| ; 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 |
| } |