75 lines
2.8 KiB
LLVM
75 lines
2.8 KiB
LLVM
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; RUN: opt -hotcoldsplit -hotcoldsplit-threshold=-1 -S < %s | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.14.0"
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@c = common global i32 0, align 4
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@h = common global i32 0, align 4
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declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1
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declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1
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declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #1
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declare i32* @m()
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; CHECK-LABEL: define void @main()
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; CHECK-NEXT: %.sroa.4.i = alloca [20 x i8], align 2
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; CHECK-NEXT: %.sroa.5.i = alloca [6 x i8], align 8
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; CHECK-NEXT: %1 = bitcast [6 x i8]* %.sroa.5.i to i8*
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define void @main() #0 {
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%.sroa.4.i = alloca [20 x i8], align 2
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%.sroa.5.i = alloca [6 x i8], align 8
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%1 = bitcast [6 x i8]* %.sroa.5.i to i8*
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%2 = load i32, i32* @h, align 4, !tbaa !4
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%3 = icmp ne i32 %2, 0
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br i1 %3, label %12, label %4
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4: ; preds = %0
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%5 = call i32* @m() #3
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%.sroa.4.0..sroa_idx21.i = getelementptr inbounds [20 x i8], [20 x i8]* %.sroa.4.i, i64 0, i64 0
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call void @llvm.lifetime.start.p0i8(i64 20, i8* %.sroa.4.0..sroa_idx21.i) #3
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%.sroa.5.0..sroa_idx16.i = getelementptr inbounds [6 x i8], [6 x i8]* %.sroa.5.i, i64 0, i64 0
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call void @llvm.lifetime.start.p0i8(i64 6, i8* %.sroa.5.0..sroa_idx16.i) #3
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call void @llvm.memset.p0i8.i64(i8* align 2 %.sroa.4.0..sroa_idx21.i, i8 0, i64 20, i1 false) #3
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call void @llvm.memset.p0i8.i64(i8* align 8 %.sroa.5.0..sroa_idx16.i, i8 0, i64 6, i1 false) #3
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%6 = load i32, i32* @c, align 4, !tbaa !4
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%7 = trunc i32 %6 to i16
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call void @llvm.lifetime.end.p0i8(i64 20, i8* %.sroa.4.0..sroa_idx21.i) #3
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call void @llvm.lifetime.end.p0i8(i64 6, i8* %.sroa.5.0..sroa_idx16.i) #3
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call void @llvm.lifetime.start.p0i8(i64 6, i8* %1) #3
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call void @llvm.memset.p0i8.i64(i8* align 1 %1, i8 3, i64 6, i1 false)
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br label %8
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8: ; preds = %8, %4
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%.0.i = phi i32 [ 0, %4 ], [ %10, %8 ]
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%9 = sext i32 %.0.i to i64
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%10 = add nsw i32 %.0.i, 1
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%11 = icmp slt i32 %10, 6
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br i1 %11, label %8, label %l.exit
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l.exit: ; preds = %8
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call void @llvm.lifetime.end.p0i8(i64 6, i8* %1) #3
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br label %12
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12: ; preds = %l.exit, %0
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%13 = phi i1 [ true, %0 ], [ true, %l.exit ]
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ret void
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}
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attributes #0 = { cold }
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!llvm.module.flags = !{!0, !1, !2}
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!llvm.ident = !{!3}
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!0 = !{i32 2, !"SDK Version", [2 x i32] [i32 10, i32 14]}
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!1 = !{i32 1, !"wchar_size", i32 4}
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!2 = !{i32 7, !"PIC Level", i32 2}
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!3 = !{!"Apple clang version 11.0.0 (clang-1100.0.20.17)"}
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!4 = !{!5, !5, i64 0}
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!5 = !{!"int", !6, i64 0}
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!6 = !{!"omnipotent char", !7, i64 0}
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!7 = !{!"Simple C/C++ TBAA"}
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