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50 lines
1.6 KiB
LLVM
50 lines
1.6 KiB
LLVM
; RUN: opt < %s -loop-rotate -licm -S | FileCheck %s
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; PR9604
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@g_3 = global i32 0, align 4
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@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00"
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define i32 @main() nounwind {
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entry:
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%tmp = load i32, i32* @g_3, align 4
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%tobool = icmp eq i32 %tmp, 0
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br i1 %tobool, label %for.cond, label %if.then
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if.then: ; preds = %entry
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br label %for.cond
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for.cond: ; preds = %for.inc10, %if.then, %entry
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%g.0 = phi i32* [ %g.0, %for.inc10 ], [ @g_3, %entry ], [ null, %if.then ]
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%x.0 = phi i32 [ %inc12, %for.inc10 ], [ 0, %entry ], [ 0, %if.then ]
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%cmp = icmp slt i32 %x.0, 5
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br i1 %cmp, label %for.cond4, label %for.end13
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for.cond4: ; preds = %for.body7, %for.cond
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%y.0 = phi i32 [ %inc, %for.body7 ], [ 0, %for.cond ]
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%cmp6 = icmp slt i32 %y.0, 5
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br i1 %cmp6, label %for.body7, label %for.inc10
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; CHECK: for.body7:
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; CHECK-NEXT: phi
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; CHECK-NEXT: store i32 0
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; CHECK-NEXT: store i32 1
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for.body7: ; preds = %for.cond4
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store i32 0, i32* @g_3, align 4
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store i32 1, i32* %g.0, align 4
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%inc = add nsw i32 %y.0, 1
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br label %for.cond4
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for.inc10: ; preds = %for.cond4
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%inc12 = add nsw i32 %x.0, 1
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br label %for.cond
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for.end13: ; preds = %for.cond
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%tmp14 = load i32, i32* @g_3, align 4
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%call = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %tmp14) nounwind
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ret i32 0
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}
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declare i32 @printf(i8* nocapture, ...) nounwind
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