Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(411)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: runtime/vm/intermediate_language.cc

Issue 285483002: More general dead phi elimination. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years, 7 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« runtime/vm/flow_graph_optimizer.cc ('K') | « runtime/vm/intermediate_language.h ('k') | no next file » | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: runtime/vm/intermediate_language.cc
===================================================================
--- runtime/vm/intermediate_language.cc (revision 35967)
+++ runtime/vm/intermediate_language.cc (working copy)
@@ -2878,6 +2878,17 @@
}
+bool PhiInstr::IsRedundant() const {
+ ASSERT(InputCount() > 1);
+ Definition* first = InputAt(0)->definition();
+ for (intptr_t i = 1; i < InputCount(); ++i) {
+ Definition* def = InputAt(i)->definition();
+ if (def != first) return false;
+ }
+ return true;
+}
+
+
static bool SymbolicSub(const RangeBoundary& a,
const RangeBoundary& b,
RangeBoundary* result) {
« runtime/vm/flow_graph_optimizer.cc ('K') | « runtime/vm/intermediate_language.h ('k') | no next file » | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698