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226 lines
7.1 KiB
Plaintext
226 lines
7.1 KiB
Plaintext
// RUN: cir-opt %s --verify-roundtrip | FileCheck %s
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!u8i = !cir.int<u, 8>
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!s32i = !cir.int<s, 32>
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!void = !cir.void
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module {
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cir.global "private" constant external @_ZTIi : !cir.ptr<!u8i>
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cir.global "private" constant external @_ZTIPKc : !cir.ptr<!u8i>
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// Test cir.eh.initiate without cleanup
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cir.func @eh_initiate_basic(%arg0: !cir.ptr<!s32i>) {
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cir.br ^bb1
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^bb1:
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%eh_token = cir.eh.initiate : !cir.eh_token
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cir.br ^bb2(%eh_token : !cir.eh_token)
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^bb2(%tok: !cir.eh_token):
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cir.return
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}
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// CHECK: cir.func @eh_initiate_basic(%arg0: !cir.ptr<!s32i>) {
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// CHECK: cir.br ^bb1
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// CHECK: ^bb1:
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// CHECK: %[[TOKEN:.*]] = cir.eh.initiate : !cir.eh_token
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// CHECK: cir.br ^bb2(%[[TOKEN]] : !cir.eh_token)
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// CHECK: ^bb2(%{{.*}}: !cir.eh_token):
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// CHECK: cir.return
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// CHECK: }
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// Test cir.eh.initiate with cleanup
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cir.func @eh_initiate_cleanup(%arg0: !cir.ptr<!s32i>) {
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cir.br ^bb1
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^bb1:
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%eh_token = cir.eh.initiate cleanup : !cir.eh_token
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cir.br ^bb2(%eh_token : !cir.eh_token)
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^bb2(%tok: !cir.eh_token):
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cir.return
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}
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// CHECK: cir.func @eh_initiate_cleanup(%arg0: !cir.ptr<!s32i>) {
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// CHECK: cir.br ^bb1
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// CHECK: ^bb1:
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// CHECK: %[[TOKEN:.*]] = cir.eh.initiate cleanup : !cir.eh_token
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// CHECK: cir.br ^bb2(%[[TOKEN]] : !cir.eh_token)
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// CHECK: ^bb2(%{{.*}}: !cir.eh_token):
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// CHECK: cir.return
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// CHECK: }
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// Test cir.eh.dispatch with catch_all
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cir.func @eh_dispatch_catch_all(%eh_token: !cir.eh_token) {
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cir.eh.dispatch %eh_token : !cir.eh_token [
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catch_all : ^bb1
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]
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^bb1:
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cir.return
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}
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// CHECK: cir.func @eh_dispatch_catch_all(%arg0: !cir.eh_token) {
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// CHECK: cir.eh.dispatch %arg0 : !cir.eh_token [
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// CHECK: catch_all : ^bb1
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// CHECK: ]
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// CHECK: ^bb1:
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// CHECK: cir.return
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// CHECK: }
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// Test cir.eh.dispatch with unwind
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cir.func @eh_dispatch_unwind(%eh_token: !cir.eh_token) {
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cir.eh.dispatch %eh_token : !cir.eh_token [
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unwind : ^bb1
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]
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^bb1:
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cir.return
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}
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// CHECK: cir.func @eh_dispatch_unwind(%arg0: !cir.eh_token) {
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// CHECK: cir.eh.dispatch %arg0 : !cir.eh_token [
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// CHECK: unwind : ^bb1
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// CHECK: ]
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// CHECK: ^bb1:
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// CHECK: cir.return
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// CHECK: }
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// Test cir.eh.dispatch with type handlers and catch_all
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cir.func @eh_dispatch_types_catch_all(%eh_token: !cir.eh_token) {
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cir.eh.dispatch %eh_token : !cir.eh_token [
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catch(#cir.global_view<@_ZTIi> : !cir.ptr<!u8i>) : ^bb1,
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catch(#cir.global_view<@_ZTIPKc> : !cir.ptr<!u8i>) : ^bb2,
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catch_all : ^bb3
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]
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^bb1:
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cir.return
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^bb2:
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cir.return
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^bb3:
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cir.return
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}
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// CHECK: cir.func @eh_dispatch_types_catch_all(%arg0: !cir.eh_token) {
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// CHECK: cir.eh.dispatch %arg0 : !cir.eh_token [
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// CHECK: catch(#cir.global_view<@_ZTIi> : !cir.ptr<!u8i>) : ^bb1,
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// CHECK: catch(#cir.global_view<@_ZTIPKc> : !cir.ptr<!u8i>) : ^bb2,
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// CHECK: catch_all : ^bb3
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// CHECK: ]
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// CHECK: ^bb1:
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// CHECK: cir.return
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// CHECK: ^bb2:
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// CHECK: cir.return
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// CHECK: ^bb3:
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// CHECK: cir.return
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// CHECK: }
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// Test cir.eh.dispatch with type handlers and unwind
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cir.func @eh_dispatch_types_unwind(%eh_token: !cir.eh_token) {
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cir.eh.dispatch %eh_token : !cir.eh_token [
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catch(#cir.global_view<@_ZTIi> : !cir.ptr<!u8i>) : ^catch_int,
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unwind : ^unwind
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]
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^catch_int:
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cir.return
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^unwind:
