1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
3 ; RUN: | FileCheck %s -check-prefix=RV32I
8 ; Tests that the common hi20 value (1) for the constants is used rather than
9 ; redundantly re-materialised.
10 define void @imm32_cse() nounwind {
11 ; RV32I-LABEL: imm32_cse:
13 ; RV32I-NEXT: lui a0, %hi(src)
14 ; RV32I-NEXT: lw a1, %lo(src)(a0)
15 ; RV32I-NEXT: lui a2, 1
16 ; RV32I-NEXT: addi a2, a2, 1
17 ; RV32I-NEXT: add a1, a1, a2
18 ; 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, a2
22 ; RV32I-NEXT: addi a1, a1, 1
23 ; RV32I-NEXT: sw a1, %lo(dst)(a3)
24 ; RV32I-NEXT: lw a0, %lo(src)(a0)
25 ; RV32I-NEXT: add a0, a0, a2
26 ; RV32I-NEXT: addi a0, a0, 2
27 ; RV32I-NEXT: sw a0, %lo(dst)(a3)
29 %1 = load volatile i32, i32* @src
31 store volatile i32 %2, i32* @dst
32 %3 = load volatile i32, i32* @src
34 store volatile i32 %4, i32* @dst
35 %5 = load volatile i32, i32* @src
37 store volatile i32 %6, i32* @dst