system/gcc: Update to 13.3.0

0012-static-pie and 201-ada were forward-ported by my own paws.

Three digit 0xx underscore patches are from Gentoo.  This is also the
source of the insn-split and match-split patches, which significantly
increase performance on build.  They are also the source of the new
configure option --with-matchpd-partitions.  On systems with very many
cores/threads, a number higher than 32 would probably perform even
better, but 32 should give decent perf on 8+ threads, and runs quite
nicely on the 64-thread Talos II I ran the testbuild on.

202 is from Void.  The 300s are originally written by me.

The Ada patch now includes an improvement to use posix_openpt instead
of getpt, which fixes link errors later on.

We also now use STAGE1_CFLAGS and BOOT_CFLAGS to improve build times.
Improvement was clocked from 40m to 32m (-8m, or 20%) on gwyn.

The patch for Go name mangling is needed to build packages that use
reflect2, which includes user/gitlab-runner.

1 files changed, 114 insertions, 0 deletions

diff --git a/system/gcc/076_all_match.pd-don-t-emit-label-if-not-needed.patch b/system/gcc/076_all_match.pd-don-t-emit-label-if-not-needed.patch
new file mode 100644
index 000000000..95da940fe
--- /dev/null
+++ b/system/gcc/076_all_match.pd-don-t-emit-label-if-not-needed.patch
@@ -0,0 +1,114 @@
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109927#c21
+
+From 6178fddd3e0957fbb8bcfc443fef172691b7640b Mon Sep 17 00:00:00 2001
+From: Tamar Christina <tamar.christina@arm.com>
+Date: Fri, 5 May 2023 13:35:17 +0100
+Subject: [PATCH 01/15] match.pd: don't emit label if not needed
+
+This is a small QoL codegen improvement for match.pd to not emit labels when
+they are not needed.  The codegen is nice and there is a small (but consistent)
+improvement in compile time.
+
+gcc/ChangeLog:
+
+	PR bootstrap/84402
+	* genmatch.cc (dt_simplify::gen_1): Only emit labels if used.
+
+(cherry picked from commit 580cda3c2799b1f8323af770e52f1eb0fa204718)
+---
+ gcc/genmatch.cc | 30 ++++++++++++++++++++++--------
+ 1 file changed, 22 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/genmatch.cc b/gcc/genmatch.cc
+index c1023d921fca..9ecd0a462b4f 100644
+--- a/gcc/genmatch.cc
++++ b/gcc/genmatch.cc
+@@ -3354,6 +3354,7 @@ dt_simplify::gen_1 (FILE *f, int indent, bool gimple, operand *result)
+   char local_fail_label[256];
+   snprintf (local_fail_label, 256, "next_after_fail%u", ++fail_label_cnt);
+   fail_label = local_fail_label;
++  bool needs_label = false;
+ 
+   /* Analyze captures and perform early-outs on the incoming arguments
+      that cover cases we cannot handle.  */
+@@ -3368,6 +3369,7 @@ dt_simplify::gen_1 (FILE *f, int indent, bool gimple, operand *result)
+ 		fprintf_indent (f, indent,
+ 				"if (TREE_SIDE_EFFECTS (_p%d)) goto %s;\n",
+ 				i, fail_label);
++		needs_label = true;
+ 		if (verbose >= 1)
+ 		  warning_at (as_a <expr *> (s->match)->ops[i]->location,
+ 			      "forcing toplevel operand to have no "
+@@ -3383,6 +3385,7 @@ dt_simplify::gen_1 (FILE *f, int indent, bool gimple, operand *result)
+ 		fprintf_indent (f, indent,
+ 				"if (TREE_SIDE_EFFECTS (captures[%d])) "
+ 				"goto %s;\n", i, fail_label);
++		needs_label = true;
+ 		if (verbose >= 1)
+ 		  warning_at (cinfo.info[i].c->location,
+ 			      "forcing captured operand to have no "
+@@ -3425,7 +3428,10 @@ dt_simplify::gen_1 (FILE *f, int indent, bool gimple, operand *result)
+     }
+ 
+   if (s->kind == simplify::SIMPLIFY)
+-    fprintf_indent (f, indent, "if (UNLIKELY (!dbg_cnt (match))) goto %s;\n", fail_label);
++    {
++      fprintf_indent (f, indent, "if (UNLIKELY (!dbg_cnt (match))) goto %s;\n", fail_label);
++      needs_label = true;
++    }
+ 
+   fprintf_indent (f, indent, "if (UNLIKELY (dump_file && (dump_flags & TDF_FOLDING))) "
+ 	   "fprintf (dump_file, \"%s ",
+@@ -3498,9 +3504,12 @@ dt_simplify::gen_1 (FILE *f, int indent, bool gimple, operand *result)
+ 			      "res_op->resimplify (%s, valueize);\n",
+ 			      !e->force_leaf ? "lseq" : "NULL");
+ 	      if (e->force_leaf)
+-		fprintf_indent (f, indent,
+-				"if (!maybe_push_res_to_seq (res_op, NULL)) "
+-				"goto %s;\n", fail_label);
++		{
++		  fprintf_indent (f, indent,
++				  "if (!maybe_push_res_to_seq (res_op, NULL)) "
++				  "goto %s;\n", fail_label);
++		  needs_label = true;
++		}
+ 	    }
+ 	}
+       else if (result->type == operand::OP_CAPTURE
+@@ -3556,9 +3565,12 @@ dt_simplify::gen_1 (FILE *f, int indent, bool gimple, operand *result)
+ 		  continue;
+ 		if (cinfo.info[i].result_use_count
+ 		    > cinfo.info[i].match_use_count)
+-		  fprintf_indent (f, indent,
+-				  "if (! tree_invariant_p (captures[%d])) "
+-				  "goto %s;\n", i, fail_label);
++		  {
++		    fprintf_indent (f, indent,
++				    "if (! tree_invariant_p (captures[%d])) "
++				    "goto %s;\n", i, fail_label);
++		    needs_label = true;
++		  }
+ 	      }
+ 	  for (unsigned j = 0; j < e->ops.length (); ++j)
+ 	    {
+@@ -3609,6 +3621,7 @@ dt_simplify::gen_1 (FILE *f, int indent, bool gimple, operand *result)
+ 		    {
+ 		      fprintf_indent (f, indent, "if (!_r)\n");
+ 		      fprintf_indent (f, indent, "  goto %s;\n", fail_label);
++		      needs_label = true;
+ 		    }
+ 		}
+ 	    }
+@@ -3649,7 +3662,8 @@ dt_simplify::gen_1 (FILE *f, int indent, bool gimple, operand *result)
+     }
+   indent -= 2;
+   fprintf_indent (f, indent, "}\n");
+-  fprintf (f, "%s:;\n", fail_label);
++  if (needs_label)
++    fprintf (f, "%s:;\n", fail_label);
+   fail_label = NULL;
+ }
+ 
+-- 
+2.44.0
+