| // RUN: %target-swift-frontend -emit-ir %s -verify | %FileCheck %s |
| // RUN: %target-swift-frontend -emit-ir -O %s -verify | %FileCheck %s --check-prefix=OPT |
| |
| // REQUIRES: CPU=i386 || CPU=x86_64 |
| |
| sil_stage canonical |
| |
| import Swift |
| |
| // CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc i64 @bitcast_different_size1 |
| |
| // OPT-LABEL: define{{.*}}@bitcast_different_size1(i32) |
| // OPT: tail call void asm sideeffect "", "n"(i32 0) |
| // OPT-NEXT: tail call void @llvm.trap() |
| // OPT-NEXT: unreachable |
| |
| sil @bitcast_different_size1 : $@convention(thin) (Int32) -> Int64 { |
| entry(%i : $Int32): |
| // CHECK: ret {{.*}}undef |
| // CHECK: call {{.*}}trap |
| %o = unchecked_trivial_bit_cast %i : $Int32 to $Int64 |
| return %o : $Int64 |
| } |
