1; RUN: llc %s -O0 -o - | FileCheck -check-prefix=NO-MERGE %s 2; RUN: llc %s -O1 -o - | FileCheck -check-prefix=NO-MERGE %s 3; RUN: llc %s -O1 -o - -enable-global-merge=false | FileCheck -check-prefix=NO-MERGE %s 4; RUN: llc %s -O1 -o - -enable-global-merge=true | FileCheck -check-prefix=NO-MERGE %s 5; RUN: llc %s -O3 -o - | FileCheck -check-prefix=MERGE %s 6; RUN: llc %s -O3 -o - -enable-global-merge=false | FileCheck -check-prefix=NO-MERGE %s 7; RUN: llc %s -O3 -o - -enable-global-merge=true | FileCheck -check-prefix=MERGE %s 8 9; MERGE-NOT: .zerofill __DATA,__bss,_bar,20,2 10; MERGE-NOT: .zerofill __DATA,__bss,_baz,20,2 11; MERGE-NOT: .zerofill __DATA,__bss,_foo,20,2 12; MERGE: .zerofill __DATA,__bss,__MergedGlobals,60,4 13; MERGE-NOT: .zerofill __DATA,__bss,_bar,20,2 14; MERGE-NOT: .zerofill __DATA,__bss,_baz,20,2 15; MERGE-NOT: .zerofill __DATA,__bss,_foo,20,2 16 17; NO-MERGE-NOT: .zerofill __DATA,__bss,__MergedGlobals,60,4 18; NO-MERGE: .zerofill __DATA,__bss,_bar,20,2 19; NO-MERGE: .zerofill __DATA,__bss,_baz,20,2 20; NO-MERGE: .zerofill __DATA,__bss,_foo,20,2 21; NO-MERGE-NOT: .zerofill __DATA,__bss,__MergedGlobals,60,4 22 23target 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" 24target triple = "thumbv7-apple-ios3.0.0" 25 26@bar = internal global [5 x i32] zeroinitializer, align 4 27@baz = internal global [5 x i32] zeroinitializer, align 4 28@foo = internal global [5 x i32] zeroinitializer, align 4 29 30; Function Attrs: nounwind ssp 31define internal void @initialize() #0 { 32 %1 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 33 store i32 %1, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 0), align 4, !tbaa !1 34 %2 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 35 store i32 %2, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 0), align 4, !tbaa !1 36 %3 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 37 store i32 %3, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 1), align 4, !tbaa !1 38 %4 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 39 store i32 %4, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 1), align 4, !tbaa !1 40 %5 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 41 store i32 %5, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 2), align 4, !tbaa !1 42 %6 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 43 store i32 %6, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 2), align 4, !tbaa !1 44 %7 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 45 store i32 %7, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 3), align 4, !tbaa !1 46 %8 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 47 store i32 %8, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 3), align 4, !tbaa !1 48 %9 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 49 store i32 %9, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 4), align 4, !tbaa !1 50 %10 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3 51 store i32 %10, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 4), align 4, !tbaa !1 52 ret void 53} 54 55declare i32 @calc(...) #1 56 57; Function Attrs: nounwind ssp 58define internal void @calculate() #0 { 59 %1 = load <4 x i32>, <4 x i32>* bitcast ([5 x i32]* @bar to <4 x i32>*), align 4 60 %2 = load <4 x i32>, <4 x i32>* bitcast ([5 x i32]* @baz to <4 x i32>*), align 4 61 %3 = mul <4 x i32> %2, %1 62 store <4 x i32> %3, <4 x i32>* bitcast ([5 x i32]* @foo to <4 x i32>*), align 4 63 %4 = load i32, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 4), align 4, !tbaa !1 64 %5 = load i32, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 4), align 4, !tbaa !1 65 %6 = mul nsw i32 %5, %4 66 store i32 %6, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @foo, i32 0, i32 4), align 4, !tbaa !1 67 ret void 68} 69 70; Function Attrs: nounwind readnone ssp 71define internal i32* @returnFoo() #2 { 72 ret i32* getelementptr inbounds ([5 x i32], [5 x i32]* @foo, i32 0, i32 0) 73} 74 75attributes #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" } 76attributes #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" } 77attributes #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" } 78attributes #3 = { nounwind } 79 80!llvm.ident = !{!0} 81 82!0 = !{!"LLVM version 3.4 "} 83!1 = !{!2, !2, i64 0} 84!2 = !{!"int", !3, i64 0} 85!3 = !{!"omnipotent char", !4, i64 0} 86!4 = !{!"Simple C/C++ TBAA"} 87