xref: /llvm-project/llvm/test/CodeGen/RISCV/rvv/fround-constrained-sdnode.ll (revision 9122c5235ec85ce0c0ad337e862b006e7b349d84) 
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mtriple=riscv32 -mattr=+d,+zvfh,+v -target-abi=ilp32d \
3; RUN:     -verify-machineinstrs < %s | FileCheck %s
4; RUN: llc -mtriple=riscv64 -mattr=+d,+zvfh,+v -target-abi=lp64d \
5; RUN:     -verify-machineinstrs < %s | FileCheck %s
6
7; This file tests the code generation for `llvm.experimental.constrained.round.*` on scalable vector type.
8
9define <vscale x 1 x half> @round_nxv1f16(<vscale x 1 x half> %x) strictfp {
10; CHECK-LABEL: round_nxv1f16:
11; CHECK:       # %bb.0:
12; CHECK-NEXT:    vsetvli a0, zero, e16, mf4, ta, mu
13; CHECK-NEXT:    vmfne.vv v0, v8, v8
14; CHECK-NEXT:    lui a0, %hi(.LCPI0_0)
15; CHECK-NEXT:    flh fa5, %lo(.LCPI0_0)(a0)
16; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
17; CHECK-NEXT:    vfabs.v v9, v8
18; CHECK-NEXT:    vmflt.vf v0, v9, fa5
19; CHECK-NEXT:    fsrmi a0, 4
20; CHECK-NEXT:    vsetvli zero, zero, e16, mf4, ta, ma
21; CHECK-NEXT:    vfcvt.x.f.v v9, v8, v0.t
22; CHECK-NEXT:    fsrm a0
23; CHECK-NEXT:    vfcvt.f.x.v v9, v9, v0.t
24; CHECK-NEXT:    vsetvli zero, zero, e16, mf4, ta, mu
25; CHECK-NEXT:    vfsgnj.vv v8, v9, v8, v0.t
26; CHECK-NEXT:    ret
27  %a = call <vscale x 1 x half> @llvm.experimental.constrained.round.nxv1f16(<vscale x 1 x half> %x, metadata !"fpexcept.strict")
28  ret <vscale x 1 x half> %a
29}
30declare <vscale x 1 x half> @llvm.experimental.constrained.round.nxv1f16(<vscale x 1 x half>, metadata)
31
32define <vscale x 2 x half> @round_nxv2f16(<vscale x 2 x half> %x) strictfp {
33; CHECK-LABEL: round_nxv2f16:
34; CHECK:       # %bb.0:
35; CHECK-NEXT:    vsetvli a0, zero, e16, mf2, ta, mu
36; CHECK-NEXT:    vmfne.vv v0, v8, v8
37; CHECK-NEXT:    lui a0, %hi(.LCPI1_0)
38; CHECK-NEXT:    flh fa5, %lo(.LCPI1_0)(a0)
39; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
40; CHECK-NEXT:    vfabs.v v9, v8
41; CHECK-NEXT:    vmflt.vf v0, v9, fa5
42; CHECK-NEXT:    fsrmi a0, 4
43; CHECK-NEXT:    vsetvli zero, zero, e16, mf2, ta, ma
44; CHECK-NEXT:    vfcvt.x.f.v v9, v8, v0.t
45; CHECK-NEXT:    fsrm a0
46; CHECK-NEXT:    vfcvt.f.x.v v9, v9, v0.t
47; CHECK-NEXT:    vsetvli zero, zero, e16, mf2, ta, mu
48; CHECK-NEXT:    vfsgnj.vv v8, v9, v8, v0.t
49; CHECK-NEXT:    ret
50  %a = call <vscale x 2 x half> @llvm.experimental.constrained.round.nxv2f16(<vscale x 2 x half> %x, metadata !"fpexcept.strict")
51  ret <vscale x 2 x half> %a
52}
53declare <vscale x 2 x half> @llvm.experimental.constrained.round.nxv2f16(<vscale x 2 x half>, metadata)
54
55define <vscale x 4 x half> @round_nxv4f16(<vscale x 4 x half> %x) strictfp {
56; CHECK-LABEL: round_nxv4f16:
57; CHECK:       # %bb.0:
