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sandanagobalane
2015 Aug 10
3
Possible bug in adjusting PHINode from removePredecessor?
Hi,
Simple description of the problem below. I have code coming into
pruneEH as follows
fn a {
entry:
call fn b
...
for_cond:
%i = phi [1, entry] [%x, for_body]
cmp $i with someval
cond-br for_body or for_exit
for_body:
...
$x = $i + 1
branch for_cond
for_exit
...
}
PruneEH determines that the call to fn-b won't return. The code is
modified thus.
fn a {
entry:
call fn b
unreachable insn