From: Martin Liska <mliska@suse.cz>
Date: Fri, 25 Sep 2020 14:21:34 +0000 (+0200)
Subject: gcov: fix streaming of HIST_TYPE_IOR histogram type.
X-Git-Tag: releases/gcc-10.3.0~824
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=84dc3879f377ddaecb4054a7bf7671114dfb7228;p=thirdparty%2Fgcc.git

gcov: fix streaming of HIST_TYPE_IOR histogram type.

gcc/ChangeLog:

	PR gcov-profile/64636
	* value-prof.c (stream_out_histogram_value): Allow negative
	values for HIST_TYPE_IOR.

(cherry picked from commit 1921ebcaf6467996aede69e1bbe32400d8a20fe7)
---

diff --git a/gcc/value-prof.c b/gcc/value-prof.c
index 45677be46b1e..9d60b56c43aa 100644
--- a/gcc/value-prof.c
+++ b/gcc/value-prof.c
@@ -332,7 +332,10 @@ stream_out_histogram_value (struct output_block *ob, histogram_value hist)
       /* When user uses an unsigned type with a big value, constant converted
 	 to gcov_type (a signed type) can be negative.  */
       gcov_type value = hist->hvalue.counters[i];
-      if (hist->type == HIST_TYPE_TOPN_VALUES)
+      if (hist->type == HIST_TYPE_TOPN_VALUES
+	  || hist->type == HIST_TYPE_IOR)
+	/* Note that the IOR counter tracks pointer values and these can have
+	   sign bit set.  */
 	;
       else
 	gcc_assert (value >= 0);