setcr_bc2.mir
5.12 KB
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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
# RUN: llc -verify-machineinstrs -start-before=ppc-pre-emit-peephole %s -o - | FileCheck %s
--- |
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
declare signext i32 @callee(i32 signext) local_unnamed_addr #1
define signext i32 @func(i32 signext %v) local_unnamed_addr #0 {
entry:
%call.i = tail call signext i32 @callee(i32 signext %v)
%tobool.i = icmp eq i32 %call.i, 0
br i1 %tobool.i, label %if.else.i, label %if.then.i
if.then.i: ; preds = %entry
%call2.i = tail call signext i32 @callee(i32 signext %call.i)
br label %_Z6calleei.exit
if.else.i: ; preds = %entry
%phitmp = icmp sgt i32 %v, -1
br label %_Z6calleei.exit
_Z6calleei.exit: ; preds = %if.else.i, %if.then.i
%call2.i.sink = phi i32 [ %call2.i, %if.then.i ], [ %v, %if.else.i ]
%.sink = phi i1 [ false, %if.then.i ], [ %phitmp, %if.else.i ]
br i1 %.sink, label %if.end, label %if.then
if.then: ; preds = %_Z6calleei.exit
%call1 = tail call signext i32 @callee(i32 signext 0)
br label %if.end
if.end: ; preds = %if.then, %_Z6calleei.exit
ret i32 %call2.i.sink
}
attributes #0 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="ppc64le" "target-features"="+altivec,+bpermd,+crypto,+direct-move,+extdiv,+htm,+power8-vector,+vsx,-power9-vector" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="ppc64le" "target-features"="+altivec,+bpermd,+crypto,+direct-move,+extdiv,+htm,+power8-vector,+vsx,-power9-vector" "unsafe-fp-math"="false" "use-soft-float"="false" }
...
---
name: func
alignment: 16
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
registers:
liveins:
- { reg: '$x3', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 48
offsetAdjustment: 0
maxAlignment: 0
adjustsStack: true
hasCalls: true
stackProtector: ''
maxCallFrameSize: 32
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
- { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, stack-id: default,
callee-saved-register: '$x30', callee-saved-restored: true, debug-info-variable: '',
debug-info-expression: '', debug-info-location: '' }
stack:
constants:
body: |
bb.0.entry:
successors: %bb.2(0x30000000), %bb.1(0x50000000)
liveins: $x3, $x30
; bc should be converted into b, and creqv (CRSET) should be removed since it isn't used.
; CHECK-LABEL: func
; CHECK: # %bb.1
; CHECK-NOT: creqv
; CHECK-NOT: bc
; CHECK: .LBB0_2
$x0 = MFLR8 implicit $lr8
STD killed $x0, 16, $x1
$x1 = STDU $x1, -48, $x1
STD killed $x30, 32, $x1 :: (store 8 into %fixed-stack.0, align 16)
$x30 = OR8 $x3, $x3
BL8_NOP @callee, csr_ppc64_altivec, implicit-def dead $lr8, implicit $rm, implicit killed $x3, implicit $x2, implicit-def $r1, implicit-def $x3
renamable $cr0 = CMPLWI renamable $r3, 0
BCC 76, killed renamable $cr0, %bb.2
bb.1.if.then.i:
successors: %bb.5(0x40000000), %bb.4(0x40000000)
liveins: $x3
renamable $x3 = EXTSW_32_64 killed renamable $r3, implicit $x3
BL8_NOP @callee, csr_ppc64_altivec, implicit-def dead $lr8, implicit $rm, implicit killed $x3, implicit $x2, implicit-def $r1, implicit-def $x3
renamable $cr0gt = CRSET implicit-def $cr0
$x30 = OR8 killed $x3, $x3
BC killed renamable $cr0gt, %bb.5
bb.4.if.then:
successors: %bb.5(0x80000000)
liveins: $x30
$x3 = LI8 0
BL8_NOP @callee, csr_ppc64_altivec, implicit-def dead $lr8, implicit $rm, implicit killed $x3, implicit $x2, implicit-def $r1, implicit-def dead $x3
bb.5.if.end:
liveins: $x30
renamable $x3 = EXTSW_32_64 killed renamable $r30, implicit $x30
$x30 = LD 32, $x1 :: (load 8 from %fixed-stack.0, align 16)
$x1 = ADDI8 $x1, 48
$x0 = LD 16, $x1
MTLR8 killed $x0, implicit-def $lr8
BLR8 implicit $lr8, implicit $rm, implicit killed $x3
bb.2.if.else.i:
successors: %bb.5(0x40000000), %bb.4(0x40000000)
liveins: $x30
renamable $cr0 = CMPWI renamable $r30, -1
BCn killed renamable $cr0gt, %bb.4
B %bb.5
...