search for: wcochran

...forcing variables to be allocated on the stack frame -- which you would want for source level debugging. When SSA registers are used, LLVM will decide what goes into registers and what will spill over to the stack frame. I want the latter. --w Wayne O. Cochran Assistant Professor Computer Science wcochran at vancouver.wsu.edu -----Original Message----- From: Eli Friedman [mailto:eli.friedman at gmail.com] Sent: Fri 4/22/2011 5:53 PM To: Cochran, Wayne Owen Cc: llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] copy instructions On Fri, Apr 22, 2011 at 10:40 AM, Wayne Cochran <wcochran at vancouve...

...pass will rewrite allocas and loads and stores to SSA virtual registers. Essentially it's a transformation from non-SSA to SSA form. That said, I don't know if you want your students to implement their own SSA transformation. Reid On Sat, Apr 23, 2011 at 1:57 PM, Cochran, Wayne Owen <wcochran at vancouver.wsu.edu> wrote: > It is my understanding, the alloca memory routines are used > for forcing variables to be allocated on the stack frame -- which > you would want for source level debugging. > When SSA registers are used, LLVM will decide what goes into > registers an...

...x * y + foo(x) would be translated into %0 = add %y, %z %1 = mul %0, %y %2 = call foo(%0) %3 = add %1, %2 Is there a more obvious approach to avoiding "copy instructions"? --w Wayne O. Cochran Clinical Assistant Professor, Computer Science Washington State University Vancouver wcochran at vancouver.wsu.edu http://ezekiel.vancouver.wsu.edu/~wayne

On Fri, Apr 22, 2011 at 10:40 AM, Wayne Cochran <wcochran at vancouver.wsu.edu> wrote: > This is a simple SSA code generation 101 question. > > If I follow the IR code generation techniques in the Dragon book the > statement >  x = y + z > would translate into something like this in SSA/LLVM >  %0 = add %y, %z >  %x = %0 > Ob...

...64 write(5, "\0\0\0G\377SMB\240\0\0\0\0\210\1\310\0\0\0\0\0\0\0\0\0"..., 75) = 75 gettimeofday({1224887351, 128913}, NULL) = 0 select(32, [5 21 31], [], NULL, {60, 0}) = 1 (in [5], left {60, 0}) I don't know if that is helpful. Wayne O. Cochran Assistant Professor Computer Science wcochran@vancouver.wsu.edu

...obvious at first glance, but of course I am not sure what to look for and there are a lot of log files. What steps should I first take to debug the situation? Thanks for any and all help. --w Wayne O. Cochran Clinical Assistant Professor, Computer Science Washington State University Vancouver wcochran@vancouver.wsu.edu http://ezekiel.vancouver.wsu.edu/~wayne

...tal 4 -rwxr--r-- 1 yongffa Domain Users 818 2008-01-29 11:38 STATUS.lis <snip> Is this always being read every friggin' time they log in!?!?! Any ideas on what is going on here!?!? --w Wayne O. Cochran Clinical Assistant Professor, Computer Science Washington State University Vancouver wcochran@vancouver.wsu.edu http://ezekiel.vancouver.wsu.edu/~wayne