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comparison test/CodeGen/AMDGPU/fp16_to_fp.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
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84:f3e34b893a5f 95:afa8332a0e37
1 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
2 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
3
4 declare float @llvm.convert.from.fp16.f32(i16) nounwind readnone
5 declare double @llvm.convert.from.fp16.f64(i16) nounwind readnone
6
7 ; SI-LABEL: {{^}}test_convert_fp16_to_fp32:
8 ; SI: buffer_load_ushort [[VAL:v[0-9]+]]
9 ; SI: v_cvt_f32_f16_e32 [[RESULT:v[0-9]+]], [[VAL]]
10 ; SI: buffer_store_dword [[RESULT]]
11 define void @test_convert_fp16_to_fp32(float addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in) nounwind {
12 %val = load i16, i16 addrspace(1)* %in, align 2
13 %cvt = call float @llvm.convert.from.fp16.f32(i16 %val) nounwind readnone
14 store float %cvt, float addrspace(1)* %out, align 4
15 ret void
16 }
17
18
19 ; SI-LABEL: {{^}}test_convert_fp16_to_fp64:
20 ; SI: buffer_load_ushort [[VAL:v[0-9]+]]
21 ; SI: v_cvt_f32_f16_e32 [[RESULT32:v[0-9]+]], [[VAL]]
22 ; SI: v_cvt_f64_f32_e32 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[RESULT32]]
23 ; SI: buffer_store_dwordx2 [[RESULT]]
24 define void @test_convert_fp16_to_fp64(double addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in) nounwind {
25 %val = load i16, i16 addrspace(1)* %in, align 2
26 %cvt = call double @llvm.convert.from.fp16.f64(i16 %val) nounwind readnone
27 store double %cvt, double addrspace(1)* %out, align 4
28 ret void
29 }