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4 Commits

Author SHA1 Message Date
Nadav Rotem 7cc6d12ad0 Enhance constant folding of bitcast operations on vectors of floats. 
Add getAllOnesValue of FP numbers to Constants and APFloat.
Add more tests.

llvm-svn: 125776
 2011-02-17 21:22:27 +00:00
Nadav Rotem 0e162c57f8 Fix test 
llvm-svn: 125460
 2011-02-13 16:13:16 +00:00
Nadav Rotem 27b848afb0 Fix a regression from r125393; 
It caused a crash in MultiSource/Benchmarks/Bullet.
Opt hit an assertion with "opt -std-compile-opts" because
Constant::getAllOnesValue doesn't know how to handle floats.

This patch added a test to reproduce the problem and a check that the
destination vector is of integer type.

Thank you Benjamin!

llvm-svn: 125459
 2011-02-13 15:45:34 +00:00
Nadav Rotem 10134c33f2 Fix 9173. 
Add more folding patterns to constant expressions of vector selects and vector
bitcasts.

llvm-svn: 125393
 2011-02-11 19:37:55 +00:00