similar to: [LLVMdev] __builtin_malloc, __builtin support

Hi, Is "__builtin_malloc" function supported in LLVM...? I checked in "tools/clang/include/clang/ > > Basic/Builtins.def", > "tools/clang/lib/CodeGen/CGBuiltin.cpp" and couldn't find the > implementation. > Could anyone please comment about it. > > Thanks in advance, > Viswa > > -------------- next part -------------- An HTML

One of the issues the LLVMLinux project is having is with the use of named registers in the Linux kernel code. The kernel uses something like this in order to assign a C variable name to a register (one for each kernel arch). register unsigned long current_stack_pointer asm("esp"); clang doesn't allow this kind of thing which required a patch which less efficient: #define

Hi, For now no. But I will add this three builtins to CGBuiltin.cpp. If you want, you can be a reviewer of this change. Regards Michael Zuckerman From: Craig Topper [mailto:craig.topper at gmail.com] Sent: Thursday, April 28, 2016 04:53 To: Zuckerman, Michael <michael.zuckerman at intel.com> Subject: Re: r267690 - [Clang][BuiltIn][AVX512]Adding intrinsics for vmovntdqa vmovntpd vmovntps

Hi LLVM developers, After Remove int_x86_sse2_psll_dq_bs and int_x86_sse2_psrl_dq_bs intrinsics. The builtins aren't used by clang. https://reviews.llvm.org/rL229069 there was no Intrinsic::x86_sse2_psrl_dq any more, then how to migrate: Function *F = Intrinsic::getDeclaration(TheModule, Intrinsic::x86_sse2_psrl_dq); Result = Builder.CreateCall(F,

Hi , In the future, we will address this issue. Regards Michael Zuckerman From: Eric Christopher [mailto:echristo at gmail.com] Sent: Sunday, May 01, 2016 19:54 To: Zuckerman, Michael <michael.zuckerman at intel.com>; Craig Topper <craig.topper at gmail.com> Cc: llvm-dev at lists.llvm.org Subject: Re: [llvm-dev] r267690 - [Clang][BuiltIn][AVX512]Adding intrinsics for vmovntdqa

Hello, I was implementing the llvm_any_type in my intrinsic def int_csa_xxx : Intrinsic<[llvm_any_ty], [llvm_i32_ty]>; as the following in its corresponding builtins in Builtins.def: BUILTIN(__builtin_xxx, "v.", "nt") the "t" was sufficient here to not perform any type checking. The type checking was handled in CGBuiltin.cpp. This was working until

After worked around the problem in SimplifyCFG.cpp (calling isCast() instead of comparing opcode), I hit another gcc crash for FunctionImport.cpp line 480, which I have no idea what's wrong with the code. "Luckily", I found gcc4.8.2 and gave it a try, both crashes are gone. *New problem though:* /llvm-clang-trunk/src/tools/clang/lib/CodeGen/CGBuiltin.cpp: In member function

GCCBuiltin just gives it a name for clang to lookup. Generally they match up with builtins that gcc also implements, but that's not a requirement. If you add a builtin with the same name to the builtin file in clang's include/clang/Basic/Builtins*.def then they will find each other. You can also just add a builtin to clang's builtin file and catch it in clang's

Hi, Clang crashes when tried to compile from .ast to .s for below sample code, inline-test.c ** *extern inline int func1 (void) { return 0; } inline int func1 (void) { return 1; }* clang *works fine* for .c -> .s, *>clang inline-test.c -std=c99 -fgnu89-inline -S -o inline-test.s * But *crashes* when tried to generate .s from .ast for same file, *>clang inline-test.c -std=c99

Hi, Could anyone please comment on this ? Regards, Rajesh On Wed, Dec 19, 2012 at 6:54 PM, rajesh viswabramana < viswabramana.rajesh at gmail.com> wrote: > Hi, > > Clang crashes when tried to compile from .ast to .s for below sample code, > > inline-test.c > ** > *extern inline int func1 (void) { return 0; } > inline int func1 (void) { return 1; }* > >

