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      1 ; RUN: llvm-as < %s > %t1.bc
      2 ; RUN: llvm-as < %p/Inputs/common2.ll > %t2.bc
      3 
      4 ; Test that the common merging (size + alignment) is properly handled
      5 
      6 ; Client marked the "large with little alignment" one as prevailing
      7 ; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps \
      8 ; RUN:  -r %t1.bc,v,x \
      9 ; RUN:  -r %t2.bc,v,px \
     10 ; RUN:  -r %t1.bc,foo,px \
     11 ; RUN:  -r %t2.bc,bar,px
     12 ; RUN: llvm-dis < %t.o.0.0.preopt.bc | FileCheck %s --check-prefix=LARGE-PREVAILED
     13 
     14 ; Same as before, but reversing the order of the inputs
     15 ; RUN: llvm-lto2 run %t2.bc %t1.bc -o %t.o -save-temps \
     16 ; RUN:  -r %t1.bc,v,x \
     17 ; RUN:  -r %t2.bc,v,px \
     18 ; RUN:  -r %t1.bc,foo,px \
     19 ; RUN:  -r %t2.bc,bar,px
     20 ; RUN: llvm-dis < %t.o.0.0.preopt.bc | FileCheck %s --check-prefix=LARGE-PREVAILED
     21 
     22 ; Client marked the "small with large alignment" one as prevailing
     23 ; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps \
     24 ; RUN:  -r %t1.bc,v,px \
     25 ; RUN:  -r %t2.bc,v,x \
     26 ; RUN:  -r %t1.bc,foo,px \
     27 ; RUN:  -r %t2.bc,bar,px
     28 ; RUN: llvm-dis < %t.o.0.0.preopt.bc | FileCheck %s --check-prefix=SMALL-PREVAILED
     29 
     30 ; Same as before, but reversing the order of the inputs
     31 ; RUN: llvm-lto2 run %t2.bc %t1.bc -o %t.o -save-temps \
     32 ; RUN:  -r %t1.bc,v,px \
     33 ; RUN:  -r %t2.bc,v,x \
     34 ; RUN:  -r %t1.bc,foo,px \
     35 ; RUN:  -r %t2.bc,bar,px
     36 ; RUN: llvm-dis < %t.o.0.0.preopt.bc | FileCheck  %s --check-prefix=SMALL-PREVAILED
     37 
     38 
     39 ; Client didn't mark any as prevailing, we keep the first one we see as "external"
     40 ; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps \
     41 ; RUN:  -r %t1.bc,v,x \
     42 ; RUN:  -r %t2.bc,v,x \
     43 ; RUN:  -r %t1.bc,foo,px \
     44 ; RUN:  -r %t2.bc,bar,px
     45 ; RUN: llvm-dis < %t.o.0.0.preopt.bc | FileCheck  %s --check-prefix=NONE-PREVAILED1
     46 
     47 ; Same as before, but reversing the order of the inputs
     48 ; RUN: llvm-lto2 run %t2.bc %t1.bc -o %t.o -save-temps \
     49 ; RUN:  -r %t1.bc,v,x \
     50 ; RUN:  -r %t2.bc,v,x \
     51 ; RUN:  -r %t1.bc,foo,px \
     52 ; RUN:  -r %t2.bc,bar,px
     53 ; RUN: llvm-dis < %t.o.0.0.preopt.bc | FileCheck  %s --check-prefix=NONE-PREVAILED2
     54 
     55 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
     56 target triple = "x86_64-unknown-linux-gnu"
     57 
     58 @v = common global i8 0, align 8
     59 
     60 ; LARGE-PREVAILED: @v = common global i16 0, align 8
     61 ; SMALL-PREVAILED: @v = common global [2 x i8] zeroinitializer, align 8
     62 ; BOTH-PREVAILED1: @v = common global i16 0, align 8
     63 ; BOTH-PREVAILED2: common global [2 x i8] zeroinitializer, align 8
     64 ; In this case the first is kept as external
     65 ; NONE-PREVAILED1: @v = external global i8, align 8
     66 ; NONE-PREVAILED2: @v = external global i16, align 4
     67 
     68 define i8 *@foo() {
     69  ret i8 *@v
     70 }
     71