From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 30 Aug 2019 12:20:12 +0000 (+0200)
Subject: backport: re PR debug/89704 (ICE in add_const_value_attribute, at dwarf2out.c:19685)
X-Git-Tag: releases/gcc-7.5.0~230
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59ab6dc89f8f0e76d3e9419aa11e1f26104e4ef0;p=thirdparty%2Fgcc.git

backport: re PR debug/89704 (ICE in add_const_value_attribute, at dwarf2out.c:19685)

	Backported from mainline
	2019-03-15  Jakub Jelinek  <jakub@redhat.com>

	PR debug/89704
	* dwarf2out.c (add_const_value_attribute): Return false for MINUS,
	SIGN_EXTEND and ZERO_EXTEND.

	* gcc.dg/debug/pr89704.c: New test.

From-SVN: r275133
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 37e1a9fe8efc..e0b0736c9e2c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,12 @@
 2019-08-30  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
+	2019-03-15  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/89704
+	* dwarf2out.c (add_const_value_attribute): Return false for MINUS,
+	SIGN_EXTEND and ZERO_EXTEND.
+
 	2019-03-14  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/89679
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 2069051cd0dc..a7f560872c0b 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -18679,6 +18679,9 @@ add_const_value_attribute (dw_die_ref die, rtx rtl)
 
     case HIGH:
     case CONST_FIXED:
+    case MINUS:
+    case SIGN_EXTEND:
+    case ZERO_EXTEND:
       return false;
 
     case MEM:
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d9fdc68c19ef..7a134fcc4fac 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,11 @@
 2019-08-30  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
+	2019-03-15  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/89704
+	* gcc.dg/debug/pr89704.c: New test.
+
 	2019-03-14  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/89679
diff --git a/gcc/testsuite/gcc.dg/debug/pr89704.c b/gcc/testsuite/gcc.dg/debug/pr89704.c
new file mode 100644
index 000000000000..4a8cf4fa4564
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/pr89704.c
@@ -0,0 +1,14 @@
+/* PR debug/89704 */
+/* { dg-do compile } */
+
+typedef __INTPTR_TYPE__ intptr_t;
+
+int
+foo (void)
+{
+  lab1:;
+  lab2:;
+  static int i = (intptr_t) &&lab1 - (intptr_t) &&lab2;
+  static int j = (intptr_t) &&lab1 - (intptr_t) &&lab2;
+  return i;
+}