30 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-linux-gnu -ffine-grained-bitfield-accesses \2// RUN: -emit-llvm -o - %s | FileCheck %s3// RUN: %clang_cc1 -triple riscv64-linux-gnu -ffine-grained-bitfield-accesses \4// RUN: -emit-llvm -o - %s | FileCheck %s5 6// Note: This test checks the X86-64 and RISC-V targets in order to explore7// behaviour when i8/i16 are native integer widths (X86-64) and when they're8// not (RISC-V).9 10struct S4 {11 unsigned long f1:28;12 unsigned long f2:4;13 unsigned long f3:12;14};15struct S4 a4;16 17struct S5 {18 unsigned long f1:28;19 unsigned long f2:4;20 unsigned long f3:28;21 unsigned long f4:4;22 unsigned long f5:12;23};24struct S5 a5;25 26// CHECK: %struct.S4 = type { i32, i16 }27// CHECK-NOT: %struct.S4 = type { i48 }28// CHECK: %struct.S5 = type { i32, i32, i16, [6 x i8] }29// CHECK-NOT: %struct.S5 = type { i80 }30