58; CHECK-NEXT:    vsetvli a0, zero, e16, m1, ta, mu
59; CHECK-NEXT:    vmfne.vv v0, v8, v8
60; CHECK-NEXT:    lui a0, %hi(.LCPI2_0)
61; CHECK-NEXT:    flh fa5, %lo(.LCPI2_0)(a0)
62; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
63; CHECK-NEXT:    vfabs.v v9, v8
64; CHECK-NEXT:    vmflt.vf v0, v9, fa5
65; CHECK-NEXT:    fsrmi a0, 4
66; CHECK-NEXT:    vsetvli zero, zero, e16, m1, ta, ma
67; CHECK-NEXT:    vfcvt.x.f.v v9, v8, v0.t
68; CHECK-NEXT:    fsrm a0
69; CHECK-NEXT:    vfcvt.f.x.v v9, v9, v0.t
70; CHECK-NEXT:    vsetvli zero, zero, e16, m1, ta, mu
71; CHECK-NEXT:    vfsgnj.vv v8, v9, v8, v0.t
72; CHECK-NEXT:    ret
73  %a = call <vscale x 4 x half> @llvm.experimental.constrained.round.nxv4f16(<vscale x 4 x half> %x, metadata !"fpexcept.strict")
74  ret <vscale x 4 x half> %a
75}
76declare <vscale x 4 x half> @llvm.experimental.constrained.round.nxv4f16(<vscale x 4 x half>, metadata)
77
78define <vscale x 8 x half> @round_nxv8f16(<vscale x 8 x half> %x) strictfp {
79; CHECK-LABEL: round_nxv8f16:
80; CHECK:       # %bb.0:
81; CHECK-NEXT:    vsetvli a0, zero, e16, m2, ta, mu
82; CHECK-NEXT:    vmfne.vv v0, v8, v8
83; CHECK-NEXT:    lui a0, %hi(.LCPI3_0)
84; CHECK-NEXT:    flh fa5, %lo(.LCPI3_0)(a0)
85; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
86; CHECK-NEXT:    vfabs.v v10, v8
87; CHECK-NEXT:    vmflt.vf v0, v10, fa5
88; CHECK-NEXT:    fsrmi a0, 4
89; CHECK-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
90; CHECK-NEXT:    vfcvt.x.f.v v10, v8, v0.t
91; CHECK-NEXT:    fsrm a0
92; CHECK-NEXT:    vfcvt.f.x.v v10, v10, v0.t
93; CHECK-NEXT:    vsetvli zero, zero, e16, m2, ta, mu
94; CHECK-NEXT:    vfsgnj.vv v8, v10, v8, v0.t
95; CHECK-NEXT:    ret
96  %a = call <vscale x 8 x half> @llvm.experimental.constrained.round.nxv8f16(<vscale x 8 x half> %x, metadata !"fpexcept.strict")
97  ret <vscale x 8 x half> %a
98}
99declare <vscale x 8 x half> @llvm.experimental.constrained.round.nxv8f16(<vscale x 8 x half>, metadata)
100
101define <vscale x 16 x half> @round_nxv16f16(<vscale x 16 x half> %x) strictfp {
102; CHECK-LABEL: round_nxv16f16:
103; CHECK:       # %bb.0:
104; CHECK-NEXT:    vsetvli a0, zero, e16, m4, ta, mu
105; CHECK-NEXT:    vmfne.vv v0, v8, v8
106; CHECK-NEXT:    lui a0, %hi(.LCPI4_0)
107; CHECK-NEXT:    flh fa5, %lo(.LCPI4_0)(a0)
108; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
109; CHECK-NEXT:    vfabs.v v12, v8
110; CHECK-NEXT:    vmflt.vf v0, v12, fa5
111; CHECK-NEXT:    fsrmi a0, 4
112; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
113; CHECK-NEXT:    vfcvt.x.f.v v12, v8, v0.t
114; CHECK-NEXT:    fsrm a0
115; CHECK-NEXT:    vfcvt.f.x.v v12, v12, v0.t
116; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, mu
117; CHECK-NEXT:    vfsgnj.vv v8, v12, v8, v0.t
118; CHECK-NEXT:    ret
