Displaying 17 results from an estimated 17 matches for "mips64r6".
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2014 May 13
2
[LLVMdev] Instructions with overlapping encodings that are disambiguated by field comparisons
Hi,
I'm not sure how to handle some of the trickier instruction encodings in MIPS64r6. My problem is that some instructions determine the operation based on the relationship between two fields. For example, 'beqc $rs, $rt, offset' (branch if equal, no delay slot) and bovc (branch if addition would overflow, no delay slot) share the same major opcode and field layout. When th...
2015 May 11
8
[LLVMdev] 3.6.1 -rc1 has been tagged. Testing begins.
Hi,
I have tagged the 3.6.1-rc1 so testing can begin. We can always use
more testers, so if you are interested in helping, let me know.
Instructions for validating an LLVM release can be found here:
http://llvm.org/docs/ReleaseProcess.html
Reminder: We are using 3.6.0 as our baseline for regression testing.
Thanks,
Tom
2015 Mar 04
2
[LLVMdev] Mips patches for LLVM 3.5.2
...r227089 apply cleanly.
* Testcase from r221686 - [mips] Add preliminary support for the MIPS II target.
o Only the testcase minus the MIPS-II cases should be merged.
o Required to make r227089 apply cleanly.
* r226171 - [mips] Fix a typo in the compare patterns for MIPS32r6/MIPS64r6.
o Fixes bad code generation in the test-suite for certain option combinations.
* r225529 - [mips] Add support for accessing $gp as a named register.
o Fixes bad code generation in LLVMLinux
* r224425 and r225521 - [mips] Set GCC-compatible MIPS asssembler options before inl...
2019 Nov 13
3
Understanding targets
The term "target" is somewhat overloaded.
When llvm-config tells you it was built with the X86 target, that actually includes a variety of closely related architectures, such as x86_64, i386, and so on. Within the x86_64 architecture, there are many individual processor implementations that LLVM understands, such as Skylake, Bulldozer, and many many more.
What *clang* means by
2014 Jun 24
2
[LLVMdev] Is there any tool can generate MIPS ELF file?
...y. We're not working on any completely new ABI's but we are
>> fixing a compatibility flaw between the O32 ABI and a (currently)
>> unsupported extension that allows the efficient use of FR=1 mode (FPU
>> with 64-bit registers). This is going to be important since MIPS32r6/MIPS64r6
>> will not have direct support for FR=0 mode (FPU with 32-bit registers). At
>> the moment, this extension is available in all the tools and is enabled with -
>> mfp64. Unfortunately, it is not possible to inter-link O32 and O32+fp64 code
>> since they require the FPU to be...
2015 May 14
2
[LLVMdev] 3.6.1 -rc1 has been tagged. Testing begins.
...* For the 'mipsel-img-linux-gnu -mips32r6 -mfpxx', 'mipsel-img-linux-gnu -mmicromips' test runs I have several regressions that look like timeouts caused by a busy system. I'm re-running these at the moment and they are passing so far.
* For 'mips-img-linux-gnu -mips64r6 -mabi=n32' test run I have several regressions that look like timeouts caused by a busy system. I'll re-run these once the rest finish.
* For the 'mips-img-linux-gnu -mips64r6 -mabi=n32' test run I also have two failures that look like regressions. MultiSource/Benchmarks/tra...
2015 Jan 30
1
[LLVMdev] Different instruction encodings based on subtarget features
I am working on an LLVM backend for the AVR architecture, and am having
troubles working with the codegen layer, trying to get around the quirks of
the binary encodings of the AVR ISR.
There are several different families of AVR microcontrollers, each with a
minimum 'core' instruction set. Each family builds upon (or removes) the
core ISR with more instructions or different encodings.
My
2015 May 22
2
[LLVMdev] Moving Private Label Prefixes from MCAsmInfo to MCObjectFileInfo
...re very ambiguous. For example, in (most) GCC mips-linux-gnu/mips64-linux-gnu toolchains both triples produce 32-bit big-endian binaries for MIPS-I by default. Vendors can override the majority of this so it's entirely possible for mips-foo-linux-gnu to produce 64-bit little endian binaries for Mips64r6 by default. Additionally, when given the -EL option, mips-linux-gnu will produce little endian binaries despite having a big-endian triple. The same applies to a lot of our code generation options. The most complicated one I'm aware of is mips-mti-linux-gnu which can produce code for nearly any...
2014 Jun 18
2
[LLVMdev] Is there any tool can generate MIPS ELF file?
