| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=riscv32 -mattr=+zbb -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck %s -check-prefix=RV32ZBB |
| |
| declare i32 @llvm.riscv.orc.b.i32(i32) |
| |
| define i32 @orcb(i32 %a) nounwind { |
| ; RV32ZBB-LABEL: orcb: |
| ; RV32ZBB: # %bb.0: |
| ; RV32ZBB-NEXT: orc.b a0, a0 |
| ; RV32ZBB-NEXT: ret |
| %tmp = call i32 @llvm.riscv.orc.b.i32(i32 %a) |
| ret i32 %tmp |
| } |
| |
| ; Second and+or are redundant with the first, make sure we remove it. |
| define i32 @orcb_knownbits(i32 %a) nounwind { |
| ; RV32ZBB-LABEL: orcb_knownbits: |
| ; RV32ZBB: # %bb.0: |
| ; RV32ZBB-NEXT: lui a1, 1044480 |
| ; RV32ZBB-NEXT: and a0, a0, a1 |
| ; RV32ZBB-NEXT: lui a1, 2048 |
| ; RV32ZBB-NEXT: addi a1, a1, 1 |
| ; RV32ZBB-NEXT: or a0, a0, a1 |
| ; RV32ZBB-NEXT: orc.b a0, a0 |
| ; RV32ZBB-NEXT: ret |
| %tmp = and i32 %a, 4278190080 ; 0xFF000000 |
| %tmp2 = or i32 %tmp, 8388609 ; 0x800001 |
| %tmp3 = call i32 @llvm.riscv.orc.b.i32(i32 %tmp2) |
| %tmp4 = and i32 %tmp3, 4278190080 ; 0xFF000000 |
| %tmp5 = or i32 %tmp4, 16711935 ; 0xFF00FF |
| ret i32 %tmp5 |
| } |