xref: /llvm-project/llvm/test/Transforms/InstSimplify/ConstProp/convert-from-fp16.ll (revision 8148c28fad4956b6fc785a5cf1d082eda56e1c6a)
1*8148c28fSSanjay Patel; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2b280ee1dSBjorn Pettersson; RUN: opt -passes=instsimplify -S < %s | FileCheck %s
3486ed885SArthur Eubanks
4486ed885SArthur Eubanks; Verify that we don't crash with an assertion failure when constant folding
5486ed885SArthur Eubanks; a call to intrinsic 'convert.from.fp16' if the return type is not 'float'.
6486ed885SArthur Eubanks
7486ed885SArthur Eubanksdefine float @fold_from_fp16_to_fp32() {
8*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_fp32(
9*8148c28fSSanjay Patel; CHECK-NEXT:    ret float 0.000000e+00
10*8148c28fSSanjay Patel;
11*8148c28fSSanjay Patel  %r = call float @llvm.convert.from.fp16.f32(i16 0)
12*8148c28fSSanjay Patel  ret float %r
13486ed885SArthur Eubanks}
14486ed885SArthur Eubanks
15486ed885SArthur Eubanksdefine double @fold_from_fp16_to_fp64() {
16*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_fp64(
17*8148c28fSSanjay Patel; CHECK-NEXT:    ret double 0.000000e+00
18*8148c28fSSanjay Patel;
19*8148c28fSSanjay Patel  %r = call double @llvm.convert.from.fp16.f64(i16 0)
20*8148c28fSSanjay Patel  ret double %r
21486ed885SArthur Eubanks}
22486ed885SArthur Eubanks
23486ed885SArthur Eubanksdefine x86_fp80 @fold_from_fp16_to_fp80() {
24*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_fp80(
25*8148c28fSSanjay Patel; CHECK-NEXT:    ret x86_fp80 0xK00000000000000000000
26*8148c28fSSanjay Patel;
27*8148c28fSSanjay Patel  %r = call x86_fp80 @llvm.convert.from.fp16.f80(i16 0)
28*8148c28fSSanjay Patel  ret x86_fp80 %r
29486ed885SArthur Eubanks}
30486ed885SArthur Eubanks
31486ed885SArthur Eubanksdefine fp128 @fold_from_fp16_to_fp128() {
32*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_fp128(
33*8148c28fSSanjay Patel; CHECK-NEXT:    ret fp128 0xL00000000000000000000000000000000
34*8148c28fSSanjay Patel;
35*8148c28fSSanjay Patel  %r = call fp128 @llvm.convert.from.fp16.f128(i16 0)
36*8148c28fSSanjay Patel  ret fp128 %r
37486ed885SArthur Eubanks}
38486ed885SArthur Eubanks
39486ed885SArthur Eubanksdefine ppc_fp128 @fold_from_fp16_to_ppcfp128() {
40*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_ppcfp128(
41*8148c28fSSanjay Patel; CHECK-NEXT:    ret ppc_fp128 0xM00000000000000000000000000000000
42*8148c28fSSanjay Patel;
43*8148c28fSSanjay Patel  %r = call ppc_fp128 @llvm.convert.from.fp16.ppcf128(i16 0)
44*8148c28fSSanjay Patel  ret ppc_fp128 %r
45486ed885SArthur Eubanks}
46486ed885SArthur Eubanks
47486ed885SArthur Eubanksdefine float @fold_from_fp16_to_fp32_b() {
48*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_fp32_b(
49*8148c28fSSanjay Patel; CHECK-NEXT:    ret float 4.000000e+00
50*8148c28fSSanjay Patel;
51*8148c28fSSanjay Patel  %a = call i16 @llvm.convert.to.fp16.f64(double 4.0)
52*8148c28fSSanjay Patel  %r = call float @llvm.convert.from.fp16.f32(i16 %a)
53*8148c28fSSanjay Patel  ret float %r
54486ed885SArthur Eubanks}
55486ed885SArthur Eubanks
