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Use early exit to reduce indentation. 

llvm-svn: 83874
This commit is contained in:
Bob Wilson 2009-10-12 19:04:03 +00:00
parent 3af34312d4
commit 3a7326e705
1 changed files with 20 additions and 19 deletions
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39
llvm/lib/Target/ARM/ARMConstantIslandPass.cpp
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@ -956,28 +956,29 @@ bool ARMConstantIslands::LookForWater(CPUser &U, unsigned UserOffset,
MachineBasicBlock *&NewMBB) {
water_iterator IPThatWouldPad;
MachineBasicBlock* WaterBBThatWouldPad = NULL;
if (!WaterList.empty()) {
for (water_iterator IP = prior(WaterList.end()),
B = WaterList.begin();; --IP) {
MachineBasicBlock* WaterBB = *IP;
if (WaterIsInRange(UserOffset, WaterBB, U)) {
unsigned WBBId = WaterBB->getNumber();
if (isThumb &&
(BBOffsets[WBBId] + BBSizes[WBBId])%4 != 0) {
// This is valid Water, but would introduce padding. Remember
// it in case we don't find any Water that doesn't do this.
if (!WaterBBThatWouldPad) {
WaterBBThatWouldPad = WaterBB;
IPThatWouldPad = IP;
}
} else {
NewMBB = AcceptWater(WaterBB, IP);
return true;
if (WaterList.empty())
return false;
for (water_iterator IP = prior(WaterList.end()),
B = WaterList.begin();; --IP) {
MachineBasicBlock* WaterBB = *IP;
if (WaterIsInRange(UserOffset, WaterBB, U)) {
unsigned WBBId = WaterBB->getNumber();
if (isThumb &&
(BBOffsets[WBBId] + BBSizes[WBBId])%4 != 0) {
// This is valid Water, but would introduce padding. Remember
// it in case we don't find any Water that doesn't do this.
if (!WaterBBThatWouldPad) {
WaterBBThatWouldPad = WaterBB;
IPThatWouldPad = IP;
}
} else {
NewMBB = AcceptWater(WaterBB, IP);
return true;
}
if (IP == B)
break;
}
if (IP == B)
break;
}
if (isThumb && WaterBBThatWouldPad) {
NewMBB = AcceptWater(WaterBBThatWouldPad, IPThatWouldPad);