119  %a = call <vscale x 16 x half> @llvm.experimental.constrained.round.nxv16f16(<vscale x 16 x half> %x, metadata !"fpexcept.strict")
120  ret <vscale x 16 x half> %a
121}
122declare <vscale x 16 x half> @llvm.experimental.constrained.round.nxv16f16(<vscale x 16 x half>, metadata)
123
124define <vscale x 32 x half> @round_nxv32f16(<vscale x 32 x half> %x) strictfp {
125; CHECK-LABEL: round_nxv32f16:
126; CHECK:       # %bb.0:
127; CHECK-NEXT:    vsetvli a0, zero, e16, m8, ta, mu
128; CHECK-NEXT:    vmfne.vv v0, v8, v8
129; CHECK-NEXT:    lui a0, %hi(.LCPI5_0)
130; CHECK-NEXT:    flh fa5, %lo(.LCPI5_0)(a0)
131; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
132; CHECK-NEXT:    vfabs.v v16, v8
133; CHECK-NEXT:    vmflt.vf v0, v16, fa5
134; CHECK-NEXT:    fsrmi a0, 4
135; CHECK-NEXT:    vsetvli zero, zero, e16, m8, ta, ma
136; CHECK-NEXT:    vfcvt.x.f.v v16, v8, v0.t
137; CHECK-NEXT:    fsrm a0
138; CHECK-NEXT:    vfcvt.f.x.v v16, v16, v0.t
139; CHECK-NEXT:    vsetvli zero, zero, e16, m8, ta, mu
140; CHECK-NEXT:    vfsgnj.vv v8, v16, v8, v0.t
141; CHECK-NEXT:    ret
142  %a = call <vscale x 32 x half> @llvm.experimental.constrained.round.nxv32f16(<vscale x 32 x half> %x, metadata !"fpexcept.strict")
143  ret <vscale x 32 x half> %a
144}
145declare <vscale x 32 x half> @llvm.experimental.constrained.round.nxv32f16(<vscale x 32 x half>, metadata)
146
147define <vscale x 1 x float> @round_nxv1f32(<vscale x 1 x float> %x) strictfp {
148; CHECK-LABEL: round_nxv1f32:
149; CHECK:       # %bb.0:
150; CHECK-NEXT:    vsetvli a0, zero, e32, mf2, ta, mu
151; CHECK-NEXT:    vmfne.vv v0, v8, v8
152; CHECK-NEXT:    lui a0, 307200
153; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
154; CHECK-NEXT:    fmv.w.x fa5, a0
155; CHECK-NEXT:    vfabs.v v9, v8
156; CHECK-NEXT:    vmflt.vf v0, v9, fa5
157; CHECK-NEXT:    fsrmi a0, 4
158; CHECK-NEXT:    vsetvli zero, zero, e32, mf2, ta, ma
159; CHECK-NEXT:    vfcvt.x.f.v v9, v8, v0.t
160; CHECK-NEXT:    fsrm a0
161; CHECK-NEXT:    vfcvt.f.x.v v9, v9, v0.t
162; CHECK-NEXT:    vsetvli zero, zero, e32, mf2, ta, mu
163; CHECK-NEXT:    vfsgnj.vv v8, v9, v8, v0.t
164; CHECK-NEXT:    ret
165  %a = call <vscale x 1 x float> @llvm.experimental.constrained.round.nxv1f32(<vscale x 1 x float> %x, metadata !"fpexcept.strict")
166  ret <vscale x 1 x float> %a
167}
168declare <vscale x 1 x float> @llvm.experimental.constrained.round.nxv1f32(<vscale x 1 x float>, metadata)
169
170define <vscale x 2 x float> @round_nxv2f32(<vscale x 2 x float> %x) strictfp {
171; CHECK-LABEL: round_nxv2f32:
172; CHECK:       # %bb.0:
173; CHECK-NEXT:    vsetvli a0, zero, e32, m1, ta, mu
174; CHECK-NEXT:    vmfne.vv v0, v8, v8
175; CHECK-NEXT:    lui a0, 307200
176; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
