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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-08-18 21:14:54 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-08-18 21:14:54 +0000 |
| commit | c0823fe7c679ca8f7d1667a310c2fca97b9402d5 (patch) | |
| tree | 2106aeae81f3562cd04d6387d271ab62e0770706 /lib/Target/PowerPC | |
| parent | 1123135dbfa776bbe4c2120a16098d81e0850a76 (diff) | |
| download | llvm-c0823fe7c679ca8f7d1667a310c2fca97b9402d5.tar.gz llvm-c0823fe7c679ca8f7d1667a310c2fca97b9402d5.tar.bz2 llvm-c0823fe7c679ca8f7d1667a310c2fca97b9402d5.tar.xz | |
Simplify RegScavenger::FindUnusedReg.
- Drop the Candidates argument and fix all callers. Now that RegScavenger
tracks available registers accurately, there is no need to restict the
search.
- Make sure that no aliases of the found register are in use. This was a potential bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79369 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC')
| -rw-r--r-- | lib/Target/PowerPC/PPCRegisterInfo.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp index 2eb2abc047..f120caaa42 100644 --- a/lib/Target/PowerPC/PPCRegisterInfo.cpp +++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp @@ -527,7 +527,7 @@ static unsigned findScratchRegister(MachineBasicBlock::iterator II, RegScavenger *RS, const TargetRegisterClass *RC, int SPAdj) { assert(RS && "Register scavenging must be on"); - unsigned Reg = RS->FindUnusedReg(RC, true); + unsigned Reg = RS->FindUnusedReg(RC); // FIXME: move ARM callee-saved reg scan to target independent code, then // search for already spilled CS register here. if (Reg == 0) |