB
LLVM
; All of the functions in this module must end up
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; in the same partition.
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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 @foo
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; CHECK0: declare i32 @baz
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; CHECK0: declare i32 @bar
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; CHECK0: declare i32 @bar2
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; CHECK1: @bla
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; CHECK1: @bla2
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; CHECK1: define internal i32 @foo
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; CHECK1: define internal i32 @baz
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; CHECK1: define i32 @bar
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; CHECK1: define i32 @bar2
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%struct.anon = type { i64, i64 }
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@bla = internal global %struct.anon { i64 1, i64 2 }, align 8
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@bla2 = internal global %struct.anon { i64 1, i64 2 }, align 8
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define internal i32 @foo() {
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entry:
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store i64 5, i64* getelementptr inbounds (%struct.anon, %struct.anon* @bla, i32 0, i32 0), align 8
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store i32 -1, i32* bitcast (i64* getelementptr inbounds (%struct.anon, %struct.anon* @bla2, i32 0, i32 1) to i32*), align 8
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ret i32 0
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}
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define internal i32 @baz() {
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entry:
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store i64 5, i64* getelementptr inbounds (%struct.anon, %struct.anon* @bla, i32 0, i32 0), align 8
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store i32 -1, i32* bitcast (i64* getelementptr inbounds (%struct.anon, %struct.anon* @bla2, i32 0, i32 1) to i32*), align 8
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ret i32 0
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}
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define i32 @bar() {
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%call = call i32 @foo()
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ret i32 0
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}
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define i32 @bar2() {
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%call = call i32 @baz()
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ret i32 0
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}
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