diff options
| author | Andrew Trick <atrick@apple.com> | 2014-02-27 21:37:33 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2014-02-27 21:37:33 +0000 |
| commit | 4c34f71b81c1d4ce6801b8d8fd2ec6a09198d129 (patch) | |
| tree | 06fb0e93ae1e82b52b2d80f9747db28bb045fd47 /lib/CodeGen/RegAllocGreedy.cpp | |
| parent | 594e2aa61eaba17d9836551ca479d987f2d9e059 (diff) | |
| download | llvm-4c34f71b81c1d4ce6801b8d8fd2ec6a09198d129.tar.gz llvm-4c34f71b81c1d4ce6801b8d8fd2ec6a09198d129.tar.bz2 llvm-4c34f71b81c1d4ce6801b8d8fd2ec6a09198d129.tar.xz | |
Provide a target override for the latest regalloc heuristic.
This is a temporary workaround for native arm linux builds:
PR18996: Changing regalloc order breaks "lencod" on native arm linux builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202433 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocGreedy.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocGreedy.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp index 6e6a594479..3372e26195 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -457,7 +457,7 @@ void RAGreedy::enqueue(PQueue &CurQueue, LiveInterval *LI) { // Giant live ranges fall back to the global assignment heuristic, which // prevents excessive spilling in pathological cases. bool ReverseLocal = TRI->reverseLocalAssignment(); - bool ForceGlobal = !ReverseLocal && + bool ForceGlobal = !ReverseLocal && TRI->mayOverrideLocalAssignment() && (Size / SlotIndex::InstrDist) > (2 * MRI->getRegClass(Reg)->getNumRegs()); if (ExtraRegInfo[Reg].Stage == RS_Assign && !ForceGlobal && !LI->empty() && |