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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -mtriple=wasm32-unknown-unknown -S --passes=expand-variadics --expand-variadics-override=optimize < %s | FileCheck %s -check-prefixes=CHECK,OPT
; RUN: opt -mtriple=wasm32-unknown-unknown -S --passes=expand-variadics --expand-variadics-override=lowering < %s | FileCheck %s -check-prefixes=CHECK,ABI
; REQUIRES: webassembly-registered-target
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
declare void @llvm.va_copy.p0(ptr, ptr)
declare void @valist(ptr noundef)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
declare void @llvm.va_start.p0(ptr)
declare void @llvm.va_end.p0(ptr)
define void @start_once(...) {
; OPT-LABEL: @start_once(
; OPT-NEXT: entry:
; OPT-NEXT: [[VA_START:%.*]] = alloca ptr, align 4
; OPT-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr [[VA_START]])
; OPT-NEXT: call void @llvm.va_start.p0(ptr [[VA_START]])
; OPT-NEXT: [[TMP0:%.*]] = load ptr, ptr [[VA_START]], align 4
; OPT-NEXT: call void @start_once.valist(ptr [[TMP0]])
; OPT-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr [[VA_START]])
; OPT-NEXT: ret void
;
; ABI-LABEL: @start_once(
; ABI-NEXT: entry:
; ABI-NEXT: [[S:%.*]] = alloca ptr, align 4
; ABI-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr nonnull [[S]])
; ABI-NEXT: store ptr [[VARARGS:%.*]], ptr [[S]], align 4
; ABI-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S]], align 4
; ABI-NEXT: call void @valist(ptr noundef [[TMP0]])
; ABI-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr nonnull [[S]])
; ABI-NEXT: ret void
;
entry:
%s = alloca ptr, align 4
call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %s)
call void @llvm.va_start.p0(ptr nonnull %s)
%0 = load ptr, ptr %s, align 4
call void @valist(ptr noundef %0)
call void @llvm.va_end.p0(ptr %s)
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %s)
ret void
}
define void @start_twice(...) {
; OPT-LABEL: @start_twice(
; OPT-NEXT: entry:
; OPT-NEXT: [[VA_START:%.*]] = alloca ptr, align 4
; OPT-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr [[VA_START]])
; OPT-NEXT: call void @llvm.va_start.p0(ptr [[VA_START]])
; OPT-NEXT: [[TMP0:%.*]] = load ptr, ptr [[VA_START]], align 4
; OPT-NEXT: call void @start_twice.valist(ptr [[TMP0]])
; OPT-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr [[VA_START]])
; OPT-NEXT: ret void
;
; ABI-LABEL: @start_twice(
; ABI-NEXT: entry:
; ABI-NEXT: [[S0:%.*]] = alloca ptr, align 4
; ABI-NEXT: [[S1:%.*]] = alloca ptr, align 4
; ABI-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr nonnull [[S0]])
; ABI-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr nonnull [[S1]])
; ABI-NEXT: store ptr [[VARARGS:%.*]], ptr [[S0]], align 4
; ABI-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S0]], align 4
; ABI-NEXT: call void @valist(ptr noundef [[TMP0]])
; ABI-NEXT: store ptr [[VARARGS]], ptr [[S1]], align 4
; ABI-NEXT: [[TMP1:%.*]] = load ptr, ptr [[S1]], align 4
; ABI-NEXT: call void @valist(ptr noundef [[TMP1]])
; ABI-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr nonnull [[S1]])
; ABI-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr nonnull [[S0]])
; ABI-NEXT: ret void
;
entry:
%s0 = alloca ptr, align 4
%s1 = alloca ptr, align 4
call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %s0)
call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %s1)
call void @llvm.va_start.p0(ptr nonnull %s0)
%0 = load ptr, ptr %s0, align 4
call void @valist(ptr noundef %0)
call void @llvm.va_end.p0(ptr %s0)
call void @llvm.va_start.p0(ptr nonnull %s1)
%1 = load ptr, ptr %s1, align 4
call void @valist(ptr noundef %1)
call void @llvm.va_end.p0(ptr %s1)
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %s1)
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %s0)
ret void
}
define void @copy(ptr noundef %va) {
; CHECK-LABEL: @copy(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[VA_ADDR:%.*]] = alloca ptr, align 4
; CHECK-NEXT: [[CP:%.*]] = alloca ptr, align 4
; CHECK-NEXT: store ptr [[VA:%.*]], ptr [[VA_ADDR]], align 4
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr nonnull [[CP]])
; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr [[CP]], ptr [[VA_ADDR]], i32 4, i1 false)
; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr [[CP]], align 4
; CHECK-NEXT: call void @valist(ptr noundef [[TMP0]])
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr nonnull [[CP]])
; CHECK-NEXT: ret void
;
entry:
%va.addr = alloca ptr, align 4
%cp = alloca ptr, align 4
store ptr %va, ptr %va.addr, align 4
call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %cp)
call void @llvm.va_copy.p0(ptr nonnull %cp, ptr nonnull %va.addr)
%0 = load ptr, ptr %cp, align 4
call void @valist(ptr noundef %0)
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %cp)
ret void
}
|