search for: negl

Hello, I think I have come across an inconsistency between gcc and clang/llvm with respect to returning small structs. Given the following code: > struct s { > int a; > int b; > }; > > struct s3 { > int a; > int b; > int c; > }; > > struct s new_s(int v){ > struct s res; > res.a = v; > res.b = -v; > return res;

...00..147ad94 --- /dev/null +++ b/usr/klibc/arch/i386/libgcc/__negdi2.S @@ -0,0 +1,21 @@ +/* + * arch/i386/libgcc/__negdi2.S + * + * 64-bit negation + */ + + .text + .align 4 + .globl __negdi2 + .type __negdi2, at function +__negdi2: +#ifndef _REGPARM + movl 4(%esp),%eax + movl 8(%esp),%edx +#endif + negl %edx + negl %eax + sbbl $0,%edx + ret + + .size __negdi2,.-__negdi2 diff --git a/usr/klibc/arch/i386/open.S b/usr/klibc/arch/i386/open.S new file mode 100644 index 0000000..7cd136c --- /dev/null +++ b/usr/klibc/arch/i386/open.S @@ -0,0 +1,29 @@ +/* + * arch/i386/open.S + * + * Handle the open() sys...

Can you send the IR you are using? Volkan On Thu, Oct 8, 2015 at 6:28 AM Erdem Derebaşoğlu < erdemderebasoglu at hotmail.com> wrote: > Thanks. I enabled my pass. I have one resolved issue though: > MachineMemOperand::getAddrSpace() always returns zero. How can I use it to > distinguish private memory accesses? > > Erdem > > ------------------------------ > From:

...g 4 - pushl %ecx - pushl %edx - pushl %eax - movl %esp,%ecx -#else - leal 8(%esp),%ecx # Arguments already contiguous on-stack -#endif - - movl $__NR_socketcall,%eax - call *__syscall_entry - -#ifdef _REGPARM - addl $6*4, %esp -#endif - - cmpl $-4095,%eax # Error return? - - popl %ebx - - jb 1f - - negl %eax - movl %eax,errno - orl $-1,%eax # Return -1 -1: - ret - - .size __socketcall_common,.-__socketcall_common - -#endif diff --git a/usr/klibc/socketcalls.pl b/usr/klibc/socketcalls.pl index 3dac096..9df5949 100644 --- a/usr/klibc/socketcalls.pl +++ b/usr/klibc/socketcalls.pl @@ -42,44 +42,27 @@...

...rgument registers; the system + * call number in %eax. + */ + .text + .align 4 + .globl __syscall_common + .type __syscall_common, at function +__syscall_common: + movq %rcx,%r10 # The kernel uses %r10 istf %rcx + syscall + + cmpq $-4095,%rax + jnb 1f + ret + + # Error return, must set errno +1: + negl %eax + movl %eax,errno(%rip) # errno is type int, so 32 bits + orq $-1,%rax # orq $-1 smaller than movq $-1 + ret + + .size __syscall_common,.-__syscall_common diff --git a/usr/klibc/arch/x86_64/sysstub.ph b/usr/klibc/arch/x86_64/sysstub.ph new file mode 100644 index 0000000..e2d797b --- /dev/null...

...e <asm/unistd.h> + + .text + .align 4 + .globl vfork + .type vfork, @function +vfork: + mov (%rsp),%edx /* Return address */ + add $8,%rsp /* pop rdx and clear bits 63-32 */ + mov $__NR_vfork,%eax + syscall + push %rdx /* Push the return address back */ + cmp $-4095, %rax + jae 1f + ret +1: + negl %eax + movl %eax, errno(%rip) + or $-1,%rax + ret diff --git a/usr/klibc/lseek.c b/usr/klibc/lseek.c index f262d19..f0faa3b 100644 --- a/usr/klibc/lseek.c +++ b/usr/klibc/lseek.c @@ -11,7 +11,7 @@ #include <sys/syscall.h> #include <bitsize.h> -#if _BITSIZE == 32 +#if _BITSIZE == 32 &...

Hi all, I'm trying to compile asterisk on the mainframe (s390 / s390x) and I am running into issues. I was wondering if somebody could give a hand? I'm thinking that I should be able to do this. I have noticed that Debian even has binary RPM's out for Asterisk now. I'm trying to do this on SuSE SLES8 (with the 2.4 kernel). What I see is, an issue that arch=s390 isn't

I have updated the klibc patchset based on feedback received. In particular, the patchset has been reorganized so as not to break git-bisect. Additionally, this updates the patch base to 2.6.17-git12 (d38b69689c349f35502b92e20dafb30c62d49d63) and klibc 1.4.8; the main difference on the klibc side is removal of obsolete code. This is also available as a git tree at:

...; @@ -28,8 +28,7 @@ bb.nph: >> bb2: >> ret i32 %x_offs >> ; CHECK-LABEL: test2: >> -; CHECK: movl %e[[A0]], %eax >> -; CHECK: addl $-5, %eax >> +; CHECK: leal -5(%r[[A0:..]]), %eax >> ; CHECK: andl $-4, %eax >> ; CHECK: negl %eax >> ; CHECK: leal -4(%r[[A0]],%rax), %eax >> >> Modified: llvm/trunk/test/CodeGen/X86/load-slice.ll >> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/load-slice.ll?rev=192750&r1=192749&r2=192750&view=diff >> ==========...