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[RFA/ARM][Patch 02/02]: ARM epilogues in RTL

From: "Sameera Deshpande" <sameera dot deshpande at arm dot com>
To: <gcc-patches at gcc dot gnu dot org>
Cc: <nickc at redhat dot com>, "Richard Earnshaw" <Richard dot Earnshaw at arm dot com>, <paul at codesourcery dot com>, "Ramana Radhakrishnan" <Ramana dot Radhakrishnan at arm dot com>
Date: Wed, 28 Sep 2011 17:15:50 +0100
Subject: [RFA/ARM][Patch 02/02]: ARM epilogues in RTL

Hi!

This patch generates ARM epilogue in RTL form.

The work defines new functions and reuses most of the static functions and
patterns defined in the previous patch (Thumb2 epilogues in RTL) with minor
changes to handle mode specific details. 
Hence, this patch depends completely on previous patch.

It is tested with arm-eabi with no regression.

ChangeLog:

2011-09-28  Sameera Deshpande  <sameera.deshpande@arm.com>


       * config/arm/arm-protos.h (arm_expand_epilogue): New declarations. 
         (arm_expand_return): Likewise.
         (thumb2_expand_epilogue): Add new boolean argument. 
       * config/arm/arm.c (print_multi_reg): Remove.
         (vfp_output_fldmd): Likewise.

         (arm_output_epilogue): Likewise.
         (output_return_instruction): Update the function. 
         (thumb2_emit_multi_reg_pop): Rename to...
         (arm_emit_multi_reg_pop): ...this 
         (thumb2_emit_vfp_multi_reg_pop): Rename to...
         (arm_emit_vfp_multi_reg_pop): ...this
         (arm_emit_vfp_multi_reg_pop): Add new argument base_reg.
         (arm_expand_return): New function.

         (arm_expand_epilogue): Likewise.
         (thumb2_expand_epilogue): Add new argument is_sibling.
       * config/arm/arm.md (pop_multiple_with_stack_update): Update 
         condition and code for pattern.
         (arm_return): Likewise.
         (pop_multiple_with_stack_update_and_return): Likewise.
         (floating_point_pop_multiple_with_stack_update): Likewise.
         (thumb2_ldr_with_return): Rename to...
         (ldr_with_return): ...this
         (ldr_with_return): Update condition.
         (cond_return): Remove.
         (cond_return_inverted): Likewise.
         (return): Update code.
         (epilogue): Likewise. 
         (sibcall_epilogue): Likewise.
         (epilogue_insns): Update condition and code.


- Thanks and regards,
  Sameera D.

Attachment: arm_rtl_epilogue_complete-28Sept.patch
Description: Binary data

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