Title: [192544] trunk/Source/_javascript_Core
- Revision
- 192544
- Author
- commit-qu...@webkit.org
- Date
- 2015-11-17 15:10:14 -0800 (Tue, 17 Nov 2015)
Log Message
[JSC] Do not copy the adjacency list when we just need to manipulate them
https://bugs.webkit.org/show_bug.cgi?id=151343
Patch by Benjamin Poulain <bpoul...@apple.com> on 2015-11-17
Reviewed by Geoffrey Garen.
* b3/air/AirIteratedRegisterCoalescing.cpp:
(JSC::B3::Air::IteratedRegisterCoalescingAllocator::precoloredCoalescingHeuristic):
(JSC::B3::Air::IteratedRegisterCoalescingAllocator::conservativeHeuristic):
Modified Paths
Diff
Modified: trunk/Source/_javascript_Core/ChangeLog (192543 => 192544)
--- trunk/Source/_javascript_Core/ChangeLog 2015-11-17 22:48:19 UTC (rev 192543)
+++ trunk/Source/_javascript_Core/ChangeLog 2015-11-17 23:10:14 UTC (rev 192544)
@@ -1,5 +1,16 @@
2015-11-17 Benjamin Poulain <bpoul...@apple.com>
+ [JSC] Do not copy the adjacency list when we just need to manipulate them
+ https://bugs.webkit.org/show_bug.cgi?id=151343
+
+ Reviewed by Geoffrey Garen.
+
+ * b3/air/AirIteratedRegisterCoalescing.cpp:
+ (JSC::B3::Air::IteratedRegisterCoalescingAllocator::precoloredCoalescingHeuristic):
+ (JSC::B3::Air::IteratedRegisterCoalescingAllocator::conservativeHeuristic):
+
+2015-11-17 Benjamin Poulain <bpoul...@apple.com>
+
[JSC] Remove FTLOutput operations that act directly on floats
https://bugs.webkit.org/show_bug.cgi?id=151342
Modified: trunk/Source/_javascript_Core/b3/air/AirIteratedRegisterCoalescing.cpp (192543 => 192544)
--- trunk/Source/_javascript_Core/b3/air/AirIteratedRegisterCoalescing.cpp 2015-11-17 22:48:19 UTC (rev 192543)
+++ trunk/Source/_javascript_Core/b3/air/AirIteratedRegisterCoalescing.cpp 2015-11-17 23:10:14 UTC (rev 192544)
@@ -464,7 +464,7 @@
// If any adjacent of the non-colored node is not an adjacent of the colored node AND has a degree >= K
// there is a risk that this node needs to have the same color as our precolored node. If we coalesce such
// move, we may create an uncolorable graph.
- auto adjacentsOfV = m_adjacencyList[AbsoluteTmpHelper<type>::absoluteIndex(v)];
+ const auto& adjacentsOfV = m_adjacencyList[AbsoluteTmpHelper<type>::absoluteIndex(v)];
for (Tmp adjacentTmp : adjacentsOfV) {
if (!adjacentTmp.isReg()
&& !hasBeenSimplified(adjacentTmp)
@@ -486,8 +486,8 @@
ASSERT(!u.isReg());
ASSERT(!v.isReg());
- auto adjacentsOfU = m_adjacencyList[AbsoluteTmpHelper<type>::absoluteIndex(u)];
- auto adjacentsOfV = m_adjacencyList[AbsoluteTmpHelper<type>::absoluteIndex(v)];
+ const auto& adjacentsOfU = m_adjacencyList[AbsoluteTmpHelper<type>::absoluteIndex(u)];
+ const auto& adjacentsOfV = m_adjacencyList[AbsoluteTmpHelper<type>::absoluteIndex(v)];
if (adjacentsOfU.size() + adjacentsOfV.size() < m_numberOfRegisters) {
// Shortcut: if the total number of adjacents is less than the number of register, the condition is always met.
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