diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/reassoc-4.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/reassoc-4.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/reassoc-4.c b/gcc/testsuite/gcc.dg/tree-ssa/reassoc-4.c new file mode 100644 index 000000000..8f9de464e --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/reassoc-4.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized -ffast-math" } */ +float a, b, c, d; +extern int printf (const char *, ...); +int main(void) +{ + float e; + float f; + /* We should not be able to transform these into the same expression, and only have two additions. */ + e = a + b; + e = e + c; + f = c + a; + f = f + b; + printf ("%f %f\n", e, f); +} + +/* { dg-final { scan-tree-dump-times "\\\+" 2 "optimized"} } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |