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Hello, Attached is the patch modified according to your suggestions: This patch implements IPA CP (InterProcedural constant propagation). The flag fipa-cp enables the IPA CP optimization. At this stage IPA CP needs to analyze all of the application's files, as cloning of methods is not yet supported. This functionality will be supported shortly. Therefore, for the moment the option -fipa-no-cloning should be specified in order to perform IPA CP. To apply the optimization on an application containing file1.c, file2.c, file3.c, we should use the command: gcc -fipa-cp -fipa-no-cloning -combine file1.c file2.c file3.c Bootstrap and regression tests successfully passed on x86 and powerpc. Comments are welcome. Thanks, Razya Changelog Entry: 2004-08-12 Razya Ladelsky <razya@il.ibm.com> * ipa_prop.c: New File: IPA constant propagation. * ipa_prop.h: New File: Same. * Makefile.in (ipa_prop.c, ipa_prop.h): Add new files. * common.opt (fipa-cp, fipa-no-cloning): New flags for IPA constant propagation. * cgraphunit.c (cgraph_optimize, record_call_1): Support for IPA constant propagation.
Attachment:
ipa.diff
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Attachment:
ipa_prop.h
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Attachment:
ipa_prop.c
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