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(parent: bbdc820) | patch
rewrite OptimizeAwayTrappingUsesOfLoads to 1) avoid a temporary
authorChris Lattner <sabre@nondot.org>
Wed, 14 Jan 2009 00:12:58 +0000 (00:12 +0000)
committerChris Lattner <sabre@nondot.org>
Wed, 14 Jan 2009 00:12:58 +0000 (00:12 +0000)
commit92c6bd2c45f0002385300a8aa298fa34ef9bff64
treedd16f19893498c56fb5c75cb8d3b1ae9e31aebe2tree | snapshot
parentbbdc8207d587026212e176026d3e37ae043a6661commit | diff
rewrite OptimizeAwayTrappingUsesOfLoads to 1) avoid a temporary
vector and extraneous loop over it, 2) not delete globals used by
phis/selects etc which could actually be useful.  This fixes PR3321.
Many thanks to Duncan for narrowing this down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62201 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/IPO/GlobalOpt.cpp diff | blob | history
test/Transforms/GlobalOpt/2009-01-13-phi-user.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors