Wed Sep 5 05:52:19 PDT 2007 [EMAIL PROTECTED]
* Refactor MachRegs.trivColorable to do unboxed accumulation
trivColorable was soaking up total 31% time, 41% alloc when
compiling SHA1.lhs with -O2 -fregs-graph on x86.
Refactoring to use unboxed accumulators and walk directly
over the UniqFM holding the set of conflicts reduces this
to 17% time, 6% alloc.
M ./compiler/nativeGen/AsmCodeGen.lhs -2 +2
M ./compiler/nativeGen/GraphBase.hs -1 +1
M ./compiler/nativeGen/GraphOps.hs -2 +2
M ./compiler/nativeGen/MachRegs.lhs -6 +78
M ./compiler/nativeGen/RegAllocColor.hs -4 +5
M ./compiler/nativeGen/RegAllocLinear.hs +1
M ./compiler/utils/UniqFM.lhs -1 +2
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