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
|
; RUN: llc %s -o - | FileCheck %s
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-unknown-eabi"
; Function Attrs: nounwind
define dso_local void @f(i64 %v) local_unnamed_addr #0 {
entry:
%call = tail call i32 bitcast (i32 (...)* @test to i32 ()*)() #0
%and = and i32 %call, 2
%cmp = icmp eq i32 %and, 0
br i1 %cmp, label %if.then, label %if.else
; CHECK: tbz
; CHECK-NEXT: b
if.then: ; preds = %entry
switch i64 %v, label %sw.epilog [
i64 0, label %sw.bb
i64 1, label %sw.bb1
i64 2, label %sw.bb2
i64 3, label %sw.bb3
]
sw.bb: ; preds = %if.then
tail call void bitcast (void (...)* @g0 to void ()*)() #0
br label %sw.bb1
sw.bb1: ; preds = %if.then, %sw.bb
tail call void bitcast (void (...)* @g1 to void ()*)() #0
br label %sw.bb2
sw.bb2: ; preds = %if.then, %sw.bb1
tail call void bitcast (void (...)* @g2 to void ()*)() #0
br label %sw.bb3
sw.bb3: ; preds = %if.then, %sw.bb2
tail call void bitcast (void (...)* @g3 to void ()*)() #0
br label %sw.epilog
sw.epilog: ; preds = %sw.bb3, %if.then
%dummy = tail call i64 @llvm.aarch64.space(i32 32700, i64 %v)
br label %if.end
if.else: ; preds = %entry
tail call void bitcast (void (...)* @e to void ()*)() #0
br label %if.end
if.end: ; preds = %if.else, %sw.epilog
ret void
}
declare dso_local i32 @test(...) local_unnamed_addr #0
declare dso_local void @g0(...) local_unnamed_addr #0
declare dso_local void @g1(...) local_unnamed_addr #0
declare dso_local void @g2(...) local_unnamed_addr #0
declare dso_local void @g3(...) local_unnamed_addr #0
declare dso_local void @e(...) local_unnamed_addr #0
declare dso_local i64 @llvm.aarch64.space(i32, i64) local_unnamed_addr #0
attributes #0 = { nounwind "branch-target-enforcement"="true" "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "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"="generic" "target-features"="+neon,+v8.5a" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
