llvm-project/llvm/test/CodeGen/Hexagon/loop-rotate-bug.ll

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; RUN: llc -march=hexagon < %s | FileCheck %s
; CHECK: cmp.eq
; CHECK: cmp.eq
; CHECK: cmp.eq
; CHECK: cmp.eq
%s.0 = type { i8*, i32, %s.0* }
@g0 = external global %s.0**, align 4
@g1 = private global [4 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8
declare void @f0(%s.0*)
define i32 @f1() #0 {
b0:
%v0 = load i64, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @g1, i32 0, i32 0), align 8
%v1 = add i64 %v0, 1
store i64 %v1, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @g1, i32 0, i32 0), align 8
br label %b1
b1: ; preds = %b6, %b0
%v2 = phi i32 [ 0, %b0 ], [ %v27, %b6 ]
%v3 = load i64, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @g1, i32 0, i32 1), align 8
%v4 = add i64 %v3, 1
store i64 %v4, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @g1, i32 0, i32 1), align 8
%v5 = load %s.0**, %s.0*** @g0, align 4
%v6 = getelementptr inbounds %s.0*, %s.0** %v5, i32 %v2
%v7 = load %s.0*, %s.0** %v6, align 4
%v8 = icmp eq %s.0* %v7, null
br i1 %v8, label %b6, label %b2
b2: ; preds = %b1
%v9 = load i64, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @g1, i32 0, i32 2), align 8
%v10 = add i64 %v9, 1
store i64 %v10, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @g1, i32 0, i32 2), align 8
%v11 = bitcast %s.0* %v7 to %s.0*
%v12 = getelementptr inbounds %s.0, %s.0* %v11, i32 0, i32 2
%v13 = load %s.0*, %s.0** %v12, align 4
%v14 = icmp eq %s.0* %v13, null
%v15 = getelementptr inbounds %s.0, %s.0* %v11, i32 0, i32 2
br i1 %v14, label %b5, label %b3
b3: ; preds = %b2
br label %b4
b4: ; preds = %b4, %b3
%v16 = phi %s.0** [ %v25, %b4 ], [ %v15, %b3 ]
%v17 = phi %s.0* [ %v20, %b4 ], [ %v7, %b3 ]
%v18 = load i64, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @g1, i32 0, i32 3), align 8
%v19 = add i64 %v18, 1
store i64 %v19, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @g1, i32 0, i32 3), align 8
%v20 = load %s.0*, %s.0** %v16, align 4
tail call void @f0(%s.0* %v17)
%v21 = bitcast %s.0* %v20 to %s.0*
%v22 = getelementptr inbounds %s.0, %s.0* %v21, i32 0, i32 2
%v23 = load %s.0*, %s.0** %v22, align 4
%v24 = icmp eq %s.0* %v23, null
%v25 = getelementptr inbounds %s.0, %s.0* %v21, i32 0, i32 2
br i1 %v24, label %b5, label %b4
b5: ; preds = %b4, %b2
%v26 = phi %s.0* [ %v7, %b2 ], [ %v20, %b4 ]
tail call void @f0(%s.0* %v26)
br label %b6
b6: ; preds = %b5, %b1
%v27 = add nuw nsw i32 %v2, 1
%v28 = icmp eq i32 %v27, 3001
br i1 %v28, label %b7, label %b1
b7: ; preds = %b6
%v29 = load %s.0*, %s.0** bitcast (%s.0*** @g0 to %s.0**), align 4
tail call void @f0(%s.0* %v29)
ret i32 undef
}
attributes #0 = { nounwind "target-cpu"="hexagonv60" }