similar to: [LLVMdev] How to get MIPS from clang + llvm ?

I didn't have Mips board. I compile as the commands and check the asm output as below. 1. Question: The distance of caller arg[4] and arg[5] is 4 bytes. But the the callee get every arg[] by 8 bytes offset (arg_ptr1+8 or arg_ptr2+8). I assume the #BB#4 and #BB#5 are the arg_ptr which is the pointer to access the stack arguments. 2. Question: Stack memory 28($sp) has no initial value. If

Does it make a difference if you give the "-target" option to clang? $ clang -target mips-linux-gnu ch8_3.cpp -o ch8_3.bc -emit-llvm -c The .s file generated this way looks quite different from the one in your email. On Tue, Feb 19, 2013 at 5:06 PM, Jonathan <gamma_chen at yahoo.com.tw> wrote: > I didn't have Mips board. I compile as the commands and check the asm >

Which part of the generated code do you think is not correct? Could you be more specific? I compiled this program with clang and ran it on a mips board. It returns the expected result (21). On Tue, Feb 19, 2013 at 4:15 AM, Jonathan <gamma_chen at yahoo.com.tw> wrote: > I check the Mips backend for the following C code fragment compile result. > It seems not correct. Is it my

I check the Mips backend for the following C code fragment compile result. It seems not correct. Is it my misunderstand or it's a bug. //ch8_3.cpp #include <stdarg.h> int sum_i(int amount, ...) { int i = 0; int val = 0; int sum = 0; va_list vl; va_start(vl, amount); for (i = 0; i < amount; i++) { val = va_arg(vl, int); sum += val; } va_end(vl);

Hi, > Can you post the llc command line you're using? Can you post an LLVM IR > file that causes this behavior? yes: ${LLVM_PATH}/bin/llc -o helloworld.s -march=nvptx helloworld.ll where LLVM_PATH my local installation path for LLVM. Also attaching helloworld.c: #include <stdio.h> int main(void) { printf("Hello World!\n"); return 0; } and helloworld.ll:

Alright, couple of points here: 1. Address space 0 is invalid for global variables. This is causing a crash in llc where we use llvm_unreachable() on this case. This is most likely why you're seeing llc run forever. The fix for this is to use address space 1 for globals, which puts them into PTX global memory. On our side, we should provide a meaningful error message in this case. 2. The

On Mon, Feb 4, 2013 at 1:09 PM, <nkavv at physics.auth.gr> wrote: > Hi Justin, > > > Has anyone had similar problems with the NVPTX backend? Shouldn't this >>> code be linked to the AsmPrinter library for NVPTX (already)? >>> >> >> What do you mean by "doesn't work"? The AsmPrinter library really houses >> the MCInst

Hi Justin, >> Has anyone had similar problems with the NVPTX backend? Shouldn't this >> code be linked to the AsmPrinter library for NVPTX (already)? > > What do you mean by "doesn't work"? The AsmPrinter library really houses > the MCInst printer, which isn't implemented for NVPTX yet. The older > assembly printer works just fine. This is

Hello everyone. I use this command clang -emit-llvm hello.c -c -o hello.bc llc hello.bc -march=mipsel -relocation-model=static -o hello.s to produce this MIPS code: .section .mdebug.abi32 .previous .file "hello.bc" .text .globl main .align 2 .type main, at function .set nomips16 # @main .ent main main: .cfi_startproc .frame $sp,32,$ra .mask 0x80000000,-4 .fmask

i have this code typedef long long L; typedef integer I; void test2(auto L p0, auto L p1, auto L p2, auto L p4, ...) { va_list select; va_start (select, p4); report( va_arg(select,L) ); report( va_arg(select,I) ); report( va_arg(select,L) );

I need to be able to emit .globl for the soft float routines used by mips16. The routines are called but there is no .globl definition for them. How can I do this? Background: I have a strange issue that I encountered with mips16 hard float. Part of mips16 hard float is to emit calls to runtime routines with the same signature as usual soft float routines, except that they are implemented

Hi, I am hoping that someone can help me figure out how to prevent the insertion of "memcpy" from the assembly source. My target is an instruction set simulator that doesn't support this. Thank you for your valuable time. Wolf *Here are my compile commands:* $ clang -emit-llvm -fno-builtin -o3 --target=mips -S matrix_float.c -o vl_matrix_float.ll $ llc vl_matrix_float.ll *IR

Hi Reed, Still catching up on email, so hope this isn't already covered... reed kotler <rkotler at mips.com> writes: > I have a strange issue that I encountered with mips16 hard float. > > Part of mips16 hard float is to emit calls to runtime routines with the > same signature as usual soft float routines, except that they are > implemented using mips32 code which uses

Hi all, I am doing emulation on a custom processor. For this I need hexcode for the C application program . Is there any llvm command/function that can spit out the hexcode just like objdump in gcc? Thanks -- View this message in context: http://old.nabble.com/hexcode-from-llvm-tp28612686p28612686.html Sent from the LLVM - Dev mailing list archive at Nabble.com.

Hi All, I work on a backend for a target similar to Mips, where large immediates are loaded into registers with 2 instructions, 1 to load the MSBits and 1 to load the LSBits. I've noticed a recurring pattern where, despite low register pressure, these constants will be rematerialized in every iteration of a loop, rather than being hoisted. Here's an example using the

Hi Bill Wendling. I am trying to get a hexcode as shown below for mips processor using llvm Disassembly of section .text: 00000000 <main>: 0: 27bdffe8 addiu sp,sp,-24 4: afbe0010 sw s8,16(sp) 8: 03a0f021 move s8,sp c: 24020004 li v0,4 10: afc20008 sw v0,8(s8) 14: 24020005 li v0,5 18: afc20004

I have installed LLVM on my machine (ubuntu) a while ago. I think my LLVM version is 2.8. is it supported in 2.8 ? When I install i didn't configure LLVM for mips. Do I have to configure it when I build ? Thanks in advance. Really appreciate it. --- On Thu, 9/1/11, Bruno Cardoso Lopes <bruno.cardoso at gmail.com> wrote: From: Bruno Cardoso Lopes <bruno.cardoso at gmail.com>

> I have installed LLVM on my machine (ubuntu) a while ago. I think my LLVM version is 2.8. is it supported in 2.8 ? When I install i didn't configure LLVM for mips. Do I have to configure it when I build ? I don't know what's the default llvm configuration for ubuntu! But you can check for mips support using "llc --version". Yes, it's supported in 2.8, although it

On May 19, 2010, at 12:01 PM, JayaSus wrote: > > Hi all, > > I am doing emulation on a custom processor. For this I need hexcode for the > C application program . Is there any llvm command/function that can spit out > the hexcode just like objdump in gcc? > Hi JayaSus, I'm confused by your question. Do you mean the LLVM IR "object code" or the resulting

> > It was essentially my own mistake. After the Embedded C++ IDE crashed unexpectedly, > the .lib file was no longer present in the project settings (the project had not been saved) > so all the errors I got were caused by a missing .lib reference in the link stage! > I had to change my cross compiler target to "arm-wince-pe" because otherwise the > object/.lib files