similar to: [LLVMdev] distinguishing between real arguments and variable arguments

>I have just checked it, the startup.elf and realmode.elf are fine. Only few changes are required for mainline kernel and one >commit has to be reverted from lld and a few patches have to be applied. > >The only step when I have used BFD is linking vmlinux. I have manually set LD variable in vmlinux_link() function. The vmlinux >produced by lld doesn't work yet. I will compare

Peter, I am trying to get memdisk to work with grub and have run into a problem. Grub loads memdisk into the 0x9000 segment and then starts it at location 0x90200. I run into problems in the first printf statement. It turns out that printf uses a switch statement that compiles into a jump table. When I reach this jump table, I believe the code is jumping into hyperspace due to the jump table

Hi, I'm trying to have a pure asm function (non inlined) that returns it's own value to the caller. ; Function Attrs: naked noinline optnone define i32 @callcatch(i32, i32) #3 !dbg !10103 { BasicBlock8472: call void asm "\0D\0Apushl %ebp\0D\0Amovl 8(%esp),%eax\0D\0Amovl 12(%esp), %ebp\0D\0Acalll *%eax\0D\0Apopl %ebp\0D\0Aretl\0D\0A", ""(), !dbg !10104, !srcloc

On Jun 26, 2013, at 4:18 PM, Eric Christopher <echristo at gmail.com> wrote: > So inverting it so that MI contains LLVM IR instead of the other way > around? Then we'd need a serialization format for MI that happened to > include a way of serializing LLVM IR within. From a quick "hey, this > seems reasonable" the idea of embedding the MI into the IR rather than

Hi, Apologies this is a bit lengthy. TLDR: I'm using Dragonegg + LLVM 3.2 and uClibc, and am finding that using the Fast register allocator (i.e. -optimize-regalloc=0) causes miscompilation of setsockopt calls (5-arg system calls). The problem doesn't happen with the default register allocation path selected. It can be worked around by manually simplifying the system call setup

Hi, I’m facing a crash issue (--target=arm-linux-gnueabi -march=armv8-a+crc -mfloat-abi=hard) and debugging the problem, I found that an intended branch was not taken due to bad code generation after the Post RA Scheduler pass. A CMPri instruction after an INLINEASM block (which inturn contains a cmp, bne instruction) is being moved before the INLINEASM block incorrectly resulting in two

I was told that my writeup lacked an example and details so I reproduced the code that X uses and I was able to boil down the issue to a couple of lines of code. Sorry again for the length of this email. Code was compiled on OpenBSD with clang 3.0-release. ======================================================================== With -O0 which works as X expects:

Hi, I'm implementing __builtin_setjmp and __builtin_longjmp for Sparc 32 bit processors (64 bit later, time allowing). I'm basing the code on the PowerPC version, which itself is based on the X86 version. This code is very nearly working, and I've had it working for -O0 optimisation (with a slightly different version to that below), so I know it's close. However, the PowerPC

hi, i'm writing a target dependent analysis on machine instruction level in llvm 2.0. the analysis needs to know if an inline assembly block reads from memory. the programmer is responsible to add 'm' constraints accordingly. i've seen the operand flags of the inline assembly SDNode and the machine instructions. but it seems that there is no difference between input and output

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Consider this program: --- asm.c --- int G; int foo(char *p) { int rv; G = 0; asm ("" : "=r"(rv) : "r"(p) : "memory"); return rv + G; } ------------- Is the use of "memory" clobber sufficient to expect the optimizer not to optimize the "+ G" away in the return statement? I'll add here that

On Thu, Feb 2, 2017 at 12:38 AM, George Rimar <grimar at accesssoftek.com> wrote: > >As far as the setup, I would recommend setting up qemu for actually > running the LLD-linked kernel and custom bootloader etc. because then you > can have a single >script that rebuilds the bootloader and kernel and > copies the files to the VM. This reduces iteration time significantly.

Hi, I'm trying to implement __builtin_setjmp / __builtin_longjmp for Sparc processors. I think I'm very close, but I can't work out how to issue BuildMI-type instructions to load the address of the recovery location (set in setjmp) into a register using the SETHI / OR combination. I can't see any equivalent code anywhere else in Sparc. I imagine this is similar if I try to make a

When experimenting with compiling GRUB2 with clang using integrated as, I found out that it generates a 16-bit code bigger than gas counterpart and result gets too big for size constraints of bootsector. This was traced mainly to 2 problems. 32-bit access to 16-bit addresses. source: movl LOCAL(kernel_sector), %ebx movl %ebx, 8(%si) clang: 7cbc: 67 66 8b 1d 5c 7c 00 addr32 mov 0x7c5c,%ebx

This is a bit premature to be considered a code review, but given how unfamiliar I am with SelectionDAG (& that I'm seeing somewhat more 'interesting' results compared to my change to FastISel) I wanted to get a bit of feedback to see if I was on the right track or had missed any obvious cases. I've attached my patch in progress (including a modification to the existing test

Hey All, I''m wondering if there is an easy way to distinguish between SP2 and SP3 on a SLES 10 installation. Thanks, Matt Delves --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Puppet Users" group. To post to this group, send email to puppet-users@googlegroups.com To unsubscribe from this group,

Hello, I am trying to get the mod_ntlm Apache module running. I have been playing with the code and find that I cannot distinguish between a IE browser running on win98 and one running on Windows 2000. My Apache server is running on red hat 7.1 x86. The code does the following to distinguish: if ((strcmp(ntlmssp->host,"")==0) &&

Check it's type to see if it's a pointer or not? On 1 September 2013 12:31, Abhinash Jain <omnia at mailinator.com> wrote: > C Code :- > int main() > { > int a=10,c; > int *b; > c=20; > *b=a; > return 0; > } > > IR of above code :- > define i32 @main() #0 { > entry: > 1. %retval = alloca i32, align 4 > 2. %a = alloca i32, align 4

Sorry I have actually edited the post. I did check its type by using isa<PointerType>(cast<AllocaInst>(instr->getOperand(1))->getAllocatedType()) but it is only detecting i32** %b on line 8 of IR as a pointer type. Whereas I also want to detect the i32* %1 on line 11 of IR as a pointer type. So how can I do this?? -- View this message in context:

Hi, On 1 September 2013 15:47, Abhinash Jain <omnia at mailinator.com> wrote: > Sorry I have actually edited the post. This is primarily an e-mail list; the vast majority of us won't see any edits (on some web mirror?). > I did check its type by using > isa<PointerType>(cast<AllocaInst>(instr->getOperand(1))->getAllocatedType()) > but it is only detecting