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
5 ; TODO: lbu and lhu should be selected to avoid the unnecessary masking.
7 @bytes = dso_local global [5 x i8] zeroinitializer, align 1
9 define dso_local i32 @test_zext_i8() nounwind {
10 ; RV32I-LABEL: test_zext_i8:
11 ; RV32I: # %bb.0: # %entry
12 ; RV32I-NEXT: lui a0, %hi(bytes)
13 ; RV32I-NEXT: addi a1, a0, %lo(bytes)
14 ; RV32I-NEXT: lbu a0, %lo(bytes)(a0)
15 ; RV32I-NEXT: lbu a1, 1(a1)
16 ; RV32I-NEXT: xori a0, a0, 136
17 ; RV32I-NEXT: xori a1, a1, 7
18 ; RV32I-NEXT: or a0, a0, a1
19 ; RV32I-NEXT: beqz a0, .LBB0_2
20 ; RV32I-NEXT: # %bb.1: # %if.then
21 ; RV32I-NEXT: li a0, 1
22 ; RV32I-NEXT: .LBB0_2: # %if.end
25 %0 = load i8, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bytes, i32 0, i32 0), align 1
26 %cmp = icmp eq i8 %0, -120
27 %1 = load i8, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bytes, i32 0, i32 1), align 1
28 %cmp3 = icmp eq i8 %1, 7
29 %or.cond = and i1 %cmp, %cmp3
30 br i1 %or.cond, label %if.end, label %if.then
39 @shorts = dso_local global [5 x i16] zeroinitializer, align 2
41 define dso_local i32 @test_zext_i16() nounwind {
42 ; RV32I-LABEL: test_zext_i16:
43 ; RV32I: # %bb.0: # %entry
44 ; RV32I-NEXT: lui a0, %hi(shorts)
45 ; RV32I-NEXT: addi a1, a0, %lo(shorts)
46 ; RV32I-NEXT: lhu a0, %lo(shorts)(a0)
47 ; RV32I-NEXT: lhu a1, 2(a1)
48 ; RV32I-NEXT: lui a2, 16
49 ; RV32I-NEXT: addi a2, a2, -120
50 ; RV32I-NEXT: xor a0, a0, a2
51 ; RV32I-NEXT: xori a1, a1, 7
52 ; RV32I-NEXT: or a0, a0, a1
53 ; RV32I-NEXT: beqz a0, .LBB1_2
54 ; RV32I-NEXT: # %bb.1: # %if.then
55 ; RV32I-NEXT: li a0, 1
56 ; RV32I-NEXT: .LBB1_2: # %if.end
59 %0 = load i16, i16* getelementptr inbounds ([5 x i16], [5 x i16]* @shorts, i32 0, i32 0), align 2
60 %cmp = icmp eq i16 %0, -120
61 %1 = load i16, i16* getelementptr inbounds ([5 x i16], [5 x i16]* @shorts, i32 0, i32 1), align 2
62 %cmp3 = icmp eq i16 %1, 7
63 %or.cond = and i1 %cmp, %cmp3
64 br i1 %or.cond, label %if.end, label %if.then