re PR debug/90900 (ICE in copy_rtx, at rtl.c:376)

2019-06-18  Richard Biener  <rguenther@suse.de>

	PR debug/90900
	* cfgexpand.c (expand_debug_expr): Treat NOTE_P DECL_RTL
	as if optimized away.

	* gcc.dg/gomp/pr90900.c: New testcase.

From-SVN: r272421

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index cdfaa5f..461792c 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-06-18  Richard Biener  <rguenther@suse.de>
+
+       PR debug/90900
+       * cfgexpand.c (expand_debug_expr): Treat NOTE_P DECL_RTL
+       as if optimized away.
+
 2019-06-18  Tom de Vries  <tdevries@suse.de>
 
        * config/nvptx/nvptx-protos.h (gen_set_softstack_insn): Remove.

diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 4272e24..cc8eed6 100644 (file)
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -4387,7 +4387,11 @@ expand_debug_expr (tree exp)
       op0 = DECL_RTL_IF_SET (exp);
 
       /* This decl was probably optimized away.  */
-      if (!op0)
+      if (!op0
+         /* At least label RTXen are sometimes replaced by
+            NOTE_INSN_DELETED_LABEL.  Any notes here are not
+            handled by copy_rtx.  */
+         || NOTE_P (op0))
        {
          if (!VAR_P (exp)
              || DECL_EXTERNAL (exp)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cc5feca..061f7fb 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-06-18  Richard Biener  <rguenther@suse.de>
+
+       PR debug/90900
+       * gcc.dg/gomp/pr90900.c: New testcase.
+
 2019-06-18  Martin Sebor  <msebor@redhat.com>
 
        * gcc.dg/pr90866-2.c: Remove a pointless declaration

diff --git a/gcc/testsuite/gcc.dg/gomp/pr90900.c b/gcc/testsuite/gcc.dg/gomp/pr90900.c
new file mode 100644 (file)
index 0000000..d4c5d7d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/gomp/pr90900.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fopenmp -g" } */
+
+void f (int a)
+{
+  void *x = &&lab;
+#pragma omp parallel
+  if (a)
+    { lab: __builtin_unreachable(); }
+  x;
+}