On Thu, Jun 26, 2014 at 5:47 AM, Adam Nemet <anemet at apple.com> wrote:> Hi Jun, > > On Jun 25, 2014, at 8:14 AM, Jun Koi <junkoi2004 at gmail.com> wrote: > > > Hi, > > > > I am trying to assemble below instruction with latest LLVM code, but > fail. Am I doing something wrong, or is this a bug? > > > > > > $ echo "vaddps zmm7 {k6}, zmm2, zmm4, > {rd-sae}"|./Release+Asserts/bin/llvm-mc -assemble -triple=x86_64 -mcpu=knl > -show-encoding -x86-asm-syntax=intel > > .text > > <stdin>:1:31: error: unknown token in expression > > vaddps zmm7 {k6}, zmm2, zmm4, {rd-sae} > > ^ > > <stdin>:1:31: error: unknown token in expression > > vaddps zmm7 {k6}, zmm2, zmm4, {rd-sae} > > Unfortunately, I don’t think sae is supported yet. (I think the ^ is > misplaced; it should point to the {rd-sae}.) > > (I may be wrong here but looks like even the X86AsmParser is lacking > support for sae even though some instruction in the .td file contain {sae} > in their asm syntax.) >Oh it seems also the disasm support for sae is lacking: $ echo "62 f1 6c 1e 58 fc"|./Release+Asserts/bin/llvm-mc -disassemble -triple=x86_64 .text <stdin>:1:4: error: invalid input token 62 f1 6c 1e 58 fc I hope there is a plan to o support this SAE stuff soon? Thanks, Jun -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140626/852c2963/attachment.html>
> On Jun 25, 2014, at 7:05 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > > > > >> On Thu, Jun 26, 2014 at 5:47 AM, Adam Nemet <anemet at apple.com> wrote: >> Hi Jun, >> >> On Jun 25, 2014, at 8:14 AM, Jun Koi <junkoi2004 at gmail.com> wrote: >> >> > Hi, >> > >> > I am trying to assemble below instruction with latest LLVM code, but fail. Am I doing something wrong, or is this a bug? >> > >> > >> > $ echo "vaddps zmm7 {k6}, zmm2, zmm4, {rd-sae}"|./Release+Asserts/bin/llvm-mc -assemble -triple=x86_64 -mcpu=knl -show-encoding -x86-asm-syntax=intel >> > .text >> > <stdin>:1:31: error: unknown token in expression >> > vaddps zmm7 {k6}, zmm2, zmm4, {rd-sae} >> > ^ >> > <stdin>:1:31: error: unknown token in expression >> > vaddps zmm7 {k6}, zmm2, zmm4, {rd-sae} >> >> Unfortunately, I don’t think sae is supported yet. (I think the ^ is misplaced; it should point to the {rd-sae}.) >> >> (I may be wrong here but looks like even the X86AsmParser is lacking support for sae even though some instruction in the .td file contain {sae} in their asm syntax.) > > Oh it seems also the disasm support for sae is lacking: > > $ echo "62 f1 6c 1e 58 fc"|./Release+Asserts/bin/llvm-mc -disassemble -triple=x86_64 > .text > <stdin>:1:4: error: invalid input token > 62 f1 6c 1e 58 fcThat's not too surprising; assembler and disassembler support go hand in hand.> I hope there is a plan to o support this SAE stuff soon?Assembler support is in pretty good shape otherwise. I expect that this will be added as soon as someone really needs it. Help is always welcome ;) Adam> > > Thanks, > Jun >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140625/3b024c4c/attachment.html>
On Thu, Jun 26, 2014 at 10:23 AM, Adam Nemet <anemet at apple.com> wrote:> > > On Jun 25, 2014, at 7:05 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > > > > > On Thu, Jun 26, 2014 at 5:47 AM, Adam Nemet <anemet at apple.com> wrote: > >> Hi Jun, >> >> On Jun 25, 2014, at 8:14 AM, Jun Koi <junkoi2004 at gmail.com> wrote: >> >> > Hi, >> > >> > I am trying to assemble below instruction with latest LLVM code, but >> fail. Am I doing something wrong, or is this a bug? >> > >> > >> > $ echo "vaddps zmm7 {k6}, zmm2, zmm4, >> {rd-sae}"|./Release+Asserts/bin/llvm-mc -assemble -triple=x86_64 -mcpu=knl >> -show-encoding -x86-asm-syntax=intel >> > .text >> > <stdin>:1:31: error: unknown token in expression >> > vaddps zmm7 {k6}, zmm2, zmm4, {rd-sae} >> > ^ >> > <stdin>:1:31: error: unknown token in expression >> > vaddps zmm7 {k6}, zmm2, zmm4, {rd-sae} >> >> Unfortunately, I don’t think sae is supported yet. (I think the ^ is >> misplaced; it should point to the {rd-sae}.) >> >> (I may be wrong here but looks like even the X86AsmParser is lacking >> support for sae even though some instruction in the .td file contain {sae} >> in their asm syntax.) >> > > Oh it seems also the disasm support for sae is lacking: > > $ echo "62 f1 6c 1e 58 fc"|./Release+Asserts/bin/llvm-mc -disassemble > -triple=x86_64 > .text > <stdin>:1:4: error: invalid input token > 62 f1 6c 1e 58 fc > > > That's not too surprising; assembler and disassembler support go hand in > hand. > > I hope there is a plan to o support this SAE stuff soon? > > > Assembler support is in pretty good shape otherwise. I expect that this > will be added as soon as someone really needs it. Help is always welcome ;) > >Yes, I would love to, but do not know where to fix. Seems like I need to work on the lib/Target/X86/X86InstrAVX512.td file to add the missing SAE support? Thanks, Jun -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140626/dca75374/attachment.html>