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[BPF] Define set of BPF libcalls
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6 files changed

+128
-211
lines changed

6 files changed

+128
-211
lines changed

‎llvm/include/llvm/IR/RuntimeLibcalls.td‎

Lines changed: 10 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3464,13 +3464,22 @@ def WasmSystemLibrary
34643464
emscripten_return_address,
34653465
__stack_chk_fail, __stack_chk_guard)>;
34663466

3467+
//===----------------------------------------------------------------------===//
3468+
// BPF Runtime Libcalls
3469+
//===----------------------------------------------------------------------===//
3470+
3471+
def isBPF : RuntimeLibcallPredicate<"TT.isBPF()">;
3472+
3473+
// No calls.
3474+
def BPFSystemLibrary : SystemRuntimeLibrary<isBPF, (add)>;
3475+
34673476
//===----------------------------------------------------------------------===//
34683477
// Legacy Default Runtime Libcalls
34693478
//===----------------------------------------------------------------------===//
34703479

34713480
// TODO: Should make every target explicit.
34723481
def isDefaultLibcallArch : RuntimeLibcallPredicate<[{
3473-
TT.isMIPS() || TT.isLoongArch() || TT.isVE() || TT.isBPF() ||
3482+
TT.isMIPS() || TT.isLoongArch() || TT.isVE() ||
34743483
TT.getArch() == Triple::csky || TT.getArch() == Triple::arc ||
34753484
TT.getArch() == Triple::m68k || TT.getArch() == Triple::xtensa ||
34763485
(TT.isSystemZ() && !TT.isOSzOS())

‎llvm/test/CodeGen/BPF/atomic-oversize.ll‎

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,8 @@
11
; RUN: llc -mtriple=bpf < %s | FileCheck %s
2+
; XFAIL: *
3+
; Doesn't currently build with errors
4+
; error: unsupported atomic store
5+
; error: unsupported atomic load
26

37
define void @test(ptr %a) nounwind {
48
; CHECK-LABEL: test:

‎llvm/test/CodeGen/BPF/builtin_calls.ll‎

Lines changed: 0 additions & 39 deletions
This file was deleted.

‎llvm/test/CodeGen/BPF/i128_math.ll‎

Lines changed: 23 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,23 @@
1+
; RUN: llc -march=bpfel < %s | FileCheck %s
2+
;
3+
; C code for this test case:
4+
;
5+
; long func(long a, long b) {
6+
; long x;
7+
; return __builtin_mul_overflow(a, b, &x);
8+
; }
9+
10+
11+
declare { i64, i1 } @llvm.smul.with.overflow.i64(i64, i64)
12+
13+
define noundef range(i64 0, 2) i64 @func(i64 noundef %a, i64 noundef %b) local_unnamed_addr {
14+
entry:
15+
%0 = tail call { i64, i1 } @llvm.smul.with.overflow.i64(i64 %a, i64 %b)
16+
%1 = extractvalue { i64, i1 } %0, 1
17+
%conv = zext i1 %1 to i64
18+
ret i64 %conv
19+
}
20+
21+
; CHECK-LABEL: func
22+
; CHECK-NOT: call __multi3
23+
; CHECK: exit

‎llvm/test/CodeGen/BPF/pr57872.ll‎

Lines changed: 14 additions & 168 deletions
Original file line numberDiff line numberDiff line change
@@ -6,175 +6,21 @@
66
define void @foo(ptr %g) {
77
; CHECK-LABEL: foo:
88
; CHECK: # %bb.0: # %entry
9+
; CHECK-NEXT: r2 = 0
910
; CHECK-NEXT: r1 = *(u64 *)(r1 + 0)
10-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 83)
11-
; CHECK-NEXT: *(u8 *)(r10 - 4) = r2
12-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 82)
13-
; CHECK-NEXT: *(u8 *)(r10 - 5) = r2
14-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 81)
15-
; CHECK-NEXT: *(u8 *)(r10 - 6) = r2
16-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 80)
17-
; CHECK-NEXT: *(u8 *)(r10 - 7) = r2
18-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 79)
19-
; CHECK-NEXT: *(u8 *)(r10 - 8) = r2
20-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 78)
21-
; CHECK-NEXT: *(u8 *)(r10 - 9) = r2
22-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 77)
23-
; CHECK-NEXT: *(u8 *)(r10 - 10) = r2
24-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 76)
25-
; CHECK-NEXT: *(u8 *)(r10 - 11) = r2
26-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 75)
27-
; CHECK-NEXT: *(u8 *)(r10 - 12) = r2
28-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 74)
29-
; CHECK-NEXT: *(u8 *)(r10 - 13) = r2
30-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 73)
31-
; CHECK-NEXT: *(u8 *)(r10 - 14) = r2
32-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 72)
33-
; CHECK-NEXT: *(u8 *)(r10 - 15) = r2
34-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 71)
35-
; CHECK-NEXT: *(u8 *)(r10 - 16) = r2
36-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 70)
37-
; CHECK-NEXT: *(u8 *)(r10 - 17) = r2
38-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 69)
39-
; CHECK-NEXT: *(u8 *)(r10 - 18) = r2
40-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 68)
41-
; CHECK-NEXT: *(u8 *)(r10 - 19) = r2
42-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 67)
43-
; CHECK-NEXT: *(u8 *)(r10 - 20) = r2
44-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 66)
45-
; CHECK-NEXT: *(u8 *)(r10 - 21) = r2
46-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 65)
47-
; CHECK-NEXT: *(u8 *)(r10 - 22) = r2
48-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 64)
49-
; CHECK-NEXT: *(u8 *)(r10 - 23) = r2
50-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 63)
51-
; CHECK-NEXT: *(u8 *)(r10 - 24) = r2
52-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 62)
53-
; CHECK-NEXT: *(u8 *)(r10 - 25) = r2
54-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 61)
55-
; CHECK-NEXT: *(u8 *)(r10 - 26) = r2
56-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 60)
57-
; CHECK-NEXT: *(u8 *)(r10 - 27) = r2
58-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 59)
59-
; CHECK-NEXT: *(u8 *)(r10 - 28) = r2
60-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 58)
61-
; CHECK-NEXT: *(u8 *)(r10 - 29) = r2
62-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 57)
63-
; CHECK-NEXT: *(u8 *)(r10 - 30) = r2
64-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 56)
65-
; CHECK-NEXT: *(u8 *)(r10 - 31) = r2
66-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 55)
67-
; CHECK-NEXT: *(u8 *)(r10 - 32) = r2
68-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 54)
69-
; CHECK-NEXT: *(u8 *)(r10 - 33) = r2
70-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 53)
71-
; CHECK-NEXT: *(u8 *)(r10 - 34) = r2
72-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 52)
73-
; CHECK-NEXT: *(u8 *)(r10 - 35) = r2
74-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 51)
75-
; CHECK-NEXT: *(u8 *)(r10 - 36) = r2
76-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 50)
77-
; CHECK-NEXT: *(u8 *)(r10 - 37) = r2
78-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 49)
79-
; CHECK-NEXT: *(u8 *)(r10 - 38) = r2
80-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 48)
81-
; CHECK-NEXT: *(u8 *)(r10 - 39) = r2
82-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 47)
83-
; CHECK-NEXT: *(u8 *)(r10 - 40) = r2
84-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 46)
85-
; CHECK-NEXT: *(u8 *)(r10 - 41) = r2
86-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 45)
87-
; CHECK-NEXT: *(u8 *)(r10 - 42) = r2
88-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 44)
89-
; CHECK-NEXT: *(u8 *)(r10 - 43) = r2
90-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 43)
91-
; CHECK-NEXT: *(u8 *)(r10 - 44) = r2
92-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 42)
93-
; CHECK-NEXT: *(u8 *)(r10 - 45) = r2
94-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 41)
95-
; CHECK-NEXT: *(u8 *)(r10 - 46) = r2
96-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 40)
