[llvm-commits] [llvm-gcc-4.2] r48795 - /llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp

[Evan Cheng]

Thanks. I expect the default inline limit to be dropped back down to  
200 (or perhaps 300) again. gcc -Os inline limit is very small (30 I  
think). We may want to set this to something like 100.

Evan

On Mar 25, 2008, at 2:03 PM, Devang Patel wrote:

> Author: dpatel
> Date: Tue Mar 25 16:03:41 2008
> New Revision: 48795
>
> URL: http://llvm.org/viewvc/llvm-project?rev=48795&view=rev
> Log:
> Reduce inlining threshold when optimizing for size.
>
> Modified:
>    llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp
>
> Modified: llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp?rev=48795&r1=48794&r2=48795&view=diff
>
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> ======================================================================
> --- llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp (original)
> +++ llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp Tue Mar 25 16:03:41 2008
> @@ -128,6 +128,9 @@
>     Args.push_back("--debug-pass=Structure");
>   if (flag_debug_pass_arguments)
>     Args.push_back("--debug-pass=Arguments");
> +  if (optimize_size)
> +    //Reduce inline limit. Default limit is 400.
> +    Args.push_back("--inline-threshold=200");
>
>   // If there are options that should be passed through to the LLVM  
> backend
>   // directly from the command line, do so now.  This is mainly for  
> debugging
> @@ -204,6 +207,7 @@
> void performLateBackendInitialization(void) {
>   // The Ada front-end sets flag_exceptions only after processing  
> the file.
>   ExceptionHandling = flag_exceptions;
> +  OptimizeForSize = optimize_size;
> }
>
> void llvm_lang_dependent_init(const char *Name) {
> @@ -423,6 +427,7 @@
>     }
>
>     // Normal mode, emit a .s file by running the code generator.
> +    // Note, this also adds codegenerator level optimization passes.
>     switch (TheTarget->addPassesToEmitFile(*PM, *AsmOutStream,
>                                             
> TargetMachine::AssemblyFile,
>                                            /*FAST*/optimize == 0)) {
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits