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* Instruction scheduling itinerary for Intel Atom.Andrew Trick2012-02-011-6/+6
| | | | | | | | | | | | | | 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
* Default stack alignment for 32bit x86 should be 4 Bytes, not 8 Bytes.Joerg Sonnenberger2012-01-101-0/+25
Add a test that checks the stack alignment of a simple function for Darwin, Linux and NetBSD for 32bit and 64bit mode. llvm-svn: 147888
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