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; 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, ptr @src
%2 = add i32 %1, 4097
store volatile i32 %2, ptr @dst
%3 = load volatile i32, ptr @src
%4 = add i32 %3, 4098
store volatile i32 %4, ptr @dst
%5 = load volatile i32, ptr @src
%6 = add i32 %5, 4099
store volatile i32 %6, ptr @dst
ret void
}
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