1 ; RUN: llc -march=bpfel -mcpu=v4 -verify-machineinstrs -show-mc-encoding < %s | FileCheck %s
22 ; clang -target bpf -O2 -mcpu=v4 -S -emit-llvm t.c
24 ; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
25 define dso_local i16 @f1(i32 noundef %a) local_unnamed_addr #0 {
27 %conv = trunc i32 %a to i8
28 %conv1 = sext i8 %conv to i16
31 ; CHECK: w0 = (s8)w1 # encoding: [0xbc,0x10,0x08,0x00,0x00,0x00,0x00,0x00]
33 ; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
34 define dso_local i32 @f2(i32 noundef %a) local_unnamed_addr #0 {
36 %sext = shl i32 %a, 16
37 %conv1 = ashr exact i32 %sext, 16
40 ; CHECK: w0 = (s16)w1 # encoding: [0xbc,0x10,0x10,0x00,0x00,0x00,0x00,0x00]
42 ; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
43 define dso_local i64 @f3(i32 noundef %a) local_unnamed_addr #0 {
45 %conv = zext i32 %a to i64
46 %sext = shl i64 %conv, 56
47 %conv1 = ashr exact i64 %sext, 56
50 ; CHECK: r0 = (s8)r1 # encoding: [0xbf,0x10,0x08,0x00,0x00,0x00,0x00,0x00]
52 ; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
53 define dso_local i64 @f4(i32 noundef %a) local_unnamed_addr #0 {
55 %conv = zext i32 %a to i64
56 %sext = shl i64 %conv, 48
57 %conv1 = ashr exact i64 %sext, 48
60 ; CHECK: r0 = (s16)r1 # encoding: [0xbf,0x10,0x10,0x00,0x00,0x00,0x00,0x00]
62 ; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
63 define dso_local i64 @f5(i32 noundef %a) local_unnamed_addr #0 {
65 %conv = sext i32 %a to i64
68 ; CHECK: r0 = (s32)r1 # encoding: [0xbf,0x10,0x20,0x00,0x00,0x00,0x00,0x00]
70 ; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
71 define dso_local i64 @f6(i64 noundef %a) local_unnamed_addr #0 {
73 %sext = shl i64 %a, 32
74 %conv1 = ashr exact i64 %sext, 32
77 ; CHECK: r0 = (s32)r1 # encoding: [0xbf,0x10,0x20,0x00,0x00,0x00,0x00,0x00]
79 attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="v4" }
81 !llvm.module.flags = !{!0, !1}
84 !0 = !{i32 1, !"wchar_size", i32 4}
85 !1 = !{i32 7, !"frame-pointer", i32 2}
86 !2 = !{!"clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4e1ca21db4162f0c3cde98f730b08ed538fff2a4)"}