derek.holloway
7502bf64a4
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105 lines
3.7 KiB
LLVM
105 lines
3.7 KiB
LLVM
; RUN: llc -mtriple=bpfel -mcpu=v4 -verify-machineinstrs -show-mc-encoding < %s | FileCheck %s
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; Source:
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; int f1(char *p) {
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; return *p;
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; }
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; int f2(short *p) {
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; return *p;
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; }
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; int f3(int *p) {
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; return *p;
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; }
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; long f4(char *p) {
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; return *p;
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; }
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; long f5(short *p) {
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; return *p;
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; }
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; long f6(int *p) {
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; return *p;
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; }
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; long f7(long *p) {
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; return *p;
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; }
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; Compilation flags:
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; clang -target bpf -O2 -S -emit-llvm t.c
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; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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define dso_local i32 @f1(ptr nocapture noundef readonly %p) local_unnamed_addr #0 {
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entry:
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%0 = load i8, ptr %p, align 1, !tbaa !3
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%conv = sext i8 %0 to i32
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ret i32 %conv
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}
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; CHECK: r0 = *(s8 *)(r1 + 0) # encoding: [0x91,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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define dso_local i32 @f2(ptr nocapture noundef readonly %p) local_unnamed_addr #0 {
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entry:
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%0 = load i16, ptr %p, align 2, !tbaa !6
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%conv = sext i16 %0 to i32
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ret i32 %conv
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}
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; CHECK: r0 = *(s16 *)(r1 + 0) # encoding: [0x89,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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define dso_local i32 @f3(ptr nocapture noundef readonly %p) local_unnamed_addr #0 {
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entry:
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%0 = load i32, ptr %p, align 4, !tbaa !8
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ret i32 %0
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}
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; CHECK: w0 = *(u32 *)(r1 + 0) # encoding: [0x61,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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define dso_local i64 @f4(ptr nocapture noundef readonly %p) local_unnamed_addr #0 {
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entry:
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%0 = load i8, ptr %p, align 1, !tbaa !3
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%conv = sext i8 %0 to i64
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ret i64 %conv
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}
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; CHECK: r0 = *(s8 *)(r1 + 0) # encoding: [0x91,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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define dso_local i64 @f5(ptr nocapture noundef readonly %p) local_unnamed_addr #0 {
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entry:
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%0 = load i16, ptr %p, align 2, !tbaa !6
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%conv = sext i16 %0 to i64
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ret i64 %conv
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}
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; CHECK: r0 = *(s16 *)(r1 + 0) # encoding: [0x89,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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define dso_local i64 @f6(ptr nocapture noundef readonly %p) local_unnamed_addr #0 {
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entry:
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%0 = load i32, ptr %p, align 4, !tbaa !8
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%conv = sext i32 %0 to i64
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ret i64 %conv
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}
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; CHECK: r0 = *(s32 *)(r1 + 0) # encoding: [0x81,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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define dso_local i64 @f7(ptr nocapture noundef readonly %p) local_unnamed_addr #0 {
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entry:
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%0 = load i64, ptr %p, align 8, !tbaa !10
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ret i64 %0
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}
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; CHECK: r0 = *(u64 *)(r1 + 0) # encoding: [0x79,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
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!llvm.module.flags = !{!0, !1}
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!llvm.ident = !{!2}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 7, !"frame-pointer", i32 2}
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!2 = !{!"clang version 17.0.0 (https://github.com/llvm/llvm-project.git 1bf3221bf1e35d953a0b6783bc6e694cb9b0ceae)"}
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!3 = !{!4, !4, i64 0}
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!4 = !{!"omnipotent char", !5, i64 0}
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!5 = !{!"Simple C/C++ TBAA"}
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!6 = !{!7, !7, i64 0}
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!7 = !{!"short", !4, i64 0}
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!8 = !{!9, !9, i64 0}
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!9 = !{!"int", !4, i64 0}
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!10 = !{!11, !11, i64 0}
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!11 = !{!"long", !4, i64 0}
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