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llvm-project/llvm/test/ThinLTO/X86/empty-module.ll

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[LTO] Make processing of combined module more consistent Summary: 1. Use stream 0 only for combined module. Previously if combined module was not processes ThinLTO used the stream for own output. However small changes in input, could trigger combined module and shuffle outputs making life of llvm::LTO harder. 2. Always process combined module and write output to stream 0. Processing empty combined module is cheap and allows llvm::LTO users to avoid implementing processing which is already done in llvm::LTO. Subscribers: mehdi_amini, inglorion, eraman, hiraditya Differential Revision: https://reviews.llvm.org/D41267 llvm-svn: 320905
2017-12-16 10:10:00 +08:00
; RUN: opt -module-summary -o %t.bc %s
; RUN: rm -f %t2.0
Remove trailing whitespace llvm-svn: 320907
2017-12-16 10:12:35 +08:00
; RUN: llvm-lto2 run %t.bc -r %t.bc,foo,pl -o %t2 -thinlto-distributed-indexes
[LTO] Make processing of combined module more consistent Summary: 1. Use stream 0 only for combined module. Previously if combined module was not processes ThinLTO used the stream for own output. However small changes in input, could trigger combined module and shuffle outputs making life of llvm::LTO harder. 2. Always process combined module and write output to stream 0. Processing empty combined module is cheap and allows llvm::LTO users to avoid implementing processing which is already done in llvm::LTO. Subscribers: mehdi_amini, inglorion, eraman, hiraditya Differential Revision: https://reviews.llvm.org/D41267 llvm-svn: 320905
2017-12-16 10:10:00 +08:00
; RUN: llvm-readobj -h %t2.0 | FileCheck %s
[llvm-nm] Write "no symbol" output to stderr This matches the output of binutils' nm and ensures that any scripts or tools that use nm and expect empty output in case there no symbols don't break. Differential Revision: https://reviews.llvm.org/D52943 llvm-svn: 343887
2018-10-06 05:10:03 +08:00
; RUN: llvm-nm %t2.0 2>&1 | FileCheck %s -check-prefix=NO-SYMBOLS
[llvm-nm] Print an explicit "no symbols" message when an object file has no symbols Summary: GNU nm (and other nm implementations, such as "go tool nm") prints an explicit "no symbols" message when an object file has no symbols. Currently llvm-nm just doesn't print anything. Adding an explicit "no symbols" message will allow llvm-nm to be used in place of nm: some scripts and build processes use `nm <file> | grep "no symbols"` as a test to see if a file has no symbols. It will also be more familiar to anyone used to nm. That said, the format implemented here is slightly different, in that it doesn't print the tool name in the message (which IMHO is not useful to include). Demo: ``` $ for nm in nm bin/llvm-nm ; do echo "nm implementation: $nm"; $nm /tmp/foo{1,2}.o; echo; done nm implementation: nm /tmp/foo1.o: nm: /tmp/foo1.o: no symbols /tmp/foo2.o: 0000000000000000 T foo2 nm implementation: bin/llvm-nm /tmp/foo1.o: no symbols /tmp/foo2.o: 0000000000000000 T foo2 ``` Reviewers: MaskRay Reviewed By: MaskRay Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D52810 llvm-svn: 343742
2018-10-04 07:39:49 +08:00
; NO-SYMBOLS: no symbols
[LTO] Make processing of combined module more consistent Summary: 1. Use stream 0 only for combined module. Previously if combined module was not processes ThinLTO used the stream for own output. However small changes in input, could trigger combined module and shuffle outputs making life of llvm::LTO harder. 2. Always process combined module and write output to stream 0. Processing empty combined module is cheap and allows llvm::LTO users to avoid implementing processing which is already done in llvm::LTO. Subscribers: mehdi_amini, inglorion, eraman, hiraditya Differential Revision: https://reviews.llvm.org/D41267 llvm-svn: 320905
2017-12-16 10:10:00 +08:00
; CHECK: Format: ELF64-x86-64
Revert "Change the X86 datalayout to add three address spaces for 32 bit signed," This reverts commit r370083 because it caused check-lld failures on sanitizer-x86_64-linux-fast. llvm-svn: 370142
2019-08-28 09:08:54 +08:00
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
[LTO] Make processing of combined module more consistent Summary: 1. Use stream 0 only for combined module. Previously if combined module was not processes ThinLTO used the stream for own output. However small changes in input, could trigger combined module and shuffle outputs making life of llvm::LTO harder. 2. Always process combined module and write output to stream 0. Processing empty combined module is cheap and allows llvm::LTO users to avoid implementing processing which is already done in llvm::LTO. Subscribers: mehdi_amini, inglorion, eraman, hiraditya Differential Revision: https://reviews.llvm.org/D41267 llvm-svn: 320905
2017-12-16 10:10:00 +08:00
target triple = "x86_64-unknown-linux-gnu"
@foo = ifunc i32 (i32), i64 ()* @foo_ifunc
define internal i64 @foo_ifunc() {
entry:
ret i64 0
}