diff mbox

[06/12] ia64: Issue REG_CFA_REGISTER for ar.pfs at alloc insn.

Message ID 1309384152-25027-7-git-send-email-rth@redhat.com
State New
Headers show

Commit Message

Richard Henderson June 29, 2011, 9:49 p.m. UTC 
---
 gcc/config/ia64/ia64.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c
index c06903d..0a6f2e6 100644
--- a/gcc/config/ia64/ia64.c
+++ b/gcc/config/ia64/ia64.c
@@ -3249,7 +3249,14 @@  ia64_expand_prologue (void)
 				   GEN_INT (current_frame_info.n_local_regs),
 				   GEN_INT (current_frame_info.n_output_regs),
 				   GEN_INT (current_frame_info.n_rotate_regs)));
-      RTX_FRAME_RELATED_P (insn) = (current_frame_info.r[reg_save_ar_pfs] != 0);
+      if (current_frame_info.r[reg_save_ar_pfs])
+	{
+	  RTX_FRAME_RELATED_P (insn) = 1;
+	  add_reg_note (insn, REG_CFA_REGISTER,
+			gen_rtx_SET (VOIDmode,
+				     ar_pfs_save_reg,
+				     gen_rtx_REG (DImode, AR_PFS_REGNUM)));
+	}
     }
 
   /* Set up frame pointer, stack pointer, and spill iterators.  */