On Wed, Jun 18, 2014 at 2:03 AM, Matheus Almeida
<Matheus.Almeida at imgtec.com> wrote:
>> Why Imagination Technologies do not offer the latest MIPS ABI document download link just like the ISA docs?
> It's something we're considering to do and the documents should be available at some point in the [hopefully] not too distant future.
>
>> then why GCC disagree with
2014 Jun 23
2
[LLVMdev] Is there any tool can generate MIPS ELF file?
...t now.
>
> Not exactly. We're not working on any completely new ABI's but we are fixing a compatibility flaw between the O32 ABI and a (currently) unsupported extension that allows the efficient use of FR=1 mode (FPU with 64-bit registers). This is going to be important since MIPS32r6/MIPS64r6 will not have direct support for FR=0 mode (FPU with 32-bit registers). At the moment, this extension is available in all the tools and is enabled with -mfp64. Unfortunately, it is not possible to inter-link O32 and O32+fp64 code since they require the FPU to be in different modes. To fix the compa...
2014 Nov 24
4
[LLVMdev] Proposed patches for Clang 3.5.1
...rarg functions and this turns out to be broken on GCC too.
> In this case, it would help too if you could provide some release
> testing for MIPS.
I'll be testing natively for MIPS32, and MIPS32r2 (both endians). I'll also be testing cross-compilation for MIPS64r2 (both endians) and MIPS64r6 (both endians).
> Are you planning on back-porting these patches to 3.5 for personal use,
> even if they aren't going to be included in the official release?
If one of our customers requires it, yes. Otherwise, I'll stick to official releases. Sorry for the vague answer on this one....
2016 May 26
0
RFC: FileCheck Enhancements
But then I should write
// CHECK: something
// SSE: something
// SSE3: something
With this feature it can be write // {{[A-Z0-9]+}} : something
From: James Y Knight [mailto:jyknight at google.com]
Sent: Thursday, May 26, 2016 5:53 PM
To: Ehsan Amiri <ehsanamiri at gmail.com>
Cc: Elena Lepilkina <Elena.Lepilkina at synopsys.com>; llvm-dev <llvm-dev at lists.llvm.org>
Subject:
2016 May 26
3
RFC: FileCheck Enhancements
On Thu, May 26, 2016 at 10:35 AM, Ehsan Amiri via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> 7. Wildcard for prefixes - If some statements should be checked
> regardless prefix, it should be used //{{*}}, //{{*}}-NEXT, //{{*}}-SAME
> and etc.
>
>> 8. Prefix with regular expressions - If statement should be
>> checked if prefix matches some regular
2015 May 21
3
[LLVMdev] Moving Private Label Prefixes from MCAsmInfo to MCObjectFileInfo
Hi,
I've been having trouble properly resolving an issue with our assembly syntax. The prefix our assembler uses for private local/global labels depends on the object file format. For ELF32 they begin with '$' and for ELF64 they begin with '.L'. The object file format depends on the ABI, but multiple ABI's are usable with the same target triple so we can't select
2014 Nov 24
4
[LLVMdev] Proposed patches for Clang 3.5.1
Hi,
I'd like to propose the following patches for inclusion in Clang 3.5.1.
Proposed clang patches:
* r213769 - Fix test/Driver/cl-x86-flags.c by providing explicit -target
* r214025 - [Driver][Mips] Check output of -dynamic-linker arguments by the Clang driver
* r214662 - [Mips] Add the `mips64-linux-gnu` target to the test case to check `in128` type handling.
*
2019 Nov 14
4
Understanding targets
...be found in the "clang/lib/Basic/Targets/Mips.cpp". mips1 and mips5 accepted by Clang, but unsupported by code generator. I'm going to remove them from this list.
mips1, mips2, mips3, mips4, mips5,
mips32, mips32r2, mips32r3, mips32r5, mips32r6, mips64, mips64r2, mips64r3, mips64r5, mips64r6, octeon, octeon+, p5600
R3000 is a CPU implements mips1 instruction set architecture.
Unfortunately you cannot generate a code for this CPU using Clang.
--
Simon Atanasyan
Als GmbH eingetragen im Handelsregister Bad Homburg v.d.H. HRB 9816, USt.ID-Nr. DE 114 165 789 Geschäftsführer: Dr. Hiroshi N...
2016 May 24
12
RFC: FileCheck Enhancements
Hi everyone,
There was idea to add new directives to FileCheck:
1. Directive to use some patterns as named template with or without parameters.
2. CHECK-INCLUDE - Directive to include other file with checks to another.
3. Expressions repeat for CHECK - If statement should be checked several times repeat modifiers {n}, {n,m} , {,n}, {n,}, *, + can be used.
4. Repeat in