clang/test/CodeGen/bitfield-promote.c

   1 // RUN: %clang -O3 -emit-llvm -S -o - %s | FileCheck %s
   2
   3 long long f0(void) {
   4  struct { unsigned f0 : 32; } x = { 18 };
   5  return (long long) (x.f0 - (int) 22);
   6 }
   7 // CHECK: @f0()
   8 // CHECK: ret i64 4294967292
   9
  10 long long f1(void) {
  11  struct { unsigned f0 : 31; } x = { 18 };
  12  return (long long) (x.f0 - (int) 22);
  13 }
  14 // CHECK: @f1()
  15 // CHECK: ret i64 -4
  16
  17 long long f2(void) {
  18  struct { unsigned f0     ; } x = { 18 };
  19  return (long long) (x.f0 - (int) 22);
  20 }
  21 // CHECK: @f2()
  22 // CHECK: ret i64 4294967292