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69 lines
2.1 KiB
Plaintext
69 lines
2.1 KiB
Plaintext
// RUN: %target-sil-opt -enable-sil-verify-all %s -mem2reg | %FileCheck %s
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import Builtin
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import Swift
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sil [ossa] @_Ts5printFT3valSi_T_ : $@convention(thin) (Int64) -> ()
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// CHECK-LABEL: sil [ossa] @liveness0 :
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// CHECK-NOT: alloc_stack
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sil [ossa] @liveness0 : $@convention(thin) (Int64) -> () {
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bb0(%0 : $Int64):
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%1 = alloc_stack $Int64, var, name "x"
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store %0 to [trivial] %1 : $*Int64
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%3 = integer_literal $Builtin.Int64, 10
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%5 = struct_extract %0 : $Int64, #Int64._value
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%6 = builtin "cmp_eq_Int64"(%5 : $Builtin.Int64, %3 : $Builtin.Int64) : $Builtin.Int1
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cond_br %6, bb1, bb5
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bb1:
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%8 = alloc_stack $Int64, var, name "y"
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%9 = integer_literal $Builtin.Int64, 20
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%10 = struct $Int64 (%9 : $Builtin.Int64)
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store %10 to [trivial] %8 : $*Int64
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%12 = integer_literal $Builtin.Int64, 3
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%14 = struct_extract %0 : $Int64, #Int64._value
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%15 = builtin "cmp_sgt_Int64"(%14 : $Builtin.Int64, %12 : $Builtin.Int64) : $Builtin.Int1
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cond_br %15, bb2, bb3
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bb2:
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%17 = integer_literal $Builtin.Int64, 0
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%18 = struct $Int64 (%17 : $Builtin.Int64)
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store %18 to [trivial] %8 : $*Int64
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br bb4
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bb3:
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%21 = integer_literal $Builtin.Int64, 2
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%22 = struct $Int64 (%21 : $Builtin.Int64)
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store %22 to [trivial] %8 : $*Int64
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br bb4
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bb4:
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// function_ref
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%25 = function_ref @_Ts5printFT3valSi_T_ : $@convention(thin) (Int64) -> ()
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%26 = load [trivial] %8 : $*Int64
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%27 = integer_literal $Builtin.Int64, 2
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%28 = integer_literal $Builtin.Int1, -1
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%30 = struct_extract %26 : $Int64, #Int64._value
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%31 = builtin "sadd_with_overflow_Int64"(%30 : $Builtin.Int64, %27 : $Builtin.Int64, %28 : $Builtin.Int1) : $(Builtin.Int64, Builtin.Int1)
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%32 = tuple_extract %31 : $(Builtin.Int64, Builtin.Int1), 0
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%33 = tuple_extract %31 : $(Builtin.Int64, Builtin.Int1), 1
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%34 = struct $Int64 (%32 : $Builtin.Int64)
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cond_fail %33 : $Builtin.Int1
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%36 = apply %25(%34) : $@convention(thin) (Int64) -> ()
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dealloc_stack %8 : $*Int64
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br bb6
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bb5:
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br bb6
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// We don't need a PHI node here because the value is dead!
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// CHECK: bb5:
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bb6:
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dealloc_stack %1 : $*Int64
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%40 = tuple ()
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return %40 : $()
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}
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// CHECK-LABEL: } // end sil function 'liveness0'
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