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