llvm-project

Commit Graph

Author	SHA1	Message	Date
Jakub Staszak	9b59d14fc4	Revert 179826. Tests were worthless. llvm-svn: 179845	2013-04-19 09:32:30 +00:00
Jakub Staszak	2c1daf75b9	Don't run expensive -O2 and -O3 in tests. llvm-svn: 179825	2013-04-19 01:10:45 +00:00
Benjamin Kramer	89ca4bc6d4	Fix a scalability issue with complex ConstantExprs. This is basically the same fix in three different places. We use a set to avoid walking the whole tree of a big ConstantExprs multiple times. For example: (select cmp, (add big_expr 1), (add big_expr 2)) We don't want to visit big_expr twice here, it may consist of thousands of nodes. The testcase exercises this by creating an insanely large ConstantExprs out of a loop. It's questionable if the optimizer should ever create those, but this can be triggered with real C code. Fixes PR15714. llvm-svn: 179458	2013-04-13 12:53:18 +00:00

Author

SHA1

Message

Date

Jakub Staszak

9b59d14fc4

Revert 179826. Tests were worthless.

llvm-svn: 179845

2013-04-19 09:32:30 +00:00

Jakub Staszak

2c1daf75b9

Don't run expensive -O2 and -O3 in tests.

llvm-svn: 179825

2013-04-19 01:10:45 +00:00

Benjamin Kramer

89ca4bc6d4

Fix a scalability issue with complex ConstantExprs.

This is basically the same fix in three different places. We use a set to avoid
walking the whole tree of a big ConstantExprs multiple times.

For example: (select cmp, (add big_expr 1), (add big_expr 2))
We don't want to visit big_expr twice here, it may consist of thousands of
nodes.

The testcase exercises this by creating an insanely large ConstantExprs out of
a loop. It's questionable if the optimizer should ever create those, but this
can be triggered with real C code. Fixes PR15714.

llvm-svn: 179458

2013-04-13 12:53:18 +00:00

3 Commits