From: Volker Reichelt <reichelt@igpm.rwth-aachen.de>
Date: Mon, 22 May 2006 16:53:38 +0000 (+0000)
Subject: re PR c++/27451 (ICE with invalid asm statement)
X-Git-Tag: releases/gcc-4.0.4~672
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9de1135bff9703e535780de7e7ed457137731dd7;p=thirdparty%2Fgcc.git

re PR c++/27451 (ICE with invalid asm statement)

	PR c++/27451
	* stmt.c (expand_asm_operands): Skip asm statement with erroneous
	clobbers.

	* g++.dg/ext/asm9.C: New test.

From-SVN: r113986
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bcf3002df868..1aad6d82eda3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/27451
+	* stmt.c (expand_asm_operands): Skip asm statement with erroneous
+	clobbers.
+
 2006-05-15  Roger Sayle  <roger@eyesopen.com>
 
 	PR rtl-optimization/22563
diff --git a/gcc/stmt.c b/gcc/stmt.c
index db36c699afd1..5dd5e82d115f 100644
--- a/gcc/stmt.c
+++ b/gcc/stmt.c
@@ -664,7 +664,11 @@ expand_asm_operands (tree string, tree outputs, tree inputs,
   CLEAR_HARD_REG_SET (clobbered_regs);
   for (tail = clobbers; tail; tail = TREE_CHAIN (tail))
     {
-      const char *regname = TREE_STRING_POINTER (TREE_VALUE (tail));
+      const char *regname;
+
+      if (TREE_VALUE (tail) == error_mark_node)
+	return;
+      regname = TREE_STRING_POINTER (TREE_VALUE (tail));
 
       i = decode_reg_name (regname);
       if (i >= 0 || i == -4)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0ed0913452ce..fd9901b5e5f7 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/27451
+	* g++.dg/ext/asm9.C: New test.
+
 2006-05-15  Roger Sayle  <roger@eyesopen.com>
 
 	PR middle-end/26729
diff --git a/gcc/testsuite/g++.dg/ext/asm9.C b/gcc/testsuite/g++.dg/ext/asm9.C
new file mode 100644
index 000000000000..9daa01bbf5f9
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/asm9.C
@@ -0,0 +1,7 @@
+// PR 27451
+// { dg-do compile }
+
+void foo()
+{
+  asm("" ::: X); // { dg-error "before" }
+}