[cfe-users] binary operator
Hi, When iterating through the AST I encounter BinaryOperator-s, part of an IfStmt. My question now is: how can I find which operator it is? E.g. ==, >=, etc. I'm using libclang. Folkert van Heusden -- -- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com ___ cfe-users mailing list cfe-users@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
[cfe-users] Help Needed: How to get source line number from .ll file LLVM
Hi,
I am working with LLVM 3.4 and want to obtain the line number information
of source file from IR. The IR is generated from simple c code with Clang. *I
want to obtain the line number in source c file from the line in IR body.*
I tried this -
1. For Instruction BI, unsigned Line = Line =
BI->getDebugLoc().getLine();
2. For Loop L, std::cout << L->getStartLoc().getLine();
But, the result stored/printed is always 0. I don't know how to obtain line
number in the source from LLVM IR.
My Source C file is -
#include
int main(){
int i;
int inbuf[100];
int outbuf[100];
for(i = 0; i < 100; ++i)
inbuf[i] ^= outbuf[i];
inbuf[1] += 402;
inbuf[6] += 107;
inbuf[97] += 231;
for(i = 0; i < 100; ++i)
{
inbuf[i] += outbuf[i];
}
inbuf[47] += 312;
//print-statements
for (i=0;i<100;i++) {
printf("inbuf[%d] = %d\n",i,inbuf[i]); }return 0;
}
*Command Used-* ~/llvm/build/Release+Asserts/bin/clang -O3
-fno-unroll-loops -fno-vectorize -fno-slp-vectorize -S -emit-llvm sample.c
-o sample.ll
I have working pass which can detect and analyze the loops and
instructions. I am using it inside function - runOnLoop(Loop *L,
LPPassManager &LPM)
I have also tried with -O0 and -fstandalone-debug option in the compile
line. But, it is still printing 0.
The following is also not working out.
if (MDNode *N = I->getMetadata("dbg")) { // Here I is an LLVM instruction
DILocation Loc(N); // DILocation is in DebugInfo.h
unsigned Line = Loc.getLineNumber();
}
It would be great if anybody can kindly help me for the same. Thanks!
Best,
Shail
ᐧ
___
cfe-users mailing list
cfe-users@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
Re: [cfe-users] Help Needed: How to get source line number from .ll file LLVM
you would need to build with debug info (-g) or similar (there are a few
other options that enable the same source location info) to produce the
debuglocs that will tell you about that
On Mon, Jul 11, 2016 at 9:40 PM, Shail Dave via cfe-users <
cfe-users@lists.llvm.org> wrote:
> Hi,
>
> I am working with LLVM 3.4 and want to obtain the line number information
> of source file from IR. The IR is generated from simple c code with Clang. *I
> want to obtain the line number in source c file from the line in IR body.*
>
> I tried this -
>
>1. For Instruction BI, unsigned Line = Line =
>BI->getDebugLoc().getLine();
>2. For Loop L, std::cout << L->getStartLoc().getLine();
>
> But, the result stored/printed is always 0. I don't know how to obtain
> line number in the source from LLVM IR.
>
> My Source C file is -
> #include
>
> int main(){
>
> int i;
>
> int inbuf[100];
> int outbuf[100];
>
> for(i = 0; i < 100; ++i)
> inbuf[i] ^= outbuf[i];
>
> inbuf[1] += 402;
> inbuf[6] += 107;
> inbuf[97] += 231;
>
> for(i = 0; i < 100; ++i)
> {
> inbuf[i] += outbuf[i];
> }
>
> inbuf[47] += 312;
>
> //print-statements
> for (i=0;i<100;i++) {
> printf("inbuf[%d] = %d\n",i,inbuf[i]); }return 0;
> }
>
>
> *Command Used-* ~/llvm/build/Release+Asserts/bin/clang -O3
> -fno-unroll-loops -fno-vectorize -fno-slp-vectorize -S -emit-llvm sample.c
> -o sample.ll
>
> I have working pass which can detect and analyze the loops and
> instructions. I am using it inside function - runOnLoop(Loop *L,
> LPPassManager &LPM)
>
> I have also tried with -O0 and -fstandalone-debug option in the compile
> line. But, it is still printing 0.
>
> The following is also not working out.
>
> if (MDNode *N = I->getMetadata("dbg")) { // Here I is an LLVM instruction
>DILocation Loc(N); // DILocation is in DebugInfo.h
>unsigned Line = Loc.getLineNumber();
> }
>
> It would be great if anybody can kindly help me for the same. Thanks!
>
> Best,
> Shail
> ᐧ
>
> ___
> cfe-users mailing list
> cfe-users@lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
>
>
___
cfe-users mailing list
cfe-users@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
Re: [cfe-users] binary operator
Hi Folkert, On Tue, Jul 12, 2016 at 1:46 PM, folkert via cfe-users wrote: > Hi, > > When iterating through the AST I encounter BinaryOperator-s, part of an > IfStmt. > My question now is: how can I find which operator it is? E.g. ==, >=, > etc. > I'm using libclang. > You can call BinaryOperator::getOpcode, which will return an Opcode, which is a typedef of the BinaryOperatorKind enum. Csaba -- GCS a+ e++ d- C++ ULS$ L+$ !E- W++ P+++$ w++$ tv+ b++ DI D++ 5++ The Tao of math: The numbers you can count are not the real numbers. Life is complex, with real and imaginary parts. "Ok, it boots. Which means it must be bug-free and perfect. " -- Linus Torvalds "People disagree with me. I just ignore them." -- Linus Torvalds ___ cfe-users mailing list cfe-users@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
Re: [cfe-users] binary operator
Hi, > > When iterating through the AST I encounter BinaryOperator-s, part of an > > IfStmt. > > My question now is: how can I find which operator it is? E.g. ==, >=, > > etc. > > I'm using libclang. > > You can call BinaryOperator::getOpcode, which will return an Opcode, > which is a typedef of the BinaryOperatorKind enum. That is part of the C++ api right? I'm using the one with the clang_ prefixes and I could not find any getOpcode call in there (I checked Index.h). Folkert van Heusden -- -- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com ___ cfe-users mailing list cfe-users@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
