Index: llvm/trunk/lib/Target/WebAssembly/WebAssemblyLateEHPrepare.cpp =================================================================== --- llvm/trunk/lib/Target/WebAssembly/WebAssemblyLateEHPrepare.cpp +++ llvm/trunk/lib/Target/WebAssembly/WebAssemblyLateEHPrepare.cpp @@ -233,6 +233,7 @@ // it. The pseudo instruction will be deleted later. bool WebAssemblyLateEHPrepare::addExceptionExtraction(MachineFunction &MF) { const auto &TII = *MF.getSubtarget().getInstrInfo(); + MachineRegisterInfo &MRI = MF.getRegInfo(); auto *EHInfo = MF.getWasmEHFuncInfo(); SmallVector ExtractInstrs; SmallVector ToDelete; @@ -339,9 +340,11 @@ WebAssembly::ClangCallTerminateFn); assert(ClangCallTerminateFn && "There is no __clang_call_terminate() function"); + unsigned Reg = MRI.createVirtualRegister(&WebAssembly::I32RegClass); + BuildMI(ElseMBB, DL, TII.get(WebAssembly::CONST_I32), Reg).addImm(0); BuildMI(ElseMBB, DL, TII.get(WebAssembly::CALL_VOID)) .addGlobalAddress(ClangCallTerminateFn) - .addImm(0); + .addReg(Reg); BuildMI(ElseMBB, DL, TII.get(WebAssembly::UNREACHABLE)); } else { Index: llvm/trunk/test/CodeGen/WebAssembly/exception.ll =================================================================== --- llvm/trunk/test/CodeGen/WebAssembly/exception.ll +++ llvm/trunk/test/CodeGen/WebAssembly/exception.ll @@ -138,7 +138,8 @@ ; CHECK: catch ; CHECK: block i32 ; CHECK: br_on_exn 0, __cpp_exception -; CHECK: call __clang_call_terminate, 0 +; CHECK: i32.const ${{.*}}=, 0 +; CHECK: call __clang_call_terminate ; CHECK: unreachable ; CHECK: end_block ; CHECK: call __clang_call_terminate