177; CHECK-NEXT:    fmv.w.x fa5, a0
178; CHECK-NEXT:    vfabs.v v9, v8
179; CHECK-NEXT:    vmflt.vf v0, v9, fa5
180; CHECK-NEXT:    fsrmi a0, 4
181; CHECK-NEXT:    vsetvli zero, zero, e32, m1, ta, ma
182; CHECK-NEXT:    vfcvt.x.f.v v9, v8, v0.t
183; CHECK-NEXT:    fsrm a0
184; CHECK-NEXT:    vfcvt.f.x.v v9, v9, v0.t
185; CHECK-NEXT:    vsetvli zero, zero, e32, m1, ta, mu
186; CHECK-NEXT:    vfsgnj.vv v8, v9, v8, v0.t
187; CHECK-NEXT:    ret
188  %a = call <vscale x 2 x float> @llvm.experimental.constrained.round.nxv2f32(<vscale x 2 x float> %x, metadata !"fpexcept.strict")
189  ret <vscale x 2 x float> %a
190}
191declare <vscale x 2 x float> @llvm.experimental.constrained.round.nxv2f32(<vscale x 2 x float>, metadata)
192
193define <vscale x 4 x float> @round_nxv4f32(<vscale x 4 x float> %x) strictfp {
194; CHECK-LABEL: round_nxv4f32:
195; CHECK:       # %bb.0:
196; CHECK-NEXT:    vsetvli a0, zero, e32, m2, ta, mu
197; CHECK-NEXT:    vmfne.vv v0, v8, v8
198; CHECK-NEXT:    lui a0, 307200
199; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
200; CHECK-NEXT:    fmv.w.x fa5, a0
201; CHECK-NEXT:    vfabs.v v10, v8
202; CHECK-NEXT:    vmflt.vf v0, v10, fa5
203; CHECK-NEXT:    fsrmi a0, 4
204; CHECK-NEXT:    vsetvli zero, zero, e32, m2, ta, ma
205; CHECK-NEXT:    vfcvt.x.f.v v10, v8, v0.t
206; CHECK-NEXT:    fsrm a0
207; CHECK-NEXT:    vfcvt.f.x.v v10, v10, v0.t
208; CHECK-NEXT:    vsetvli zero, zero, e32, m2, ta, mu
209; CHECK-NEXT:    vfsgnj.vv v8, v10, v8, v0.t
210; CHECK-NEXT:    ret
211  %a = call <vscale x 4 x float> @llvm.experimental.constrained.round.nxv4f32(<vscale x 4 x float> %x, metadata !"fpexcept.strict")
212  ret <vscale x 4 x float> %a
213}
214declare <vscale x 4 x float> @llvm.experimental.constrained.round.nxv4f32(<vscale x 4 x float>, metadata)
215
216define <vscale x 8 x float> @round_nxv8f32(<vscale x 8 x float> %x) strictfp {
217; CHECK-LABEL: round_nxv8f32:
218; CHECK:       # %bb.0:
219; CHECK-NEXT:    vsetvli a0, zero, e32, m4, ta, mu
220; CHECK-NEXT:    vmfne.vv v0, v8, v8
221; CHECK-NEXT:    lui a0, 307200
222; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
223; CHECK-NEXT:    fmv.w.x fa5, a0
224; CHECK-NEXT:    vfabs.v v12, v8
225; CHECK-NEXT:    vmflt.vf v0, v12, fa5
226; CHECK-NEXT:    fsrmi a0, 4
227; CHECK-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
228; CHECK-NEXT:    vfcvt.x.f.v v12, v8, v0.t
229; CHECK-NEXT:    fsrm a0
230; CHECK-NEXT:    vfcvt.f.x.v v12, v12, v0.t
231; CHECK-NEXT:    vsetvli zero, zero, e32, m4, ta, mu
232; CHECK-NEXT:    vfsgnj.vv v8, v12, v8, v0.t
233; CHECK-NEXT:    ret
234  %a = call <vscale x 8 x float> @llvm.experimental.constrained.round.nxv8f32(<vscale x 8 x float> %x, metadata !"fpexcept.strict")
235  ret <vscale x 8 x float> %a
236}
