search for: mattrs

Hi, When setting -mattr option on X86, I would like to treat MMX separately from SSE levels. This would allow a client who sets the attributes directly to set the SSE level independent of MMX, e.g., llc -march=x86 -mattr=sse41, one would get sse4.1 with mmx disabled while llc -march=x86 -mattr=mmx -mattr=sse42 will get mmx and sse42. If anyone objects to this change, please let me

Might you instead consider just adding a -disable-mmx option? Preston On Thu, 2008-20-11 at 02:57 -0500, Mon Ping Wang wrote: > Hi, > > When setting -mattr option on X86, I would like to treat MMX > separately from SSE levels. This would allow a client who sets the > attributes directly to set the SSE level independent of MMX, e.g., llc > -march=x86 -mattr=sse41, one would get

On Nov 19, 2008, at 11:57 PMPST, Mon Ping Wang wrote: > Hi, > > When setting -mattr option on X86, I would like to treat MMX > separately from SSE levels. This would allow a client who sets the > attributes directly to set the SSE level independent of MMX, e.g., llc > -march=x86 -mattr=sse41, one would get sse4.1 with mmx disabled while > llc -march=x86 -mattr=mmx

Hi Dale, I will not change the default. I would dislike to see any regressions due to this type of change. -- Mon Ping On Nov 20, 2008, at 10:12 AM, Dale Johannesen wrote: > > On Nov 19, 2008, at 11:57 PMPST, Mon Ping Wang wrote: > >> Hi, >> >> When setting -mattr option on X86, I would like to treat MMX >> separately from SSE levels. This would allow a

On Nov 20, 2008, at 8:31 AM, Preston Gurd wrote: > Might you instead consider just adding a -disable-mmx option? I agree, this is a better approach. This distinguishes between capabilities of the chip and the desire to codegen specific vectors one way or another. -Chris > > Preston > > On Thu, 2008-20-11 at 02:57 -0500, Mon Ping Wang wrote: >> Hi, >> >>

On Thu, 20 Apr 2006, Simon Burton wrote: >>> From what I remember, this is a bug in debian libc: >> some floating point flags are set incorrectly causing SIGFPE. >> Can't find the bug report ATM. > > Oh, it just showed up on numpy-discussion: > http://sources.redhat.com/bugzilla/show_bug.cgi?id=10 > > """ > #include <fenv.h> > void

On Thu, 2013-01-31 at 09:42 -0600, Hal Finkel wrote: > ----- Original Message ----- > > From: "Bill Schmidt" <wschmidt at linux.vnet.ibm.com> > > To: llvmdev at cs.uiuc.edu > > Sent: Thursday, January 31, 2013 9:26:15 AM > > Subject: [LLVMdev] Getting command line options to affect subtarget features > > > > The problem I'm trying to

On Thu, 2013-01-31 at 11:23 -0600, Bill Schmidt wrote: > On Thu, 2013-01-31 at 10:17 -0600, Bill Schmidt wrote: > > > > On Thu, 2013-01-31 at 09:42 -0600, Hal Finkel wrote: > > > ----- Original Message ----- > > > > From: "Bill Schmidt" <wschmidt at linux.vnet.ibm.com> > > > > To: llvmdev at cs.uiuc.edu > > > > Sent:

On Thu, 2013-01-31 at 10:17 -0600, Bill Schmidt wrote: > > On Thu, 2013-01-31 at 09:42 -0600, Hal Finkel wrote: > > ----- Original Message ----- > > > From: "Bill Schmidt" <wschmidt at linux.vnet.ibm.com> > > > To: llvmdev at cs.uiuc.edu > > > Sent: Thursday, January 31, 2013 9:26:15 AM > > > Subject: [LLVMdev] Getting command line

Hi, I’ve run into a case where `llc -mattr=+soft-float` for "armv7-unknown-linux-androideabi” segfaults, while `llc -float-abi=soft` does not. Similarly if the "target-features"="+soft-float” metadata is embedded, llc segfaults. I fear I’m missing something rather subtle here, could someone help me understand the differences? Cheers, Moritz

