1 ; RUN: opt < %s -loop-rotate -licm -S | FileCheck %s 2 ; PR9604 3 4 @g_3 = global i32 0, align 4 5 @.str = private unnamed_addr constant [4 x i8] c"%d\0A\00" 6 7 define i32 @main() nounwind { 8 entry: 9 %tmp = load i32* @g_3, align 4 10 %tobool = icmp eq i32 %tmp, 0 11 br i1 %tobool, label %for.cond, label %if.then 12 13 if.then: ; preds = %entry 14 br label %for.cond 15 16 for.cond: ; preds = %for.inc10, %if.then, %entry 17 %g.0 = phi i32* [ %g.0, %for.inc10 ], [ @g_3, %entry ], [ null, %if.then ] 18 %x.0 = phi i32 [ %inc12, %for.inc10 ], [ 0, %entry ], [ 0, %if.then ] 19 %cmp = icmp slt i32 %x.0, 5 20 br i1 %cmp, label %for.cond4, label %for.end13 21 22 for.cond4: ; preds = %for.body7, %for.cond 23 %y.0 = phi i32 [ %inc, %for.body7 ], [ 0, %for.cond ] 24 %cmp6 = icmp slt i32 %y.0, 5 25 br i1 %cmp6, label %for.body7, label %for.inc10 26 27 ; CHECK: for.body7: 28 ; CHECK-NEXT: phi 29 ; CHECK-NEXT: store i32 0 30 ; CHECK-NEXT: store i32 1 31 32 for.body7: ; preds = %for.cond4 33 store i32 0, i32* @g_3, align 4 34 store i32 1, i32* %g.0, align 4 35 %inc = add nsw i32 %y.0, 1 36 br label %for.cond4 37 38 for.inc10: ; preds = %for.cond4 39 %inc12 = add nsw i32 %x.0, 1 40 br label %for.cond 41 42 for.end13: ; preds = %for.cond 43 %tmp14 = load i32* @g_3, align 4 44 %call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32 %tmp14) nounwind 45 ret i32 0 46 } 47 48 declare i32 @printf(i8* nocapture, ...) nounwind 49 50
