T783 regresses severely in allocations with new pattern match checker
The new pattern match checker (Phab:D1535) allocates 115% more than the previous checker on the T783 testcase,
bytes allocated value is too high:
Expected T783(normal) bytes allocated: 526230456 +/-10%
Lower bound T783(normal) bytes allocated: 473607410
Upper bound T783(normal) bytes allocated: 578853502
Actual T783(normal) bytes allocated: 1134085384
Deviation T783(normal) bytes allocated: 115.5 %
*** unexpected stat test failure for T783(normal)I suspect this isn't avoidable as this testcase consists of nothing more than 500 guarded equations, so exercises the checker quite thoroughly. That being said, perhaps it's worth a closer look.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.10.2 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | gkaracha |
| Operating system | |
| Architecture |