From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 2 Apr 2015 11:57:02 +0000 (+0200)
Subject: re PR preprocessor/61977 (powerpc preprocessor breaks on lines that end with "vector")
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b8cd77f40ce01c28d0186e55c92e9fa4b887cf65;p=gcc.git

re PR preprocessor/61977 (powerpc preprocessor breaks on lines that end with "vector")

	PR preprocessor/61977
	* lex.c (cpp_peek_token): Temporarily clear pfile->cb.line_change.

	* gcc.target/powerpc/pr61977-1.c: New test.
	* gcc.target/powerpc/pr61977-2.c: New test.

From-SVN: r221839
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d024bc938e4..a22eb607808 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2015-04-02  Jakub Jelinek  <jakub@redhat.com>
+
+	PR preprocessor/61977
+	* gcc.target/powerpc/pr61977-1.c: New test.
+	* gcc.target/powerpc/pr61977-2.c: New test.
+
 2015-04-01  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/56100
diff --git a/gcc/testsuite/gcc.target/powerpc/pr61977-1.c b/gcc/testsuite/gcc.target/powerpc/pr61977-1.c
new file mode 100644
index 00000000000..50e6d28161d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr61977-1.c
@@ -0,0 +1,8 @@
+/* PR preprocessor/61977 */
+/* { dg-do preprocess } */
+/* { dg-options "-mno-altivec -mno-vsx" } */
+
+int y; vector
+int x;
+
+/* { dg-final { scan-file "pr61977-1.i" "(^|\\n)int y; vector\\n" } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/pr61977-2.c b/gcc/testsuite/gcc.target/powerpc/pr61977-2.c
new file mode 100644
index 00000000000..305e45f6467
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr61977-2.c
@@ -0,0 +1,8 @@
+/* PR preprocessor/61977 */
+/* { dg-do preprocess } */
+/* { dg-options "-maltivec" } */
+
+int y; vector
+int x;
+
+/* { dg-final { scan-file "pr61977-2.i" "(^|\\n)int y; __attribute__\\(\\(altivec\\(vector__\\)\\)\\)\\n" } } */
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index daaa11ea127..829abba8cf9 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,8 @@
+2015-04-02  Jakub Jelinek  <jakub@redhat.com>
+
+	PR preprocessor/61977
+	* lex.c (cpp_peek_token): Temporarily clear pfile->cb.line_change.
+
 2015-03-23  Jakub Jelinek  <jakub@redhat.com>
 
 	PR preprocessor/65238
diff --git a/libcpp/lex.c b/libcpp/lex.c
index bca56299132..d1e221110fc 100644
--- a/libcpp/lex.c
+++ b/libcpp/lex.c
@@ -2080,6 +2080,12 @@ cpp_peek_token (cpp_reader *pfile, int index)
   count = index;
   pfile->keep_tokens++;
 
+  /* For peeked tokens temporarily disable line_change reporting,
+     until the tokens are parsed for real.  */
+  void (*line_change) (cpp_reader *, const cpp_token *, int)
+    = pfile->cb.line_change;
+  pfile->cb.line_change = NULL;
+
   do
     {
       peektok = _cpp_lex_token (pfile);
@@ -2090,6 +2096,7 @@ cpp_peek_token (cpp_reader *pfile, int index)
 
   _cpp_backup_tokens_direct (pfile, count + 1);
   pfile->keep_tokens--;
+  pfile->cb.line_change = line_change;
 
   return peektok;
 }