procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

re PR target/45807 (Lying eh_frame r2 save info causes crashes with static libgcc_eh and libstdc++)

Browse source 
PR target/45807
	* config/rs6000/rs6000.c (rs6000_emit_prologue): Properly sign
	extend toc_restore_insn.

From-SVN: r164825
This commit is contained in:
Alan Modra 2010-10-01 12:53:46 +09:30 • committed by Alan Modra
parent c98b08ff4b
commit d7e7073f49
2 changed files with 8 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2010-10-01 Alan Modra <amodra@gmail.com>
PR target/45807
* config/rs6000/rs6000.c (rs6000_emit_prologue): Properly sign
extend toc_restore_insn.
2010-09-30 Richard Guenther <rguenther@suse.de>
PR tree-optimization/43959

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

@ -20234,8 +20234,8 @@ rs6000_emit_prologue (void)
be updated if we arrived at this function via a plt call or
toc adjusting stub. */
emit_move_insn (tmp_reg_si, gen_rtx_MEM (SImode, tmp_reg));
toc_restore_insn = ((TARGET_32BIT ? 0x80410014 : 0xE8410028)
^ 0x80000000) - 0x80000000;
toc_restore_insn = TARGET_32BIT ? 0x80410014 : 0xE8410028;
toc_restore_insn = (toc_restore_insn ^ 0x80000000) - 0x80000000;
emit_insn (gen_xorsi3 (tmp_reg_si, tmp_reg_si,
GEN_INT (toc_restore_insn & ~0xffff)));
compare_result = gen_rtx_REG (CCUNSmode, CR0_REGNO);