diff options
Diffstat (limited to 'llvm/test/CodeGen/RISCV/calling-conv-sext-zext.ll')
-rw-r--r-- | llvm/test/CodeGen/RISCV/calling-conv-sext-zext.ll | 497 |
1 files changed, 497 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/RISCV/calling-conv-sext-zext.ll b/llvm/test/CodeGen/RISCV/calling-conv-sext-zext.ll new file mode 100644 index 00000000000..3488f08f8fc --- /dev/null +++ b/llvm/test/CodeGen/RISCV/calling-conv-sext-zext.ll @@ -0,0 +1,497 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \ +; RUN: | FileCheck -check-prefix=RV32I %s + +define zeroext i8 @uint8_arg_to_uint8_ret(i8 zeroext %a) nounwind { +; RV32I-LABEL: uint8_arg_to_uint8_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + ret i8 %a +} + +declare void @receive_uint8(i8 zeroext) + +define void @pass_uint8_as_uint8(i8 zeroext %a) nounwind { +; RV32I-LABEL: pass_uint8_as_uint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a1, %hi(receive_uint8) +; RV32I-NEXT: addi a1, a1, %lo(receive_uint8) +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + call void @receive_uint8(i8 zeroext %a) + ret void +} + +declare zeroext i8 @return_uint8() + +define zeroext i8 @ret_callresult_uint8_as_uint8() nounwind { +; RV32I-LABEL: ret_callresult_uint8_as_uint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_uint8) +; RV32I-NEXT: addi a0, a0, %lo(return_uint8) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call zeroext i8 @return_uint8() + ret i8 %1 +} + +define signext i8 @uint8_arg_to_sint8_ret(i8 zeroext %a) nounwind { +; RV32I-LABEL: uint8_arg_to_sint8_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: slli a0, a0, 24 +; RV32I-NEXT: srai a0, a0, 24 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + ret i8 %a +} + +declare void @receive_sint8(i8 signext) + +define void @pass_uint8_as_sint8(i8 zeroext %a) nounwind { +; RV32I-LABEL: pass_uint8_as_sint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a1, %hi(receive_sint8) +; RV32I-NEXT: addi a1, a1, %lo(receive_sint8) +; RV32I-NEXT: slli a0, a0, 24 +; RV32I-NEXT: srai a0, a0, 24 +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + + call void @receive_sint8(i8 signext %a) + ret void +} + +define signext i8 @ret_callresult_uint8_as_sint8() nounwind { +; RV32I-LABEL: ret_callresult_uint8_as_sint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_uint8) +; RV32I-NEXT: addi a0, a0, %lo(return_uint8) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: slli a0, a0, 24 +; RV32I-NEXT: srai a0, a0, 24 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call zeroext i8 @return_uint8() + ret i8 %1 +} + +define signext i32 @uint8_arg_to_anyint32_ret(i8 zeroext %a) nounwind { +; RV32I-LABEL: uint8_arg_to_anyint32_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = zext i8 %a to i32 + ret i32 %1 +} + +declare void @receive_anyint32(i32 signext) + +define void @pass_uint8_as_anyint32(i8 zeroext %a) nounwind { +; RV32I-LABEL: pass_uint8_as_anyint32: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a1, %hi(receive_anyint32) +; RV32I-NEXT: addi a1, a1, %lo(receive_anyint32) +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = zext i8 %a to i32 + call void @receive_anyint32(i32 signext %1) + ret void +} + +define signext i32 @ret_callresult_uint8_as_anyint32() nounwind { +; RV32I-LABEL: ret_callresult_uint8_as_anyint32: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_uint8) +; RV32I-NEXT: addi a0, a0, %lo(return_uint8) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call zeroext i8 @return_uint8() + %2 = zext i8 %1 to i32 + ret i32 %2 +} + +define zeroext i8 @sint8_arg_to_uint8_ret(i8 signext %a) nounwind { +; RV32I-LABEL: sint8_arg_to_uint8_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: andi a0, a0, 255 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + ret i8 %a +} + +define void @pass_sint8_as_uint8(i8 signext %a) nounwind { +; RV32I-LABEL: pass_sint8_as_uint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: andi a0, a0, 255 +; RV32I-NEXT: lui a1, %hi(receive_uint8) +; RV32I-NEXT: addi a1, a1, %lo(receive_uint8) +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + call void @receive_uint8(i8 zeroext %a) + ret void +} + +declare signext i8 @return_sint8() + +define zeroext i8 @ret_callresult_sint8_as_uint8() nounwind { +; RV32I-LABEL: ret_callresult_sint8_as_uint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_sint8) +; RV32I-NEXT: addi a0, a0, %lo(return_sint8) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: andi a0, a0, 255 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call signext i8 @return_sint8() + ret i8 %1 +} + +define signext i8 @sint8_arg_to_sint8_ret(i8 signext %a) nounwind { +; RV32I-LABEL: sint8_arg_to_sint8_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + ret i8 %a +} + +define void @pass_sint8_as_sint8(i8 signext %a) nounwind { +; RV32I-LABEL: pass_sint8_as_sint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a1, %hi(receive_sint8) +; RV32I-NEXT: addi a1, a1, %lo(receive_sint8) +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + call void @receive_sint8(i8 signext %a) + ret void +} + +define signext i8 @ret_callresult_sint8_as_sint8() nounwind { +; RV32I-LABEL: ret_callresult_sint8_as_sint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_sint8) +; RV32I-NEXT: addi a0, a0, %lo(return_sint8) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call signext i8 @return_sint8() + ret i8 %1 +} + +define signext i32 @sint8_arg_to_anyint32_ret(i8 signext %a) nounwind { +; RV32I-LABEL: sint8_arg_to_anyint32_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = sext i8 %a to i32 + ret i32 %1 +} + +define void @pass_sint8_as_anyint32(i8 signext %a) nounwind { +; RV32I-LABEL: pass_sint8_as_anyint32: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a1, %hi(receive_anyint32) +; RV32I-NEXT: addi a1, a1, %lo(receive_anyint32) +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = sext i8 %a to i32 + call void @receive_anyint32(i32 signext %1) + ret void +} + +define signext i32 @ret_callresult_sint8_as_anyint32() nounwind { +; RV32I-LABEL: ret_callresult_sint8_as_anyint32: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_sint8) +; RV32I-NEXT: addi a0, a0, %lo(return_sint8) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call signext i8 @return_sint8() + %2 = sext i8 %1 to i32 + ret i32 %2 +} + +define zeroext i8 @anyint32_arg_to_uint8_ret(i32 signext %a) nounwind { +; RV32I-LABEL: anyint32_arg_to_uint8_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: andi a0, a0, 255 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = trunc i32 %a to i8 + ret i8 %1 +} + +define void @pass_anyint32_as_uint8(i32 signext %a) nounwind { +; RV32I-LABEL: pass_anyint32_as_uint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: andi a0, a0, 255 +; RV32I-NEXT: lui a1, %hi(receive_uint8) +; RV32I-NEXT: addi a1, a1, %lo(receive_uint8) +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = trunc i32 %a to i8 + call void @receive_uint8(i8 zeroext %1) + ret void +} + +declare signext i32 @return_anyint32() + +define zeroext i8 @ret_callresult_anyint32_as_uint8() nounwind { +; RV32I-LABEL: ret_callresult_anyint32_as_uint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_anyint32) +; RV32I-NEXT: addi a0, a0, %lo(return_anyint32) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: andi a0, a0, 255 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call signext i32 @return_anyint32() + %2 = trunc i32 %1 to i8 + ret i8 %2 +} + +define signext i8 @anyint32_arg_to_sint8_ret(i32 signext %a) nounwind { +; RV32I-LABEL: anyint32_arg_to_sint8_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: slli a0, a0, 24 +; RV32I-NEXT: srai a0, a0, 24 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = trunc i32 %a to i8 + ret i8 %1 +} + +define void @pass_anyint32_as_sint8(i32 signext %a) nounwind { +; RV32I-LABEL: pass_anyint32_as_sint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a1, %hi(receive_sint8) +; RV32I-NEXT: addi a1, a1, %lo(receive_sint8) +; RV32I-NEXT: slli a0, a0, 24 +; RV32I-NEXT: srai a0, a0, 24 +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = trunc i32 %a to i8 + call void @receive_sint8(i8 signext %1) + ret void +} + +define signext i8 @ret_callresult_anyint32_as_sint8() nounwind { +; RV32I-LABEL: ret_callresult_anyint32_as_sint8: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_anyint32) +; RV32I-NEXT: addi a0, a0, %lo(return_anyint32) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: slli a0, a0, 24 +; RV32I-NEXT: srai a0, a0, 24 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call signext i32 @return_anyint32() + %2 = trunc i32 %1 to i8 + ret i8 %2 +} + +define signext i32 @anyint32_arg_to_anyint32_ret(i32 signext %a) nounwind { +; RV32I-LABEL: anyint32_arg_to_anyint32_ret: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + ret i32 %a +} + +define void @pass_anyint32_as_anyint32(i32 signext %a) nounwind { +; RV32I-LABEL: pass_anyint32_as_anyint32: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a1, %hi(receive_anyint32) +; RV32I-NEXT: addi a1, a1, %lo(receive_anyint32) +; RV32I-NEXT: jalr ra, a1, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + call void @receive_anyint32(i32 signext %a) + ret void +} + +define signext i32 @ret_callresult_anyint32_as_anyint32() nounwind { +; RV32I-LABEL: ret_callresult_anyint32_as_anyint32: +; RV32I: # %bb.0: +; RV32I-NEXT: addi sp, sp, -16 +; RV32I-NEXT: sw ra, 12(sp) +; RV32I-NEXT: sw s0, 8(sp) +; RV32I-NEXT: addi s0, sp, 16 +; RV32I-NEXT: lui a0, %hi(return_anyint32) +; RV32I-NEXT: addi a0, a0, %lo(return_anyint32) +; RV32I-NEXT: jalr ra, a0, 0 +; RV32I-NEXT: lw s0, 8(sp) +; RV32I-NEXT: lw ra, 12(sp) +; RV32I-NEXT: addi sp, sp, 16 +; RV32I-NEXT: jalr zero, ra, 0 + %1 = call signext i32 @return_anyint32() + ret i32 %1 +} + |