237declare <vscale x 8 x float> @llvm.experimental.constrained.round.nxv8f32(<vscale x 8 x float>, metadata)
238
239define <vscale x 16 x float> @round_nxv16f32(<vscale x 16 x float> %x) strictfp {
240; CHECK-LABEL: round_nxv16f32:
241; CHECK:       # %bb.0:
242; CHECK-NEXT:    vsetvli a0, zero, e32, m8, ta, mu
243; CHECK-NEXT:    vmfne.vv v0, v8, v8
244; CHECK-NEXT:    lui a0, 307200
245; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
246; CHECK-NEXT:    fmv.w.x fa5, a0
247; CHECK-NEXT:    vfabs.v v16, v8
248; CHECK-NEXT:    vmflt.vf v0, v16, fa5
249; CHECK-NEXT:    fsrmi a0, 4
250; CHECK-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
251; CHECK-NEXT:    vfcvt.x.f.v v16, v8, v0.t
252; CHECK-NEXT:    fsrm a0
253; CHECK-NEXT:    vfcvt.f.x.v v16, v16, v0.t
254; CHECK-NEXT:    vsetvli zero, zero, e32, m8, ta, mu
255; CHECK-NEXT:    vfsgnj.vv v8, v16, v8, v0.t
256; CHECK-NEXT:    ret
257  %a = call <vscale x 16 x float> @llvm.experimental.constrained.round.nxv16f32(<vscale x 16 x float> %x, metadata !"fpexcept.strict")
258  ret <vscale x 16 x float> %a
259}
260declare <vscale x 16 x float> @llvm.experimental.constrained.round.nxv16f32(<vscale x 16 x float>, metadata)
261
262define <vscale x 1 x double> @round_nxv1f64(<vscale x 1 x double> %x) strictfp {
263; CHECK-LABEL: round_nxv1f64:
264; CHECK:       # %bb.0:
265; CHECK-NEXT:    vsetvli a0, zero, e64, m1, ta, mu
266; CHECK-NEXT:    vmfne.vv v0, v8, v8
267; CHECK-NEXT:    lui a0, %hi(.LCPI11_0)
268; CHECK-NEXT:    fld fa5, %lo(.LCPI11_0)(a0)
269; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
270; CHECK-NEXT:    vfabs.v v9, v8
271; CHECK-NEXT:    vmflt.vf v0, v9, fa5
272; CHECK-NEXT:    fsrmi a0, 4
273; CHECK-NEXT:    vsetvli zero, zero, e64, m1, ta, ma
274; CHECK-NEXT:    vfcvt.x.f.v v9, v8, v0.t
275; CHECK-NEXT:    fsrm a0
276; CHECK-NEXT:    vfcvt.f.x.v v9, v9, v0.t
277; CHECK-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
278; CHECK-NEXT:    vfsgnj.vv v8, v9, v8, v0.t
279; CHECK-NEXT:    ret
280  %a = call <vscale x 1 x double> @llvm.experimental.constrained.round.nxv1f64(<vscale x 1 x double> %x, metadata !"fpexcept.strict")
281  ret <vscale x 1 x double> %a
282}
283declare <vscale x 1 x double> @llvm.experimental.constrained.round.nxv1f64(<vscale x 1 x double>, metadata)
284
285define <vscale x 2 x double> @round_nxv2f64(<vscale x 2 x double> %x) strictfp {
286; CHECK-LABEL: round_nxv2f64:
287; CHECK:       # %bb.0:
288; CHECK-NEXT:    vsetvli a0, zero, e64, m2, ta, mu
289; CHECK-NEXT:    vmfne.vv v0, v8, v8
290; CHECK-NEXT:    lui a0, %hi(.LCPI12_0)
291; CHECK-NEXT:    fld fa5, %lo(.LCPI12_0)(a0)
292; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
293; CHECK-NEXT:    vfabs.v v10, v8
294; CHECK-NEXT:    vmflt.vf v0, v10, fa5
295; CHECK-NEXT:    fsrmi a0, 4
