No functional changes, just moving the core around
in preparation for shift-shift simplification.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
simplify.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/simplify.c b/simplify.c
index 9e4a496fd..911ab11a9 100644
--- a/simplify.c
+++ b/simplify.c
@@ -627,14 +627,19 @@ static int simplify_shift(struct instruction *insn, pseudo_t pseudo, long long v
break;
case OP_LSR:
size = operand_size(insn, pseudo);
- /* fall through */
+ if (value >= size)
+ goto zero;
+ switch(DEF_OPCODE(def, pseudo)) {
+ case OP_LSR:
+ goto case_shift_shift;
+ }
+ break;
case OP_SHL:
if (value >= size)
goto zero;
- if (pseudo->type != PSEUDO_REG)
- break;
- def = pseudo->def;
- if (def->opcode == insn->opcode) {
+ switch(DEF_OPCODE(def, pseudo)) {
+ case OP_SHL:
+ case_shift_shift: // also for LSR - lSR
if (def == insn) // cyclic DAG!
break;
src2 = def->src2;
--
2.18.0
--
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