RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-04-12 02:47:10 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

The last commit was overly conservative. It's ok to reuse value that's already marked livein.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65498 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2009-02-26 03:02:21 +00:00
parent f792352c25
commit 04cf3e39f3
2 changed files with 1 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/CodeGen/VirtRegMap.cpp
View File

@ -516,18 +516,11 @@ void AvailableSpills::AddAvailableRegsToLiveIn(MachineBasicBlock &MBB,
I = PhysRegsAvailable.begin(), E = PhysRegsAvailable.end(); I = PhysRegsAvailable.begin(), E = PhysRegsAvailable.end();
I != E; ++I) { I != E; ++I) {
unsigned Reg = I->first; unsigned Reg = I->first;
bool MakeAvail = true;
const TargetRegisterClass* RC = TRI->getPhysicalRegisterRegClass(Reg); const TargetRegisterClass* RC = TRI->getPhysicalRegisterRegClass(Reg);
// FIXME: A temporary workaround. We can't reuse available value if it's // FIXME: A temporary workaround. We can't reuse available value if it's
// not safe to move the def of the virtual register's class. e.g. // not safe to move the def of the virtual register's class. e.g.
// X86::RFP* register classes. Do not add it as a live-in. // X86::RFP* register classes. Do not add it as a live-in.
if (!TII->isSafeToMoveRegClassDefs(RC)) if (!TII->isSafeToMoveRegClassDefs(RC))
MakeAvail = false;
if (MBB.isLiveIn(Reg))
// It's already livein somehow. Be conservative, do not make it available.
MakeAvail = false;
if (!MakeAvail)
// This is no longer available. // This is no longer available.
NotAvailable.insert(Reg); NotAvailable.insert(Reg);
else { else {

2
test/CodeGen/ARM/2008-11-19-ScavengerAssert.ll
View File

@ -1,5 +1,5 @@
; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin9 ; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin9
; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin9 -stats |& grep asm-printer | grep 185 ; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin9 -stats |& grep asm-printer | grep 186
%"struct.Adv5::Ekin<3>" = type <{ i8 }> %"struct.Adv5::Ekin<3>" = type <{ i8 }>
%"struct.Adv5::X::Energyflux<3>" = type { double } %"struct.Adv5::X::Energyflux<3>" = type { double }