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Creation of SYMBOL_REFs by dwarf2out.c
- From: Mark Mitchell <mark at codesourcery dot com>
- To: gcc at gcc dot gnu dot org, rth at redhat dot com, jason at redhat dot com
- Date: Wed, 21 Jul 2004 11:34:51 -0700
- Subject: Creation of SYMBOL_REFs by dwarf2out.c
- Organization: CodeSourcery, LLC
In output_call_frame_info, we create new SYMBOL_REFs for functions, via:
if (TARGET_USES_WEAK_UNWIND_INFO
&& DECL_ONE_ONLY (fde->decl))
dw2_asm_output_encoded_addr_rtx (fde_encoding,
gen_rtx_SYMBOL_REF (Pmode, IDENTIFIER_POINTER
=> (DECL_ASSEMBLER_NAME
(fde->de\cl))),
"FDE initial location");
Is this necessary?
It violates the claim in the internals manual that there is only one
SYMBOL_REF per symbol, which is unfortunate.
Why can't we just use XEXP (DECL_RTL (fde->decl), 0) ?
Thanks,
--
Mark Mitchell
CodeSourcery, LLC
(916) 791-8304
mark@codesourcery.com