97-
; CHECK-NEXT: *(u8 *)(r10 - 47) = r2
98-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 39)
99-
; CHECK-NEXT: *(u8 *)(r10 - 48) = r2
100-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 38)
101-
; CHECK-NEXT: *(u8 *)(r10 - 49) = r2
102-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 37)
103-
; CHECK-NEXT: *(u8 *)(r10 - 50) = r2
104-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 36)
105-
; CHECK-NEXT: *(u8 *)(r10 - 51) = r2
106-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 35)
107-
; CHECK-NEXT: *(u8 *)(r10 - 52) = r2
108-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 34)
109-
; CHECK-NEXT: *(u8 *)(r10 - 53) = r2
110-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 33)
111-
; CHECK-NEXT: *(u8 *)(r10 - 54) = r2
112-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 32)
113-
; CHECK-NEXT: *(u8 *)(r10 - 55) = r2
114-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 31)
115-
; CHECK-NEXT: *(u8 *)(r10 - 56) = r2
116-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 30)
117-
; CHECK-NEXT: *(u8 *)(r10 - 57) = r2
118-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 29)
119-
; CHECK-NEXT: *(u8 *)(r10 - 58) = r2
120-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 28)
121-
; CHECK-NEXT: *(u8 *)(r10 - 59) = r2
122-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 27)
123-
; CHECK-NEXT: *(u8 *)(r10 - 60) = r2
124-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 26)
125-
; CHECK-NEXT: *(u8 *)(r10 - 61) = r2
126-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 25)
127-
; CHECK-NEXT: *(u8 *)(r10 - 62) = r2
128-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 24)
129-
; CHECK-NEXT: *(u8 *)(r10 - 63) = r2
130-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 23)
131-
; CHECK-NEXT: *(u8 *)(r10 - 64) = r2
132-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 22)
133-
; CHECK-NEXT: *(u8 *)(r10 - 65) = r2
134-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 21)
135-
; CHECK-NEXT: *(u8 *)(r10 - 66) = r2
136-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 20)
137-
; CHECK-NEXT: *(u8 *)(r10 - 67) = r2
138-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 19)
139-
; CHECK-NEXT: *(u8 *)(r10 - 68) = r2
140-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 18)
141-
; CHECK-NEXT: *(u8 *)(r10 - 69) = r2
142-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 17)
143-
; CHECK-NEXT: *(u8 *)(r10 - 70) = r2
144-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 16)
145-
; CHECK-NEXT: *(u8 *)(r10 - 71) = r2
146-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 15)
147-
; CHECK-NEXT: *(u8 *)(r10 - 72) = r2
148-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 14)
149-
; CHECK-NEXT: *(u8 *)(r10 - 73) = r2
150-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 13)
151-
; CHECK-NEXT: *(u8 *)(r10 - 74) = r2
152-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 12)
153-
; CHECK-NEXT: *(u8 *)(r10 - 75) = r2
154-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 11)
155-
; CHECK-NEXT: *(u8 *)(r10 - 76) = r2
156-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 10)
157-
; CHECK-NEXT: *(u8 *)(r10 - 77) = r2
158-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 9)
159-
; CHECK-NEXT: *(u8 *)(r10 - 78) = r2
160-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 8)
161-
; CHECK-NEXT: *(u8 *)(r10 - 79) = r2
162-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 7)
163-
; CHECK-NEXT: *(u8 *)(r10 - 80) = r2
164-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 6)
165-
; CHECK-NEXT: *(u8 *)(r10 - 81) = r2
166-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 5)
167-
; CHECK-NEXT: *(u8 *)(r10 - 82) = r2
168-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 4)
169-
; CHECK-NEXT: *(u8 *)(r10 - 83) = r2
170-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 3)
171-
; CHECK-NEXT: *(u8 *)(r10 - 84) = r2
172-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 2)
173-
; CHECK-NEXT: *(u8 *)(r10 - 85) = r2
174-
; CHECK-NEXT: r2 = *(u8 *)(r1 + 1)
175-
; CHECK-NEXT: *(u8 *)(r10 - 86) = r2
176-
; CHECK-NEXT: r1 = *(u8 *)(r1 + 0)
177-
; CHECK-NEXT: *(u8 *)(r10 - 87) = r1
11+
; CHECK-NEXT: r3 = 84
12+
; CHECK-NEXT: LBB0_1: # %load-store-loop
13+
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
14+
; CHECK-NEXT: r4 = r10
15+
; CHECK-NEXT: r4 += -88
16+
; CHECK-NEXT: r4 += r2
17+
; CHECK-NEXT: r5 = r1
18+
; CHECK-NEXT: r5 += r2
19+
; CHECK-NEXT: r5 = *(u8 *)(r5 + 0)
20+
; CHECK-NEXT: *(u8 *)(r4 + 1) = r5
21+
; CHECK-NEXT: r2 += 1
22+
; CHECK-NEXT: if r3 > r2 goto LBB0_1
23+
; CHECK-NEXT: # %bb.2: # %memcpy-split
17824
; CHECK-NEXT: r1 = r10
17925
; CHECK-NEXT: r1 += -88
18026
; CHECK-NEXT: call bar

