1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
# RUN: llc -mtriple=powerpc64-ibm-aix -mcpu=pwr7 -simplify-mir -verify-machineinstrs \
# RUN: -run-pass=early-ifcvt %s -o - | FileCheck %s
--- |
source_filename = "<stdin>"
define signext i32 @foo(ptr nocapture noundef %dummy) #0 {
entry:
%0 = load i32, ptr %dummy, align 4
%cmp = icmp slt i32 %0, 750
%inc = add nsw i32 %0, 1
%storemerge = select i1 %cmp, i32 %inc, i32 1
store i32 %storemerge, ptr %dummy, align 4
ret i32 0
}
attributes #0 = { "target-features"="-isel" }
...
---
name: foo
alignment: 16
tracksRegLiveness: true
registers:
- { id: 0, class: g8rc_and_g8rc_nox0 }
- { id: 1, class: gprc_and_gprc_nor0 }
- { id: 2, class: gprc_and_gprc_nor0 }
- { id: 3, class: crrc }
- { id: 4, class: gprc_and_gprc_nor0 }
- { id: 5, class: gprc }
- { id: 6, class: g8rc }
liveins:
- { reg: '$x3', virtual-reg: '%0' }
frameInfo:
maxAlignment: 1
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: foo
; CHECK: bb.0.entry:
; CHECK-NEXT: successors: %bb.1, %bb.2
; CHECK-NEXT: liveins: $x3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:g8rc_and_g8rc_nox0 = COPY $x3
; CHECK-NEXT: [[LWZ:%[0-9]+]]:gprc_and_gprc_nor0 = LWZ 0, [[COPY]] :: (load (s32) from %ir.dummy)
; CHECK-NEXT: [[ADDI:%[0-9]+]]:gprc_and_gprc_nor0 = nsw ADDI [[LWZ]], 1
; CHECK-NEXT: [[CMPWI:%[0-9]+]]:crrc = CMPWI [[LWZ]], 750
; CHECK-NEXT: [[LI:%[0-9]+]]:gprc_and_gprc_nor0 = LI 1
; CHECK-NEXT: BCC 12, [[CMPWI]], %bb.2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1.entry:
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2.entry:
; CHECK-NEXT: [[PHI:%[0-9]+]]:gprc = PHI [[LI]], %bb.1, [[ADDI]], %bb.0
; CHECK-NEXT: STW killed [[PHI]], 0, [[COPY]] :: (store (s32) into %ir.dummy)
; CHECK-NEXT: [[LI8_:%[0-9]+]]:g8rc = LI8 0
; CHECK-NEXT: $x3 = COPY [[LI8_]]
; CHECK-NEXT: BLR8 implicit $lr8, implicit $rm, implicit $x3
bb.0.entry:
successors: %bb.1, %bb.2
liveins: $x3
%0:g8rc_and_g8rc_nox0 = COPY $x3
%1:gprc_and_gprc_nor0 = LWZ 0, %0 :: (load (s32) from %ir.dummy)
%2:gprc_and_gprc_nor0 = nsw ADDI %1, 1
%3:crrc = CMPWI %1, 750
%4:gprc_and_gprc_nor0 = LI 1
BCC 12, %3, %bb.2
bb.1.entry:
bb.2.entry:
%5:gprc = PHI %4, %bb.1, %2, %bb.0
STW killed %5, 0, %0 :: (store (s32) into %ir.dummy)
%6:g8rc = LI8 0
$x3 = COPY %6
BLR8 implicit $lr8, implicit $rm, implicit $x3
...
|