296; CHECK-NEXT:    vsetvli zero, zero, e64, m2, ta, ma
297; CHECK-NEXT:    vfcvt.x.f.v v10, v8, v0.t
298; CHECK-NEXT:    fsrm a0
299; CHECK-NEXT:    vfcvt.f.x.v v10, v10, v0.t
300; CHECK-NEXT:    vsetvli zero, zero, e64, m2, ta, mu
301; CHECK-NEXT:    vfsgnj.vv v8, v10, v8, v0.t
302; CHECK-NEXT:    ret
303  %a = call <vscale x 2 x double> @llvm.experimental.constrained.round.nxv2f64(<vscale x 2 x double> %x, metadata !"fpexcept.strict")
304  ret <vscale x 2 x double> %a
305}
306declare <vscale x 2 x double> @llvm.experimental.constrained.round.nxv2f64(<vscale x 2 x double>, metadata)
307
308define <vscale x 4 x double> @round_nxv4f64(<vscale x 4 x double> %x) strictfp {
309; CHECK-LABEL: round_nxv4f64:
310; CHECK:       # %bb.0:
311; CHECK-NEXT:    vsetvli a0, zero, e64, m4, ta, mu
312; CHECK-NEXT:    vmfne.vv v0, v8, v8
313; CHECK-NEXT:    lui a0, %hi(.LCPI13_0)
314; CHECK-NEXT:    fld fa5, %lo(.LCPI13_0)(a0)
315; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
316; CHECK-NEXT:    vfabs.v v12, v8
317; CHECK-NEXT:    vmflt.vf v0, v12, fa5
318; CHECK-NEXT:    fsrmi a0, 4
319; CHECK-NEXT:    vsetvli zero, zero, e64, m4, ta, ma
320; CHECK-NEXT:    vfcvt.x.f.v v12, v8, v0.t
321; CHECK-NEXT:    fsrm a0
322; CHECK-NEXT:    vfcvt.f.x.v v12, v12, v0.t
323; CHECK-NEXT:    vsetvli zero, zero, e64, m4, ta, mu
324; CHECK-NEXT:    vfsgnj.vv v8, v12, v8, v0.t
325; CHECK-NEXT:    ret
326  %a = call <vscale x 4 x double> @llvm.experimental.constrained.round.nxv4f64(<vscale x 4 x double> %x, metadata !"fpexcept.strict")
327  ret <vscale x 4 x double> %a
328}
329declare <vscale x 4 x double> @llvm.experimental.constrained.round.nxv4f64(<vscale x 4 x double>, metadata)
330
331define <vscale x 8 x double> @round_nxv8f64(<vscale x 8 x double> %x) strictfp {
332; CHECK-LABEL: round_nxv8f64:
333; CHECK:       # %bb.0:
334; CHECK-NEXT:    vsetvli a0, zero, e64, m8, ta, mu
335; CHECK-NEXT:    vmfne.vv v0, v8, v8
336; CHECK-NEXT:    lui a0, %hi(.LCPI14_0)
337; CHECK-NEXT:    fld fa5, %lo(.LCPI14_0)(a0)
338; CHECK-NEXT:    vfadd.vv v8, v8, v8, v0.t
339; CHECK-NEXT:    vfabs.v v16, v8
340; CHECK-NEXT:    vmflt.vf v0, v16, fa5
341; CHECK-NEXT:    fsrmi a0, 4
342; CHECK-NEXT:    vsetvli zero, zero, e64, m8, ta, ma
343; CHECK-NEXT:    vfcvt.x.f.v v16, v8, v0.t
344; CHECK-NEXT:    fsrm a0
345; CHECK-NEXT:    vfcvt.f.x.v v16, v16, v0.t
346; CHECK-NEXT:    vsetvli zero, zero, e64, m8, ta, mu
347; CHECK-NEXT:    vfsgnj.vv v8, v16, v8, v0.t
348; CHECK-NEXT:    ret
349  %a = call <vscale x 8 x double> @llvm.experimental.constrained.round.nxv8f64(<vscale x 8 x double> %x, metadata !"fpexcept.strict")
350  ret <vscale x 8 x double> %a
351}
352declare <vscale x 8 x double> @llvm.experimental.constrained.round.nxv8f64(<vscale x 8 x double>, metadata)
353