diff options
| author | Andrew Trick <atrick@apple.com> | 2012-12-05 21:37:42 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2012-12-05 21:37:42 +0000 |
| commit | 553c42cefc9abe1f10ee33d34a12498b8ac12fe6 (patch) | |
| tree | b9be40e319a9d3817a9913cf982b108391d7fc48 /utils/TableGen/RegisterInfoEmitter.cpp | |
| parent | 0602bb46596485b43fa8b86abbc8485d502025ce (diff) | |
RegisterPresssureTracker: Track live physical register by unit.
This is much simpler to reason about, more efficient, and
fixes some corner cases involving implicit super-register defs.
Fixed rdar://12797931.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169425 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/TableGen/RegisterInfoEmitter.cpp')
| -rw-r--r-- | utils/TableGen/RegisterInfoEmitter.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/utils/TableGen/RegisterInfoEmitter.cpp b/utils/TableGen/RegisterInfoEmitter.cpp index 935136f0d4..66adb61a32 100644 --- a/utils/TableGen/RegisterInfoEmitter.cpp +++ b/utils/TableGen/RegisterInfoEmitter.cpp @@ -195,7 +195,9 @@ EmitRegUnitPressure(raw_ostream &OS, const CodeGenRegBank &RegBank, } OS << "/// Get the weight in units of pressure for this register unit.\n" << "unsigned " << ClassName << "::\n" - << "getRegUnitWeight(unsigned RegUnit) const {\n"; + << "getRegUnitWeight(unsigned RegUnit) const {\n" + << " assert(RegUnit < " << RegBank.getNumNativeRegUnits() + << " && \"invalid register unit\");\n"; if (!RegUnitsHaveUnitWeight) { OS << " static const uint8_t RUWeightTable[] = {\n "; for (unsigned UnitIdx = 0, UnitEnd = RegBank.getNumNativeRegUnits(); @@ -290,7 +292,9 @@ EmitRegUnitPressure(raw_ostream &OS, const CodeGenRegBank &RegBank, << "register unit.\n" << "/// Returns a -1 terminated array of pressure set IDs\n" << "const int* " << ClassName << "::\n" - << "getRegUnitPressureSets(unsigned RegUnit) const {\n"; + << "getRegUnitPressureSets(unsigned RegUnit) const {\n" + << " assert(RegUnit < " << RegBank.getNumNativeRegUnits() + << " && \"invalid register unit\");\n"; OS << " static const unsigned RUSetStartTable[] = {\n "; for (unsigned UnitIdx = 0, UnitEnd = RegBank.getNumNativeRegUnits(); UnitIdx < UnitEnd; ++UnitIdx) { |