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https://github.com/cc65/cc65.git
synced 2025-01-14 16:33:00 +00:00
Added an option to output the assembly after each transformation step of the
optimizer. git-svn-id: svn://svn.cc65.org/cc65/trunk@5781 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz
parent
44f965c462
commit
49e5d19950
@ -35,6 +35,7 @@
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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/* common */
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#include "abend.h"
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@ -42,6 +43,7 @@
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#include "cpu.h"
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#include "debugflag.h"
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#include "print.h"
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#include "strbuf.h"
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#include "xmalloc.h"
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#include "xsprintf.h"
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@ -49,6 +51,7 @@
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#include "asmlabel.h"
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#include "codeent.h"
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#include "codeinfo.h"
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#include "codeopt.h"
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#include "coptadd.h"
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#include "coptc02.h"
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#include "coptcmp.h"
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@ -65,7 +68,7 @@
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#include "copttest.h"
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#include "error.h"
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#include "global.h"
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#include "codeopt.h"
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#include "output.h"
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@ -1019,6 +1022,48 @@ static void WriteOptStats (const char* Name)
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static void OpenDebugFile (const CodeSeg* S)
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/* Open the debug file for the given segment if the flag is on */
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{
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if (DebugOptOutput) {
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StrBuf Name = AUTO_STRBUF_INITIALIZER;
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if (S->Func) {
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SB_CopyStr (&Name, S->Func->Name);
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} else {
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SB_CopyStr (&Name, "global");
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}
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SB_AppendStr (&Name, ".opt");
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SB_Terminate (&Name);
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OpenDebugOutputFile (SB_GetConstBuf (&Name));
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SB_Done (&Name);
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}
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}
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static void WriteDebugOutput (CodeSeg* S, const char* Step)
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/* Write a separator line into the debug file if the flag is on */
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{
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if (DebugOptOutput) {
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/* Output a separator */
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WriteOutput ("=========================================================================\n");
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/* Output a header line */
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if (Step == 0) {
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/* Initial output */
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WriteOutput ("Initial code for function `%s':\n",
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S->Func? S->Func->Name : "<global>");
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} else {
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WriteOutput ("Code after applying `%s':\n", Step);
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}
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/* Output the code segment */
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CS_Output (S);
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}
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}
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static unsigned RunOptFunc (CodeSeg* S, OptFunc* F, unsigned Max)
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/* Run one optimizer function Max times or until there are no more changes */
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{
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@ -1037,9 +1082,6 @@ static unsigned RunOptFunc (CodeSeg* S, OptFunc* F, unsigned Max)
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/* Run the function */
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C = F->Func (S);
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if (Debug && C > 0) {
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printf ("Applied %s: %u changes\n", F->Name, C);
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}
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Changes += C;
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/* Do statistics */
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@ -1048,8 +1090,12 @@ static unsigned RunOptFunc (CodeSeg* S, OptFunc* F, unsigned Max)
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F->TotalChanges += C;
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F->LastChanges += C;
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/* If we had changes, regenerate register info */
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/* If we had changes, output stuff and regenerate register info */
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if (C) {
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if (Debug) {
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printf ("Applied %s: %u changes\n", F->Name, C);
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}
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WriteDebugOutput (S, F->Name);
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CS_GenRegInfo (S);
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}
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@ -1352,6 +1398,10 @@ void RunOpt (CodeSeg* S)
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Print (stdout, 1, "Running optimizer for global code segment\n");
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}
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/* If requested, open an output file */
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OpenDebugFile (S);
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WriteDebugOutput (S, 0);
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/* Generate register info for all instructions */
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CS_GenRegInfo (S);
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@ -1367,9 +1417,14 @@ void RunOpt (CodeSeg* S)
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/* Free register info */
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CS_FreeRegInfo (S);
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/* Close output file if necessary */
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if (DebugOptOutput) {
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CloseOutputFile ();
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}
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/* Write statistics */
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if (StatFileName) {
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WriteOptStats (StatFileName);
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WriteOptStats (StatFileName);
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}
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}
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@ -6,7 +6,7 @@
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/* */
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/* */
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/* */
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/* (C) 1998-2011, Ullrich von Bassewitz */
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/* (C) 1998-2012, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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@ -46,6 +46,7 @@
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unsigned char AddSource = 0; /* Add source lines as comments */
