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| author | Andrew Trick <atrick@apple.com> | 2013-08-30 04:27:29 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2013-08-30 04:27:29 +0000 |
| commit | da6fc15f0fb26ebbe42ab96e0d066bbd5bdbb72e (patch) | |
| tree | 90204955d891351885977e4682ad1d413a421117 /include | |
| parent | 4c60b8a78d811a5b16ae45f6957933fb479bab58 (diff) | |
| download | llvm-da6fc15f0fb26ebbe42ab96e0d066bbd5bdbb72e.tar.gz llvm-da6fc15f0fb26ebbe42ab96e0d066bbd5bdbb72e.tar.bz2 llvm-da6fc15f0fb26ebbe42ab96e0d066bbd5bdbb72e.tar.xz | |
mi-sched: improve the generic register pressure comparison.
Only compare pressure within the same set. When multiple sets are
affected, we prioritize the most constrained set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189641 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/CodeGen/RegisterPressure.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/include/llvm/CodeGen/RegisterPressure.h b/include/llvm/CodeGen/RegisterPressure.h index b271f7f3d5..68f2ac2349 100644 --- a/include/llvm/CodeGen/RegisterPressure.h +++ b/include/llvm/CodeGen/RegisterPressure.h @@ -112,14 +112,13 @@ public: assert(isValid() && "invalid PressureChange"); return PSetID - 1; } + // If PSetID is invalid, return UINT16_MAX to give it lowest priority. + unsigned getPSetOrMax() const { return (PSetID - 1) & UINT16_MAX; } int getUnitInc() const { return UnitInc; } void setUnitInc(int Inc) { UnitInc = Inc; } - // If PSetID is invalid, convert to INT_MAX to give it lowest priority. - int getRank() const { return (PSetID - 1) & INT_MAX; } - bool operator==(const PressureChange &RHS) const { return PSetID == RHS.PSetID && UnitInc == RHS.UnitInc; } |