Backout of f198435 due to perf regression

pratikashar · gfxbot · commit eb4e4d897402 · 2018-08-22T16:19:52.000-07:00
Change-Id: Idac50c9acb67199bd5f98f75ed244f68ac2561b2
diff --git a/visa/Rematerialization.cpp b/visa/Rematerialization.cpp
@@ -761,8 +761,7 @@ namespace vISA
                 {
                     G4_SrcRegRegion* srcRgn = uniqueDefInst->getSrc(i)->asSrcRegRegion();
 
-                    if (srcRgn->getTopDcl()->getNumElems() > 1 &&
-                        !src->isSpilled())
+                    if (srcRgn->getTopDcl()->getNumElems() > 1)
                     {
                         // Extending non-scalar operands can be expensive
                         return false;

Original file line number	Diff line number	Diff line change
`@@ -761,8 +761,7 @@ namespace vISA`
`761`	`761`	`{`
`762`	`762`	`G4_SrcRegRegion* srcRgn = uniqueDefInst->getSrc(i)->asSrcRegRegion();`
`763`	`763`
`764`		`- if (srcRgn->getTopDcl()->getNumElems() > 1 &&`
`765`		`- !src->isSpilled())`
	`764`	`+ if (srcRgn->getTopDcl()->getNumElems() > 1)`
`766`	`765`	`{`
`767`	`766`	`// Extending non-scalar operands can be expensive`
`768`	`767`	`return false;`