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33bf18e3ab
This is subtly different from just checking whether the destination of an edge is dead-end, because edges *internal* to dead-end regions generally still need to be treated normally. Fundamentally, such an edge must be part of a loop.
198 lines
4.2 KiB
Plaintext
198 lines
4.2 KiB
Plaintext
// RUN: %target-sil-opt -test-runner %s -o /dev/null 2>&1 | %FileCheck %s
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// CHECK-LABEL: begin running test {{.*}} on all_exit: dead_end_edges
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// CHECK-NEXT: visited all edges
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// CHECK-NEXT: end running test {{.*}} on all_exit: dead_end_edges
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sil @all_exit : $@convention(thin) () -> () {
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bb0:
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specify_test "dead_end_edges"
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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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%result = tuple ()
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return %result : $()
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}
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// CHECK-LABEL: begin running test {{.*}} on one_dead: dead_end_edges
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// CHECK-NEXT: bb0 -> bb2 (region 0; last edge)
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// CHECK-NEXT: visited all edges
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// CHECK-NEXT: end running test {{.*}} on one_dead: dead_end_edges
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sil @one_dead : $@convention(thin) () -> () {
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bb0:
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specify_test "dead_end_edges"
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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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unreachable
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bb3:
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%result = tuple ()
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return %result : $()
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}
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// CHECK-LABEL: begin running test {{.*}} on one_dead_loop: dead_end_edges
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// CHECK-NEXT: bb0 -> bb2 (region 0; last edge)
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// CHECK-NEXT: visited all edges
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// CHECK-NEXT: end running test {{.*}} on one_dead_loop: dead_end_edges
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sil @one_dead_loop : $@convention(thin) () -> () {
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bb0:
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specify_test "dead_end_edges"
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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 bb2
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bb3:
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%result = tuple ()
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return %result : $()
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}
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// CHECK-LABEL: begin running test {{.*}} on one_dead_loop_with_branch: dead_end_edges
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// CHECK-NEXT: bb0 -> bb2 (region 1; last edge)
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// CHECK-NEXT: bb3 -> bb4 (region 0; last edge)
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// CHECK-NEXT: visited all edges
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// CHECK-NEXT: end running test {{.*}} on one_dead_loop_with_branch: dead_end_edges
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sil @one_dead_loop_with_branch : $@convention(thin) () -> () {
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bb0:
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specify_test "dead_end_edges"
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cond_br undef, bb1, bb2
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bb1:
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br bb5
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bb2:
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br bb3
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bb3:
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cond_br undef, bb2, bb4
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bb4:
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unreachable
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bb5:
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%result = tuple ()
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return %result : $()
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}
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// CHECK-LABEL: begin running test {{.*}} on complicated_one: dead_end_edges
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// CHECK-NEXT: bb0 -> bb2 (region 2; last edge)
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// CHECK-NEXT: bb2 -> bb3 (region 1; last edge)
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// CHECK-NEXT: bb3 -> bb8 (region 0; more edges remain)
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// CHECK-NEXT: bb5 -> bb8 (region 0; more edges remain)
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// CHECK-NEXT: bb6 -> bb8 (region 0; more edges remain)
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// CHECK-NEXT: bb9 -> bb8 (region 0; more edges remain)
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// CHECK-NEXT: bb11 -> bb8 (region 0; last edge)
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// CHECK-NEXT: visited all edges
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// CHECK-NEXT: end running test {{.*}} on complicated_one: dead_end_edges
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sil @complicated_one : $@convention(thin) () -> () {
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bb0:
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specify_test "dead_end_edges"
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cond_br undef, bb1, bb2
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bb1:
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br bb9
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bb2:
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br bb3
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bb3:
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cond_br undef, bb4, bb8
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bb4:
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cond_br undef, bb5, bb6
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bb5:
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cond_br undef, bb8, bb3
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bb6:
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cond_br undef, bb7, bb8
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bb7:
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br bb3
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bb8:
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unreachable
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bb9:
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cond_br undef, bb8, bb10
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bb10:
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cond_br undef, bb11, bb12
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bb11:
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cond_br undef, bb9, bb8
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bb12:
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%result = tuple ()
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return %result : $()
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}
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// CHECK-LABEL: begin running test {{.*}} on trivial_dead_end: dead_end_edges
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// CHECK-NEXT: visited all edges
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// CHECK-NEXT: end running test {{.*}} on trivial_dead_end: dead_end_edges
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sil @trivial_dead_end : $@convention(thin) () -> () {
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bb0:
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specify_test "dead_end_edges"
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unreachable
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}
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// CHECK-LABEL: begin running test {{.*}} on all_dead: dead_end_edges
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// CHECK-NEXT: bb0 -> bb1 (region 1; last edge)
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// CHECK-NEXT: bb0 -> bb2 (region 2; last edge)
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// CHECK-NEXT: bb1 -> bb3 (region 0; more edges remain)
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// CHECK-NEXT: bb2 -> bb3 (region 0; last edge)
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// CHECK-NEXT: visited all edges
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// CHECK-NEXT: end running test {{.*}} on all_dead: dead_end_edges
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sil @all_dead : $@convention(thin) () -> () {
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bb0:
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specify_test "dead_end_edges"
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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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unreachable
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}
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// CHECK-LABEL: begin running test {{.*}} on parallel_into_loop: dead_end_edges
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// CHECK-NEXT: bb0 -> bb1 (region 1; last edge)
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// CHECK-NEXT: bb0 -> bb2 (region 2; last edge)
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// CHECK-NEXT: bb1 -> bb3 (region 0; more edges remain)
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// CHECK-NEXT: bb2 -> bb4 (region 0; last edge)
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// CHECK-NEXT: visited all edges
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// CHECK-NEXT: end running test {{.*}} on parallel_into_loop: dead_end_edges
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sil @parallel_into_loop : $@convention(thin) () -> () {
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bb0:
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specify_test "dead_end_edges"
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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 bb4
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bb3:
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br bb4
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bb4:
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br bb3
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}
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