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Hi, I'm working on a CS326 compiler project, and I'm having some problems using string functions. Some LLVM programs produced are either aborting or giving incorrect results; however, if I disassemble the LLVM bytecode and recompile with GCC, everything works fine. I encountered the following error when running lli with '-force-interpreter' option: "Tried to execute an

Hi, I have a CFG built by LLVM with blocks that look like this: myBlock: ; preds = %predA, %predB %cond = phi bool [ false, %predA ], [ %otherCond, %predB ] br bool %cond, %succA, %succB Is there a pass or sequence of passes that will see the constant 'false' in the PHI instruction and change the target of %predA to point directly to %succB? I tried -simplifycfg but it

Hi, How can I rerun an analysis pass in the middle of a function pass? In particular, my dominator set needs to be recomputed. It looks like I can manually edit the dominator set with getAnalysisToUpdate. If I could rerun the dominator set pass to get this info automatically, it would save me some time. Thanks.

Is there a pass that will transform this: %cc = seteq ushort %val, 0 into this: %cc = cast ushort %val to bool Would instcombine be the logical place to do this? Thanks.

On Thu, May 19, 2005 at 03:27:02PM -0500, Eric Zimmerman wrote: > Is there a pass that will transform this: > %cc = seteq ushort %val, 0 > > into this: > %cc = cast ushort %val to bool > > Would instcombine be the logical place to do this? In my situation, this bool value feeds a select instruction. Because casting inverts the condition, the select would have to

On Wed, Mar 16, 2005 at 09:16:20PM -0600, Chris Lattner wrote: > >I am fairly new to the LLVM pass framework. My goal is to extend the > >CFGPrinter analysis pass to label the edges of the graph with their > >edge-counts from profile data. > > > >I can generate the CFGs using 'analyze', but I am having trouble > >loading the profile data. I added the

Hi LLVMers, I am fairly new to the LLVM pass framework. My goal is to extend the CFGPrinter analysis pass to label the edges of the graph with their edge-counts from profile data. I can generate the CFGs using 'analyze', but I am having trouble loading the profile data. I added the line AU.addRequired<ProfileInfo>(); to the getAnalysisUsage. It is returning zero for all the edge

>> Is there a pass that will transform this: >> %cc = seteq ushort %val, 0 >> >> into this: >> %cc = cast ushort %val to bool >> >> Would instcombine be the logical place to do this? >> >> In my situation, this bool value feeds a select instruction. Because >> casting inverts the condition, the select would have to switch the

Chris, I'm fine with using JIT, but I'm trying to understand this problem: 1. My LLVM program does not produce correct results 2. Using llvm-dis, I disassemble the bytecode to C 3. I recompile using GCC and the program _works correctly_. The only odd thing is when I recompile with GCC, I see these messages: pal3.c:195: warning: conflicting types for built-in function `strcmp'