1; RUN: llc -o - %s -asm-verbose=false -wasm-keep-registers -disable-wasm-fallthrough-return-opt -mattr=+simd128 | FileCheck %s
2
3target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
4target triple = "wasm32-unknown-unknown"
5
6; Test that stackified IMPLICIT_DEF instructions are converted into
7; CONST_XXX instructions to provide an explicit push.
8
9; CHECK-LABEL: implicit_def_i32:
10; CHECK: .LBB{{[0-9]+}}_4:{{$}}
11; CHECK-NEXT: end_block{{$}}
12; CHECK-NEXT: i32.const $push[[R:[0-9]+]]=, 0{{$}}
13; CHECK-NEXT: return $pop[[R]]{{$}}
14; CHECK-NEXT: end_function{{$}}
15define i32 @implicit_def_i32() {
16  br i1 undef, label %A, label %X
17
18A:                                                ; preds = %0
19  %d = icmp slt i1 0, 0
20  br i1 %d, label %C, label %B
21
22B:                                                ; preds = %A
23  br label %C
24
25C:                                                ; preds = %B, %A
26  %h = phi i32 [ undef, %A ], [ 0, %B ]
27  br label %X
28
29X:                                                ; preds = %0, C
30  %i = phi i32 [ 1, %0 ], [ %h, %C ]
31  ret i32 %i
32}
33
34; CHECK-LABEL: implicit_def_i64:
35; CHECK: .LBB{{[0-9]+}}_4:{{$}}
36; CHECK-NEXT: end_block{{$}}
37; CHECK-NEXT: i64.const $push[[R:[0-9]+]]=, 0{{$}}
38; CHECK-NEXT: return $pop[[R]]{{$}}
39; CHECK-NEXT: end_function{{$}}
40define i64 @implicit_def_i64() {
41  br i1 undef, label %A, label %X
42
43A:                                                ; preds = %0
44  %d = icmp slt i1 0, 0
45  br i1 %d, label %C, label %B
46
47B:                                                ; preds = %A
48  br label %C
49
50C:                                                ; preds = %B, %A
51  %h = phi i64 [ undef, %A ], [ 0, %B ]
52  br label %X
53
54X:                                                ; preds = %0, C
55  %i = phi i64 [ 1, %0 ], [ %h, %C ]
56  ret i64 %i
57}
58
59; CHECK-LABEL: implicit_def_f32:
60; CHECK: .LBB{{[0-9]+}}_4:{{$}}
61; CHECK-NEXT: end_block{{$}}
62; CHECK-NEXT: f32.const $push[[R:[0-9]+]]=, 0x0p0{{$}}
63; CHECK-NEXT: return $pop[[R]]{{$}}
64; CHECK-NEXT: end_function{{$}}
65define float @implicit_def_f32() {
66  br i1 undef, label %A, label %X
67
68A:                                                ; preds = %0
69  %d = icmp slt i1 0, 0
70  br i1 %d, label %C, label %B
71
72B:                                                ; preds = %A
73  br label %C
74
75C:                                                ; preds = %B, %A
76  %h = phi float [ undef, %A ], [ 0.0, %B ]
77  br label %X
78
79X:                                                ; preds = %0, C
80  %i = phi float [ 1.0, %0 ], [ %h, %C ]
81  ret float %i
82}
83
84; CHECK-LABEL: implicit_def_f64:
85; CHECK: .LBB{{[0-9]+}}_4:{{$}}
86; CHECK-NEXT: end_block{{$}}
87; CHECK-NEXT: f64.const $push[[R:[0-9]+]]=, 0x0p0{{$}}
88; CHECK-NEXT: return $pop[[R]]{{$}}
89; CHECK-NEXT: end_function{{$}}
90define double @implicit_def_f64() {
91  br i1 undef, label %A, label %X
92
93A:                                                ; preds = %0
94  %d = icmp slt i1 0, 0
95  br i1 %d, label %C, label %B
96
97B:                                                ; preds = %A
98  br label %C
99
100C:                                                ; preds = %B, %A
101  %h = phi double [ undef, %A ], [ 0.0, %B ]
102  br label %X
103
104X:                                                ; preds = %0, C
105  %i = phi double [ 1.0, %0 ], [ %h, %C ]
106  ret double %i
107}
108
109; CHECK-LABEL: implicit_def_v4i32:
110; CHECK: .LBB{{[0-9]+}}_4:{{$}}
111; CHECK-NEXT: end_block{{$}}
112; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
113; CHECK-NEXT: i32x4.splat $push[[R:[0-9]+]]=, $pop[[L0]]
114; CHECK-NEXT: return $pop[[R]]{{$}}
115; CHECK-NEXT: end_function{{$}}
116define <4 x i32> @implicit_def_v4i32() {
117  br i1 undef, label %A, label %X
118
119A:                                                ; preds = %0
120  %d = icmp slt i1 0, 0
121  br i1 %d, label %C, label %B
122
123B:                                                ; preds = %A
124  br label %C
125
126C:                                                ; preds = %B, %A
127  %h = phi <4 x i32> [ undef, %A ], [ <i32 0, i32 0, i32 0, i32 0>, %B ]
128  br label %X
129
130X:                                                ; preds = %0, C
131  %i = phi <4 x i32> [ <i32 1, i32 1, i32 1, i32 1>, %0 ], [ %h, %C ]
132  ret <4 x i32> %i
133}
134