From: Martin Liska <mliska@suse.cz>
Date: Mon, 30 Jan 2017 15:35:57 +0000 (+0100)
Subject: Fix profile corruption with -O1 (PR gcov-profile/79259)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=37731134c71cc81ed8245d583e1fbbfab879fa5f;p=gcc.git

Fix profile corruption with -O1 (PR gcov-profile/79259)

2017-01-30  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/79259
	* opts.c (common_handle_option): Enable flag_ipa_bit_cp w/
	-fprofile-generate.
2017-01-30  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/79259
	* g++.dg/tree-prof/pr79259.C: New test.

From-SVN: r245031
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 620c4b09eba..206b8a59c41 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-01-30  Martin Liska  <mliska@suse.cz>
+
+	PR gcov-profile/79259
+	* opts.c (common_handle_option): Enable flag_ipa_bit_cp w/
+	-fprofile-generate.
+
 2017-01-30  Martin Liska  <mliska@suse.cz>
 
 	PR bootstrap/78985
diff --git a/gcc/opts.c b/gcc/opts.c
index 5f573a16ff1..b38e9b4f3a7 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -2150,6 +2150,8 @@ common_handle_option (struct gcc_options *opts,
 	opts->x_flag_profile_values = value;
       if (!opts_set->x_flag_inline_functions)
 	opts->x_flag_inline_functions = value;
+      if (!opts_set->x_flag_ipa_bit_cp)
+	opts->x_flag_ipa_bit_cp = value;
       /* FIXME: Instrumentation we insert makes ipa-reference bitmaps
 	 quadratic.  Disable the pass until better memory representation
 	 is done.  */
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 33f02489e4e..cbab69fd1b1 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2017-01-30  Martin Liska  <mliska@suse.cz>
+
+	PR gcov-profile/79259
+	* g++.dg/tree-prof/pr79259.C: New test.
+
 2017-01-30  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/79276
diff --git a/gcc/testsuite/g++.dg/tree-prof/pr79259.C b/gcc/testsuite/g++.dg/tree-prof/pr79259.C
new file mode 100644
index 00000000000..a55172b62d2
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tree-prof/pr79259.C
@@ -0,0 +1,20 @@
+/* { dg-options "-O1" } */
+
+inline bool
+a (int b)
+{
+  return (b & 5) != b;
+}
+int c;
+int
+fn2 ()
+{
+  if (a (c == 0))
+    return 0;
+}
+
+int main()
+{
+  fn2();
+}
+