xref: /llvm-project/llvm/test/CodeGen/AArch64/GlobalISel/irtranslator-convert-fp16-intrinsics.ll (revision 97b5fb78d137a44bec104ba073dd620008ed7abb)
1; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2; RUN: llc -mtriple=aarch64-- -mcpu=falkor -mattr=+lse -O0 -aarch64-enable-atomic-cfg-tidy=0 -stop-after=irtranslator -global-isel -verify-machineinstrs %s -o - | FileCheck %s
3
4define i16 @convert_to_fp16(float %src) {
5  ; CHECK-LABEL: name: convert_to_fp16
6  ; CHECK: bb.1 (%ir-block.0):
7  ; CHECK:   liveins: $s0
8  ; CHECK:   [[COPY:%[0-9]+]]:_(s32) = COPY $s0
9  ; CHECK:   [[FPTRUNC:%[0-9]+]]:_(s16) = G_FPTRUNC [[COPY]](s32)
10  ; CHECK:   [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[FPTRUNC]](s16)
11  ; CHECK:   $w0 = COPY [[ANYEXT]](s32)
12  ; CHECK:   RET_ReallyLR implicit $w0
13  %cvt = call i16 @llvm.convert.to.fp16.f32(float %src)
14  ret i16 %cvt
15}
16
17define float @convert_from_fp16(i16 %src) {
18  ; CHECK-LABEL: name: convert_from_fp16
19  ; CHECK: bb.1 (%ir-block.0):
20  ; CHECK:   liveins: $w0
21  ; CHECK:   [[COPY:%[0-9]+]]:_(s32) = COPY $w0
22  ; CHECK:   [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
23  ; CHECK:   [[FPEXT:%[0-9]+]]:_(s32) = G_FPEXT [[TRUNC]](s16)
24  ; CHECK:   $s0 = COPY [[FPEXT]](s32)
25  ; CHECK:   RET_ReallyLR implicit $s0
26  %cvt = call float @llvm.convert.from.fp16.f32(i16 %src)
27  ret float %cvt
28}
29
30declare i16 @llvm.convert.to.fp16.f32(float) nounwind readnone
31declare float @llvm.convert.from.fp16.f32(i16) nounwind readnone
32