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https://github.com/apple/swift.git
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102 lines
3.1 KiB
Plaintext
102 lines
3.1 KiB
Plaintext
// RUN: %target-sil-opt -enable-sil-verify-all %s -simplification -simplify-instruction=br | %FileCheck %s
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// RUN: %target-sil-opt -enable-sil-verify-all %s -onone-simplification -simplify-instruction=br -sil-print-debuginfo | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ONONE
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// REQUIRES: swift_in_compiler
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import Swift
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import Builtin
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// CHECK-LABEL: sil @merge_blocks_same_location1
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// CHECK: %0 = integer_literal $Builtin.Int64, 0
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// CHECK: fix_lifetime %0 : $Builtin.Int64
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// CHECK: return %0 : $Builtin.Int64
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// CHECK: } // end sil function 'merge_blocks_same_location1'
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sil @merge_blocks_same_location1 : $@convention(thin) () -> Builtin.Int64 {
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bb0:
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%0 = integer_literal $Builtin.Int64, 0
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br bb1(%0 : $Builtin.Int64), loc "a.swift":1:1
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bb1(%2 : $Builtin.Int64):
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fix_lifetime %2 : $Builtin.Int64, loc "a.swift":1:1
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return %2 : $Builtin.Int64
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}
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// CHECK-LABEL: sil @merge_blocks_same_location2
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// CHECK: %0 = integer_literal $Builtin.Int64, 0
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// CHECK: fix_lifetime %0 : $Builtin.Int64
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// CHECK: return %0 : $Builtin.Int64
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// CHECK: } // end sil function 'merge_blocks_same_location2'
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sil @merge_blocks_same_location2 : $@convention(thin) () -> Builtin.Int64 {
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bb0:
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%0 = integer_literal $Builtin.Int64, 0, loc "a.swift":1:1
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br bb1(%0 : $Builtin.Int64), loc "a.swift":1:1
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bb1(%2 : $Builtin.Int64):
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fix_lifetime %2 : $Builtin.Int64
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return %2 : $Builtin.Int64
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}
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// CHECK-LABEL: sil @merge_blocks_different_locations
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// CHECK: %0 = integer_literal $Builtin.Int64, 0
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// CHECK-ONONE: debug_step , loc "a.swift":2:1
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// CHECK: fix_lifetime %0 : $Builtin.Int64
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// CHECK: return %0 : $Builtin.Int64
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// CHECK: } // end sil function 'merge_blocks_different_locations'
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sil @merge_blocks_different_locations : $@convention(thin) () -> Builtin.Int64 {
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bb0:
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%0 = integer_literal $Builtin.Int64, 0, loc "a.swift":1:1
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br bb1(%0 : $Builtin.Int64), loc "a.swift":2:1
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bb1(%2 : $Builtin.Int64):
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fix_lifetime %2 : $Builtin.Int64, loc "a.swift":3:1
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return %2 : $Builtin.Int64
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}
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// CHECK-LABEL: sil @dont_merge_blocks
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// CHECK: bb1:
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// CHECK-NEXT: br bb3
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// CHECK: bb2:
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// CHECK-NEXT: br bb3
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// CHECK: } // end sil function 'dont_merge_blocks'
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sil @dont_merge_blocks : $@convention(thin) () -> () {
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bb0:
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cond_br undef, bb1, bb2
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bb1:
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br bb3
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bb2:
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br bb3
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bb3:
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%r = tuple ()
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return %r : $()
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}
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// CHECK-LABEL: sil @dont_merge_block_in_single_cycle
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// CHECK: bb1:
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// CHECK-NEXT: br bb1
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// CHECK: } // end sil function 'dont_merge_block_in_single_cycle'
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sil @dont_merge_block_in_single_cycle : $@convention(thin) () -> () {
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bb0:
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br bb1
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bb1:
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br bb1
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}
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// CHECK-LABEL: sil @dont_crash_with_unreachable_invalid_dominance
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// CHECK-NOT: bb1
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// CHECK: } // end sil function 'dont_crash_with_unreachable_invalid_dominance'
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sil @dont_crash_with_unreachable_invalid_dominance : $@convention(thin) (Builtin.Int64) -> Builtin.Int64 {
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bb0(%0 : $Builtin.Int64):
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return %0 : $Builtin.Int64
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bb1(%2 : $Builtin.Int64):
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br bb2
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bb2:
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br bb1(%2 : $Builtin.Int64)
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}
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