‎llvm/test/CodeGen/BPF/warn-call.ll‎

Lines changed: 77 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,8 +1,67 @@
1-
; RUN: not llc -mtriple=bpfel < %s 2>&1 >/dev/null | FileCheck %s
1+
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
2+
; RUN: llc -mtriple=bpfel < %s | FileCheck %s
23

3-
; CHECK: error: warn_call.c
4-
; CHECK: built-in function 'memcpy'
54
define ptr @warn(ptr returned, ptr, i64) local_unnamed_addr #0 !dbg !6 {
5+
; CHECK-LABEL: warn:
6+
; CHECK: .Lfunc_begin0:
7+
; CHECK-NEXT: .file 1 "/w/llvm/bld" "warn_call.c"
8+
; CHECK-NEXT: .loc 1 5 0 # warn_call.c:5:0
9+
; CHECK-NEXT: .cfi_startproc
10+
; CHECK-NEXT: # %bb.0:
11+
; CHECK-NEXT: #DEBUG_VALUE: warn:dst <- $r1
12+
; CHECK-NEXT: #DEBUG_VALUE: warn:src <- $r2
13+
; CHECK-NEXT: #DEBUG_VALUE: warn:len <- $r3
14+
; CHECK-NEXT: r6 = r1
15+
; CHECK-NEXT: .Ltmp0:
16+
; CHECK-NEXT: .Ltmp1:
17+
; CHECK-NEXT: #DEBUG_VALUE: warn:dst <- $r6
18+
; CHECK-NEXT: .loc 1 6 2 prologue_end # warn_call.c:6:2
19+
; CHECK-NEXT: .Ltmp2:
20+
; CHECK-NEXT: if r3 == 0 goto LBB0_3
21+
; CHECK-NEXT: .Ltmp3:
22+
; CHECK-NEXT: .Ltmp4:
23+
; CHECK-NEXT: # %bb.1: # %loop-memcpy-expansion.preheader
24+
; CHECK-NEXT: #DEBUG_VALUE: warn:dst <- $r6
25+
; CHECK-NEXT: #DEBUG_VALUE: warn:len <- $r3
26+
; CHECK-NEXT: #DEBUG_VALUE: warn:src <- $r2
27+
; CHECK-NEXT: .loc 1 0 2 is_stmt 0 # warn_call.c:0:2
28+
; CHECK-NEXT: r4 = 0
29+
; CHECK-NEXT: .Ltmp5:
30+
; CHECK-NEXT: .Ltmp6:
31+
; CHECK-NEXT: LBB0_2: # %loop-memcpy-expansion
32+
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
33+
; CHECK-NEXT: #DEBUG_VALUE: warn:dst <- $r6
34+
; CHECK-NEXT: #DEBUG_VALUE: warn:len <- $r3
35+
; CHECK-NEXT: #DEBUG_VALUE: warn:src <- $r2
36+
; CHECK-NEXT: r5 = r6
37+
; CHECK-NEXT: r5 += r4
38+
; CHECK-NEXT: r0 = r2
39+
; CHECK-NEXT: r0 += r4
40+
; CHECK-NEXT: w0 = *(u8 *)(r0 + 0)
41+
; CHECK-NEXT: *(u8 *)(r5 + 0) = w0
42+
; CHECK-NEXT: r4 += 1
43+
; CHECK-NEXT: if r4 < r3 goto LBB0_2
44+
; CHECK-NEXT: .Ltmp7:
45+