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cir.return
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}
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// CHECK: cir.func @eh_dispatch_types_unwind(%arg0: !cir.eh_token) {
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// CHECK: cir.eh.dispatch %arg0 : !cir.eh_token [
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// CHECK: catch(#cir.global_view<@_ZTIi> : !cir.ptr<!u8i>) : ^bb1,
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// CHECK: unwind : ^bb2
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// CHECK: ]
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// CHECK: ^bb1:
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// CHECK: cir.return
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// CHECK: ^bb2:
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// CHECK: cir.return
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// CHECK: }
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// Test cir.begin_cleanup and cir.end_cleanup
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cir.func @cleanup_ops(%eh_token: !cir.eh_token) {
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%cleanup_token = cir.begin_cleanup %eh_token : !cir.eh_token -> !cir.cleanup_token
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cir.end_cleanup %cleanup_token : !cir.cleanup_token
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cir.return
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}
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// CHECK: cir.func @cleanup_ops(%arg0: !cir.eh_token) {
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// CHECK: %[[CLEANUP:.*]] = cir.begin_cleanup %arg0 : !cir.eh_token -> !cir.cleanup_token
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// CHECK: cir.end_cleanup %[[CLEANUP]] : !cir.cleanup_token
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// CHECK: cir.return
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// CHECK: }
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// Test cir.begin_catch and cir.end_catch
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cir.func @catch_ops(%eh_token: !cir.eh_token) {
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%catch_token, %exn_ptr = cir.begin_catch %eh_token : !cir.eh_token -> (!cir.catch_token, !cir.ptr<!s32i>)
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cir.end_catch %catch_token : !cir.catch_token
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cir.return
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}
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// CHECK: cir.func @catch_ops(%arg0: !cir.eh_token) {
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// CHECK: %[[CATCH:.*]], %[[EXN:.*]] = cir.begin_catch %arg0 : !cir.eh_token -> (!cir.catch_token, !cir.ptr<!s32i>)
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// CHECK: cir.end_catch %[[CATCH]] : !cir.catch_token
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// CHECK: cir.return
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// CHECK: }
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// Test cir.begin_catch with void pointer (catch all)
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cir.func @catch_all_ops(%eh_token: !cir.eh_token) {
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%catch_token, %exn_ptr = cir.begin_catch %eh_token : !cir.eh_token -> (!cir.catch_token, !cir.ptr<!void>)
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cir.end_catch %catch_token : !cir.catch_token
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cir.return
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}
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// CHECK: cir.func @catch_all_ops(%arg0: !cir.eh_token) {
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// CHECK: %[[CATCH:.*]], %[[EXN:.*]] = cir.begin_catch %arg0 : !cir.eh_token -> (!cir.catch_token, !cir.ptr<!void>)
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// CHECK: cir.end_catch %[[CATCH]] : !cir.catch_token
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// CHECK: cir.return
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// CHECK: }
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// Test complete example with try_call, eh.initiate, cleanup, and dispatch
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cir.func private @mayThrow() -> ()
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cir.func private @destructor() -> ()
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cir.func @complete_example() {
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cir.try_call @mayThrow() ^bb1, ^bb2 : () -> ()
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^bb1: // Normal return
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cir.return
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^bb2: // Exception path
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%eh_token = cir.eh.initiate cleanup : !cir.eh_token
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%cleanup_token = cir.begin_cleanup %eh_token : !cir.eh_token -> !cir.cleanup_token
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cir.call @destructor() : () -> ()
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cir.end_cleanup %cleanup_token : !cir.cleanup_token
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cir.eh.dispatch %eh_token : !cir.eh_token [
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catch(#cir.global_view<@_ZTIi> : !cir.ptr<!u8i>) : ^catch_int,
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catch_all : ^catch_all
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]
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^catch_int:
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%catch_token, %exn_ptr = cir.begin_catch %eh_token : !cir.eh_token -> (!cir.catch_token, !cir.ptr<!s32i>)
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cir.end_catch %catch_token : !cir.catch_token
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cir.return
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^catch_all:
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%catch_token2, %exn_ptr2 = cir.begin_catch %eh_token : !cir.eh_token -> (!cir.catch_token, !cir.ptr<!void>)
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cir.end_catch %catch_token2 : !cir.catch_token
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cir.return
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}
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// CHECK: cir.func @complete_example()
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// CHECK: cir.try_call @mayThrow() ^bb1, ^bb2 : () -> ()
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// CHECK: ^bb1:
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// CHECK: cir.return
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// CHECK: ^bb2:
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// CHECK: %[[EH:.*]] = cir.eh.initiate cleanup : !cir.eh_token
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// CHECK: %[[CLEANUP:.*]] = cir.begin_cleanup %[[EH]] : !cir.eh_token -> !cir.cleanup_token
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// CHECK: cir.call @destructor() : () -> ()
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// CHECK: cir.end_cleanup %[[CLEANUP]] : !cir.cleanup_token
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// CHECK: cir.eh.dispatch %[[EH]] : !cir.eh_token [
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// CHECK: catch(#cir.global_view<@_ZTIi> : !cir.ptr<!u8i>) : ^bb3,
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// CHECK: catch_all : ^bb4
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// CHECK: ]
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// CHECK: ^bb3:
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// CHECK: %[[CATCH1:.*]], %{{.*}} = cir.begin_catch %[[EH]] : !cir.eh_token -> (!cir.catch_token, !cir.ptr<!s32i>)
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// CHECK: cir.end_catch %[[CATCH1]] : !cir.catch_token
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// CHECK: cir.return
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// CHECK: ^bb4:
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// CHECK: %[[CATCH2:.*]], %{{.*}} = cir.begin_catch %[[EH]] : !cir.eh_token -> (!cir.catch_token, !cir.ptr<!void>)
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// CHECK: cir.end_catch %[[CATCH2]] : !cir.catch_token
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// CHECK: cir.return
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// CHECK: }
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}
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