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Roland McGrath <mcgrathr@google.com>

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* dwarf2out.c (const_ok_for_output_1): Detect a TLS UNSPEC using
	SYMBOL_REF_TLS_MODEL rather than DECL_THREAD_LOCAL_P, in case it's
	not a VAR_DECL.  Also don't limit it to UNSPECs with exactly one
	operand.

From-SVN: r188398
This commit is contained in:
Roland McGrath 2012-06-11 20:42:20 +00:00 • committed by Richard Henderson
parent f9f472bd6a
commit a04739cb17
2 changed files with 12 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2012-06-11 Roland McGrath <mcgrathr@google.com>
* dwarf2out.c (const_ok_for_output_1): Detect a TLS UNSPEC using
SYMBOL_REF_TLS_MODEL rather than DECL_THREAD_LOCAL_P, in case it's
not a VAR_DECL. Also don't limit it to UNSPECs with exactly one
operand.
2012-06-11 Oleg Endo <olegendo@gcc.gnu.org>
PR target/53511

10
gcc/dwarf2out.c
View file

@ -10129,12 +10129,12 @@ const_ok_for_output_1 (rtx *rtlp, void *data ATTRIBUTE_UNUSED)
we can't express it in the debug info. */
#ifdef ENABLE_CHECKING
/* Don't complain about TLS UNSPECs, those are just too hard to
delegitimize. */
if (XVECLEN (rtl, 0) != 1
delegitimize. Note this could be a non-decl SYMBOL_REF such as
one in a constant pool entry, so testing SYMBOL_REF_TLS_MODEL
rather than DECL_THREAD_LOCAL_P is not just an optimization. */
if (XVECLEN (rtl, 0) == 0
|| GET_CODE (XVECEXP (rtl, 0, 0)) != SYMBOL_REF
|| SYMBOL_REF_DECL (XVECEXP (rtl, 0, 0)) == NULL
|| TREE_CODE (SYMBOL_REF_DECL (XVECEXP (rtl, 0, 0))) != VAR_DECL
|| !DECL_THREAD_LOCAL_P (SYMBOL_REF_DECL (XVECEXP (rtl, 0, 0))))
|| SYMBOL_REF_TLS_MODEL (XVECEXP (rtl, 0, 0)) == TLS_MODEL_NONE)
inform (current_function_decl
? DECL_SOURCE_LOCATION (current_function_decl)
: UNKNOWN_LOCATION,