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...t addp(int *c, int a,int b) { int x = *c + a + b; return(x); } I want to replace *c with a scalar. So I tried the -argpromotion pass. However, it fails to do anything to the resulting llvm file. List of commands: clang add.c -c -o add.bc clang add.c -S -o add.ll opt -argpromotion -stats add.bc -o add_a.bc llvm-dis < add_a.bc > add_a.ll Also, when I try to print the stats I get a message "Maximum CGSCCPassMgr iterations on one SCC" Can anyone please let me know what I am missing here? Thanks for all the help. Regards Arvind

Right, this gets into the whole error-handling philosophy of LLVM, or lack thereof. The idea is that so long as your frontend generating IR gives correct IR and is well-behaved, LLVM will not assert, abort, or crash. Once you've successfully debugged your frontend, you should never see this kind of error from LLVM and need to recover from it. In practice, this is true enough that it is

I'm trying to figure out the best way to handle signals raised during the execution of LLVM's optimization passes or the JIT'ing of code prior to running it. In particular, LLVM throws unix signals instead of C++ exceptions while the header ErrorHandling.h contains the following warning (the last paragraph in particular): /// llvm_instal_error_handler - Installs a new error handler

...d.csv('rateC_rf.csv')$rateC_rf1   rateA3 = rateA-rateA_rf1       rateA4 = rateA+rateA_rf1   rateB3 = rateB-rateB_rf1       rateB4 = rateB+rateB_rf1   rateC3 = rateC-rateC_rf1       rateC4 = rateC+rateC_rf1   rate_gen_num = length(om3$rateA)    ### THIS rateA is from the scenario table.   add_A = runif(N-rate_gen_num, rateA3, rateA4) add_B = runif(N-rate_gen_num, rateB3, rateB4) add_C = runif(N-rate_gen_num, rateC3, rateC4)   if(rate_gen_num < N) rateA_adj = data.frame(namesA = paste(rate_name1, 3, sep = ""), adj_rateA = add_A) else rateA_adj = 0 if(rate_gen_num < N) rateB...