From: John David Anglin <danglin@gcc.gnu.org>
Date: Sat, 5 Oct 2024 22:39:41 +0000 (-0400)
Subject: hppa: Don't clobber frame_pointer_rtx in expanders
X-Git-Tag: basepoints/gcc-16~5464
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29f47b0929e00ef9b880e9157f156c78ff924f5b;p=thirdparty%2Fgcc.git

hppa: Don't clobber frame_pointer_rtx in expanders

Noticed testing LRA.  Clobbers cause internal compiler errors.

2024-10-05  John David Anglin  <danglin@gcc.gnu.org>

gcc/ChangeLog:

	* config/pa/pa.md (nonlocal_goto): Don't clobber
	frame_pointer_rtx.
	(builtin_longjmp): Likewise.
---

diff --git a/gcc/config/pa/pa.md b/gcc/config/pa/pa.md
index fae9e430554..2f82b431c0c 100644
--- a/gcc/config/pa/pa.md
+++ b/gcc/config/pa/pa.md
@@ -7411,7 +7411,6 @@
   /* Ensure the frame pointer move is not optimized.  */
   emit_insn (gen_blockage ());
   emit_clobber (hard_frame_pointer_rtx);
-  emit_clobber (frame_pointer_rtx);
   emit_move_insn (hard_frame_pointer_rtx, fp);
 
   emit_use (hard_frame_pointer_rtx);
@@ -9202,7 +9201,6 @@ add,l %2,%3,%3\;bv,n %%r0(%3)"
   /* Ensure the frame pointer move is not optimized.  */
   emit_insn (gen_blockage ());
   emit_clobber (hard_frame_pointer_rtx);
-  emit_clobber (frame_pointer_rtx);
   emit_move_insn (hard_frame_pointer_rtx, fp);
 
   emit_use (hard_frame_pointer_rtx);