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rs6000.c (rs6000_init_dwarf_reg_sizes_extra): Ensure that altivec registers are correctly sized on Darwin. 

gcc:

	* config/rs6000/rs6000.c (rs6000_init_dwarf_reg_sizes_extra): Ensure
	that altivec registers are correctly sized on Darwin.

From-SVN: r203018
This commit is contained in:
Iain Sandoe 2013-09-29 19:34:58 +00:00 committed by Iain Sandoe
parent 23b740dbc7
commit 749278c58d
2 changed files with 26 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-09-29 Iain Sandoe <iain@codesourcery.com>
* config/rs6000/rs6000.c (rs6000_init_dwarf_reg_sizes_extra): Ensure
that altivec registers are correctly sized on Darwin.
2013-09-29 Iain Sandoe <iain@codesourcery.com>
* config/t-darwin (darwin.o, darwin-c.o, darwin-f.o,

21
gcc/config/rs6000/rs6000.c
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@ -29050,6 +29050,27 @@ rs6000_init_dwarf_reg_sizes_extra (tree address)
emit_move_insn (adjust_address (mem, mode, offset), value);
}
}
if (TARGET_MACHO && ! TARGET_ALTIVEC)
{
int i;
enum machine_mode mode = TYPE_MODE (char_type_node);
rtx addr = expand_expr (address, NULL_RTX, VOIDmode, EXPAND_NORMAL);
rtx mem = gen_rtx_MEM (BLKmode, addr);
rtx value = gen_int_mode (16, mode);
/* On Darwin, libgcc may be built to run on both G3 and G4/5.
The unwinder still needs to know the size of Altivec registers. */
for (i = FIRST_ALTIVEC_REGNO; i < LAST_ALTIVEC_REGNO+1; i++)
{
int column = DWARF_REG_TO_UNWIND_COLUMN (i);
HOST_WIDE_INT offset
= DWARF_FRAME_REGNUM (column) * GET_MODE_SIZE (mode);
emit_move_insn (adjust_address (mem, mode, offset), value);
}
}
}
/* Map internal gcc register numbers to DWARF2 register numbers. */