xref: /llvm-project/llvm/test/CodeGen/Thumb/cmp-add-fold.ll (revision dc206be77b329b0a83414f8c9440cb8983071622)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs < %s | FileCheck --check-prefix=T1 %s
3; RUN: llc -mtriple=thumbv7m-eabi -verify-machineinstrs < %s | FileCheck --check-prefix=T2 %s
4
5define i32 @addri1(i32 %a, i32 %b) {
6; T1-LABEL: addri1:
7; T1:       @ %bb.0: @ %entry
8; T1-NEXT:    adds r0, r0, #3
9; T1-NEXT:    beq .LBB0_2
10; T1-NEXT:  @ %bb.1: @ %false
11; T1-NEXT:    movs r0, #5
12; T1-NEXT:    bx lr
13; T1-NEXT:  .LBB0_2: @ %true
14; T1-NEXT:    movs r0, #4
15; T1-NEXT:    bx lr
16;
17; T2-LABEL: addri1:
18; T2:       @ %bb.0: @ %entry
19; T2-NEXT:    adds r0, #3
20; T2-NEXT:    mov.w r0, #5
21; T2-NEXT:    it eq
22; T2-NEXT:    moveq r0, #4
23; T2-NEXT:    bx lr
24entry:
25  %c = add i32 %a, 3
26  %d = icmp eq i32 %c, 0
27  br i1 %d, label %true, label %false
28
29true:
30  ret i32 4
31
32false:
33  ret i32 5
34}
35
36define i32 @addri2(i32 %a, i32 %b) {
37; T1-LABEL: addri2:
38; T1:       @ %bb.0: @ %entry
39; T1-NEXT:    adds r0, #254
40; T1-NEXT:    beq .LBB1_2
41; T1-NEXT:  @ %bb.1: @ %false
42; T1-NEXT:    movs r0, #5
43; T1-NEXT:    bx lr
44; T1-NEXT:  .LBB1_2: @ %true
45; T1-NEXT:    movs r0, #4
46; T1-NEXT:    bx lr
47;
48; T2-LABEL: addri2:
49; T2:       @ %bb.0: @ %entry
50; T2-NEXT:    adds r0, #254
51; T2-NEXT:    mov.w r0, #5
52; T2-NEXT:    it eq
53; T2-NEXT:    moveq r0, #4
54; T2-NEXT:    bx lr
55entry:
56  %c = add i32 %a, 254
57  %d = icmp eq i32 %c, 0
58  br i1 %d, label %true, label %false
59
60true:
61  ret i32 4
62
63false:
64  ret i32 5
65}
66