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1; RUN: opt --bpf-check-and-opt-ir -mtriple=bpf-pc-linux -S -o - %s | FileCheck %s2;3; Check that getelementptr.and.load unroll can skip 'inbounds' flag.4;5; Source:6; #define __ctx __attribute__((preserve_static_offset))7; 8; struct bar {9; int aa;10; int bb;11; };12; 13; struct foo {14; int a;15; struct bar b;16; } __ctx;17; 18; void buz(struct foo *p) {19; p->b.bb = 42;20; }21;22; Compilation flag:23; clang -cc1 -O2 -triple bpf -S -emit-llvm -disable-llvm-passes -o - \24; | opt -passes=sroa,bpf-preserve-static-offset -S -o -25 26%struct.foo = type { i32, %struct.bar }27%struct.bar = type { i32, i32 }28 29; Function Attrs: nounwind30define dso_local void @buz(ptr noundef %p) #0 {31entry:32 call void (i32, ptr, i1, i8, i8, i8, i1, ...)33 @llvm.bpf.getelementptr.and.store.i3234 (i32 42,35 ptr writeonly elementtype(%struct.foo) %p,36 i1 false, i8 0, i8 1, i8 2, i1 false, i32 immarg 0, i32 immarg 1, i32 immarg 1)37 #3, !tbaa !238 ret void39}40 41; CHECK: define dso_local void @buz(ptr noundef %[[p:.*]])42; CHECK: %[[v2:.*]] = getelementptr %struct.foo, ptr %[[p]], i32 0, i32 1, i32 143; CHECK: store i32 42, ptr %[[v2]], align 444; CHECK: ret void45 46; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)47declare ptr @llvm.preserve.static.offset(ptr readnone) #148 49; Function Attrs: nocallback nofree nounwind willreturn50declare void @llvm.bpf.getelementptr.and.store.i32(i32, ptr nocapture, i1 immarg, i8 immarg, i8 immarg, i8 immarg, i1 immarg, ...) #251 52attributes #0 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" }53attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }54attributes #2 = { nocallback nofree nounwind willreturn }55attributes #3 = { memory(argmem: write) }56 57!llvm.module.flags = !{!0}58!llvm.ident = !{!1}59 60!0 = !{i32 1, !"wchar_size", i32 4}61!1 = !{!"clang"}62!2 = !{!3, !4, i64 8}63!3 = !{!"foo", !4, i64 0, !7, i64 4}64!4 = !{!"int", !5, i64 0}65!5 = !{!"omnipotent char", !6, i64 0}66!6 = !{!"Simple C/C++ TBAA"}67!7 = !{!"bar", !4, i64 0, !4, i64 4}68