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10 Commits

Author SHA1 Message Date
Andrew Trick 8523b16ff5 Instruction scheduling itinerary for Intel Atom. 
Adds an instruction itinerary to all x86 instructions, giving each a default latency of 1, using the InstrItinClass IIC_DEFAULT.

Sets specific latencies for Atom for the instructions in files X86InstrCMovSetCC.td, X86InstrArithmetic.td, X86InstrControl.td, and X86InstrShiftRotate.td. The Atom latencies for the remainder of the x86 instructions will be set in subsequent patches.

Adds a test to verify that the scheduler is working.

Also changes the scheduling preference to "Hybrid" for i386 Atom, while leaving x86_64 as ILP.

Patch by Preston Gurd!

llvm-svn: 149558
 2012-02-01 23:20:51 +00:00
Nadav Rotem 26edb291ac Fix a bug in the integer-promotion of bitcast operations on vector types. 
We must not issue a bitcast operation for integer-promotion of vector types, because the
location of the values in the vector may be different.

llvm-svn: 146150
 2011-12-08 13:10:01 +00:00
Nadav Rotem 486ff59a9f Enable element promotion type legalization by deafault. 
Changed tests which assumed that vectors are legalized by widening them.

llvm-svn: 142152
 2011-10-16 20:31:33 +00:00
Chris Lattner ff392ab3ed now that generic vector types aren't selected onto MMX registers, these 
tests don't need -disable-mmx.

llvm-svn: 122188
 2010-12-19 20:12:58 +00:00
Dan Gohman 9528ccdd77 Don't enable the post-RA scheduler on x86 except at -O3. In its 
current form, it is too expensive in compile time.

llvm-svn: 90781
 2009-12-07 19:04:31 +00:00
Evan Cheng c436631a9c Turn on post-alloc scheduling for x86. 
llvm-svn: 84431
 2009-10-18 19:57:27 +00:00
Mon P Wang 1a015acf69 Update tests to use FileCheck 
llvm-svn: 84282
 2009-10-16 22:09:05 +00:00
Dan Gohman 40503396da Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81290
 2009-09-08 23:54:48 +00:00
Dan Gohman 0d4bbf2c4a Remove obsolete -f flags. 
llvm-svn: 79992
 2009-08-25 15:38:29 +00:00
Mon P Wang 6e5f4bc1e7 Added some basic test cases for r61209 
llvm-svn: 61210
 2008-12-18 20:05:58 +00:00