gcc: On rs6000 update sp_offset depending only on size.
This fixes a nasty bug introduced in r258651. Reported and tested by: Justin Hibbits Obtained from: gcc pre-4.3 (rev. 125116; GPLv2) MFC after: 2 weeks
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=258943
@ -51,12 +51,20 @@
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* doc/extend.texi: Document the 0b-prefixed binary integer
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constant extension.
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2007-05-31 Eric Christopher <echristo@apple.com>
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2007-05-31 Eric Christopher <echristo@apple.com> (r125246)
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* expr.c (convert_move): Assert that we don't have a BLKmode
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operand.
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(store_expr): Handle BLKmode moves by calling emit_block_move.
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2007-05-27 Eric Christopher <echristo@apple.com> (r125116)
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* config/rs6000/rs6000.c (rs6000_emit_prologue): Update
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sp_offset depending on stack size. Save r12 depending
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on registers we're saving later.
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(rs6000_emit_epilogue): Update sp_offset depending only
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on stack size.
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2007-05-24 Richard Sandiford <rsandifo@nildram.co.uk> (r125037)
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* postreload-gcse.c (reg_changed_after_insn_p): New function.
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@ -14704,8 +14704,17 @@ rs6000_emit_prologue (void)
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if (!WORLD_SAVE_P (info) && info->push_p
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&& !(DEFAULT_ABI == ABI_V4 || current_function_calls_eh_return))
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{
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rs6000_emit_allocate_stack (info->total_size, FALSE);
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if (info->total_size < 32767)
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sp_offset = info->total_size;
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else
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frame_reg_rtx = frame_ptr_rtx;
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rs6000_emit_allocate_stack (info->total_size,
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(frame_reg_rtx != sp_reg_rtx
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&& ((info->altivec_size != 0)
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|| (info->vrsave_mask != 0)
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)));
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if (frame_reg_rtx != sp_reg_rtx)
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rs6000_emit_stack_tie ();
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}
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/* Set frame pointer, if needed. */
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@ -15046,8 +15055,7 @@ rs6000_emit_epilogue (int sibcall)
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}
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/* Set sp_offset based on the stack push from the prologue. */
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if ((DEFAULT_ABI == ABI_V4 || current_function_calls_eh_return)
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&& info->total_size < 32767)
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if (info->total_size < 32767)
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sp_offset = info->total_size;
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/* Restore AltiVec registers if needed. */
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