similar to: [LLVMdev] How to add extern function declaratioin to llvm bc?

Dear folks, If I want to setup a mapping between an LLVM instruction and the x86 assembly instructions it generates, is this possible? Or, an equavalent question is, when LLVM is emitting assebmly instructions, will it transform a set of LLVM instructions to a set of assembly instructions, or transform each LLVM instruction to assembly instructions independently? -- Regards, Heming Cui

Hi Eli, Thanks for your reply. If I add -force-interpreter to lli, then it seems that it can not run external function like printf or malloc. Is there any easy way to solve this problem? On Wed, Dec 30, 2009 at 11:26 PM, Eli Friedman <eli.friedman at gmail.com>wrote: > On Wed, Dec 30, 2009 at 7:53 PM, Heming Cui <heming at cs.columbia.edu> > wrote: > > Dear all, >

On Wed, Dec 30, 2009 at 7:53 PM, Heming Cui <heming at cs.columbia.edu> wrote: > Dear all, >      I hope you enjoy your christmas! Recently I started to play lli with > bc. I found that the lli only calls the main() function in bc file and then > does nothing before the main() function returns, which means that the > JIT::runFunction() function is involved only once with the

Dear all, I hope you enjoy your christmas! Recently I started to play lli with bc. I found that the lli only calls the main() function in bc file and then does nothing before the main() function returns, which means that the JIT::runFunction() function is involved only once with the main() function in bc file. If this was true, then lli does not have any control to the execution of program.

On Thu, Dec 31, 2009 at 2:26 AM, Heming Cui <heming at cs.columbia.edu> wrote: > Hi Eli, >     Thanks for your reply. If I add -force-interpreter to lli, then it seems > that it can not run external function like printf or malloc. Is there any > easy way to solve this problem? Does the LLVM configure find libffi? -Eli

On Mon, Oct 25, 2010 at 12:39 PM, Heming Cui <hc2428 at columbia.edu> wrote: > Dear folks, >     If I want to setup a mapping between an LLVM instruction and the x86 > assembly instructions it generates, is this possible? >     Or, an equavalent question is, when LLVM is emitting assebmly > instructions, will it transform a set of LLVM instructions to a set of > assembly

Dear staff, I downloaded an llvm version from the svn trunk at June 12, because the released 2.5 version can not support "gcc -g -Ox", and x=1,2,3. I use the version in svn to compile an httpd.bc file succefully with dbgstoppoint() functions. However, when I use llc to compile the bc file to .s file (llc -f -o httpd.s httpd.bc), I met this error (the httpd.bc file will be

Hi Eli, I think the llvm configure has already configured with ffi. ../llvm-2.6/configure -help | grep ffi --enable-libffi Check for the presence of libffi (default is YES) In addition, the printf() can work in program, reflecting that libffi is working, right? How can I make Interpreter work with getpid(), fork(), and clone()? On Thu, Dec 31, 2009 at 2:33 AM, Eli

Dear all, May I know whether Interpreter in llvm-2.6 can handle clone() call (with CLONE_VM flag)? Another small question is: since JIT only invokes the main() function in a program once, and does not have control to the execution while main() is running, what is the benefit of using JIT? -- Regards, Heming Cui -------------- next part -------------- An HTML attachment was scrubbed...

Dear developers, Here I met a question: if I got a file called foo.c, and I want to know which BasicBlock contains the 30 th line in foo.c, how can I get this BasicBlock in LLVM? Thanks, Heming

Quoting Chris Lattner <clattner at apple.com>: Dear staff, I am using the ds-aa to pass mysqld. I compile mysqld 4.0.12 statically (compile all libraries statically to the executable) and got the bc file, named it as mysqld.bc3. I use the command to pass: opt -load <poolalloc install dir>/lib/libLLVMDataStructure.so -ds-aa mysqld.bc3 -print-alias-sets -disable-output

Quoting hc2428 at columbia.edu: Dear staff, Here is the bc file. Heming > Quoting Chris Lattner <clattner at apple.com>: > > Dear staff, > I am using the ds-aa to pass mysqld. I compile mysqld 4.0.12 > statically (compile all libraries statically to the executable) and > got the bc file, named it as mysqld.bc3. > I use the command to pass: > > opt

On Sep 23, 2009, at 10:37 PM, hc2428 at columbia.edu wrote: > Dear developers, > Here I met a question: if I got a file called foo.c, and I want > to know which BasicBlock contains the 30 th line in foo.c, how can I > get this BasicBlock in LLVM? > Hi Heming, The only way I can think of to do this is to look at the debug information. Devang's been hard at work recoding

On Wed, May 13, 2009 at 1:36 PM, <hc2428 at columbia.edu> wrote: > Quoting Chris Lattner <clattner at apple.com>: > > Dear staff, >     I am using the ds-aa to pass mysqld. I compile mysqld 4.0.12 > statically (compile all libraries statically to the executable) and > got the bc file, named it as mysqld.bc3. >     I use the command to pass: > > opt -load

Dear Staff, Here are some questions on the output formats of AliasSetTracker. The code is as below: int G1 = 9; int G2 = 5; int main() { int * XX; int * YY; XX = &G1; YY = XX; YY = &G2; XX = &G2; } The output for -anders-aa is: Alias Set Tracker: 5 alias sets for 4 pointer values. AliasSet[0xea6fb0,0] may alias, Mod/Ref 10 Call Sites: void ({ }*)*

Dear LLVM developers, I am wondering the gcc optimization flag for "ENABLE_OPTIMIZED=1" in LLVM is -O2 or -O3. And what is the flag if I set "ENABLE_OPTIMIZED=0"? If I want to manually modify the flag for "ENABLE_OPTIMIZED=1" in LLVM, what file should I refer to? -- Regards, Heming Cui -------------- next part -------------- An HTML attachment was

Dear Staff, I am asking this question: given a line of IR code in *.ll file, how can I know the corresponding line number and C/C++ source file name for this IR code? I am investigating some code patterns with LLVM IR, I need to know where this IR code come from (the line number in a source file name). An existing way is using -g option to compile my software, then I can

Dear folks, I am trying to handle function pointers at call graph, and I found that the CallGraphSCCPass makes function pointers as external node, which is actually an empty CallGraphNode (NULL pointer)? If I want to distinguish the function pointer types in the call graph (and I also want the SCC order in CallGraphSCCPass), can I do that easily? Or I have to inheritate the

On Thu, May 7, 2009 at 5:07 PM, <hc2428 at columbia.edu> wrote: > However, I am a little confused with these output. In Both anders-aa > and steens-aa, XX and YY should stay in the same AliasSet, and their > alias relationship should be May Alias, right? %XX and %YY are the results of alloca instructions (i.e. equivalent to the C expressions "&XX" and

Hi, I am trying to set loop unrolling as a required pass. AU.addRequired<LoopUnroll>(); should I include any header file? How can I be possessive that "LoopUnroll" is the name I need ? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090606/aaab7bd1/attachment.html>