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; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-linux -sink-insts-to-avoid-spills | FileCheck %s -check-prefix=SINK
; Ensure that we sink copy-like instructions into loops to avoid register
; spills.
; CHECK: Spill
; SINK-NOT: Spill
%struct.A = type { i32, i32, i32, i32, i32, i32 }
define void @_Z1fPhP1A(i8* nocapture readonly %input, %struct.A* %a) {
%1 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 0
%2 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 1
%3 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 2
%4 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 3
%5 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 4
%6 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 5
br label %.backedge
.backedge:
%.0 = phi i8* [ %input, %0 ], [ %7, %.backedge.backedge ]
%7 = getelementptr inbounds i8, i8* %.0, i64 1
%8 = load i8, i8* %7, align 1
switch i8 %8, label %.backedge.backedge [
i8 0, label %9
i8 10, label %10
i8 20, label %11
i8 30, label %12
i8 40, label %13
i8 50, label %14
]
; <label>:9
tail call void @_Z6assignPj(i32* %1)
br label %.backedge.backedge
; <label>:10
tail call void @_Z6assignPj(i32* %2)
br label %.backedge.backedge
.backedge.backedge:
br label %.backedge
; <label>:11
tail call void @_Z6assignPj(i32* %3)
br label %.backedge.backedge
; <label>:12
tail call void @_Z6assignPj(i32* %4)
br label %.backedge.backedge
; <label>:13
tail call void @_Z6assignPj(i32* %5)
br label %.backedge.backedge
; <label>:14
tail call void @_Z6assignPj(i32* %6)
br label %.backedge.backedge
}
declare void @_Z6assignPj(i32*)
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