| // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 2 |
| // REQUIRES: bpf-registered-target |
| // RUN: %clang -cc1 -triple bpf -disable-llvm-passes -S -emit-llvm -o - %s \ |
| // RUN: | FileCheck %s |
| |
| // Verify that preserve_static_offset does not interfere with |
| // preserve_access_index at IR generation stage. |
| |
| #define __ctx __attribute__((preserve_static_offset)) |
| #define __pai __attribute__((preserve_access_index)) |
| |
| struct foo { |
| int a; |
| } __ctx __pai; |
| |
| // CHECK-LABEL: define dso_local i32 @bar |
| // CHECK-SAME: (ptr noundef [[P:%.*]]) #[[ATTR0:[0-9]+]] { |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: [[P_ADDR:%.*]] = alloca ptr, align 8 |
| // CHECK-NEXT: store ptr [[P]], ptr [[P_ADDR]], align 8 |
| // CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr [[P_ADDR]], align 8 |
| // CHECK-NEXT: [[TMP1:%.*]] = call ptr @llvm.preserve.static.offset(ptr [[TMP0]]) |
| // CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[STRUCT_FOO:%.*]], ptr [[TMP1]], i32 0, i32 0 |
| // CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[A]], align 4 |
| // CHECK-NEXT: ret i32 [[TMP2]] |
| // |
| int bar(struct foo *p) { |
| return p->a; |
| } |
