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2 Commits

Author SHA1 Message Date
Andrew Trick
d09b64fc25 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
Rafael Espindola
431029d375 Split segmented stacks tests into tests for static- and dynamic-size frames. 
Patch by Brian Anderson.

llvm-svn: 147959
 2012-01-11 18:51:03 +00:00