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only set Context::forfeitedSite if value is live

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This commit is contained in:
Joel Dice 2008-12-15 17:42:32 -07:00
parent 39358e6652
commit 8819d01522
1 changed files with 8 additions and 4 deletions
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12
src/compiler.cpp
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@ -2859,7 +2859,9 @@ class CombineEvent: public Event {
maybePreserve(c, stackBefore, localsBefore, secondSize, second,
second->source);
target = second->source;
c->forfeitedSite = target;
if (liveNext(c, second)) {
c->forfeitedSite = target;
}
} else {
target = resultRead->allocateSite(c);
addSite(c, stackBefore, localsBefore, resultSize, result, target);
@ -2874,7 +2876,7 @@ class CombineEvent: public Event {
if (c->arch->condensedAddressing()) {
c->forfeitedSite = 0;
removeSite(c, second, second->source);
removeSite(c, second, target);
if (live(result)) {
addSite(c, 0, 0, resultSize, result, target);
}
@ -3100,7 +3102,9 @@ class TranslateEvent: public Event {
if (c->arch->condensedAddressing()) {
maybePreserve(c, stackBefore, localsBefore, size, value, value->source);
target = value->source;
c->forfeitedSite = target;
if (liveNext(c, value)) {
c->forfeitedSite = target;
}
} else {
target = resultRead->allocateSite(c);
addSite(c, stackBefore, localsBefore, size, result, target);
@ -3112,7 +3116,7 @@ class TranslateEvent: public Event {
if (c->arch->condensedAddressing()) {
c->forfeitedSite = 0;
removeSite(c, value, value->source);
removeSite(c, value, target);
if (live(result)) {
addSite(c, 0, 0, size, result, target);
}