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; RUN: llc -march=x86-64 %s -stats -tail-merge-threshold 2 -o /dev/null |& FileCheck %s
; Test that we still do some merging if a block has more than
; tail-merge-threshold predecessors.
; CHECK: 2 branchfolding - Number of block tails merged
declare void @bar()
define void @foo(i32 %xxx) {
entry:
switch i32 %xxx, label %bb4 [
i32 0, label %bb0
i32 1, label %bb1
i32 2, label %bb2
i32 3, label %bb3
]
bb0:
call void @bar()
br label %bb5
bb1:
call void @bar()
br label %bb5
bb2:
call void @bar()
br label %bb5
bb3:
call void @bar()
br label %bb5
bb4:
call void @bar()
br label %bb5
bb5:
ret void
}
|
