similar to: [LLVMdev] How to build static linked llvm?

Hi, Sorry for the newbie question. I downloaded llvm 1.8a and llvm-gcc3.4, tried out the simple "Hello, World" program but got the following error. My system is RedHat 9 $ ./hello lli: /home//llvm/lib/Target/X86/X86CodeEmitter.cpp:208: unsigned char ModRMByte(unsigned int, unsigned int, unsigned int): Assertion `Mod < 4 && RegOpcode < 8 && RM < 8 &&

I found a case which gcc can compile while llvm-gcc can not. I'm using the gcc4.1 and the most recent llvm-gcc. Here is the case: template <int N> class T { public: int V; }; T<4> test(T<4> a[4][8]) { return a[3][3]; } llvm-gcc dumped: fail.cpp: In function \u2018T<4> test(T<4> (*)[8])\u2019: fail.cpp:7: error: invalid use of incomplete type

Hi, I have a simple C case as following: int test(int x, int y) { return -x / -y; } With llvm-gcc -O1, I got: define i32 @test(i32 %x, i32 %y) nounwind { entry: sub i32 0, %x ; <i32>:0 [#uses=1] sub i32 0, %y ; <i32>:1 [#uses=1] sdiv i32 %0, %1 ; <i32>:2 [#uses=1] ret i32 %2 } With llvm-gcc -O2, I got: define i32 @test(i32 %x, i32 %y) nounwind { entry: sdiv i32

Current llvm-gcc 4.2 building failed on X86-64, here is the dump information: xgcc -B/home/zsth/projects/llvm.org/build/cfe4.2obj/./prev-gcc/ -B/home/zsth/projects/llvm.org/install/x86_64-unknown-linux-gnu/bin/ -I../../../cfe4.2/libcpp -I. -I../../../cfe4.2/libcpp/../include -I../../../cfe4.2/libcpp/include -DENABLE_LLVM -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes

Hi Sheng Am Dienstag, 4. März 2008 schrieb Zhou Sheng: > Current llvm-gcc 4.2 building failed on X86-64, here is the dump I am not followng head closely but may it be that the current head still doesn't support amd64 proper: gcc README.LLVM: "When targeting non-darwin X86-64/AMD-64/EM64-T, configure with --disable-shared. The LLVM X86-64 backend doesn't support PIC codegen on

Hi, Thanks, John, I just forgot the multi-thread issue. I'll write my own pass to handle this as for my project, it is just single-thread case. Sheng. Date: Thu, 22 May 2008 09:30:45 -0500 > From: John Criswell <criswell at cs.uiuc.edu> > Subject: Re: [LLVMdev] Eliminate Store-Load pair even the LoadInst is > volatile > To: LLVM Developers Mailing List

Hi, i used CVS to checkout the source of llvm and llvm-gcc, compiled and built them on my machine successfully. i tried a c-language hello program, it was OK. But when i tried a c++-language hello program, i got: ~/project/llvm/examples$ llvm-g++ t3.cc -o t3 gccld: /developer/zsth/project/llvm/src/llvm/lib/Analysis/IPA/CallGraph.cpp:277: void

Hi, i want to insert a PHI into one basicblock like this: %s.1 = phi int [ 80, %entry ], [ %tmp21, %bb17 ] then, insert a cast inst. into another basicblock like this: %s.1 = cast int %s.1 to uint But, when i do this, the llvm automatically change the same name into a new one. Actually, i found that sometimes, llvm will create bytecode containing two instructions with same name. So, how can

Hi, Here is C function: uint64_t mul(uint32_t x, uint32_t y) { return x * y; } current llvm-gcc-4.0 with -O3 will compile it to: define i64 @mul(i32 %x, i32 %y) nounwind { entry: %tmp3 = mul i32 %y, %x ; <i32> [#uses=1] %tmp34 = zext i32 %tmp3 to i64 ; <i64> [#uses=1] ret i64 %tmp34 } This seems incorrect. I think it should extend %x, %y to i64 first and

Hi, I encountered a problem about volatile quantifier when using llvm-gcc, here is the example: #define N 10 int sum(volatile int a[N]) { int sum = 0; unsigned i = 0; for (i = 0; i < N; ++i) sum += a[i]; return sum; } If I compile it as C code, then llvm-gcc will dump: define i32 @sum(i32* nocapture %a) nounwind { bb1.thread: %0 = volatile load i32* %a, align 4

