[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
diff --git a/llvm/test/ThinLTO/X86/funcimport2.ll b/llvm/test/ThinLTO/X86/funcimport2.ll
index 86ce715..4ee95be 100644
--- a/llvm/test/ThinLTO/X86/funcimport2.ll
+++ b/llvm/test/ThinLTO/X86/funcimport2.ll
@@ -6,7 +6,7 @@
; RUN: -r=%t1.bc,_foo,plx \
; RUN: -r=%t2.bc,_main,plx \
; RUN: -r=%t2.bc,_foo,l
-; RUN: llvm-dis %t.o.1.3.import.bc -o - | FileCheck %s
+; RUN: llvm-dis %t.o.2.3.import.bc -o - | FileCheck %s
; CHECK: define available_externally dso_local void @foo()
; We shouldn't do any importing at -O0
@@ -16,7 +16,7 @@
; RUN: -r=%t1.bc,_foo,plx \
; RUN: -r=%t2.bc,_main,plx \
; RUN: -r=%t2.bc,_foo,l
-; RUN: llvm-dis %t.o.1.3.import.bc -o - | FileCheck %s --check-prefix=CHECKO0
+; RUN: llvm-dis %t.o.2.3.import.bc -o - | FileCheck %s --check-prefix=CHECKO0
; CHECKO0: declare dso_local void @foo(...)
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"