llvm-project

Commit Graph

Author	SHA1	Message	Date
Chris Lattner	81841af594	This is a carefully contrived testcase where the X86 ISel is emitting all loads before other ops, causing it to spill like mad. This occurs in 164.gzip:flush_block. llvm-svn: 19648	2005-01-17 23:16:01 +00:00
Chris Lattner	788bdba13d	The pattern isel is aggressively codegen'ing all of the loads in these functions together at the start of the basic block, causing massive spillage. The old isel codegened the loads wherever they happened to land, so it generated good code for the first case, but bad code for the second. We really want the pattern isel to generate (the same) good code for both. llvm-svn: 19448	2005-01-11 03:05:03 +00:00

Author

SHA1

Message

Date

Chris Lattner

81841af594

This is a carefully contrived testcase where the X86 ISel is emitting all loads

before other ops, causing it to spill like mad.  This occurs in
164.gzip:flush_block.

llvm-svn: 19648

2005-01-17 23:16:01 +00:00

Chris Lattner

788bdba13d

The pattern isel is aggressively codegen'ing all of the loads in these

functions together at the start of the basic block, causing massive spillage.
The old isel codegened the loads wherever they happened to land, so it
generated good code for the first case, but bad code for the second.

We really want the pattern isel to generate (the same) good code for both.

llvm-svn: 19448

2005-01-11 03:05:03 +00:00

2 Commits