diff options
| author | Chen Zheng <czhengsz@cn.ibm.com> | 2024-04-02 08:40:28 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-04-02 08:40:28 +0800 |
| commit | f33a6dcf959238e82f6ad45333e3547d8cfcfe38 (patch) | |
| tree | bc3791043c60c34b6a195ce96dd92f4452addfa1 | |
| parent | 372c275800140f35a697f12a2e83d94d5603eaf5 (diff) | |
| download | llvm-f33a6dcf959238e82f6ad45333e3547d8cfcfe38.zip llvm-f33a6dcf959238e82f6ad45333e3547d8cfcfe38.tar.gz llvm-f33a6dcf959238e82f6ad45333e3547d8cfcfe38.tar.bz2 | |
[PPC][NFC] add an option for GatherAllAliasesMaxDepth (#87071)
GatherAllAliases is time consuming. Add an debug option on PPC to
control the complexity of the function. This is useful when debuging
compile time related issues.
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index 7436b20..43e4a34 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -137,6 +137,10 @@ 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> PPCGatherAllAliasesMaxDepth( + "ppc-gather-alias-max-depth", cl::init(18), cl::Hidden, + cl::desc("max depth when checking alias info in GatherAllAliases()")); + STATISTIC(NumTailCalls, "Number of tail calls"); STATISTIC(NumSiblingCalls, "Number of sibling calls"); STATISTIC(ShufflesHandledWithVPERM, @@ -1512,6 +1516,8 @@ PPCTargetLowering::PPCTargetLowering(const PPCTargetMachine &TM, // than the corresponding branch. This information is used in CGP to decide // when to convert selects into branches. PredictableSelectIsExpensive = Subtarget.isPredictableSelectIsExpensive(); + + GatherAllAliasesMaxDepth = PPCGatherAllAliasesMaxDepth; } // *********************************** NOTE ************************************ |