Article View: gnu.gcc.bug
Article #1860Re: Does someone have generic debugging tips for GCC
From: John Bunda
Date: Fri, 21 Oct 1988 04:56
Date: Fri, 21 Oct 1988 04:56
19 lines
1391 bytes
1391 bytes
This question has come up several times now. I had emailed some replies to these, thinking it wasn't general interest, but it seems... The function debug_rtx() takes an rtx argument. If you are using a reasonable debugger (viz gdb), you should be able to muck around and find some rtx that seems responsible for a particular problem (hint - the name insn comes up a lot!). In gdb you can then type "print debug_rtx(insn)" for example to see a nice rtl display of the object. If you don't have a decent debugger, replace the abort() that is forcing the dump with an appropriate call to debug_rtx(). (in fact, i might be so bold as to suggest a #ifdef DEBUGGING or some such to have this option there all the time...) -John -- ................................... John Bunda UT CS Dept. bunda@cs.utexas.edu Austin, Texas
Technical Details
Message-ID:
<3657@cs.utexas.edu>Path:
arc1-ca.pugleaf.net!utzoo!telly!ddsw1!lll-winken!killer!mit-eddie!bbn!rochester!cornell!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!bundaReferences:
<8810160734.AA04408@iwarpo3.intel.com> <8810191949.AA04017@hobbes.ai.mit.edu>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!telly!ddsw1!lll-winken!killer!mit-eddie!bbn!rochester!cornell!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!bunda From: bunda@cs.utexas.edu (John Bunda) Newsgroups: gnu.gcc.bug Subject: Re: Does someone have generic debugging tips for GCC Summary: how about debug_rtx() ? Message-ID: <3657@cs.utexas.edu> Date: 21 Oct 88 04:56:53 GMT References: <8810160734.AA04408@iwarpo3.intel.com> <8810191949.AA04017@hobbes.ai.mit.edu> Distribution: gnu Organization: U. Texas CS Dept., Austin, Texas Lines: 17