diff options
Diffstat (limited to 'gcc/testsuite/c-c++-common/cxxbitfields.c')
| -rw-r--r-- | gcc/testsuite/c-c++-common/cxxbitfields.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/cxxbitfields.c b/gcc/testsuite/c-c++-common/cxxbitfields.c new file mode 100644 index 00000000000..43c840b15eb --- /dev/null +++ b/gcc/testsuite/c-c++-common/cxxbitfields.c @@ -0,0 +1,18 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-O2 --param allow-store-data-races=0" } */ + +/* Test that we don't store past VAR.A. */ + +struct S +{ + volatile unsigned int a : 4; + unsigned char b; + unsigned int c : 6; +} var; + +void set_a() +{ + var.a = 12; +} + +/* { dg-final { scan-assembler-not "movl.*, var" } } */ |