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re PR target/36955 (TLS LIBCALL change breaks libstdc++ built with older binutils) 

PR target/36955
	* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Add
	a use of pic_offset_table_rtx for -msecure-plt __tls_get_addr calls.

From-SVN: r138291
This commit is contained in:
Alan Modra 2008-07-30 02:43:05 +00:00 committed by Alan Modra
parent 559d6599ea
commit d161cb2dde
2 changed files with 10 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2008-07-30 Alan Modra <amodra@bigpond.net.au>
PR target/36955
* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Add
a use of pic_offset_table_rtx for -msecure-plt __tls_get_addr calls.
2008-07-29 Jan Hubicka <jh@suse.cz> 2008-07-29 Jan Hubicka <jh@suse.cz>
* c-decl.c (merge_decls): Do not handle DECL_INLINE. * c-decl.c (merge_decls): Do not handle DECL_INLINE.

4
gcc/config/rs6000/rs6000.c
View File

@ -3948,6 +3948,8 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
insn = emit_call_insn (insn); insn = emit_call_insn (insn);
RTL_CONST_CALL_P (insn) = 1; RTL_CONST_CALL_P (insn) = 1;
use_reg (&CALL_INSN_FUNCTION_USAGE (insn), r3); use_reg (&CALL_INSN_FUNCTION_USAGE (insn), r3);
if (DEFAULT_ABI == ABI_V4 && TARGET_SECURE_PLT && flag_pic)
use_reg (&CALL_INSN_FUNCTION_USAGE (insn), pic_offset_table_rtx);
insn = get_insns (); insn = get_insns ();
end_sequence (); end_sequence ();
emit_libcall_block (insn, dest, r3, addr); emit_libcall_block (insn, dest, r3, addr);
@ -3970,6 +3972,8 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
insn = emit_call_insn (insn); insn = emit_call_insn (insn);
RTL_CONST_CALL_P (insn) = 1; RTL_CONST_CALL_P (insn) = 1;
use_reg (&CALL_INSN_FUNCTION_USAGE (insn), r3); use_reg (&CALL_INSN_FUNCTION_USAGE (insn), r3);
if (DEFAULT_ABI == ABI_V4 && TARGET_SECURE_PLT && flag_pic)
use_reg (&CALL_INSN_FUNCTION_USAGE (insn), pic_offset_table_rtx);
insn = get_insns (); insn = get_insns ();
end_sequence (); end_sequence ();
tmp1 = gen_reg_rtx (Pmode); tmp1 = gen_reg_rtx (Pmode);