5011b83237
Summary: Adds the following two options to lld-link: -thinlto-prefix-replace: allows replacing a prefix in paths generated for ThinLTO. This can be used to ensure index files and native object files are stored in unique directories, allowing multiple distributed ThinLTO links to proceed concurrently. -thinlto-object-suffix-replace: allows replacing a suffix in object file paths involved in ThinLTO. This allows minimized index files to be used for the thin link while storing the paths to the full bitcode files for subsequent steps (code generation and final linking). Reviewers: ruiu, tejohnson, pcc, rnk Subscribers: mehdi_amini, steven_wu, dexonsmith, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D64542 llvm-svn: 365807
51 lines
1.9 KiB
LLVM
51 lines
1.9 KiB
LLVM
; REQUIRES: x86
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; Test to make sure the thinlto-object-suffix-replace option is handled
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; correctly.
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; Generate bitcode file with summary, as well as a minimized bitcode without
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; the debug metadata for the thin link.
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; RUN: opt -thinlto-bc %s -thin-link-bitcode-file=%t1.thinlink.bc -o %t1.obj
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; First perform the thin link on the normal bitcode file, and save the
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; resulting index.
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; RUN: lld-link -thinlto-index-only -entry:main %t1.obj -out:%t3.exe
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; RUN: cp %t1.obj.thinlto.bc %t1.obj.thinlto.bc.orig
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; Next perform the thin link on the minimized bitcode file, and compare dump
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; of the resulting index to the above dump to ensure they are identical.
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; RUN: rm -f %t1.obj.thinlto.bc
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; Make sure it isn't inadvertently using the regular bitcode file.
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; RUN: rm -f %t1.obj
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; RUN: lld-link -entry:main -thinlto-index-only \
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; RUN: -thinlto-object-suffix-replace:".thinlink.bc;.obj" \
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; RUN: %t1.thinlink.bc -out:%t3.exe
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; RUN: diff %t1.obj.thinlto.bc.orig %t1.obj.thinlto.bc
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; Ensure lld generates error if suffix replace option not in 'old;new' format.
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; RUN: rm -f %t1.obj.thinlto.bc
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; RUN: not lld-link -entry:main -thinlto-index-only \
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; RUN: -thinlto-object-suffix-replace:"abc:def" %t1.thinlink.bc \
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; RUN: -out:%t3.exe 2>&1 | FileCheck %s --check-prefix=ERR1
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; ERR1: -thinlto-object-suffix-replace: expects 'old;new' format, but got abc:def
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; If filename does not end with old suffix, no suffix change should occur,
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; so ".thinlto.bc" will simply be appended to the input file name.
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; RUN: rm -f %t1.thinlink.bc.thinlto.bc
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; RUN: lld-link -entry:main -thinlto-index-only \
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; RUN: -thinlto-object-suffix-replace:".abc;.obj" %t1.thinlink.bc -out:%t3.exe
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; RUN: ls %t1.thinlink.bc.thinlto.bc
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.0.24215"
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define void @main() {
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entry:
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ret void
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}
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!llvm.dbg.cu = !{}
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!1 = !{i32 2, !"Debug Info Version", i32 3}
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!llvm.module.flags = !{!1}
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