On Mon, Sep 09, 2013 at 06:37:03PM +0930, Alan Modra wrote:
> gcc/
> * config/rs6000/predicates.md (add_cint_operand): New.
> (reg_or_add_cint_operand): Use add_cint_operand.
> * config/rs6000/rs6000.md (largetoc_high_plus): Restrict offset
> using add_cint_operand.
> (largetoc_high_plus_aix, small_toc_ref): Likewise.
> gcc/testsuite/
> * gcc.target/powerpc/medium_offset.c: New.
I missed seeing one testcase regression caused by this patch. :-(
gcc.c-torture/compile/pr41634.c at -O3 gets an "insn does not satisfy
its constraints". Fixed with the following. OK to apply?
* config/rs6000/rs6000.c (toc_relative_expr_p): Use add_cint_operand.
Index: gcc/config/rs6000/rs6000.c
===================================================================
--- gcc/config/rs6000/rs6000.c (revision 202428)
+++ gcc/config/rs6000/rs6000.c (working copy)
@@ -5926,7 +5906,7 @@ toc_relative_expr_p (const_rtx op, bool strict)
tocrel_base = op;
tocrel_offset = const0_rtx;
- if (GET_CODE (op) == PLUS && CONST_INT_P (XEXP (op, 1)))
+ if (GET_CODE (op) == PLUS && add_cint_operand (XEXP (op, 1), GET_MODE (op)))
{
tocrel_base = XEXP (op, 0);
tocrel_offset = XEXP (op, 1);
--
Alan Modra
Australia Development Lab, IBM
