search for: vreg1234

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2006 Oct 05
1
[LLVMdev] Number of spills/stores
Dear guys, After compiling 188.ammp, one of spec floating point benchmarks, using the linear scan register allocator, I got 34 spills, but only 28 store instructions. These data were given by -stats. Is this number correct? I mean, the number of stores should be equal or greater than the number of spills, shouldn't it? Best regards, Fernando
2006 Jun 01
1
[LLVMdev] Live ranges of physical registers
Dear LLVM guys, I am coding a liveness analysis algorithm, and I found this comment on LiveVariables.cpp: Line 00195 - http://llvm.org/doxygen/LiveVariables_8cpp-source.html : // PhysRegInfo - Keep track of which instruction was the last use of a // physical register. This is a purely local property, because all physical // register references as presumed dead across basic blocks.