diff options
| author | spupyrev <spupyrev@fb.com> | 2022-03-01 15:05:44 -0800 |
|---|---|---|
| committer | spupyrev <spupyrev@fb.com> | 2022-03-02 07:17:48 -0800 |
| commit | bcdc0477319a26fd8dcdde5ace3bdd6743599f44 (patch) | |
| tree | 546f50640de3bb4f73031e34bc73565bc6f469cd /llvm/lib/CodeGen/MachineBlockPlacement.cpp | |
| parent | 59814a8c99768159291188f0981aede567e2a0e5 (diff) | |
| download | llvm-bcdc0477319a26fd8dcdde5ace3bdd6743599f44.zip llvm-bcdc0477319a26fd8dcdde5ace3bdd6743599f44.tar.gz llvm-bcdc0477319a26fd8dcdde5ace3bdd6743599f44.tar.bz2 | |
speeding up ext-tsp for huge instances
Differential Revision: https://reviews.llvm.org/D120780
Diffstat (limited to 'llvm/lib/CodeGen/MachineBlockPlacement.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineBlockPlacement.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/MachineBlockPlacement.cpp b/llvm/lib/CodeGen/MachineBlockPlacement.cpp index 5ad3d4d2..e4534dd 100644 --- a/llvm/lib/CodeGen/MachineBlockPlacement.cpp +++ b/llvm/lib/CodeGen/MachineBlockPlacement.cpp @@ -201,6 +201,7 @@ static cl::opt<unsigned> TriangleChainCount( cl::Hidden); extern cl::opt<bool> EnableExtTspBlockPlacement; +extern cl::opt<bool> ApplyExtTspWithoutProfile; namespace llvm { extern cl::opt<unsigned> StaticLikelyProb; @@ -3419,7 +3420,8 @@ bool MachineBlockPlacement::runOnMachineFunction(MachineFunction &MF) { } // Apply a post-processing optimizing block placement. - if (MF.size() >= 3 && EnableExtTspBlockPlacement) { + if (MF.size() >= 3 && EnableExtTspBlockPlacement && + (ApplyExtTspWithoutProfile || MF.getFunction().hasProfileData())) { // Find a new placement and modify the layout of the blocks in the function. applyExtTsp(); |