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From: SourceForge.net <noreply@so...> - 2005-01-30 01:36:31
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Bugs item #1112123, was opened at 2005-01-30 05:29 Message generated for change (Comment added) made by dannysmith You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=102435&aid=1112123&group_id=2435 Category: gcc Group: None Status: Open Resolution: None Priority: 5 Submitted By: Alexander J. Vincent (jslab) Assigned to: Danny Smith (dannysmith) Summary: -Os: unable to find a register to spill in class 'CREG' Initial Comment: D:\builds\mozilla\xpcom\obsolete>g++ -Os -c nsFileSpec.i d:/mozilla/xpcom/obsolete/nsFileSpec.cpp: In member function `void nsPersistentF ileDescriptor::GetData(nsAFlatCString&) const': d:/mozilla/xpcom/obsolete/nsFileSpec.cpp:1272: error: unable to find a register to spill in class `CREG' d:/mozilla/xpcom/obsolete/nsFileSpec.cpp:1272: error: this is the insn: (call_insn/j:HI 68 67 69 2 (call (mem:QI (reg/f:SI 3 bx [68]) [0 S1 A8]) (const_int 0 [0x0])) 362 {*sibcall_1} (insn_list 64 (insn_list 65 (insn_ list 66 (insn_list 67 (nil))))) (expr_list:REG_DEAD (reg:SI 2 cx [ <anonymous> ]) (expr_list:REG_DEAD (reg:SI 1 dx [ <anonymous> ]) (expr_list:REG_DEAD (reg:SI 0 ax [ outData ]) (expr_list:REG_DEAD (reg/f:SI 3 bx [68]) (nil))))) (expr_list (use (reg:SI 0 ax [ outData ])) (expr_list (use (reg:SI 1 dx [ <anonymous> ])) (expr_list (use (reg:SI 2 cx [ <anonymous> ])) (nil))))) d:/mozilla/xpcom/obsolete/nsFileSpec.cpp:1272: confused by earlier errors, baili ng out The generated .i file is at: http://silver.warwickcompsoc.co.uk/temp/nsfilespec.i FYI: I was attempting a MinGW build of Mozilla from source code dated 28 Jan 2005 20:00 PST, with ac_add_options --disable-debug ac_add_options --enable-optimize=-Os ---------------------------------------------------------------------- >Comment By: Danny Smith (dannysmith) Date: 2005-01-30 14:36 Message: Logged In: YES user_id=11494 Confirmed with 3.4.4 amd 4.0.0. The problem is with this: __attribute__ ((regparm (3), stdcall)) If I replace the above with either: __attribute__((fastcall) or __attribute__((stdcall)) or __attribute__((regparm(2))) compilation is successful. However, if I replace with __attribute__((regparm(3))) I get the same compiler error message as you report, so its not just the combination of stdcall and regparm. IMO, the combo __attribute__ ((regparm (n), stdcall)) should cause a warning or error to be emitted, since I really think they are not compatible. When using these attributes with virtual methods there is also this unresolved bug: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14688 Danny ---------------------------------------------------------------------- Comment By: Alexander J. Vincent (jslab) Date: 2005-01-30 05:30 Message: Logged In: YES user_id=134163 WARNING: The generated .i file is 1.6MB in size. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=102435&aid=1112123&group_id=2435 |