29 lines · c
1// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 22// REQUIRES: bpf-registered-target3// RUN: %clang_cc1 -triple bpf -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s4 5// Verify that preserve_static_offset does not interfere with6// preserve_access_index at IR generation stage.7 8#define __ctx __attribute__((preserve_static_offset))9#define __pai __attribute__((preserve_access_index))10 11struct foo {12 int a;13} __ctx __pai;14 15// CHECK-LABEL: define dso_local i32 @bar16// CHECK-SAME: (ptr noundef [[P:%.*]]) #[[ATTR0:[0-9]+]] {17// CHECK-NEXT: entry:18// CHECK-NEXT: [[P_ADDR:%.*]] = alloca ptr, align 819// CHECK-NEXT: store ptr [[P]], ptr [[P_ADDR]], align 820// CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr [[P_ADDR]], align 821// CHECK-NEXT: [[TMP1:%.*]] = call ptr @llvm.preserve.static.offset(ptr [[TMP0]])22// CHECK-NEXT: [[A:%.*]] = getelementptr inbounds nuw [[STRUCT_FOO:%.*]], ptr [[TMP1]], i32 0, i32 023// CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[A]], align 424// CHECK-NEXT: ret i32 [[TMP2]]25//26int bar(struct foo *p) {27 return p->a;28}29