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...the second branch will be replaced by a phi node, if the (*) branch is taken, the value is 0, else undef. I'm concerned that this is an LLVM bug. Reproduction: clang -S -emit-llvm test.c opt -mem2reg test.ll I'm not at the computer right now, so I cannot show the exact generated code. Radnai László -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20200914/5a6c769f/attachment.html>

Hi László, On 8/13/20 5:21 PM, László Radnai via llvm-dev wrote: > (Sorry I clicked reply instead of reply to all) > I'm fighting with my email client, I hope the quoted text contains > what I want it to contain. > > ---------- Forwarded message ---------- > From: László Radnai <radlaci97 at gmail.com> >...

On 9/14/20 9:30 AM, James Y Knight via llvm-dev wrote: > On Mon, Sep 14, 2020 at 3:19 AM László Radnai via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > >> A problem arises, and I am not sure if it is really a problem or just >> weird C-compliant behavior. >> >> int a; // or, equally, int a=0; >> >> int main(){ >> int b; >> if (b) /...

Hi! I'm interested in what attributes in LLVM mean, specifically how to say that the result is always the same for the given input parameters. The main thing would be to merge two calls with the same parameters when the function is declared but not defined. (just like two stores). I'll call this property mergability. %1 := call @test(%0) %2 := call @test(%0) and the optimization would

Hi, I have a FreeBSD 7.2 machine with Samba 3.4.5 with aio support enabled. If I try to upgrade to Samba 3.5.2 from source aio support compiles but I receive "Abnormal server exit: Failed to setup RT_SIGNAL_AIO handler" fatal error from smbd. Without aio 3.5.2 too works nice. Any hint please what has been changed from 3.4.5 to 3.5.2 regarding aio? Or what special compile option would