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| author | 2016-02-19 20:14:38 -0800 | |
|---|---|---|
| committer | 2016-02-24 11:08:32 -0800 | |
| commit | 97412c92afb3f6630c4f0eafe6d6161862bfb4c1 (patch) | |
| tree | 124411d0160da1a7f0869c29029ef4dbfac6da97 /compiler/optimizing/induction_var_analysis.h | |
| parent | b4982aab07ae4cdaba13b4cb99306459d92e52d5 (diff) | |
Use range analysis for better trip count analysis
Rationale:
Marking more loops as always-taken avoids generating
unnecessary new top tests while marking more loops
are non-infinite enables more optimizations. This
CL helps with these improvements. Also, some more
code is shared between induction and range analysis
and a bug with refining ranges has been fixed.
Bug: 27151190
Change-Id: Iecc0d7f32ae4779ee5424cda9dcc20816220935e
Diffstat (limited to 'compiler/optimizing/induction_var_analysis.h')
| -rw-r--r-- | compiler/optimizing/induction_var_analysis.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/optimizing/induction_var_analysis.h b/compiler/optimizing/induction_var_analysis.h index 84d5d82568..94d2646aec 100644 --- a/compiler/optimizing/induction_var_analysis.h +++ b/compiler/optimizing/induction_var_analysis.h @@ -189,7 +189,9 @@ class HInductionVarAnalysis : public HOptimization { InductionInfo* CreateSimplifiedInvariant(InductionOp op, InductionInfo* a, InductionInfo* b); // Constants. - bool IsIntAndGet(InductionInfo* info, int64_t* value); + bool IsExact(InductionInfo* info, /*out*/ int64_t* value); + bool IsAtMost(InductionInfo* info, /*out*/ int64_t* value); + bool IsAtLeast(InductionInfo* info, /*out*/ int64_t* value); // Helpers. static bool InductionEqual(InductionInfo* info1, InductionInfo* info2); |