90 lines
3.4 KiB
LLVM
90 lines
3.4 KiB
LLVM
; REQUIRES: x86
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; First ensure that the ThinLTO handling in lld handles
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; bitcode without summary sections gracefully and generates index file.
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; RUN: llvm-as %s -o %t1.o
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; RUN: llvm-as %p/Inputs/thinlto.ll -o %t2.o
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; RUN: rm -f %t3
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; RUN: ld.lld --plugin-opt=thinlto-index-only -shared %t1.o %t2.o -o %t3
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; RUN: ls %t2.o.thinlto.bc
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; RUN: not test -e %t3
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; RUN: ld.lld -shared %t1.o %t2.o -o %t3
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; RUN: llvm-nm %t3 | FileCheck %s --check-prefix=NM
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; Basic ThinLTO tests.
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; RUN: opt -module-summary %s -o %t1.o
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; RUN: opt -module-summary %p/Inputs/thinlto.ll -o %t2.o
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; RUN: opt -module-summary %p/Inputs/thinlto_empty.ll -o %t3.o
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; Ensure lld generates an index and not a binary if requested.
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; RUN: rm -f %t4
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; RUN: ld.lld --plugin-opt=thinlto-index-only -shared %t1.o %t2.o -o %t4
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; RUN: llvm-bcanalyzer -dump %t1.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND1
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; RUN: llvm-bcanalyzer -dump %t2.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND2
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; RUN: not test -e %t4
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; Ensure lld generates an index even if the file is wrapped in --start-lib/--end-lib
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; RUN: rm -f %t2.o.thinlto.bc %t4
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; RUN: ld.lld --plugin-opt=thinlto-index-only -shared %t1.o %t3.o --start-lib %t2.o --end-lib -o %t4
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; RUN: ls %t2.o.thinlto.bc
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; RUN: not test -e %t4
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; Test that LLD generates an empty index even for lazy object file that is not added to link.
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; Test LLD generates empty imports file either because of thinlto-emit-imports-files option.
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; RUN: rm -f %t1.o.thinlto.bc
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; RUN: rm -f %t1.o.imports
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; RUN: ld.lld --plugin-opt=thinlto-index-only -shared %t2.o --start-lib %t1.o --end-lib \
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; RUN: --plugin-opt=thinlto-emit-imports-files -o %t3
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; RUN: ls %t1.o.thinlto.bc
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; RUN: ls %t1.o.imports
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; Ensure lld generates an error if unable to write an empty index file
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; for lazy object file that is not added to link.
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; RUN: rm -f %t1.o.thinlto.bc
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; RUN: touch %t1.o.thinlto.bc
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; RUN: chmod 400 %t1.o.thinlto.bc
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; RUN: not ld.lld --plugin-opt=thinlto-index-only -shared %t2.o --start-lib %t1.o --end-lib \
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; RUN: -o %t3 2>&1 | FileCheck %s
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; CHECK: cannot open {{.*}}1.o.thinlto.bc: {{P|p}}ermission denied
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; RUN: rm -f %t1.o.thinlto.bc
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; NM: T f
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; The backend index for this module contains summaries from itself and
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; Inputs/thinlto.ll, as it imports from the latter.
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; BACKEND1: <MODULE_STRTAB_BLOCK
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; BACKEND1-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp{{.*}}.o'
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; BACKEND1-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp{{.*}}.o'
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; BACKEND1-NEXT: </MODULE_STRTAB_BLOCK
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; BACKEND1: <GLOBALVAL_SUMMARY_BLOCK
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; BACKEND1: <VERSION
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; BACKEND1: <FLAGS
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; BACKEND1: <VALUE_GUID op0={{1|2}} op1={{-3706093650706652785|-5300342847281564238}}
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; BACKEND1: <VALUE_GUID op0={{1|2}} op1={{-3706093650706652785|-5300342847281564238}}
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; BACKEND1: <COMBINED
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; BACKEND1: <COMBINED
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; BACKEND1: </GLOBALVAL_SUMMARY_BLOCK
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; The backend index for Input/thinlto.ll contains summaries from itself only,
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; as it does not import anything.
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; BACKEND2: <MODULE_STRTAB_BLOCK
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; BACKEND2-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp2.o'
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; BACKEND2-NEXT: </MODULE_STRTAB_BLOCK
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; BACKEND2-NEXT: <GLOBALVAL_SUMMARY_BLOCK
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; BACKEND2-NEXT: <VERSION
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; BACKEND2-NEXT: <FLAGS
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; BACKEND2-NEXT: <VALUE_GUID op0=1 op1=-5300342847281564238
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; BACKEND2-NEXT: <COMBINED
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; BACKEND2-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @g(...)
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define void @f() {
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entry:
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call void (...) @g()
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ret void
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}
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