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Diffstat (limited to 'gcc/testsuite/gcc.dg/pr44214-3.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr44214-3.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr44214-3.c b/gcc/testsuite/gcc.dg/pr44214-3.c new file mode 100644 index 00000000000..46d5ee8c78e --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr44214-3.c @@ -0,0 +1,19 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-ccp1" } */ + +typedef double v2df __attribute__ ((vector_size (16))); + +void do_div (v2df *a, v2df *b) +{ + *a = *b / (v2df) { 2.0, 2.0 }; +} + +/* Since 2.0 has an exact reciprocal, constant folding should multiply *b + by the reciprocals of the vector elements. As a result there should be + one vector multiply and zero divides in the optimized code. The fold + does not take place for generic vectors until the first CCP pass. The + string " * " occurs 3 times: one multiply and two indirect parameters. */ + +/* { dg-final { scan-tree-dump-times " \\\* " 3 "ccp1" } } */ +/* { dg-final { scan-tree-dump-times " / " 0 "ccp1" } } */ +/* { dg-final { cleanup-tree-dump "ccp1" } } */ |