diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index 17f04d0..20fc849 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -138,6 +138,11 @@ static cl::opt<unsigned> PPCMinimumJumpTableEntries( "ppc-min-jump-table-entries", cl::init(64), cl::Hidden, cl::desc("Set minimum number of entries to use a jump table on PPC")); +static cl::opt<unsigned> PPCMinimumBitTestCmps( + "ppc-min-bit-test-cmps", cl::init(3), cl::Hidden, + cl::desc("Set minimum of largest number of comparisons to use bit test for " + "switch on PPC.")); + static cl::opt<unsigned> PPCGatherAllAliasesMaxDepth( "ppc-gather-alias-max-depth", cl::init(18), cl::Hidden, cl::desc("max depth when checking alias info in GatherAllAliases()")); @@ -1436,6 +1441,9 @@ PPCTargetLowering::PPCTargetLowering(const PPCTargetMachine &TM, // Re-evaluate this value on future HWs that can do better with mtctr. setMinimumJumpTableEntries(PPCMinimumJumpTableEntries); + // The default minimum of largest number in a BitTest cluster is 3. + setMinimumBitTestCmps(PPCMinimumBitTestCmps); + setMinFunctionAlignment(Align(4)); setMinCmpXchgSizeInBits(Subtarget.hasPartwordAtomics() ? 8 : 32); |