1 ; RUN: llc %s -O0 -o - | FileCheck -check-prefix=NO-MERGE %s
2 ; RUN: llc %s -O0 -o - -enable-global-merge=false | FileCheck -check-prefix=NO-MERGE %s
3 ; RUN: llc %s -O0 -o - -enable-global-merge=true | FileCheck -check-prefix=NO-MERGE %s
4 ; RUN: llc %s -O1 -o - | FileCheck -check-prefix=MERGE %s
5 ; RUN: llc %s -O1 -o - -enable-global-merge=false | FileCheck -check-prefix=NO-MERGE %s
6 ; RUN: llc %s -O1 -o - -enable-global-merge=true | FileCheck -check-prefix=MERGE %s
8 ; MERGE-NOT: .zerofill __DATA,__bss,_bar,20,2
9 ; MERGE-NOT: .zerofill __DATA,__bss,_baz,20,2
10 ; MERGE-NOT: .zerofill __DATA,__bss,_foo,20,2
11 ; MERGE: .zerofill __DATA,__bss,__MergedGlobals,60,4
12 ; MERGE-NOT: .zerofill __DATA,__bss,_bar,20,2
13 ; MERGE-NOT: .zerofill __DATA,__bss,_baz,20,2
14 ; MERGE-NOT: .zerofill __DATA,__bss,_foo,20,2
16 ; NO-MERGE-NOT: .zerofill __DATA,__bss,__MergedGlobals,60,4
17 ; NO-MERGE: .zerofill __DATA,__bss,_bar,20,2
18 ; NO-MERGE: .zerofill __DATA,__bss,_baz,20,2
19 ; NO-MERGE: .zerofill __DATA,__bss,_foo,20,2
20 ; NO-MERGE-NOT: .zerofill __DATA,__bss,__MergedGlobals,60,4
22 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
23 target triple = "thumbv7-apple-ios3.0.0"
25 @bar = internal global [5 x i32] zeroinitializer, align 4
26 @baz = internal global [5 x i32] zeroinitializer, align 4
27 @foo = internal global [5 x i32] zeroinitializer, align 4
29 ; Function Attrs: nounwind ssp
30 define internal void @initialize() #0 {
31 %1 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
32 store i32 %1, i32* getelementptr inbounds ([5 x i32]* @bar, i32 0, i32 0), align 4, !tbaa !1
33 %2 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
34 store i32 %2, i32* getelementptr inbounds ([5 x i32]* @baz, i32 0, i32 0), align 4, !tbaa !1
35 %3 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
36 store i32 %3, i32* getelementptr inbounds ([5 x i32]* @bar, i32 0, i32 1), align 4, !tbaa !1
37 %4 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
38 store i32 %4, i32* getelementptr inbounds ([5 x i32]* @baz, i32 0, i32 1), align 4, !tbaa !1
39 %5 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
40 store i32 %5, i32* getelementptr inbounds ([5 x i32]* @bar, i32 0, i32 2), align 4, !tbaa !1
41 %6 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
42 store i32 %6, i32* getelementptr inbounds ([5 x i32]* @baz, i32 0, i32 2), align 4, !tbaa !1
43 %7 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
44 store i32 %7, i32* getelementptr inbounds ([5 x i32]* @bar, i32 0, i32 3), align 4, !tbaa !1
45 %8 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
46 store i32 %8, i32* getelementptr inbounds ([5 x i32]* @baz, i32 0, i32 3), align 4, !tbaa !1
47 %9 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
48 store i32 %9, i32* getelementptr inbounds ([5 x i32]* @bar, i32 0, i32 4), align 4, !tbaa !1
49 %10 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
50 store i32 %10, i32* getelementptr inbounds ([5 x i32]* @baz, i32 0, i32 4), align 4, !tbaa !1
54 declare i32 @calc(...) #1
56 ; Function Attrs: nounwind ssp
57 define internal void @calculate() #0 {
58 %1 = load <4 x i32>* bitcast ([5 x i32]* @bar to <4 x i32>*), align 4
59 %2 = load <4 x i32>* bitcast ([5 x i32]* @baz to <4 x i32>*), align 4
60 %3 = mul <4 x i32> %2, %1
61 store <4 x i32> %3, <4 x i32>* bitcast ([5 x i32]* @foo to <4 x i32>*), align 4
62 %4 = load i32* getelementptr inbounds ([5 x i32]* @bar, i32 0, i32 4), align 4, !tbaa !1
63 %5 = load i32* getelementptr inbounds ([5 x i32]* @baz, i32 0, i32 4), align 4, !tbaa !1
64 %6 = mul nsw i32 %5, %4
65 store i32 %6, i32* getelementptr inbounds ([5 x i32]* @foo, i32 0, i32 4), align 4, !tbaa !1
69 ; Function Attrs: nounwind readnone ssp
70 define internal i32* @returnFoo() #2 {
71 ret i32* getelementptr inbounds ([5 x i32]* @foo, i32 0, i32 0)
74 attributes #0 = { nounwind ssp "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
75 attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
76 attributes #2 = { nounwind readnone ssp "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
77 attributes #3 = { nounwind }
81 !0 = metadata !{metadata !"LLVM version 3.4 "}
82 !1 = metadata !{metadata !2, metadata !2, i64 0}
83 !2 = metadata !{metadata !"int", metadata !3, i64 0}
84 !3 = metadata !{metadata !"omnipotent char", metadata !4, i64 0}
85 !4 = metadata !{metadata !"Simple C/C++ TBAA"}