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a2f6e4d840
Summary: 1. Use stream 0 only for combined module. Previously if combined module was not processes ThinLTO used the stream for own output. However small changes in input, could trigger combined module and shuffle outputs making life of llvm::LTO harder. 2. Always process combined module and write output to stream 0. Processing empty combined module is cheap and allows llvm::LTO users to avoid implementing processing which is already done in llvm::LTO. Subscribers: mehdi_amini, inglorion, eraman, hiraditya Differential Revision: https://reviews.llvm.org/D41267 llvm-svn: 320905
29 lines
941 B
LLVM
29 lines
941 B
LLVM
; RUN: opt -module-summary %s -o %t1.bc
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; RUN: opt -module-summary %p/Inputs/reference_non_importable.ll -o %t2.bc
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; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps \
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; RUN: -r=%t1.bc,_foo,pxl \
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; RUN: -r=%t1.bc,_b,pxl \
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; RUN: -r=%t2.bc,_main,pxl \
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; RUN: -r=%t2.bc,_foo,xl
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target datalayout = "e-m:o-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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; We shouldn't promote the private because it has a section
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; RUN: llvm-dis < %t.o.1.2.internalize.bc | FileCheck %s --check-prefix=PROMOTE
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; PROMOTE: @a = private global i8 0, section "__TEXT,__cstring,cstring_literals"
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@a = private global i8 0, section "__TEXT,__cstring,cstring_literals"
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@b = global i8 *@a
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; We want foo to be imported in the main module!
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; RUN: llvm-dis < %t.o.2.3.import.bc | FileCheck %s --check-prefix=IMPORT
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; IMPORT: define available_externally dso_local i8** @foo()
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define i8 **@foo() {
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ret i8 **@b
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}
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