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 7 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 15 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 21 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" 24 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 28 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 51 ret void 52 } 53 54 declare i32 @calc(...) #1 55 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 66 ret void 67 } 68 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) 72 } 73 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 } 78 79 !llvm.ident = !{!0} 80 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"} 86
