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llvm-project/llvm/test/ThinLTO/X86/module_asm_glob.ll

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[ThinLTO] Don't link module level assembly when importing Module inline asm was always being linked/concatenated when running the IRLinker. This is correct for full LTO but not when we are importing for ThinLTO, as it can result in multiply defined symbols when the module asm defines a global symbol. In order to test with llvm-lto2, I had to work around PR30396, where a symbol that is defined in module assembly but defined in the LLVM IR appears twice. Added workaround to llvm-lto2 with a FIXME. Fixes PR30610. Reviewers: mehdi_amini Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D25359 llvm-svn: 284030
2016-10-13 02:39:29 +08:00
; RUN: opt -module-summary %s -o %t1.bc
; RUN: opt -module-summary %p/Inputs/module_asm.ll -o %t2.bc
; RUN: llvm-lto -thinlto-action=run -exported-symbol=main %t1.bc %t2.bc
; RUN: llvm-nm %t1.bc.thinlto.o | FileCheck %s --check-prefix=NM0
; RUN: llvm-nm %t2.bc.thinlto.o | FileCheck %s --check-prefix=NM1
llvm-lto2: Move the LTO::run() action behind a subcommand. Move LTO::run() to a "run" subcommand so that we can introduce new subcommands for testing different parts of the LTO implementation. This doesn't use llvm::cl subcommands because it doesn't appear to be currently possible to pass an argument not associated with a subcommand to a subcommand (e.g. -lto-use-new-pm, -mcpu=yonah). Differential Revision: https://reviews.llvm.org/D31410 llvm-svn: 299967
2017-04-12 02:12:00 +08:00
; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps \
llvm-lto2: Simpler workaround for PR30396. Maintain the command line resolutions as a map to a list of resolutions rather than a single resolution, and apply the resolutions in the order observed. This is not only simpler but allows us to test the scenario where the two symbols have different resolutions. Differential Revision: https://reviews.llvm.org/D27285 llvm-svn: 288288
2016-12-01 07:19:05 +08:00
; RUN: -r=%t1.bc,foo,lx \
[ThinLTO] Don't link module level assembly when importing Module inline asm was always being linked/concatenated when running the IRLinker. This is correct for full LTO but not when we are importing for ThinLTO, as it can result in multiply defined symbols when the module asm defines a global symbol. In order to test with llvm-lto2, I had to work around PR30396, where a symbol that is defined in module assembly but defined in the LLVM IR appears twice. Added workaround to llvm-lto2 with a FIXME. Fixes PR30610. Reviewers: mehdi_amini Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D25359 llvm-svn: 284030
2016-10-13 02:39:29 +08:00
; RUN: -r=%t1.bc,foo,plx \
; RUN: -r=%t1.bc,_simplefunction,pl \
; RUN: -r=%t2.bc,main,plx \
; RUN: -r=%t2.bc,_simplefunction,l
; RUN: llvm-nm %t.o.0 | FileCheck %s --check-prefix=NM0
; RUN: llvm-nm %t.o.1 | FileCheck %s --check-prefix=NM1
; NM0: T foo
; NM1-NOT: foo
Temporarily revert "For X86-64 linux and PPC64 linux align int128 to 16 bytes." until we can get better TargetMachine::isCompatibleDataLayout to compare - otherwise we can't code generate existing bitcode without a string equality data layout. This reverts commit r294702. llvm-svn: 294709
2017-02-10 12:35:32 +08:00
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
[ThinLTO] Don't link module level assembly when importing Module inline asm was always being linked/concatenated when running the IRLinker. This is correct for full LTO but not when we are importing for ThinLTO, as it can result in multiply defined symbols when the module asm defines a global symbol. In order to test with llvm-lto2, I had to work around PR30396, where a symbol that is defined in module assembly but defined in the LLVM IR appears twice. Added workaround to llvm-lto2 with a FIXME. Fixes PR30610. Reviewers: mehdi_amini Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D25359 llvm-svn: 284030
2016-10-13 02:39:29 +08:00
target triple = "x86_64-unknown-linux-gnu"
module asm "\09.text"
module asm "\09.globl\09foo"
module asm "\09.align\0916, 0x90"
module asm "\09.type\09foo,@function"
module asm "foo:"
module asm "\09ret "
module asm "\09.size\09foo, .-foo"
module asm ""
declare zeroext i16 @foo() #0
define i32 @_simplefunction() #1 {
ret i32 1
}