search for: v4t

...later in the build, so it has to be compiled with the "build" compiler. Usually, autotoolized Makefiles solve this by using CC_FOR_BUILD and the related CFLAGS_FOR_BUILD and LDFLAGS_FOR_BUILD. Error message, taken during a build for ARM here: ----------8<----------8<---------- arm-v4t-linux-gnueabi-gcc -std=gnu99 -g -O2 -DHAVE_CONFIG_H -Wall -W -I./popt -L/some/path/sysroot/arm-v4t-linux-gnueabi/lib -L/some/path/sysroot/arm-v4t-linux-gnueabi/usr/lib -Wl,-rpath-link -Wl,/some/path/sysroot/arm-v4t-linux-gnueabi/usr/lib -o mkrounding -I. ./mkrounding.c ./mkrounding >rounding.h /...

...y work on a gcc backend did show me that for a beginner like me, it is rather likely that the first attempts will break something. Thus, being completely new to the llvm project I think that it's essential to first establish a suitable regression test setup. My plan is to run the tests for the v4t platform in thumb-only mode where free simulators are available and which behaves (at least with respect to the epilogue) very much like v6m. From former work on gcc I'm used to the possibilty to run regression tests in a simulator for the target platform (there with the expect script mechani...

...angasek <steve.langasek at canonical.com> ----- Date: Wed, 16 Feb 2011 22:05:42 -0000 From: Steve Langasek <steve.langasek at canonical.com> Subject: [Bug 527720] Re: thumb2 porting issues identified: klibc uses mov.*pc I've also touched it up to be mergeable with Debian (support v4t builds with #ifdef). Confirmed that installing the resulting klibc packages on my beagleboard gives me a successfully-booting initramfs with klibc; and the vfork/setjmptest test cases all pass in the klibc package tree. Fixes: https://bugs.launchpad.net/ubuntu/+source/klibc/+bug/527720 --- klibc...

Dear ML, Anton, Thank you for your answer and your help. I had a look at ARM.td of LLVM 2.6 (in lib/Target/ARM..) where I found following definitions: // V4T Processors. def : ProcNoItin<"arm7tdmi", [ArchV4T]>; def : ProcNoItin<"arm7tdmi-s", [ArchV4T]>; def : ProcNoItin<"arm710t", [ArchV4T]>; def : ProcNoItin<"arm720t", [ArchV4T]>; def : ProcNoItin<"arm9&...

Hi Seb, The ARM instruction set is a fixed-width 32-bit instruction set that has been around since the early days of ARM. Modern (armv4t onwards) cores mostly have another instruction set that can be used in tandem, the "thumb" instruction set. This is a variable width (16 or 32 bit) instruction set that provides a subset of the ARM instruction set and was intended to provide the amount of functionality that compilers requ...

...> To: Sebastien DELDON-GNB > Cc: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] llc support for ARM predication ? > > Hi Seb, > > The ARM instruction set is a fixed-width 32-bit instruction set that > has > been around since the early days of ARM. > > Modern (armv4t onwards) cores mostly have another instruction set that > can be used in tandem, the "thumb" instruction set. This is a variable > width (16 or 32 bit) instruction set that provides a subset of the ARM > instruction set and was intended to provide the amount of functionality >...

Hi James, Thanks for the answer, can you elaborate on difference between thumb, thumb2, ARM, thumbv7. I'm a bit lost right now. When specifying thumbv7 llc will generate thumb only code, not thumb2 ? Best Regards Seb > -----Original Message----- > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > On Behalf Of James Molloy > Sent: Tuesday, May 29,

Jim/Tim/Renato, A few days ago (has it been weeks now?) we discussed a codegen problem on armv4t having to do with lo->lo register copies. I'd like to start that discussion again, this time with a patch. A brief summary of the problem for folks who didn't catch the discussion earlier, and those like me who forget what they ate for breakfast: ;] The mov instruction on armv4t (speci...

Hello, Pazzo > Any clue? Yes. Sorry, my fault - next time I should check ARM docs before replying. ARM7TDMI is ARMv4T and this is not supported by LLVM (LLVM does v5+ codegen). -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State University

> > $ qemu-arm -cpu ? > > Available CPUs: > > arm926 arm946 arm1026 arm1136 arm1136-r2 arm1176 arm11mpcore > > cortex-m3 > > cortex-a8 > > cortex-a8-r2 cortex-a9 cortex-a15 ti925t pxa250 sa1100 sa1110 > pxa255 pxa260 > > pxa261 pxa262 pxa270 pxa270-a0 pxa270-a1 pxa270-b0 pxa270-b1 xa270- > c0 > > pxa270-c5 any > > >

...// Kalimba: generic kalimba }; - enum SubArchType { - NoSubArch, - - ARMSubArch_v8, - ARMSubArch_v7, - ARMSubArch_v7em, - ARMSubArch_v7m, - ARMSubArch_v7s, - ARMSubArch_v6, - ARMSubArch_v6m, - ARMSubArch_v6t2, - ARMSubArch_v5, - ARMSubArch_v5te, - ARMSubArch_v4t, - ARMSubArch_v4 - }; enum VendorType { UnknownVendor, @@ -104,7 +89,8 @@ BGQ, Freescale, IBM, - NVIDIA + NVIDIA, + CSR }; enum OSType { UnknownOS, @@ -164,9 +150,6 @@ /// The parsed arch type. ArchType Arch; - /// The parsed subarch...

Dear Anton, Thank you again for your help! I tried with the following options (adding --with-cpu=arm7tdmi and using binutils from cvs snapshot): ../llvm-gcc4.2-2.6.source/configure --prefix=/usr/local/cross-llvm-gcc-arm-elf-4.2-2.6 --program-prefix=llvm- --enable-llvm=/Users/dummy/Develop/llvm/llvm-build --enable-languages=c,c++ --host=i686-apple-darwin9 --build=i686-apple-darwin9

I’m using rust head version that currently use llvm 3.7 … Thanks. Frédéric. > On 11 Sep 2015, at 13:29, Bruce Hoult <bruce at hoult.org> wrote: > > What LLVM version are you using? > > There were some bugs around switching ARM/Thumb mode on ARMv4 fixed in 3.6. > > On Fri, Sep 11, 2015 at 1:20 PM, Frédéric Richez <llvm-dev at lists.llvm.org <mailto:llvm-dev

llvm-toolchain-3.8 seems to have problems on debian armel and raspbian. On raspbian it builds but our armv7 contamination checker blocked it from entering the repo. Further investigation showed that "compiler-rt" was being built with -march=armv7 . I was able to remove the -march with some build-system hacker but then I got a failure on

...gt; // Definition of the instruction class NOT CHANGED. >> // Name of the Instruction Class changed from S to XTYPE from V2/V3 to V4. >> class SInst<dag outs, dag ins, string asmstr, list<dag> pattern> >> -//: InstHexagon<outs, ins, asmstr, pattern, cstr, !if(V4T, XTYPE_V4, M)> { >> - : InstHexagon<outs, ins, asmstr, pattern, "", S> { >> -// : InstHexagon<outs, ins, asmstr, pattern, "", S> { >> + : InstHexagon<outs, ins, asmstr, pattern, "", S, TypeXTYPE> { >> bits<5&g...

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