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| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2020-09-28 01:08:33 +0200 |
|---|---|---|
| committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2020-10-20 22:35:08 +0200 |
| commit | 97e6515a7944b2ed9ec5be4614066632682559d7 (patch) | |
| tree | 88d319e5e69d6a94cc0bfb81793da7c7b820c690 | |
| parent | 2bd6dd27dd4dfc5f022de38ef52fdca6b6e92269 (diff) | |
| download | sparse-97e6515a7944b2ed9ec5be4614066632682559d7.tar.gz | |
unop: add helper eval_unop()
Currently, eval_op() only do the evaluation of binops but unops
need sometimes to be evaluated too.
So, teach eval_op() about OP_NEG & OP_NOT and add a new helper,
eval_unop() for making it easier to use with unops.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
| -rw-r--r-- | simplify.c | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -535,6 +535,13 @@ static pseudo_t eval_op(int op, unsigned size, pseudo_t src1, pseudo_t src2) ur = right & bits; switch (op) { + case OP_NEG: + res = -left; + break; + case OP_NOT: + res = ~ul; + break; + case OP_ADD: res = left + right; break; @@ -636,6 +643,11 @@ undef: return NULL; } +static inline pseudo_t eval_unop(int op, unsigned size, pseudo_t src) +{ + return eval_op(op, size, src, VOID); +} + /// // Simplifications // ^^^^^^^^^^^^^^^ |