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This commit changes normal isel and fast isel to read the user-defined trap function name from function attribute "trap-func-name" attached to llvm.trap or llvm.debugtrap instead of from TargetOptions::TrapFuncName. This is needed to use clang's command line option "-ftrap-function" for LTO and enable changing the trap function name on a per-call-site basis. Out-of-tree projects currently using TargetOptions::TrapFuncName to specify the trap function name should attach attribute "trap-func-name" to the call sites of llvm.trap and llvm.debugtrap instead. rdar://problem/21225723 Differential Revision: http://reviews.llvm.org/D10832 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241305 91177308-0d34-0410-b5e6-96231b3b80d8
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