4 Commits

Author SHA1 Message Date
serge-sans-paille
f686e4bbc2
[Remarks] Make sure -fdiagnostics-hotness-threshold implies -fdiagnostics-show-hotness
When asking for -fdiagnostics-hotness-threshold, we currently require
-fdiagnostics-show-hotness otherwise we silently display nothing.

I don't see a scenario where that makes sense, so have one option impy
the other.

Differential Revision: https://reviews.llvm.org/D153746
2023-06-26 13:48:10 +02:00
Arthur Eubanks
61d418f971 [test] Remove references to -fexperimental-new-pass-manager in tests
This has been the default for a while and we're in the process of removing the legacy PM optimization pipeline.
2022-04-11 13:29:08 -07:00
Fangrui Song
76093b1739 [InlineAdvisor] Add single quotes around caller/callee names
Clang diagnostics refer to identifier names in quotes.
This patch makes inline remarks conform to the convention.
New behavior:

```
% clang -O2 -Rpass=inline -Rpass-missed=inline -S a.c
a.c:4:25: remark: 'foo' inlined into 'bar' with (cost=-30, threshold=337) at callsite bar:0:25; [-Rpass=inline]
int bar(int a) { return foo(a); }
                        ^
```

Reviewed By: hoy

Differential Revision: https://reviews.llvm.org/D107791
2021-08-10 11:51:31 -07:00
Wei Wang
93dc1b5b8c [Remarks][2/2] Expand remarks hotness threshold option support in more tools
This is the #2 of 2 changes that make remarks hotness threshold option
available in more tools. The changes also allow the threshold to sync with
hotness threshold from profile summary with special value 'auto'.

This change expands remarks hotness threshold option
-fdiagnostics-hotness-threshold in clang and *-remarks-hotness-threshold in
other tools to utilize hotness threshold from profile summary.

Remarks hotness filtering relies on several driver options. Table below lists
how different options are correlated and affect final remarks outputs:

| profile | hotness | threshold | remarks printed |
|---------|---------|-----------|-----------------|
| No      | No      | No        | All             |
| No      | No      | Yes       | None            |
| No      | Yes     | No        | All             |
| No      | Yes     | Yes       | None            |
| Yes     | No      | No        | All             |
| Yes     | No      | Yes       | None            |
| Yes     | Yes     | No        | All             |
| Yes     | Yes     | Yes       | >=threshold     |

In the presence of profile summary, it is often more desirable to directly use
the hotness threshold from profile summary. The new argument value 'auto'
indicates threshold will be synced with hotness threshold from profile summary
during compilation. The "auto" threshold relies on the availability of profile
summary. In case of missing such information, no remarks will be generated.

Differential Revision: https://reviews.llvm.org/D85808
2020-11-30 21:55:50 -08:00