diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c new file mode 100644 index 000000000..7a022eac8 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c @@ -0,0 +1,48 @@ +/* PR middle-end/48335 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fno-tree-sra" } */ + +typedef long long T __attribute__((may_alias)); + +struct S +{ + _Complex float d __attribute__((aligned (8))); +}; + +void bar (struct S); + +void +f1 (T x) +{ + struct S s; + *(T *) &s.d = x; + __real__ s.d *= 7.0; + bar (s); +} + +void +f2 (int x) +{ + struct S s = { .d = 0.0f }; + *(char *) &s.d = x; + __real__ s.d *= 7.0; + bar (s); +} + +void +f3 (int x) +{ + struct S s = { .d = 0.0f }; + ((char *) &s.d)[2] = x; + __real__ s.d *= 7.0; + bar (s); +} + +void +f4 (int x, int y) +{ + struct S s = { .d = 0.0f }; + ((char *) &s.d)[y] = x; + __real__ s.d *= 7.0; + bar (s); +} |