Hi Everyone！ I am a newbie at llvm. So the question may be fundamental but difficult to me. I want to add an trinsics in x86 and make the following changes.I want that max_qb can find the max of two Integers and return it. In src/include/llvm/IR/Intrinsics.td : let TargetPrefix = "x86" in { def int_x86_max_qb: GCCBuiltin<"__builtin_x86_max_qb">,

This patch adds EmitTypeAuxAttribute() function to CGDebugInfo, which allows other parts of clang issue auxiliary information through an enumeration type in Dwarf information. For example, by calling DI->EmitTypeAuxAttribute(type, "ID", 1234); We can get following information in dwarf: <1><3f>: Abbrev Number: 3 (DW_TAG_structure_type) <40> DW_AT_name

Thanks Rafael, Hello All, Could anyone please comment, which part in selectiondag need to be understood/modified to fix this. Regards, Rajesh On Wed, Nov 21, 2012 at 2:38 AM, Rafael Espíndola < rafael.espindola at gmail.com> wrote: > I reported http://llvm.org/pr14393 to track it. > > On 20 November 2012 05:18, rajesh viswabramana > <viswabramana.rajesh at

Hi, Clang crashes when below snippet of code is compiled (used latest svn version) *double func1() { double x ;* * asm ( "" : "=r"(x) : "0"(x) ); return x; }* > *clang -S test1.c* > *Assertion failed: (PartVT.isInteger() || PartVT == MVT::x86mmx) && ValueVT.isInteger() && "Unknown mismatch!", file

I reported http://llvm.org/pr14393 to track it. On 20 November 2012 05:18, rajesh viswabramana <viswabramana.rajesh at gmail.com> wrote: > Hi, > > Clang crashes when below snippet of code is compiled (used latest svn > version) > > double func1() > { > double x ; > asm ( "" : "=r"(x) : "0"(x) ); > return x; > } >

Hi all, I tried same code on gcc for arm(hard float), double f2 () { double x = 10.0; asm ("" : "=r" (x) : "0" (x)); return x; } > arm-linux-gnueabi-gcc -S -mhard-float pr39058.c -O2 Generates proper code, mov r3, #0 mov r2, #0 movt r3, 16420 fmdrr d0, r2, r3 bx lr But llvm crashes, If data type is "double",

If I do T.getArch() == xxx TLI.setUnavailable(LibFunc::copysign) then this works at generating a call instead of not being able to select the ISD::FCOPYSIGN, but I don't know why I don't need to do this for other LibFunc functions (such as floor, etc... these generate call just fine)? Thanks, Ryan On Tue, Jun 14, 2016 at 11:58 AM, Ryan Taylor <ryta1203 at gmail.com> wrote:

Hi Björn, On 9 April 2018 at 09:43, via llvm-dev <llvm-dev at lists.llvm.org> wrote: > 1.) Can I teach the LLVM new platform depended intrinsics? > Like I provide assembly code and want to create a custom intrinsic for it. Yes. You'd add a declaration to include/llvm/IR/IntrinsicsXYZ.td (where XYZ is your target), and then you can select them with a normal pattern in your

This is the definition of BITCAST in include/llvm/CodeGen/ISDOpcodes.h: // BITCAST - This operator converts between integer, vector and FP // values, as if the value was stored to memory with one type and loaded // from the same address with the other type (or equivalently for vector // format conversions, etc). The source and result are required to have // the same bit size (e.g. f32 <->

On Apr 27, 2012, at 2:02 PM, Eli Friedman wrote: > On Fri, Apr 27, 2012 at 12:09 PM, Akira Hatanaka <ahatanak at gmail.com> wrote: >> while gcc does it in two move instructions: >> >> $ gcc foo1.c -S -o -O3 >> foo1: >> .LFB0: >> .cfi_startproc >> movq %xmm0, -8(%rsp) >> movss -8(%rsp), %xmm0 >> >>