llvm-project/clang/test/CodeGen/thinlto-distributed-backend-skip.ll
Vitaly Buka 769134dac3 [ThinLTO] Allow indexing to request backend to ignore the module
Summary:
Gold plugin does not add pass to ThinLTO modules without useful symbols.
In this case ThinLTO can't create corresponding index file and some features, like CFI,
cannot be processes by backed correctly without index.
Given that we don't need the backed output we can request it to avoid
processing the module. This is implemented by this patch using new
"SkipModuleByDistributedBackend" flag.

Reviewers: pcc, tejohnson

Subscribers: mehdi_amini, inglorion, eraman, cfe-commits

Differential Revision: https://reviews.llvm.org/D42995

llvm-svn: 325411
2018-02-16 23:38:22 +00:00

22 lines
562 B
LLVM

; REQUIRES: x86-registered-target
; Check that ThinLTO backend respects "SkipModuleByDistributedBackend"
; flag which can be set by indexing.
; RUN: opt -thinlto-bc -o %t.o %s
; RUN: %clang_cc1 -triple x86_64-grtev4-linux-gnu \
; RUN: -fthinlto-index=%S/Inputs/thinlto-distributed-backend-skip.bc \
; RUN: -emit-llvm -o - -x ir %t.o | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-grtev4-linux-gnu"
; CHECK: "empty"
; CHECK: target triple =
; CHECK-NOT: @main
define i32 @main() {
entry:
ret i32 0
}