Getting the opcode corresponding to the instruction defining
a pseudo *if* the psedudo has such an instruction (PSEUDO_REG)
is an common operation in the simplification phase.
Add a helper, def_opcode() to make the code a bit easier to read.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
simplify.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/simplify.c b/simplify.c
index e3bc33996..6c05eb04d 100644
--- a/simplify.c
+++ b/simplify.c
@@ -370,6 +370,13 @@ static int replace_with_pseudo(struct instruction *insn, pseudo_t pseudo)
return REPEAT_CSE;
}
+static inline int def_opcode(pseudo_t p)
+{
+ if (p->type != PSEUDO_REG)
+ return OP_BADOP;
+ return p->def->opcode;
+}
+
static unsigned int value_size(long long value)
{
value >>= 8;
--
2.17.1
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