Update to in-place spilling framework. Includes live interval scaling and trivial rewriter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72729 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index 9dee892..67120b8 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -359,6 +359,29 @@
}
}
+/// scaleNumbering - Renumber VNI and ranges to provide gaps for new
+/// instructions.
+void LiveInterval::scaleNumbering(unsigned factor) {
+ // Scale ranges.
+ for (iterator RI = begin(), RE = end(); RI != RE; ++RI) {
+ RI->start = InstrSlots::scale(RI->start, factor);
+ RI->end = InstrSlots::scale(RI->end, factor);
+ }
+
+ // Scale VNI info.
+ for (vni_iterator VNI = vni_begin(), VNIE = vni_end(); VNI != VNIE; ++VNI) {
+ VNInfo *vni = *VNI;
+ if (vni->def != ~0U && vni->def != ~1U) {
+ vni->def = InstrSlots::scale(vni->def, factor);
+ }
+
+ for (unsigned i = 0; i < vni->kills.size(); ++i) {
+ if (vni->kills[i] != 0)
+ vni->kills[i] = InstrSlots::scale(vni->kills[i], factor);
+ }
+ }
+}
+
/// getLiveRangeContaining - Return the live range that contains the
/// specified index, or null if there is none.
LiveInterval::const_iterator