Hi Moritz, On 26 September 2017 at 09:09, Moritz Angermann via llvm-dev <llvm-dev at lists.llvm.org> wrote: > I’ve run into a case where `llc -mattr=+soft-float` for > "armv7-unknown-linux-androideabi” segfaults, while > `llc -float-abi=soft` does not. Similarly if the > "target-features"="+soft-float” metadata is embedded, > llc segfaults. The float-abi

On Thu, 2013-01-31 at 11:29 -0600, Bill Schmidt wrote: > On Thu, 2013-01-31 at 11:23 -0600, Bill Schmidt wrote: > > On Thu, 2013-01-31 at 10:17 -0600, Bill Schmidt wrote: > > > > > > On Thu, 2013-01-31 at 09:42 -0600, Hal Finkel wrote: > > > > ----- Original Message ----- > > > > > From: "Bill Schmidt" <wschmidt at

On Wed, 19 Apr 2006 18:21:32 -0500 (CDT) Chris Lattner <sabre at nondot.org> wrote: > > > I don't see what this has to do with anything, but... Me neither. > > > Is there a way I can disable SSE instruction generation in LLVM ? > > Yes. Pass -mattr=-sse1,-sse2,-sse3 to lli or llc. Right, that fixed it. BTW: from the --help:

Hi Tim, Ohh, I completely forgot to attach the source. Running this with: $ llc -O2 -mcpu=generic HeapStackCheck.ll -mattr=+soft-float -o HeapStackCheck.s results in 0 llc 0x000000010fea65e6 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 37 1 llc 0x000000010fea5b3a llvm::sys::RunSignalHandlers() + 83 2 llc

Hello, I'm trying to convince llc to compile into thumb2 ISA on ARMv7. I'm using: -march=thumb -mattr=v7,thumb2,vfp3 but llc complains about this with: llc: error: invalid target 'thumb -mattr=v7,thumb2,vfp3' I'm using LLVM from Aug 29 2011. To me the set of options looks sane so I'd like to ask what's wrong with this. Thanks! Karel

The problem I'm trying to solve: Invoking clang on PowerPC with -fno-altivec has no effect. >From what I've been able to piece together, PPC.td specifies various CPUs and the processor features available on each. So for example we have: def FeatureAltivec : SubtargetFeature<"altivec","HasAltivec", "true",

----- Original Message ----- > From: "Bill Schmidt" <wschmidt at linux.vnet.ibm.com> > To: llvmdev at cs.uiuc.edu > Sent: Thursday, January 31, 2013 9:26:15 AM > Subject: [LLVMdev] Getting command line options to affect subtarget features > > The problem I'm trying to solve: Invoking clang on PowerPC with > -fno-altivec has no effect. > > From what

Hi, Justin PTX version in CUDA 4.0 has changed from 2.2 to 2.3. I add ptx23 subtarget and update a testcase. Is that O.K.? Regards, chenwj -- Wei-Ren Chen (陳韋任) Computer Systems Lab, Institute of Information Science, Academia Sinica, Taiwan (R.O.C.) Tel:886-2-2788-3799 #1667 -------------- next part -------------- Index: test/CodeGen/PTX/options.ll

Hi Karel, It actually looks like the argument parser has parsed "thumb -mattr=v7,thumb2,vfp3" as the full argument to "-march=". Strange. The easiest way to get what you want is probably "-mtriple thumbv7--". v7 has Thumb2 enabled and VFPv3 (along with NEON) by default. Cheers, James ________________________________________ From: llvmdev-bounces at cs.uiuc.edu

I am using llvm-project compiling risc-v programs. llvm-project version:dd8a2013dc1804be1b7d9cffacad2e984300bd22 Instructons to build LLVM+clang: ``` cmake -G Ninja -DCMAKE_INSTALL_PREFIX=/home/llvm/workspace/llvm/llvm-project/llvm_install -DCMAKE_BUILD_TYPE="Release" -DDEFAULT_SYSROOT="/home/llvm/workspace/riscv/riscv-tc-20200220/bin/riscv32-unknown-elf"