6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-13 20:32:21 +00:00
Code Issues Projects Releases Wiki Activity

Follow-up patch to r162731.

Browse Source 
Fix a couple of bugs in mips' long branch pass.
This patch was supposed to be committed along with r162731, so I don't have a
new test case.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162777 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2012-08-28 18:58:57 +00:00
parent 4ba6916a98
commit 4fb08317af
1 changed files with 9 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
lib/Target/Mips/MipsLongBranch.cpp
View File

@ -257,10 +257,10 @@ void MipsLongBranch::expandToLongBranch(MBBInfo &I) {
LongBrMBB->addSuccessor(BalTgtMBB);
BalTgtMBB->addSuccessor(TgtMBB);
uint64_t TgtAddress = MBBInfos[TgtMBB->getNumber()].Address;
uint64_t Offset = TgtAddress - (I.Address + I.Size - 20);
uint64_t Lo = Offset & 0xffff;
uint64_t Hi = ((Offset + 0x8000) >> 16) & 0xffff;
int64_t TgtAddress = MBBInfos[TgtMBB->getNumber()].Address;
int64_t Offset = TgtAddress - (I.Address + I.Size - 20);
int64_t Lo = SignExtend64<16>(Offset & 0xffff);
int64_t Hi = SignExtend64<16>(((Offset + 0x8000) >> 16) & 0xffff);
if (ABI != MipsSubtarget::N64) {
// $longbr:
@ -317,8 +317,9 @@ void MipsLongBranch::expandToLongBranch(MBBInfo &I) {
// $fallthrough:
//
uint64_t Higher = ((Offset + 0x80008000) >> 32) & 0xffff;
uint64_t Highest = ((Offset + 0x800080008000LL) >> 48) & 0xffff;
int64_t Higher = SignExtend64<16>(((Offset + 0x80008000) >> 32) & 0xffff);
int64_t Highest =
SignExtend64<16>(((Offset + 0x800080008000LL) >> 48) & 0xffff);
Pos = LongBrMBB->begin();
@ -412,7 +413,7 @@ bool MipsLongBranch::runOnMachineFunction(MachineFunction &F) {
continue;
I->HasLongBranch = true;
I->Size += LongBranchSeqSize;
I->Size += LongBranchSeqSize * 4;
++LongBranches;
EverMadeChange = MadeChange = true;
}
@ -427,7 +428,7 @@ bool MipsLongBranch::runOnMachineFunction(MachineFunction &F) {
uint64_t Address = 0;
for (I = MBBInfos.begin(); I != E; ++I, Address += I->Size)
for (I = MBBInfos.begin(); I != E; Address += I->Size, ++I)
I->Address = Address;
}