llvm-project

Commit Graph

Author	SHA1	Message	Date
Daniel Dunbar	c3ab4c6c98	Detect when the current generation point is unreachable after emitting expressions. - This generally catches the important case of noreturn functions. - With the last two changes, we are down to 152 unreachable blocks emitted on 403.gcc, vs the 1805 we started with. llvm-svn: 76364	2009-07-19 08:23:12 +00:00
Daniel Dunbar	b6adc43f6e	Avoid generation of dead code in a few more situations. - Emit variable declarations as "simple", we want to avoid forcing the creation of a dummy basic block, but still need to make the variable available for later use. - With that, we can now skip IRgen for other unreachable statements (which don't define a label). - Anders, I added two fixmes on calls to EmitVLASize, can you check them? llvm-svn: 76361	2009-07-19 06:58:07 +00:00

Author

SHA1

Message

Date

Daniel Dunbar

c3ab4c6c98

Detect when the current generation point is unreachable after emitting

expressions.
 - This generally catches the important case of noreturn functions.

 - With the last two changes, we are down to 152 unreachable blocks emitted on
   403.gcc, vs the 1805 we started with.

llvm-svn: 76364

2009-07-19 08:23:12 +00:00

Daniel Dunbar

b6adc43f6e

Avoid generation of dead code in a few more situations.

- Emit variable declarations as "simple", we want to avoid forcing the creation
   of a dummy basic block, but still need to make the variable available for
   later use.

 - With that, we can now skip IRgen for other unreachable statements (which
   don't define a label).

 - Anders, I added two fixmes on calls to EmitVLASize, can you check them?

llvm-svn: 76361

2009-07-19 06:58:07 +00:00

2 Commits