llvm-project

Commit Graph

Author	SHA1	Message	Date
Andrew Trick	033efdf4d7	Fixes PR8823: add-with-overflow-128.ll In the bottom-up selection DAG scheduling, handle two-address instructions that read/write unspillable registers. Treat the entire chain of two-address nodes as a single live range. llvm-svn: 122472	2010-12-23 03:15:51 +00:00
Chris Lattner	17a06b7efa	temporarily disable this: PR8823. llvm-svn: 122222	2010-12-20 02:11:23 +00:00
Eli Friedman	dbbbf73c96	Implement expansion in type legalization for add/sub with overflow. The expansion is the same as that used by LegalizeDAG. The resulting code sucks in terms of performance/codesize on x86-32 for a 64-bit operation; I haven't looked into whether different expansions might be better in general. llvm-svn: 105378	2010-06-03 03:49:50 +00:00

Author

SHA1

Message

Date

Andrew Trick

033efdf4d7

Fixes PR8823: add-with-overflow-128.ll

In the bottom-up selection DAG scheduling, handle two-address
instructions that read/write unspillable registers. Treat
the entire chain of two-address nodes as a single live range.

llvm-svn: 122472

2010-12-23 03:15:51 +00:00

Chris Lattner

17a06b7efa

temporarily disable this: PR8823.

llvm-svn: 122222

2010-12-20 02:11:23 +00:00

Eli Friedman

dbbbf73c96

Implement expansion in type legalization for add/sub with overflow. The

expansion is the same as that used by LegalizeDAG.

The resulting code sucks in terms of performance/codesize on x86-32 for a
64-bit operation; I haven't looked into whether different expansions might be
better in general.

llvm-svn: 105378

2010-06-03 03:49:50 +00:00

3 Commits