; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mcpu=neoverse-n1 < %s | FileCheck %s target triple = "aarch64-linux-unknown" define void @add_i256(i64 %x0, i64 %x1, i64 %x2, i64 %x3, i64 %y1, i64 %y2, i64 %y3, i8* %store_addr_ptr) { ; CHECK-LABEL: add_i256: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: adds x8, x0, #1 ; CHECK-NEXT: adcs x9, x1, x4 ; CHECK-NEXT: stp x8, x9, [x7] ; CHECK-NEXT: adcs x8, x2, x5 ; CHECK-NEXT: adc x9, x3, x6 ; CHECK-NEXT: stp x8, x9, [x7, #16] ; CHECK-NEXT: ret entry: ; Build x_256 = x0 | x1 << 64 | x2 << 128 | x3 << 192 %temp = zext i64 %x0 to i256 %temp57 = zext i64 %x1 to i256 %temp58 = zext i64 %x2 to i256 %temp59 = zext i64 %x3 to i256 %temp_shifted = shl i256 %temp, 0 %temp_shifted60 = shl i256 %temp57, 64 %temp_shifted61 = shl i256 %temp58, 128 %temp_shifted62 = shl i256 %temp59, 192 %x = or i256 %temp_shifted, %temp_shifted60 %x63 = or i256 %x, %temp_shifted61 %x_big = or i256 %x63, %temp_shifted62 ; Build y_256 = 1 | y1 << 64 | y2 << 128 | y3 << 192 %temp65 = zext i64 %y1 to i256 %temp66 = zext i64 %y2 to i256 %temp67 = zext i64 %y3 to i256 %temp_shifted68 = shl i256 %temp65, 64 %temp_shifted69 = shl i256 %temp66, 128 %temp_shifted70 = shl i256 %temp67, 192 %y = or i256 1, %temp_shifted68 %y71 = or i256 %y, %temp_shifted69 %y_big = or i256 %y71, %temp_shifted70 ; z_256 = x_256 + y_256 %z_256 = add i256 %x_big, %y_big ; split z_256 into 4 64-bit registers %split_64bits = lshr i256 %z_256, 0 %z0 = trunc i256 %split_64bits to i64 %split_64bits74 = lshr i256 %z_256, 64 %z1 = trunc i256 %split_64bits74 to i64 %split_64bits76 = lshr i256 %z_256, 128 %z2 = trunc i256 %split_64bits76 to i64 %split_64bits78 = lshr i256 %z_256, 192 %z3 = trunc i256 %split_64bits78 to i64 %outptr0 = bitcast i8* %store_addr_ptr to i64* store i64 %z0, i64* %outptr0, align 4 %gep = getelementptr i8, i8* %store_addr_ptr, i64 8 %outptr1 = bitcast i8* %gep to i64* store i64 %z1, i64* %outptr1, align 4 %store_addr_ofs = getelementptr i8, i8* %store_addr_ptr, i64 16 %outptr081 = bitcast i8* %store_addr_ofs to i64* store i64 %z2, i64* %outptr081, align 4 %gep82 = getelementptr i8, i8* %store_addr_ofs, i64 8 %outptr183 = bitcast i8* %gep82 to i64* store i64 %z3, i64* %outptr183, align 4 ret void }