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unsigned char DebugInfo = 0; /* Add debug info to the obj */
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unsigned char PreprocessOnly = 0; /* Just preprocess the input */
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unsigned char DebugOptOutput = 0; /* Output debug stuff */
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unsigned RegisterSpace = 6; /* Space available for register vars */
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/* Stackable options */
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@ -61,7 +62,7 @@ IntStack CheckStack = INTSTACK(0); /* Generate stack overflow checks */
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IntStack Optimize = INTSTACK(0); /* Optimize flag */
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IntStack CodeSizeFactor = INTSTACK(100);/* Size factor for generated code */
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IntStack DataAlignment = INTSTACK(1); /* Alignment for data */
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/* File names */
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StrBuf DepName = STATIC_STRBUF_INITIALIZER; /* Name of dependencies file */
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StrBuf FullDepName = STATIC_STRBUF_INITIALIZER; /* Name of full dependencies file */
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@ -6,7 +6,7 @@
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/* */
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/* */
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/* */
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/* (C) 1998-2011, Ullrich von Bassewitz */
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/* (C) 1998-2012, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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@ -54,6 +54,7 @@
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extern unsigned char AddSource; /* Add source lines as comments */
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extern unsigned char DebugInfo; /* Add debug info to the obj */
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extern unsigned char PreprocessOnly; /* Just preprocess the input */
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extern unsigned char DebugOptOutput; /* Output debug stuff */
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extern unsigned RegisterSpace; /* Space available for register vars */
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/* Stackable options */
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@ -6,7 +6,7 @@
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/* */
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/* */
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/* */
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/* (C) 2000-2011, Ullrich von Bassewitz */
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/* (C) 2000-2012, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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@ -505,6 +505,15 @@ static void OptDebugOpt (const char* Opt attribute ((unused)), const char* Arg)
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static void OptDebugOptOutput (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Output optimization steps */
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{
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DebugOptOutput = 1;
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}
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static void OptDepTarget (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --dep-target option */
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{
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@ -782,6 +791,7 @@ int main (int argc, char* argv[])
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{ "--debug", 0, OptDebug },
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{ "--debug-info", 0, OptDebugInfo },
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{ "--debug-opt", 1, OptDebugOpt },
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{ "--debug-opt-output", 0, OptDebugOptOutput },
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{ "--dep-target", 1, OptDepTarget },
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{ "--disable-opt", 1, OptDisableOpt },
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{ "--enable-opt", 1, OptEnableOpt },
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@ -6,10 +6,10 @@
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/* */
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/* */
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/* */
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/* (C) 2009, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* (C) 2009-2012, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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@ -109,6 +109,24 @@ void OpenOutputFile ()
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void OpenDebugOutputFile (const char* Name)
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/* Open an output file for debugging purposes. Will call Fatal() in case of
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* failures.
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*/
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{
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/* Output file must not be open and we must have a name*/
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PRECONDITION (OutputFile == 0);
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/* Open the file */
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OutputFile = fopen (Name, "w");
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if (OutputFile == 0) {
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Fatal ("Cannot open debug output file `%s': %s", Name, strerror (errno));
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}
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Print (stdout, 1, "Opened debug output file `%s'\n", Name);
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}
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void CloseOutputFile ()
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/* Close the output file. Will call Fatal() in case of failures. */
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{
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@ -121,6 +139,8 @@ void CloseOutputFile ()
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Fatal ("Cannot write to output file (disk full?)");
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}
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Print (stdout, 1, "Closed output file `%s'\n", OutputFilename);
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OutputFile = 0;
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}
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@ -6,10 +6,10 @@
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/* */
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/* */
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/* */
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/* (C) 2009, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* (C) 2009-2012, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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@ -46,7 +46,7 @@
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/*****************************************************************************/
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/* Data */
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/* Data */
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/*****************************************************************************/
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@ -60,7 +60,7 @@ extern FILE* OutputFile;
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/*****************************************************************************/
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/* Code */
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/* Code */
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/*****************************************************************************/
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@ -76,6 +76,11 @@ void MakeDefaultOutputName (const char* InputFilename);
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void OpenOutputFile ();
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/* Open the output file. Will call Fatal() in case of failures. */
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void OpenDebugOutputFile (const char* Name);
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/* Open an output file for debugging purposes. Will call Fatal() in case of
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* failures.
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*/
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void CloseOutputFile ();
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/* Close the output file. Will call Fatal() in case of failures. */
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