; CHECK-NEXT: .Ltmp8:
46+
; CHECK-NEXT: LBB0_3: # %post-loop-memcpy-expansion
47+
; CHECK-NEXT: #DEBUG_VALUE: warn:dst <- $r6
48+
; CHECK-NEXT: #DEBUG_VALUE: warn:len <- $r3
49+
; CHECK-NEXT: #DEBUG_VALUE: warn:src <- $r2
50+
; CHECK-NEXT: .loc 1 7 2 is_stmt 1 # warn_call.c:7:2
51+
; CHECK-NEXT: .Ltmp9:
52+
; CHECK-NEXT: r1 = r6
53+
; CHECK-NEXT: call foo
54+
; CHECK-NEXT: .Ltmp10:
55+
; CHECK-NEXT: .Ltmp11:
56+
; CHECK-NEXT: .loc 1 8 9 # warn_call.c:8:9
57+
; CHECK-NEXT: .Ltmp12:
58+
; CHECK-NEXT: r1 = r6
59+
; CHECK-NEXT: call bar
60+
; CHECK-NEXT: .loc 1 8 2 is_stmt 0 # warn_call.c:8:2
61+
; CHECK-NEXT: .Ltmp13:
62+
; CHECK-NEXT: exit
63+
; CHECK-NEXT: .Ltmp14:
64+
; CHECK-NEXT: .Ltmp15:
665
tail call void @llvm.dbg.value(metadata ptr %0, i64 0, metadata !14, metadata !17), !dbg !18
766
tail call void @llvm.dbg.value(metadata ptr %1, i64 0, metadata !15, metadata !17), !dbg !19
867
tail call void @llvm.dbg.value(metadata i64 %2, i64 0, metadata !16, metadata !17), !dbg !20
@@ -19,6 +78,21 @@ declare ptr @foo(ptr, ptr, i64) local_unnamed_addr #2
1978

2079
; Function Attrs: noinline nounwind readnone
2180
define internal fastcc ptr @bar(ptr readnone returned) unnamed_addr #3 !dbg !25 {
81+
; CHECK-LABEL: bar:
82+
; CHECK: .Lfunc_begin1:
83+
; CHECK-NEXT: .loc 1 2 0 is_stmt 1 # warn_call.c:2:0
84+
; CHECK-NEXT: .cfi_startproc
85+
; CHECK-NEXT: # %bb.0:
86+
; CHECK-NEXT: r0 = r1
87+
; CHECK-NEXT: #DEBUG_VALUE: bar:src <- 0
88+
; CHECK-NEXT: #DEBUG_VALUE: bar:len <- 0
89+
; CHECK-NEXT: .Ltmp16:
90+
; CHECK-NEXT: .loc 1 2 93 prologue_end # warn_call.c:2:93
91+
; CHECK-NEXT: .Ltmp17:
92+
; CHECK-NEXT: .Ltmp18:
93+
; CHECK-NEXT: exit
94+
; CHECK-NEXT: .Ltmp19:
95+
; CHECK-NEXT: .Ltmp20:
2296
tail call void @llvm.dbg.value(metadata ptr null, i64 0, metadata !28, metadata !17), !dbg !30
2397
tail call void @llvm.dbg.value(metadata i64 0, i64 0, metadata !29, metadata !17), !dbg !31
2498
ret ptr %0, !dbg !32

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