some pointer to understanding GCC source code

Posted by user299570 on Stack Overflow See other posts from Stack Overflow or by user299570
Published on 2010-03-23T23:21:38Z Indexed on 2010/03/23 23:33 UTC
Read the original article Hit count: 290

Filed under:

gcc4

|

compiler-optimization

|

multicore

|

rtl

hi, I'm student working on optimizing GCC for multi-core processor. I tried going through the source code, it is difficult to follow through it since I need to add some code to the back end. Can anyone suggest some good resource which explains the code flow through the different phases. Also suggest some development environment for debugging GCC mainly to step through the code. Is it possible on windows?

© Stack Overflow or respective owner

Related posts about gcc4

Why gcc4 warn and how to avoid it

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a function declared as: void event_add_card (EventAddr addr, EventType type, unsigned char card); and union typedef union EventData { float money; /**< money info */ unsigned char card; /**< new card */ } EventData; When i compile following code: EventData… >>> More
How to link static libs (archives) to an empty dynamic lib with gcc4

as seen on Stack Overflow - Search for 'Stack Overflow'
Greetings all! I'm using gcc on linux to create a shared library. The library itself has no code but links to a couple of static libraries(archives) also built using gcc. I need to export the static libs' symbols through my shared library. What happens is that the resulting shared lib is too small… >>> More
gcc 4.5 installation problem under ubuntu

as seen on Stack Overflow - Search for 'Stack Overflow'
I tried to install gcc 4.5 on ubuntu 10.04 but failed. Here is a compile error that I don't know how to solve. Is there anyone successfully install the latest gcc on ubuntu? Following is my steps and the error message, I'd like to know where is the problem.... Step1: download these files: gcc-core-4… >>> More
Undefined reference to cmph functions even after installing cpmh library

as seen on Stack Overflow - Search for 'Stack Overflow'
I am using gcc 4.4.3 on ubuntu. I installed cmph library tools 0.9-1 using command sudo apt-get install libcmph-tools Now, when I tried to compile example program vector_adapter_ex1.c , gcc is able to detect cmph.h library in its include file but is showing multiple errors like vector_adapter_ex1… >>> More
pow doesn't accept the second parameter to be a variable on gcc

as seen on Stack Overflow - Search for 'Stack Overflow'
pow doesn't accept the second parameter to be a variable on gcc The following code works fine on VC++10 // file test.cc #include "stdafx.h" #include <stdio.h> #include <math.h> int main(void) { double x = 10; int y = 20; printf("%f\n", pow(x, y)); return 0; } But… >>> More

Related posts about compiler-optimization

Can compiler optimization introduce bugs ?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, Today I had a discussion with a friend of mine and we debated for a couple of hours about "compiler optimization". I defended the point that sometimes, a compiler optimization might introduce bugs or at least, undesired behavior. My friend totally disagreed, saying that "compiler are built… >>> More
Compiler optimization causing the performance to slow down

as seen on Stack Overflow - Search for 'Stack Overflow'
I have one strange problem. I have following piece of code: template<clss index, class policy> inline int CBase<index,policy>::func(const A& test_in, int* srcPtr ,int* dstPtr) { int width = test_in.width(); int height = test_in.height(); double d = 0.0; //here is the… >>> More
Compiler optimization of reference variables

as seen on Stack Overflow - Search for 'Stack Overflow'
I often use references to simplify the appearance of code: vec3f& vertex = _vertices[index]; // Calculate the vertex position vertex[0] = startx + col * colWidth; vertex[1] = starty + row * rowWidth; vertex[2] = 0.0f; Will compilers recognize and optimize this so it is essentially the following… >>> More
Compiler optimization of repeated accessor calls

as seen on Stack Overflow - Search for 'Stack Overflow'
I've found recently that for some types of financial calculations that the following pattern is much easier to follow and test especially in situations where we may need to get numbers from various stages of the computation. public class nonsensical_calculator { ... double _rate; int… >>> More
Compiler optimization of references

as seen on Stack Overflow - Search for 'Stack Overflow'
I often use references to simplify the appearance of code: vec3f& vertex = _vertices[index]; // Calculate the vertex position vertex[0] = startx + col * colWidth; vertex[1] = starty + row * rowWidth; vertex[2] = 0.0f; Will compilers recognize and optimize this so it is essentially the following… >>> More