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| ; RUN: llc -march=hexagon -O3 < %s
; REQUIRES: asserts
; Test that the compiler doesn't assert when attempting to find a
; loop instruction that has been deleted, so FindLoopInstr returns
; the loop instruction from a different loop.
@g0 = external global i32
; Function Attrs: nounwind
define void @f0() #0 {
b0:
%v0 = alloca i64, align 8
%v1 = bitcast i64* %v0 to [2 x i32]*
%v2 = load i32, i32* @g0, align 4
br i1 undef, label %b1, label %b2
b1: ; preds = %b1, %b0
%v3 = phi i32 [ %v4, %b1 ], [ 64, %b0 ]
%v4 = add nsw i32 %v3, 1
%v5 = icmp slt i32 %v4, %v2
br i1 %v5, label %b1, label %b2
b2: ; preds = %b6, %b3, %b1, %b0
br label %b4
b3: ; preds = %b4
br i1 undef, label %b4, label %b2
b4: ; preds = %b3, %b2
%v6 = icmp slt i32 undef, 1
br i1 %v6, label %b3, label %b5
b5: ; preds = %b5, %b4
%v7 = phi i32 [ %v18, %b5 ], [ 1, %b4 ]
%v8 = phi i32 [ %v19, %b5 ], [ 0, %b4 ]
%v9 = add nsw i32 %v8, 0
%v10 = lshr i32 %v9, 5
%v11 = getelementptr inbounds [2 x i32], [2 x i32]* %v1, i32 0, i32 %v10
%v12 = load i32, i32* %v11, align 4
%v13 = and i32 %v9, 31
%v14 = shl i32 1, %v13
%v15 = and i32 %v12, %v14
%v16 = icmp ne i32 %v15, 0
%v17 = zext i1 %v16 to i32
%v18 = and i32 %v17, %v7
%v19 = add nsw i32 %v8, 1
%v20 = icmp eq i32 %v19, 1
br i1 %v20, label %b6, label %b5
b6: ; preds = %b5
%v21 = icmp eq i32 %v18, 0
br i1 %v21, label %b2, label %b7
b7: ; preds = %b6
tail call void @f1() #1
unreachable
}
; Function Attrs: nounwind
declare void @f1() #1
attributes #0 = { nounwind "target-cpu"="hexagonv55" }
attributes #1 = { nounwind }
|