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author | Sam Elliott <selliott@lowrisc.org> | 2019-10-09 11:01:46 +0000 |
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committer | Sam Elliott <selliott@lowrisc.org> | 2019-10-09 11:01:46 +0000 |
commit | 7680b39a7d6ca81a9b04f85c62c7d1fd9bc4c807 (patch) | |
tree | 9fdfeaed7778d64bc263a073e30286f121ffd799 /SingleSource/Regression/C/gcc-c-torture/execute/pr40022.c | |
parent | 26f2bc886b4fe7d9caa4948e8ada2ce2fcc76faf (diff) |
Add GCC Torture Suite Sources
git-svn-id: https://llvm.org/svn/llvm-project/test-suite/trunk@374156 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'SingleSource/Regression/C/gcc-c-torture/execute/pr40022.c')
-rw-r--r-- | SingleSource/Regression/C/gcc-c-torture/execute/pr40022.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/SingleSource/Regression/C/gcc-c-torture/execute/pr40022.c b/SingleSource/Regression/C/gcc-c-torture/execute/pr40022.c new file mode 100644 index 00000000..6dd04e2b --- /dev/null +++ b/SingleSource/Regression/C/gcc-c-torture/execute/pr40022.c @@ -0,0 +1,50 @@ +extern void abort (void); + +struct A +{ + struct A *a; +}; + +struct B +{ + struct A *b; +}; + +__attribute__((noinline)) +struct A * +foo (struct A *x) +{ + asm volatile ("" : : "g" (x) : "memory"); + return x; +} + +__attribute__((noinline)) +void +bar (struct B *w, struct A *x, struct A *y, struct A *z) +{ + struct A **c; + c = &w->b; + *c = foo (x); + while (*c) + c = &(*c)->a; + *c = foo (y); + while (*c) + c = &(*c)->a; + *c = foo (z); +} + +struct B d; +struct A e, f, g; + +int +main (void) +{ + f.a = &g; + bar (&d, &e, &f, 0); + if (d.b == 0 + || d.b->a == 0 + || d.b->a->a == 0 + || d.b->a->a->a != 0) + abort (); + return 0; +} |