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| author | Giuseppe Scrivano <gscrivano@gnu.org> | 2010-09-05 23:39:12 +0000 |
|---|---|---|
| committer | Paolo Carlini <paolo@gcc.gnu.org> | 2010-09-05 23:39:12 +0000 |
| commit | 68fce4ed868d4c740124f68eff97d867c879ce0f (patch) | |
| tree | b03be65954ece9593296959f7ff1f397f3dc89f5 /gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c | |
| parent | 28cc1e9a8a81cfca5c7dd193bd45a95acbcb2b6b (diff) | |
| download | gcc-68fce4ed868d4c740124f68eff97d867c879ce0f.zip gcc-68fce4ed868d4c740124f68eff97d867c879ce0f.tar.gz gcc-68fce4ed868d4c740124f68eff97d867c879ce0f.tar.bz2 | |
tree-tailcall.c (process_assignment): Handle NEGATE_EXPR and MINUS_EXPR.
gcc/
2010-09-05 Giuseppe Scrivano <gscrivano@gnu.org>
* tree-tailcall.c (process_assignment): Handle NEGATE_EXPR and
MINUS_EXPR.
gcc/testsuite/
2010-09-05 Giuseppe Scrivano <gscrivano@gnu.org>
* gcc.dg/tree-ssa/tailrecursion-7.c: New file.
From-SVN: r163888
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c b/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c new file mode 100644 index 0000000..875a6aa --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c @@ -0,0 +1,40 @@ +/* { dg-do run } */ +/* { dg-options "-O1 -foptimize-sibling-calls -fdump-tree-optimized" } */ + +extern void abort (void); +extern void exit (int); + +int foo (int n) +{ + return n == 0 ? 1 : n * (n - foo (n - 1)); +} + +int bar (int n) +{ + return n == 0 ? 1 : n * (- bar (n - 1)); +} + +int baz (int n, int m) +{ + return n == 0 ? 100 : (baz (n - 1, m) - m); +} + +int main (void) +{ + if (foo (6) != 726) + abort (); + + if (bar (7) != -5040) + abort (); + + if (baz (10, 5) != 50) + abort (); + + exit (0); +} + +/* { dg-final { scan-tree-dump-times "\\mfoo\\M" 4 "optimized"} } */ +/* { dg-final { scan-tree-dump-times "\\mbar\\M" 4 "optimized"} } */ +/* { dg-final { scan-tree-dump-times "\\mbaz\\M" 4 "optimized"} } */ + +/* { dg-final { cleanup-tree-dump "optimized" } } */ |