40 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \3; RUN: | FileCheck %s -check-prefix=RV32I4 5@src = global i32 06@dst = global i32 07 8; Tests that the common hi20 value (1) for the constants is used rather than9; redundantly re-materialised.10define void @imm32_cse() nounwind {11; RV32I-LABEL: imm32_cse:12; RV32I: # %bb.0:13; RV32I-NEXT: lui a0, %hi(src)14; RV32I-NEXT: lw a1, %lo(src)(a0)15; RV32I-NEXT: lui a2, 116; RV32I-NEXT: addi a2, a2, 117; RV32I-NEXT: add a1, a1, a218; RV32I-NEXT: lui a3, %hi(dst)19; RV32I-NEXT: sw a1, %lo(dst)(a3)20; RV32I-NEXT: lw a1, %lo(src)(a0)21; RV32I-NEXT: add a1, a1, a222; RV32I-NEXT: addi a1, a1, 123; RV32I-NEXT: sw a1, %lo(dst)(a3)24; RV32I-NEXT: lw a0, %lo(src)(a0)25; RV32I-NEXT: add a0, a0, a226; RV32I-NEXT: addi a0, a0, 227; RV32I-NEXT: sw a0, %lo(dst)(a3)28; RV32I-NEXT: ret29 %1 = load volatile i32, ptr @src30 %2 = add i32 %1, 409731 store volatile i32 %2, ptr @dst32 %3 = load volatile i32, ptr @src33 %4 = add i32 %3, 409834 store volatile i32 %4, ptr @dst35 %5 = load volatile i32, ptr @src36 %6 = add i32 %5, 409937 store volatile i32 %6, ptr @dst38 ret void39}40