; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \ ; RUN: | FileCheck %s -check-prefix=RV32I @src = global i32 0 @dst = global i32 0 ; Tests that the common hi20 value (1) for the constants is used rather than ; redundantly re-materialised. define void @imm32_cse() nounwind { ; RV32I-LABEL: imm32_cse: ; RV32I: # %bb.0: ; RV32I-NEXT: lui a0, %hi(src) ; RV32I-NEXT: lw a1, %lo(src)(a0) ; RV32I-NEXT: lui a2, 1 ; RV32I-NEXT: addi a2, a2, 1 ; RV32I-NEXT: add a1, a1, a2 ; RV32I-NEXT: lui a3, %hi(dst) ; RV32I-NEXT: sw a1, %lo(dst)(a3) ; RV32I-NEXT: lw a1, %lo(src)(a0) ; RV32I-NEXT: add a1, a1, a2 ; RV32I-NEXT: addi a1, a1, 1 ; RV32I-NEXT: sw a1, %lo(dst)(a3) ; RV32I-NEXT: lw a0, %lo(src)(a0) ; RV32I-NEXT: add a0, a0, a2 ; RV32I-NEXT: addi a0, a0, 2 ; RV32I-NEXT: sw a0, %lo(dst)(a3) ; RV32I-NEXT: ret %1 = load volatile i32, i32* @src %2 = add i32 %1, 4097 store volatile i32 %2, i32* @dst %3 = load volatile i32, i32* @src %4 = add i32 %3, 4098 store volatile i32 %4, i32* @dst %5 = load volatile i32, i32* @src %6 = add i32 %5, 4099 store volatile i32 %6, i32* @dst ret void }