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system.h: Poison ASM_SIMPLIFY_DWARF_ADDR.

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* system.h: Poison ASM_SIMPLIFY_DWARF_ADDR.

        * varasm.c (lookup_constant_def): New function.
        * rtl.h (lookup_constant_def): Declare it.
        * dwarf2out.c (loc_descriptor_from_tree): Use it.
        Use targetm.delegitimize_address, not ASM_SIMPLIFY_DWARF_ADDR.

From-SVN: r70072
This commit is contained in:
Richard Henderson 2003-08-01 14:51:13 -07:00 committed by Richard Henderson
parent c197e30661
commit 75c2098081
5 changed files with 38 additions and 10 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2003-08-01 Richard Henderson <rth@redhat.com>
* system.h: Poison ASM_SIMPLIFY_DWARF_ADDR.
* varasm.c (lookup_constant_def): New function.
* rtl.h (lookup_constant_def): Declare it.
* dwarf2out.c (loc_descriptor_from_tree): Use it.
Use targetm.delegitimize_address, not ASM_SIMPLIFY_DWARF_ADDR.
2003-08-01 Zack Weinberg <zack@codesourcery.com>
* c-decl.c (gettags, pushdecl_function_level): Delete.

20
gcc/dwarf2out.c
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@ -8560,17 +8560,19 @@ loc_descriptor_from_tree (tree loc, int addressp)
case CONSTRUCTOR:
{
/* Get an RTL for this, which will may have the effect of outputting
it. This may violates the principle of not having -g affect
the generated code, but it's in the data segment and it's hard
to see a case where it won't already have been output. */
rtx rtl = output_constant_def (loc, 0);
/* Get an RTL for this, if something has been emitted. */
rtx rtl = lookup_constant_def (loc);
enum machine_mode mode;
if (GET_CODE (rtl) != MEM)
return 0;
mode = GET_MODE (rtl);
rtl = XEXP (rtl, 0);
rtl = (*targetm.delegitimize_address) (rtl);
#ifdef ASM_SIMPLIFY_DWARF_ADDR
rtl = ASM_SIMPLIFY_DWARF_ADDR (rtl);
#endif
indirect_p = 1;
ret = mem_loc_descriptor (XEXP (rtl, 0), GET_MODE (rtl));
ret = mem_loc_descriptor (rtl, mode);
break;
}

1
gcc/rtl.h
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@ -1911,6 +1911,7 @@ extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx);
#define INVALID_REGNUM (~(unsigned int) 0)
extern rtx output_constant_def (tree, int);
extern rtx lookup_constant_def (tree);
/* Called from integrate.c when a deferred constant is inlined. */
extern void notice_rtl_inlining_of_deferred_constant (void);

3
gcc/system.h
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@ -586,7 +586,8 @@ typedef char _Bool;
WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END
ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
ASM_SIMPLIFY_DWARF_ADDR
/* Other obsolete target macros, or macros that used to be in target
headers and were not used, and may be obsolete or may never have

15
gcc/varasm.c
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@ -2596,6 +2596,21 @@ notice_rtl_inlining_of_deferred_constant (void)
{
n_deferred_constants++;
}
/* Look up EXP in the table of constant descriptors. Return the rtl
if it has been emitted, else null. */
rtx
lookup_constant_def (tree exp)
{
struct constant_descriptor_tree *desc;
struct constant_descriptor_tree key;
key.value = exp;
desc = htab_find (const_desc_htab, &key);
return (desc ? desc->rtl : NULL_RTX);
}
/* Used in the hash tables to avoid outputting the same constant
twice. Unlike 'struct constant_descriptor_tree', RTX constants