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4fc1c31a27
Summary: Reapply r357931 with fixes to ThinLTO testcases and llvm-lto tool. ThinLTOCodeGenerator currently does not preserve llvm.used symbols and it can internalize them. In order to pass the necessary information to the legacy ThinLTOCodeGenerator, the input to the code generator is rewritten to be based on lto::InputFile. Now ThinLTO using the legacy LTO API will requires data layout in Module. "internalize" thinlto action in llvm-lto is updated to run both "promote" and "internalize" with the same configuration as ThinLTOCodeGenerator. The old "promote" + "internalize" option does not produce the same output as ThinLTOCodeGenerator. This fixes: PR41236 rdar://problem/49293439 Reviewers: tejohnson, pcc, kromanova, dexonsmith Reviewed By: tejohnson Subscribers: ormris, bd1976llvm, mehdi_amini, inglorion, eraman, hiraditya, jkorous, dexonsmith, arphaman, dang, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60421 llvm-svn: 358601
37 lines
2.0 KiB
LLVM
37 lines
2.0 KiB
LLVM
; Check per module hash.
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; RUN: opt -module-hash %s -o - | llvm-bcanalyzer -dump -check-hash=foo | FileCheck %s --check-prefix=MOD1
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; MOD1: <HASH op0={{[0-9]*}} op1={{[0-9]*}} op2={{[0-9]*}} op3={{[0-9]*}} op4={{[0-9]*}} (match)/>
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; RUN: opt -module-hash %p/Inputs/module_hash.ll -o - | llvm-bcanalyzer -dump -check-hash=bar | FileCheck %s --check-prefix=MOD2
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; MOD2: <HASH op0={{[0-9]*}} op1={{[0-9]*}} op2={{[0-9]*}} op3={{[0-9]*}} op4={{[0-9]*}} (match)/>
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; Check that the hash matches in the combined index.
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; First regenerate the modules with a summary
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; RUN: opt -module-hash -module-summary %s -o %t.m1.bc
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; RUN: opt -module-hash -module-summary %p/Inputs/module_hash.ll -o %t.m2.bc
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; Recover the hashes from the modules themselves.
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; RUN: llvm-bcanalyzer -dump %t.m1.bc | grep '<HASH' > %t.hash
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; RUN: llvm-bcanalyzer -dump %t.m2.bc | grep '<HASH' >> %t.hash
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; Generate the combined index and gather the hashes there.
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; RUN: llvm-lto --thinlto-action=thinlink -o - %t.m1.bc %t.m2.bc | llvm-bcanalyzer -dump | grep '<HASH ' >> %t.hash
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; Validate the output now, the hahes in the individual modules and the combined index are in the same file.
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; RUN: cat %t.hash | FileCheck %s --check-prefix=COMBINED
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; First capture the value of the hash for the two modules.
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; COMBINED: <HASH op0=[[HASH1_1:[0-9]*]] op1=[[HASH1_2:[0-9]*]] op2=[[HASH1_3:[0-9]*]] op3=[[HASH1_4:[0-9]*]] op4=[[HASH1_5:[0-9]*]]/>
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; COMBINED: <HASH op0=[[HASH2_1:[0-9]*]] op1=[[HASH2_2:[0-9]*]] op2=[[HASH2_3:[0-9]*]] op3=[[HASH2_4:[0-9]*]] op4=[[HASH2_5:[0-9]*]]/>
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; Validate against the value extracted from the combined index
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; COMBINED-DAG: <HASH abbrevid={{[0-9]*}} op0=[[HASH1_1]] op1=[[HASH1_2]] op2=[[HASH1_3]] op3=[[HASH1_4]] op4=[[HASH1_5]]/>
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; COMBINED-DAG: <HASH abbrevid={{[0-9]*}} op0=[[HASH2_1]] op1=[[HASH2_2]] op2=[[HASH2_3]] op3=[[HASH2_4]] op4=[[HASH2_5]]/>
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; Need a function for the combined index to be populated.
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define void @foo() {
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ret void
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}
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