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 22target 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" 23target 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 30define 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 54declare i32 @calc(...) #1 55 56; Function Attrs: nounwind ssp 57define 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 70define internal i32* @returnFoo() #2 { 71 ret i32* getelementptr inbounds ([5 x i32]* @foo, i32 0, i32 0) 72} 73 74attributes #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" } 75attributes #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" } 76attributes #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" } 77attributes #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