56486ed885SArthur Eubanksdefine double @fold_from_fp16_to_fp64_b() {
57*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_fp64_b(
58*8148c28fSSanjay Patel; CHECK-NEXT:    ret double 4.000000e+00
59*8148c28fSSanjay Patel;
60*8148c28fSSanjay Patel  %a = call i16 @llvm.convert.to.fp16.f64(double 4.0)
61*8148c28fSSanjay Patel  %r = call double @llvm.convert.from.fp16.f64(i16 %a)
62*8148c28fSSanjay Patel  ret double %r
63486ed885SArthur Eubanks}
64486ed885SArthur Eubanks
65486ed885SArthur Eubanksdefine x86_fp80 @fold_from_fp16_to_fp80_b() {
66*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_fp80_b(
67*8148c28fSSanjay Patel; CHECK-NEXT:    ret x86_fp80 0xK40018000000000000000
68*8148c28fSSanjay Patel;
69*8148c28fSSanjay Patel  %a = call i16 @llvm.convert.to.fp16.f64(double 4.0)
70*8148c28fSSanjay Patel  %r = call x86_fp80 @llvm.convert.from.fp16.f80(i16 %a)
71*8148c28fSSanjay Patel  ret x86_fp80 %r
72486ed885SArthur Eubanks}
73486ed885SArthur Eubanks
74486ed885SArthur Eubanksdefine fp128 @fold_from_fp16_to_fp128_b() {
75*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_fp128_b(
76*8148c28fSSanjay Patel; CHECK-NEXT:    ret fp128 0xL00000000000000004001000000000000
77*8148c28fSSanjay Patel;
78*8148c28fSSanjay Patel  %a = call i16 @llvm.convert.to.fp16.f64(double 4.0)
79*8148c28fSSanjay Patel  %r = call fp128 @llvm.convert.from.fp16.f128(i16 %a)
80*8148c28fSSanjay Patel  ret fp128 %r
81486ed885SArthur Eubanks}
82486ed885SArthur Eubanks
83486ed885SArthur Eubanksdefine ppc_fp128 @fold_from_fp16_to_ppcfp128_b() {
84*8148c28fSSanjay Patel; CHECK-LABEL: @fold_from_fp16_to_ppcfp128_b(
85*8148c28fSSanjay Patel; CHECK-NEXT:    ret ppc_fp128 0xM40100000000000000000000000000000
86*8148c28fSSanjay Patel;
87*8148c28fSSanjay Patel  %a = call i16 @llvm.convert.to.fp16.f64(double 4.0)
88*8148c28fSSanjay Patel  %r = call ppc_fp128 @llvm.convert.from.fp16.ppcf128(i16 %a)
89*8148c28fSSanjay Patel  ret ppc_fp128 %r
90486ed885SArthur Eubanks}
91486ed885SArthur Eubanks
92*8148c28fSSanjay Patel; This would assert because converting SNAN causes an invalidOp status.
93*8148c28fSSanjay Patel; PR56981
94*8148c28fSSanjay Patel
95*8148c28fSSanjay Pateldefine float @convert_snan() {
96*8148c28fSSanjay Patel; CHECK-LABEL: @convert_snan(
97*8148c28fSSanjay Patel; CHECK-NEXT:    ret float 0x7FF8040000000000
98*8148c28fSSanjay Patel;
99*8148c28fSSanjay Patel  %r = call float @llvm.convert.from.fp16.f32(i16 31745) ; 0x7c01
100*8148c28fSSanjay Patel  ret float %r
101*8148c28fSSanjay Patel}
102486ed885SArthur Eubanks
103486ed885SArthur Eubanksdeclare i16 @llvm.convert.to.fp16.f64(double)
104486ed885SArthur Eubanksdeclare float @llvm.convert.from.fp16.f32(i16)
105486ed885SArthur Eubanksdeclare double @llvm.convert.from.fp16.f64(i16)
106486ed885SArthur Eubanksdeclare x86_fp80 @llvm.convert.from.fp16.f80(i16)
107486ed885SArthur Eubanksdeclare fp128 @llvm.convert.from.fp16.f128(i16)
108486ed885SArthur Eubanksdeclare ppc_fp128 @llvm.convert.from.fp16.ppcf128(i16)
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