| // RUN: %clang_cc1 -O0 -triple x86_64-pc-windows-msvc -emit-llvm -fobjc-arc -fexceptions -fobjc-exceptions -fobjc-arc-exceptions -fobjc-runtime=gnustep-2.0 -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-O0 |
| // RUN: %clang_cc1 -O2 -triple x86_64-pc-windows-msvc -emit-llvm -fobjc-arc -fexceptions -fobjc-exceptions -fobjc-arc-exceptions -fobjc-runtime=gnustep-2.0 -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-O2 |
| |
| // WinEH requires funclet tokens on nounwind intrinsics if they can lower to |
| // regular function calls in the course of IR transformations. |
| // |
| // This is the case for ObjC ARC runtime intrinsics. Test that clang emits the |
| // funclet tokens for llvm.objc.* calls inside catch- and cleanup-pads and that |
| // they refer to their pad's SSA value. |
| |
| void do_something(); |
| void may_throw(id); |
| |
| void try_catch_with_objc_intrinsic() { |
| id ex; |
| @try { |
| may_throw(ex); |
| } @catch (id ex_caught) { |
| do_something(); |
| may_throw(ex_caught); |
| } |
| } |
| |
| // CHECK-LABEL: try_catch_with_objc_intrinsic |
| // |
| // CHECK: catch.dispatch: |
| // CHECK-NEXT: [[CATCHSWITCH:%[0-9]+]] = catchswitch within none [label %catch] |
| // CHECK-O0: unwind label %[[CLEANUP1:.*]] |
| // CHECK-O2: unwind to caller |
| // |
| // All calls within a catchpad must have funclet tokens that refer to it: |
| // CHECK: catch: |
| // CHECK-NEXT: [[CATCHPAD:%[0-9]+]] = catchpad within [[CATCHSWITCH]] |
| // CHECK: call |
| // CHECK: @llvm.objc.retain |
| // CHECK: [ "funclet"(token [[CATCHPAD]]) ] |
| // CHECK: invoke |
| // CHECK: do_something |
| // CHECK: [ "funclet"(token [[CATCHPAD]]) ] |
| // CHECK: unwind label %[[CLEANUP2:.*]] |
| // CHECK: invoke |
| // CHECK: may_throw |
| // CHECK: [ "funclet"(token [[CATCHPAD]]) ] |
| // CHECK: unwind label %[[CLEANUP2]] |
| // CHECK: call |
| // CHECK-O0: @llvm.objc.storeStrong |
| // CHECK-O2: @llvm.objc.release |
| // CHECK: [ "funclet"(token [[CATCHPAD]]) ] |
| // CHECK-O0: catchret from [[CATCHPAD]] to label %catchret.dest |
| // CHECK-O2: catchret from [[CATCHPAD]] to label %eh.cont |
| // |
| // In debug mode, this block exists and it's empty: |
| // CHECK-O0: catchret.dest: |
| // CHECK-O0-NEXT: br label %eh.cont |
| // |
| // CHECK: [[CLEANUP2]]: |
| // CHECK-NEXT: [[CLEANUPPAD2:%[0-9]+]] = cleanuppad within [[CATCHPAD]] |
| // CHECK: call |
| // CHECK-O0: @llvm.objc.storeStrong |
| // CHECK-O2: @llvm.objc.release |
| // CHECK: [ "funclet"(token [[CLEANUPPAD2]]) ] |
| // CHECK: cleanupret from [[CLEANUPPAD2]] |
| // CHECK-O0: unwind label %[[CLEANUP1]] |
| // CHECK-O2: unwind to caller |
| // |
| // CHECK-O0: [[CLEANUP1]]: |
| // CHECK-O0-NEXT: [[CLEANUPPAD1:%[0-9]+]] = cleanuppad within none |
| // CHECK-O0: call |
| // CHECK-O0: @llvm.objc.storeStrong |
| // CHECK-O0: [ "funclet"(token [[CLEANUPPAD1]]) ] |
| // CHECK-O0: cleanupret from [[CLEANUPPAD1]] unwind to caller |
