On Tue, Sep 5, 2017 at 12:20 PM, Claudiu Zissulescu <claudiu.zissule...@synopsys.com> wrote: > Hi guys, > > I found an ICE when emitting sjlj dispatch table for ARC. Namely, in > sjlj_emit_dispatch_table() function, we create a dispatch table where the > case elements are having the high value is set to NULL (except.c:1326). > Later, these case statements are used by expand_sjlj_dispatch_table() > (stmt.c:1006) where we create a case list requiring also the high element > (stmt.c:1066). This leads to an error when we try to compute the high bounds > in emit_case_dispatch_table() (stmt.c:786), due to the fact that high value > is null. > > In gcc7.x, we were initializing the high value of case elements in > sjlj_emit_dispatch_table() with the CASE_LOW. Shouldn't we do the same thing, > or do I miss something.
A NULL CASE_HIGH means the case covers a single value, CASE_LOW. Probably broken by Martins reorg. Richard. > A test is attached, the error is visible for ARC backend, the option for the > compiler should be -O2. > > Thanks, > Claudiu
