diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-4.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-4.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-4.c b/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-4.c new file mode 100644 index 000000000..d89739f3a --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-4.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-options "-O1 -foptimize-sibling-calls -fdump-tree-tailr-details" } */ +int +t(int a) +{ + int r; + if (a&1) + r = t(a-1); + else if (a) + r = t(a-2); + else + return 0; + if (r) + r=r; + return r; +} +/* { dg-final { scan-tree-dump-times "Eliminated tail recursion" 2 "tailr1"} } */ +/* { dg-final { cleanup-tree-dump "tailr\[1-2\]" } } */ |