1; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers | FileCheck %s
2
3; Test a subset of compiler-rt/libm libcalls expected to be emitted by the wasm backend
4
5target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
6target triple = "wasm32-unknown-unknown"
7
8declare fp128 @llvm.sqrt.f128(fp128)
9declare fp128 @llvm.floor.f128(fp128)
10declare fp128 @llvm.trunc.f128(fp128)
11declare fp128 @llvm.nearbyint.f128(fp128)
12declare fp128 @llvm.pow.f128(fp128, fp128)
13declare fp128 @llvm.powi.f128(fp128, i32)
14
15declare double @llvm.cos.f64(double)
16declare double @llvm.log10.f64(double)
17declare double @llvm.pow.f64(double, double)
18declare double @llvm.powi.f64(double, i32)
19declare double @llvm.log.f64(double)
20declare double @llvm.exp.f64(double)
21declare i32 @llvm.lround(double)
22
23
24
25; CHECK-LABEL: fp128libcalls:
26define fp128 @fp128libcalls(fp128 %x, fp128 %y, i32 %z) {
27  ; compiler-rt call
28  ; CHECK: call __addtf3
29  %a = fadd fp128 %x, %y
30  ; CHECK: call __multf3
31  %b = fmul fp128 %a, %y
32  ; CHECK: call __divtf3
33  %c = fdiv fp128 %b, %y
34  ; libm calls
35  ; CHECK: call sqrtl
36  %d = call fp128 @llvm.sqrt.f128(fp128 %c)
37  ; CHECK: call floorl
38  %e = call fp128 @llvm.floor.f128(fp128 %d)
39  ; CHECK: call powl
40  %f = call fp128 @llvm.pow.f128(fp128 %e, fp128 %y)
41  ; CHECK: call __powitf2
42  %g = call fp128 @llvm.powi.f128(fp128 %f, i32 %z)
43  ; CHECK: call truncl
44  %h = call fp128 @llvm.trunc.f128(fp128 %g)
45  ; CHECK: call nearbyintl
46  %i = call fp128 @llvm.nearbyint.f128(fp128 %h)
47  ret fp128 %i
48}
49
50; CHECK-LABEL: i128libcalls:
51define i128 @i128libcalls(i128 %x, i128 %y) {
52  ; Basic ops should be expanded
53  ; CHECK_NOT: call
54  %a = add i128 %x, %y
55  ; CHECK: call __multi3
56  %b = mul i128 %a, %y
57  ; CHECK: call __umodti3
58  %c = urem i128 %b, %y
59  ret i128 %c
60}
61
62; CHECK-LABEL: f64libcalls:
63define i32 @f64libcalls(double %x, double %y, i32 %z) {
64 ; CHECK: f64.call $push{{[0-9]}}=, cos
65 %a = call double @llvm.cos.f64(double %x)
66 ; CHECK: f64.call $push{{[0-9]}}=, log10
67 %b = call double @llvm.log10.f64(double %a)
68 ; CHECK: f64.call $push{{[0-9]}}=, pow
69 %c = call double @llvm.pow.f64(double %b, double %y)
70 ; CHECK: f64.call $push{{[0-9]}}=, __powidf2
71 %d = call double @llvm.powi.f64(double %c, i32 %z)
72 ; CHECK: f64.call $push{{[0-9]}}=, log
73 %e = call double @llvm.log.f64(double %d)
74 ; CHECK: f64.call $push{{[0-9]}}=, exp
75 %f = call double @llvm.exp.f64(double %e)
76 ; CHECK: i32.call $push{{[0-9]}}=, lround
77 %g = call i32 @llvm.lround(double %f)
78 ret i32 %g
79}
80
81; fcmp ord and unord (RTLIB::O_F32 / RTLIB::UO_F32 etc) are a special case (see
82; comment in WebAssemblyRunimeLibcallSignatures.cpp) so check them separately.
83; no libcalls are needed for f32 and f64
84
85; CHECK-LABEL: unordd:
86define i1 @unordd(double %x, double %y) {
87 ; CHECK-NOT: call
88 ; CHECK: f64.ne
89 %a = fcmp uno double %x, %y
90 ; CHECK-NOT: call
91 ; CHECK: f64.eq
92 %b = fcmp ord double %x, %y
93 ; CHECK: i32.xor
94 %c = xor i1 %a, %b
95 ret i1 %c
96}
97
98; CHECK-LABEL: unordf:
99define i1 @unordf(float %x, float %y) {
100 ; CHECK-NOT: call
101 ; CHECK: f32.ne
102 %a = fcmp uno float %x, %y
103 ; CHECK-NOT: call
104 ; CHECK: f32.eq
105 %b = fcmp ord float %x, %y
106 ; CHECK: i32.xor
107 %c = xor i1 %a, %b
108 ret i1 %c
109}
110
111; CHECK-LABEL: unordt:
112define i1 @unordt(fp128 %x, fp128 %y) {
113 ; CHECK: i32.call $push[[CALL:[0-9]]]=, __unordtf2
114 ; CHECK-NEXT: i32.const $push[[ZERO:[0-9]+]]=, 0
115 ; CHECK-NEXT: i32.ne $push{{[0-9]}}=, $pop[[CALL]], $pop[[ZERO]]
116 %a = fcmp uno fp128 %x, %y
117 ret i1 %a
118}
119
120; CHECK-LABEL: ordt:
121define i1 @ordt(fp128 %x, fp128 %y) {
122 ; CHECK: i32.call $push[[CALL:[0-9]]]=, __unordtf2
123 ; CHECK-NEXT: i32.eqz $push{{[0-9]}}=, $pop[[CALL]]
124 %a = fcmp ord fp128 %x, %y
125 ret i1 %a
126}
127