Merge "Redirect output from -printusage in app script"
diff --git a/src/main/java/com/android/tools/r8/ir/conversion/DexBuilder.java b/src/main/java/com/android/tools/r8/ir/conversion/DexBuilder.java
index 96b2122..182bb49 100644
--- a/src/main/java/com/android/tools/r8/ir/conversion/DexBuilder.java
+++ b/src/main/java/com/android/tools/r8/ir/conversion/DexBuilder.java
@@ -1165,7 +1165,7 @@
@Override
public int computeSize(DexBuilder builder) {
Move move = getMove();
- int srcRegister = builder.allocatedRegister(move.src(), move.getNumber());
+ int srcRegister = builder.argumentOrAllocateRegister(move.src(), move.getNumber());
int destRegister = builder.allocatedRegister(move.dest(), move.getNumber());
if (srcRegister == destRegister) {
size = 1;
@@ -1183,8 +1183,8 @@
public void addInstructions(DexBuilder builder, List<Instruction> instructions) {
Move move = getMove();
MoveType moveType = MoveType.fromValueType(move.outType());
+ int src = builder.argumentOrAllocateRegister(move.src(), move.getNumber());
int dest = builder.allocatedRegister(move.dest(), move.getNumber());
- int src = builder.allocatedRegister(move.src(), move.getNumber());
Instruction instruction = null;
switch (size) {
case 1:
diff --git a/src/main/java/com/android/tools/r8/ir/regalloc/LinearScanRegisterAllocator.java b/src/main/java/com/android/tools/r8/ir/regalloc/LinearScanRegisterAllocator.java
index 85e0060..6803c75 100644
--- a/src/main/java/com/android/tools/r8/ir/regalloc/LinearScanRegisterAllocator.java
+++ b/src/main/java/com/android/tools/r8/ir/regalloc/LinearScanRegisterAllocator.java
@@ -513,9 +513,12 @@
// Compute the set of registers that is used based on all live intervals.
Set<Integer> usedRegisters = new HashSet<>();
for (LiveIntervals intervals : liveIntervals) {
- addRegisterIfUsed(usedRegisters, intervals);
- for (LiveIntervals childIntervals : intervals.getSplitChildren()) {
- addRegisterIfUsed(usedRegisters, childIntervals);
+ // Argument sentinel values do not occupy any registers.
+ if (!isArgumentSentinelIntervals(intervals)) {
+ addRegisterIfUsed(usedRegisters, intervals);
+ for (LiveIntervals childIntervals : intervals.getSplitChildren()) {
+ addRegisterIfUsed(usedRegisters, childIntervals);
+ }
}
}
// Additionally, we have used temporary registers for parallel move scheduling, those
@@ -535,6 +538,11 @@
unusedRegisters = computed;
}
+ private boolean isArgumentSentinelIntervals(LiveIntervals intervals) {
+ return intervals.isArgumentInterval() &&
+ (intervals.getPreviousConsecutive() == null || intervals.getNextConsecutive() == null);
+ }
+
private void addRegisterIfUsed(Set<Integer> used, LiveIntervals intervals) {
boolean unused = intervals.isSpilledAndRematerializable(this);
if (!unused) {
