Use a new VRegPHIUseCount to compute uses of PHI values by other phi values
authorChris Lattner <sabre@nondot.org>
Mon, 10 May 2004 19:06:37 +0000 (19:06 +0000)
committerChris Lattner <sabre@nondot.org>
Mon, 10 May 2004 19:06:37 +0000 (19:06 +0000)
commit80e20eb487e5e7bc41a7a52d5e985d332c552ef9
tree2a938dcb1ef1a059f5fe78f283ed123ea8633537
parent791f896d9f8a38b3806878867d61c114069b6195
Use a new VRegPHIUseCount to compute uses of PHI values by other phi values
in the basic block being processed.  This fixes PhiElimination on kimwitu++
from taking 105s to taking a much more reasonable 0.6s (in a debug build).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13453 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/PHIElimination.cpp