This looks wrong to me, though the x86 backend produces code that does the right thing (reads each element once). If you change the code (see below) to read each element twice, llvm-gcc still does the right thing but llvm-g++ does not (i.e. it fails to read aech location twice). Current versions of gcc/g++ also look wrong. All 4 compilers (gcc,g++,llvm-gcc,llvm-g++) do the right thing when

Hi, I am working with llvm 1.3 on a sparcv9 machine. I have successfully built llvm and llvm-gcc frontend. I can run many tools including llvmgcc, llvm-dis, and llc. After using /opt/SUNWspro/bin/cc to assemble .s file into a program binary, I can run the binary correctly as well. I am interested in the JIT compiler (lli). When I directly run the LLVM bytecode using interpretation ("lli

Tianwei <tianwei.sheng at gmail.com> writes: > someone suggested me to use gold-plugin, I know nothing about it yet, I will > have a try later. Does anyone have a good solution for this problem? Afaik gold does not help here. I tried it and managed to only generate native code. I'm currently investigating an alternative approach to produce whole-program bitcodes: 1) add

Hi, i have compile and built the llvm-gcc4 and llvm 1.8a in my machine, but there is some problem about llvm-gcc4. It can not compile a cpp code like this: #include <iostream> using std::cout; using std::endl; int main() { cout << "Hello" << endl; } $llvm-g++ hello.cc -o hello /developer/zsth/llvm-gcc/install/bin/../lib/gcc/i686-pc-linux-gnu/4.0.1/../../..

> > Message: 4 > Date: Tue, 12 Aug 2008 13:23:52 -0700 > From: "Bill Wendling" <isanbard at gmail.com> > Subject: Re: [LLVMdev] A case where llvm created different cfg for > same code > To: "LLVM Developers Mailing List" <llvmdev at cs.uiuc.edu> > Message-ID: > <16e5fdf90808121323g1ae2a2e3lb6c5bd62521df621 at mail.gmail.com> >

Hi, Can any llvm pass change simple return branch into select/return pair? For example: define i10 @mod_N(i10 zeroext %a) zeroext { entry: %tmp2 = icmp ugt i10 %a, -400 ; <i1> [#uses=1] br i1 %tmp2, label %cond_true, label %return cond_true: ; preds = %entry %tmp5 = add i10 %a, 400 ; <i10> [#uses=1] ret i10 %tmp5 return: ; preds = %entry ret

Whoops, forgot to CC: the list. > >----- Forwarded Message ---- >From: Samuel Crow <samuraileumas at yahoo.com> >To: Sheng Zhou <zhousheng00 at gmail.com> >Sent: Tue, November 9, 2010 9:26:51 PM >Subject: Re: [LLVMdev] llvm-gcc not compatible with gcc on a small case? > > >Hi Sheng Zhou, > > >It shouldn't compile. You have the method declared

On Oct 8, 2006, at 1:15 AM, Zhou Sheng wrote: > i want to insert a PHI into one basicblock like this: > > %s.1 = phi int [ 80, %entry ], [ %tmp21, %bb17 ] > > then, insert a cast inst. into another basicblock like this: > > %s.1 = cast int %s.1 to uint > > But, when i do this, the llvm automatically change the same name > into a new one. > In SSA, any assignment

On Thu, Oct 15, 2009 at 7:14 AM, Timo Juhani Lindfors <timo.lindfors at iki.fi> wrote: > Tianwei <tianwei.sheng at gmail.com> writes: >> someone suggested me to use gold-plugin, I know nothing about it yet, I will >> have a try later.  Does anyone have a good solution for this problem? > > Afaik gold does not help here. I tried it and managed to only generate >

Daniel Dunbar wrote: > On Thu, Oct 15, 2009 at 7:14 AM, Timo Juhani Lindfors > <timo.lindfors at iki.fi> wrote: >> Tianwei <tianwei.sheng at gmail.com> writes: >>> someone suggested me to use gold-plugin, I know nothing about it yet, I will >>> have a try later. Does anyone have a good solution for this problem? >> Afaik gold does not help here. I