1; RUN: llc < %s -asm-verbose=false | FileCheck %s
2
3; Test that basic 64-bit floating-point operations assemble as expected.
4
5target datalayout = "e-p:32:32-i64:64-n32:64-S128"
6target triple = "wasm32-unknown-unknown"
7
8declare double @llvm.fabs.f64(double)
9declare double @llvm.copysign.f64(double, double)
10declare double @llvm.sqrt.f64(double)
11declare double @llvm.ceil.f64(double)
12declare double @llvm.floor.f64(double)
13declare double @llvm.trunc.f64(double)
14declare double @llvm.nearbyint.f64(double)
15declare double @llvm.rint.f64(double)
16
17; CHECK-LABEL: fadd64:
18; CHECK-NEXT: .param f64, f64{{$}}
19; CHECK-NEXT: .result f64{{$}}
20; CHECK-NEXT: f64.add $push0, $0, $1{{$}}
21; CHECK-NEXT: return $pop0{{$}}
22define double @fadd64(double %x, double %y) {
23  %a = fadd double %x, %y
24  ret double %a
25}
26
27; CHECK-LABEL: fsub64:
28; CHECK: f64.sub $push0, $0, $1{{$}}
29; CHECK-NEXT: return $pop0{{$}}
30define double @fsub64(double %x, double %y) {
31  %a = fsub double %x, %y
32  ret double %a
33}
34
35; CHECK-LABEL: fmul64:
36; CHECK: f64.mul $push0, $0, $1{{$}}
37; CHECK-NEXT: return $pop0{{$}}
38define double @fmul64(double %x, double %y) {
39  %a = fmul double %x, %y
40  ret double %a
41}
42
43; CHECK-LABEL: fdiv64:
44; CHECK: f64.div $push0, $0, $1{{$}}
45; CHECK-NEXT: return $pop0{{$}}
46define double @fdiv64(double %x, double %y) {
47  %a = fdiv double %x, %y
48  ret double %a
49}
50
51; CHECK-LABEL: fabs64:
52; CHECK: f64.abs $push0, $0{{$}}
53; CHECK-NEXT: return $pop0{{$}}
54define double @fabs64(double %x) {
55  %a = call double @llvm.fabs.f64(double %x)
56  ret double %a
57}
58
59; CHECK-LABEL: fneg64:
60; CHECK: f64.neg $push0, $0{{$}}
61; CHECK-NEXT: return $pop0{{$}}
62define double @fneg64(double %x) {
63  %a = fsub double -0., %x
64  ret double %a
65}
66
67; CHECK-LABEL: copysign64:
68; CHECK: f64.copysign $push0, $0, $1{{$}}
69; CHECK-NEXT: return $pop0{{$}}
70define double @copysign64(double %x, double %y) {
71  %a = call double @llvm.copysign.f64(double %x, double %y)
72  ret double %a
73}
74
75; CHECK-LABEL: sqrt64:
76; CHECK: f64.sqrt $push0, $0{{$}}
77; CHECK-NEXT: return $pop0{{$}}
78define double @sqrt64(double %x) {
79  %a = call double @llvm.sqrt.f64(double %x)
80  ret double %a
81}
82
83; CHECK-LABEL: ceil64:
84; CHECK: f64.ceil $push0, $0{{$}}
85; CHECK-NEXT: return $pop0{{$}}
86define double @ceil64(double %x) {
87  %a = call double @llvm.ceil.f64(double %x)
88  ret double %a
89}
90
91; CHECK-LABEL: floor64:
92; CHECK: f64.floor $push0, $0{{$}}
93; CHECK-NEXT: return $pop0{{$}}
94define double @floor64(double %x) {
95  %a = call double @llvm.floor.f64(double %x)
96  ret double %a
97}
98
99; CHECK-LABEL: trunc64:
100; CHECK: f64.trunc $push0, $0{{$}}
101; CHECK-NEXT: return $pop0{{$}}
102define double @trunc64(double %x) {
103  %a = call double @llvm.trunc.f64(double %x)
104  ret double %a
105}
106
107; CHECK-LABEL: nearest64:
108; CHECK: f64.nearest $push0, $0{{$}}
109; CHECK-NEXT: return $pop0{{$}}
110define double @nearest64(double %x) {
111  %a = call double @llvm.nearbyint.f64(double %x)
112  ret double %a
113}
114
115; CHECK-LABEL: nearest64_via_rint:
116; CHECK: f64.nearest $push0, $0{{$}}
117; CHECK-NEXT: return $pop0{{$}}
118define double @nearest64_via_rint(double %x) {
119  %a = call double @llvm.rint.f64(double %x)
120  ret double %a
121}
122
123; Min and max tests. LLVM currently only forms fminnan and fmaxnan nodes in
124; cases where there's a single fcmp with a select and it can prove that one
125; of the arms is never NaN, so we only test that case. In the future if LLVM
126; learns to form fminnan/fmaxnan in more cases, we can write more general
127; tests.
128
129; CHECK-LABEL: fmin64:
130; CHECK: f64.min $push1, $0, $pop0{{$}}
131; CHECK-NEXT: return $pop1{{$}}
132define double @fmin64(double %x) {
133  %a = fcmp ult double %x, 0.0
134  %b = select i1 %a, double %x, double 0.0
135  ret double %b
136}
137
138; CHECK-LABEL: fmax64:
139; CHECK: f64.max $push1, $0, $pop0{{$}}
140; CHECK-NEXT: return $pop1{{$}}
141define double @fmax64(double %x) {
142  %a = fcmp ugt double %x, 0.0
143  %b = select i1 %a, double %x, double 0.0
144  ret double %b
145}
146