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| ; RUN: llc -march=hexagon -fp-contract=fast -enable-pipeliner < %s
; REQUIRES: asserts
; A Phi that depends on another Phi is loop carried.
define void @f0() #0 {
b0:
br label %b1
b1: ; preds = %b1, %b0
br i1 undef, label %b1, label %b2
b2: ; preds = %b1
br i1 undef, label %b3, label %b8
b3: ; preds = %b2
br i1 undef, label %b4, label %b5
b4: ; preds = %b4, %b3
%v0 = phi i32 [ %v5, %b4 ], [ 2, %b3 ]
%v1 = phi float [ %v4, %b4 ], [ undef, %b3 ]
%v2 = phi float [ %v1, %b4 ], [ undef, %b3 ]
%v3 = fsub float 0.000000e+00, %v2
%v4 = fadd float %v3, undef
%v5 = add nsw i32 %v0, 1
%v6 = icmp eq i32 %v5, undef
br i1 %v6, label %b5, label %b4
b5: ; preds = %b4, %b3
%v7 = phi float [ undef, %b3 ], [ %v1, %b4 ]
br i1 false, label %b6, label %b7
b6: ; preds = %b5
br label %b7
b7: ; preds = %b6, %b5
br label %b9
b8: ; preds = %b2
ret void
b9: ; preds = %b9, %b7
br label %b9
}
attributes #0 = { nounwind "target-cpu"="hexagonv55" }
|