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3 Commits

Author SHA1 Message Date
Manuel Jacob
a25ab845ae CodeGenPrep: sink extends of illegal types into use block. 
Summary:
This helps the instruction selector to lower an i64 * i64 -> i128
multiplication into a single instruction on targets which support it.

This is an update of D2973 which was reverted because of a bug reported
as PR19084.

Reviewers: t.p.northover, chapuni

Reviewed By: t.p.northover

CC: llvm-commits, alex, chapuni

Differential Revision: http://llvm-reviews.chandlerc.com/D3021

llvm-svn: 203797
 2014-03-13 13:36:25 +00:00
NAKAMURA Takumi
baf4a0d596 Revert r203230, "CodeGenPrep: sink extends of illegal types into use block." 
It choked i686 stage2.

llvm-svn: 203386
 2014-03-09 11:01:07 +00:00
Tim Northover
781b15d502 CodeGenPrep: sink extends of illegal types into use block. 
This helps the instruction selector to lower an i64 * i64 -> i128
multiplication into a single instruction on targets which support it.

Patch by Manuel Jacob.

llvm-svn: 203230
 2014-03-07 11:04:30 +00:00