Index: lld/test/ELF/lto/thinlto-cant-write-index.ll =================================================================== --- /dev/null +++ lld/test/ELF/lto/thinlto-cant-write-index.ll @@ -0,0 +1,23 @@ +; REQUIRES: x86 + +; Basic ThinLTO tests. +; RUN: opt -module-summary %s -o %t1.o +; RUN: opt -module-summary %p/Inputs/thinlto.ll -o %t2.o + +; Ensure lld generates error if unable to write to index files +; RUN: rm -f %t2.o.thinlto.bc +; RUN: touch %t2.o.thinlto.bc +; RUN: chmod 400 %t2.o.thinlto.bc +; RUN: not ld.lld -m elf_x86_64 --plugin-opt=thinlto-index-only -shared %t1.o %t2.o -o %t3 2>&1 | FileCheck %s +; CHECK: cannot open {{.*}}2.o.thinlto.bc: {{P|p}}ermission denied + +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +declare void @g(...) + +define void @f() { +entry: + call void (...) @g() + ret void +} Index: lld/test/ELF/lto/thinlto-emit-imports.ll =================================================================== --- lld/test/ELF/lto/thinlto-emit-imports.ll +++ lld/test/ELF/lto/thinlto-emit-imports.ll @@ -1,7 +1,7 @@ ; REQUIRES: x86 ; Generate summary sections and test lld handling. -; RUN: opt -module-summary %s -o %t.o +; RUN: opt -module-summary %s -o %t1.o ; RUN: opt -module-summary %p/Inputs/thinlto.ll -o %t2.o ; Include a file with an empty module summary index, to ensure that the expected @@ -10,13 +10,13 @@ ; Ensure lld generates imports files if requested for distributed backends. ; RUN: rm -f %t3.o.imports %t3.o.thinlto.bc -; RUN: ld.lld --plugin-opt=thinlto-index-only --plugin-opt=thinlto-emit-imports-files -shared %t.o %t2.o %t3.o -o %t4 +; RUN: ld.lld --plugin-opt=thinlto-index-only --plugin-opt=thinlto-emit-imports-files -shared %t1.o %t2.o %t3.o -o %t4 ; The imports file for this module contains the bitcode file for ; Inputs/thinlto.ll -; RUN: cat %t.o.imports | count 1 -; RUN: cat %t.o.imports | FileCheck %s --check-prefix=IMPORTS1 -; IMPORTS1: thinlto_emit_imports.ll.tmp2.o +; RUN: cat %t1.o.imports | count 1 +; RUN: cat %t1.o.imports | FileCheck %s --check-prefix=IMPORTS1 +; IMPORTS1: thinlto-emit-imports.ll.tmp2.o ; The imports file for Input/thinlto.ll is empty as it does not import anything. ; RUN: cat %t2.o.imports | count 0 @@ -31,17 +31,17 @@ ; RUN: rm -f %t3.o.imports ; RUN: touch %t3.o.imports ; RUN: chmod 400 %t3.o.imports -; RUN: not ld.lld -m elf_x86_64 --plugin-opt=thinlto-index-only --plugin-opt=thinlto-emit-imports-files -shared %t.o %t2.o %t3.o -o %t4 2>&1 | FileCheck %s --check-prefix=ERR +; RUN: not ld.lld -m elf_x86_64 --plugin-opt=thinlto-index-only --plugin-opt=thinlto-emit-imports-files -shared %t1.o %t2.o %t3.o -o %t4 2>&1 | FileCheck %s --check-prefix=ERR ; ERR: cannot open {{.*}}3.o.imports: {{P|p}}ermission denied ; Ensure lld doesn't generate import files when thinlto-index-only is not enabled -; RUN: rm -f %t.o.imports +; RUN: rm -f %t1.o.imports ; RUN: rm -f %t2.o.imports ; RUN: rm -f %t3.o.imports -; RUN: ld.lld -m elf_x86_64 --plugin-opt=thinlto-emit-imports-files -shared %t.o %t2.o %t3.o -o %t4 -; RUN: not ls %t.o.imports +; RUN: ld.lld -m elf_x86_64 --plugin-opt=thinlto-emit-imports-files -shared %t1.o %t2.o %t3.o -o %t4 +; RUN: not ls %t1.o.imports ; RUN: not ls %t2.o.imports -; RUN: not ls %t4.o.imports +; RUN: not ls %t3.o.imports target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" Index: lld/test/ELF/lto/thinlto-index-file.ll =================================================================== --- /dev/null +++ lld/test/ELF/lto/thinlto-index-file.ll @@ -0,0 +1,24 @@ +; REQUIRES: x86 + +; Basic ThinLTO tests. +; RUN: opt -module-summary %s -o %t1.o +; RUN: opt -module-summary %p/Inputs/thinlto.ll -o %t2.o +; RUN: opt -module-summary %p/Inputs/thinlto_empty.ll -o %t3.o + +; Ensure lld writes linked files to linked objects file +; RUN: ld.lld -m elf_x86_64 --plugin-opt=thinlto-index-only=%t.idx -shared %t1.o %t2.o %t3.o -o %t4 +; RUN: FileCheck %s < %t.idx +; CHECK: {{.*}}thinlto-index-file.ll.tmp1.o +; CHECK: {{.*}}thinlto-index-file.ll.tmp2.o +; CHECK: {{.