diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c b/gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c new file mode 100644 index 00000000000..ab013d3d9fc --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c @@ -0,0 +1,46 @@ +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-tree-dom3" } */ + +struct rtx_def; +typedef struct rtx_def *rtx; + + + +union rtunion_def +{ + int rtint; +}; +typedef union rtunion_def rtunion; + + + +struct rtx_def +{ + rtunion fld[1]; + +}; + +static int *uid_cuid; +static int max_uid_cuid; + +static rtx +bar (rtx r) +{ + rtx place = r; + + if (place->fld[0].rtint <= max_uid_cuid + && (place->fld[0].rtint > max_uid_cuid ? insn_cuid (place) : + uid_cuid[place->fld[0].rtint])) + return r; + + return 0; +} + +/* There should be two IF conditionals. One tests <= max_uid_cuid, the + other tets the value in uid_cuid. If either is false the jumps + are threaded to the return 0. Which in turn means the path + which combines the result of those two tests into a new test + must always be true and it is optimized appropriately. */ +/* { dg-final { scan-tree-dump-times "if " 2 "dom3"} } */ + + |