1 ; Check that we promote constant object in the source module and import it
2 ; even when it is referenced in some other GV initializer and/or is used
3 ; by store instructions.
4 ; RUN: opt -thinlto-bc %s -o %t1.bc
5 ; RUN: opt -thinlto-bc %p/Inputs/import-constant.ll -o %t2.bc
6 ; RUN: llvm-lto2 run -save-temps %t1.bc %t2.bc -o %t-out \
7 ; RUN: -r=%t1.bc,main,plx \
8 ; RUN: -r=%t1.bc,_Z6getObjv,l \
9 ; RUN: -r=%t2.bc,_Z6getObjv,pl \
10 ; RUN: -r=%t2.bc,val,pl \
11 ; RUN: -r=%t2.bc,outer,pl
12 ; RUN: llvm-dis %t-out.2.1.promote.bc -o - | FileCheck %s --check-prefix=PROMOTE
13 ; RUN: llvm-dis %t-out.1.3.import.bc -o - | FileCheck %s --check-prefix=IMPORT
14 ; RUN: llvm-dis %t-out.1.4.opt.bc -o - | FileCheck %s --check-prefix=OPT
16 ; Check that variable has been promoted in the source module
17 ; PROMOTE: @_ZL3Obj.llvm.{{.*}} = hidden constant %struct.S { i32 4, i32 8, i32* @val }
19 ; @outer is a write-only variable, so it's been converted to zeroinitializer.
20 ; IMPORT: @outer = internal local_unnamed_addr global %struct.Q zeroinitializer
21 ; IMPORT-NEXT: @_ZL3Obj.llvm.{{.*}} = available_externally hidden constant %struct.S { i32 4, i32 8, i32* @val }
22 ; IMPORT-NEXT: @val = external dso_local global i32
24 ; OPT: @outer = internal unnamed_addr global %struct.Q zeroinitializer
26 ; OPT: define dso_local i32 @main()
28 ; OPT-NEXT: store %struct.S* null, %struct.S** getelementptr inbounds (%struct.Q, %struct.Q* @outer, i64 0, i32 0)
29 ; OPT-NEXT: ret i32 12
31 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
32 target triple = "x86_64-unknown-linux-gnu"
34 %struct.S = type { i32, i32, i32* }
36 define dso_local i32 @main() local_unnamed_addr {
38 %call = tail call %struct.S* @_Z6getObjv()
39 %d = getelementptr inbounds %struct.S, %struct.S* %call, i64 0, i32 0
40 %0 = load i32, i32* %d, align 8
41 %v = getelementptr inbounds %struct.S, %struct.S* %call, i64 0, i32 1
42 %1 = load i32, i32* %v, align 4
43 %add = add nsw i32 %1, %0
47 declare dso_local %struct.S* @_Z6getObjv() local_unnamed_addr