clang/test/CodeGenCXX/2009-12-23-MissingSext.cpp

   1 // RUN: %clang_cc1 %s -triple x86_64-unknown-unknown -emit-llvm -o - | FileCheck %s
   2 // The store of p.y into the temporary was not
   3 // getting extended to 32 bits, so uninitialized
   4 // bits of the temporary were used.  7366161.
   5 struct foo {
   6   char x:8;
   7   signed int y:24;
   8 };
   9 int bar(struct foo p, int x) {
  10 // CHECK: bar
  11 // CHECK: %[[val:.*]] = load i32, ptr {{.*}}
  12 // CHECK-NEXT:          ashr i32 %[[val]]
  13 // CHECK:             = load i32, ptr {{.*}}
  14 // CHECK:             = load i32, ptr {{.*}}
  15 // CHECK: %[[val:.*]] = load i32, ptr {{.*}}
  16 // CHECK-NEXT:          ashr i32 %[[val]]
  17   x = (p.y > x ? x : p.y);
  18   return x;
  19 // CHECK: ret
  20 }