| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 |
| ; RUN: llc < %s -mtriple=riscv64 | FileCheck %s |
| |
| declare void @use(i32) |
| |
| define i32 @f(i32 %x) nounwind { |
| ; CHECK-LABEL: f: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: addi sp, sp, -16 |
| ; CHECK-NEXT: sd ra, 8(sp) # 8-byte Folded Spill |
| ; CHECK-NEXT: sd s0, 0(sp) # 8-byte Folded Spill |
| ; CHECK-NEXT: mv s0, a0 |
| ; CHECK-NEXT: negw a0, a0 |
| ; CHECK-NEXT: call use |
| ; CHECK-NEXT: li a0, 4 |
| ; CHECK-NEXT: subw a0, a0, s0 |
| ; CHECK-NEXT: ld ra, 8(sp) # 8-byte Folded Reload |
| ; CHECK-NEXT: ld s0, 0(sp) # 8-byte Folded Reload |
| ; CHECK-NEXT: addi sp, sp, 16 |
| ; CHECK-NEXT: ret |
| %sub1 = sub nuw i32 0, %x |
| call void @use(i32 %sub1) |
| %sub2 = sub i32 1, %x |
| %sub3 = sub i32 3, %x |
| %mul = mul i32 %x, 1 |
| %add1 = add i32 %sub2, %mul |
| %add2 = add i32 %add1, %sub3 |
| ret i32 %add2 |
| } |