*}}thinlto-index-file.ll.tmp3.o + +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +declare void @g(...) + +define void @f() { +entry: + call void (...) @g() + ret void +} Index: lld/test/ELF/lto/thinlto-index-only.ll =================================================================== --- /dev/null +++ lld/test/ELF/lto/thinlto-index-only.ll @@ -0,0 +1,69 @@ +; REQUIRES: x86 + +; First ensure that the ThinLTO handling in lld handles +; bitcode without summary sections gracefully and generates index file. +; RUN: llvm-as %s -o %t1.o +; RUN: llvm-as %p/Inputs/thinlto.ll -o %t2.o +; RUN: rm -f %t3 +; RUN: ld.lld -m elf_x86_64 --plugin-opt=thinlto-index-only -shared %t1.o %t2.o -o %t3 +; RUN: ls %t2.o.thinlto.bc +; RUN: not test -e %t3 +; RUN: ld.lld -m elf_x86_64 -shared %t.o %t2.o -o %t3 +; RUN: llvm-nm %t3 | FileCheck %s --check-prefix=NM + +; Basic ThinLTO tests. +; RUN: opt -module-summary %s -o %t1.o +; RUN: opt -module-summary %p/Inputs/thinlto.ll -o %t2.o +; RUN: opt -module-summary %p/Inputs/thinlto_empty.ll -o %t3.o + +; Ensure lld generates an index and not a binary if requested. +; RUN: rm -f %t4 +; RUN: ld.lld -m elf_x86_64 --plugin-opt=thinlto-index-only -shared %t1.o %t2.o -o %t4 +; RUN: llvm-bcanalyzer -dump %t1.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND1 +; RUN: llvm-bcanalyzer -dump %t2.o.thinlto.bc | FileCheck %s --check-prefix=BACKEND2 +; RUN: not test -e %t4 + +; Ensure lld generates an index even if the file is wrapped in --start-lib/--end-lib +; RUN: rm -f %t2.o.thinlto.bc +; RUN: ld.lld -m elf_x86_64 --plugin-opt=thinlto-index-only -shared %t1.o %t3.o --start-lib %t2.o --end-lib -o %t +; RUN: ls %t2.o.thinlto.bc + +; NM: T f + +; The backend index for this module contains summaries from itself and +; Inputs/thinlto.ll, as it imports from the latter. +; BACKEND1: &1 | FileCheck %s --check-prefix=IN1 -; IN1: {{.*}}thinlto.ll.tmp.o -; IN1-NEXT: {{.*}}thinlto.ll.tmp2.o -; IN1-NEXT: {{.*}}thinlto.ll.tmp4.o - -; Ensure lld generates error if unable to write to index file -; RUN: rm -f %t4.o.thinlto.bc -; RUN: touch %t4.o.thinlto.bc -; RUN: chmod 400 %t4.o.thinlto.bc -; RUN: not ld.lld -m elf_x86_64 --plugin-opt=thinlto-index-only -shared %t.o %t4.o -o %t5 2>&1 | FileCheck %s --check-prefix=ERR -; ERR: cannot open {{.*}}4.o.thinlto.bc: {{P|p}}ermission denied - -; Ensure lld doesn't generates index files when thinlto-index-only is not enabled -; RUN: rm -f %t.o.thinlto.bc -; RUN: rm -f %t2.o.thinlto.bc -; RUN: rm -f %t4.o.thinlto.bc -; RUN: ld.lld -m elf_x86_64 -shared %t.o %t2.o %t4.o -o %t5 -; RUN: not ls %t.o.thinlto.bc -; RUN: not ls %t2.o.thinlto.bc -; RUN: not ls %t4.o.thinlto.bc ; First force single-threaded mode -; RUN: rm -f %t.lto.o %t1.lto.o -; RUN: ld.lld -save-temps --thinlto-jobs=1 -shared %t.o %t2.o -o %t -; RUN: llvm-nm %t1.lto.o | FileCheck %s --check-prefix=NM1 -; RUN: llvm-nm %t2.lto.o | FileCheck %s --check-prefix=NM2 +; RUN: rm -f %t31.lto.o %t32.lto.o +; RUN: ld.lld -save-temps --thinlto-jobs=1 -shared %t1.o %t2.o -o %t3 +; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 +; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 ; Next force multi-threaded mode -; RUN: rm -f %t2.lto.o %t21.lto.o -; RUN: ld.lld -save-temps --thinlto-jobs=2 -shared %t.o %t2.o -o %t2 -; RUN: llvm-nm %t21.lto.o | FileCheck %s --check-prefix=NM1 -; RUN: llvm-nm %t22.lto.o | FileCheck %s --check-prefix=NM2 +; RUN: rm -f %t31.lto.o %t32.lto.o +; RUN: ld.lld -save-temps --thinlto-jobs=2 -shared %t1.o %t2.o -o %t3 +; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 +; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 ; Then check without --thinlto-jobs (which currently default to hardware_concurrency) ; We just check that we don't crash or fail (as it's not sure which tests are ; stable on the final output file itself. -; RUN: ld.lld -shared %t.o %t2.o -o %t2 - -; Test to ensure that thinlto-index-only with obj-path creates the file. -; RUN: rm -f %t5.o -; RUN: ld.lld --plugin-opt=thinlto-index-only --plugin-opt=obj-path=%t5.o -shared %t.o %t2.o -o %t4 -; RUN: llvm-readobj -h %t5.o | FileCheck %s --check-prefix=FORMAT -; RUN: llvm-nm %t5.o | count 0 +; RUN: ld.lld -shared %t1.o %t2.o -o %t2 -; NM: T f ; NM1: T f -; NM1-NOT: U g ; NM2: T g -; FORMAT: Format: ELF64-x86-64 - -; The backend index for this module contains summaries from itself and -; Inputs/thinlto.ll, as it imports from the latter. -; BACKEND1: