Hi!
In #pragma GCC ivdep there is nothing the preprocessor should care about,
thus there is no reason to register it when doing just -E (and, otherwise
we'd have to handle PRAGMA_IVDEP in pragma lookups).
Fixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux, ok for
trunk?
2014-02-19 Jakub Jelinek ja...@redhat.com
PR c++/60267
* c-pragma.c (init_pragma): Don't call cpp_register_deferred_pragma
for PRAGMA_IVDEP if flag_preprocess_only.
* gcc.dg/pr60267.c: New test.
--- gcc/c-family/c-pragma.c.jj 2014-02-12 17:46:22.0 +0100
+++ gcc/c-family/c-pragma.c 2014-02-19 09:49:08.410079037 +0100
@@ -1392,8 +1392,9 @@ init_pragma (void)
cpp_register_deferred_pragma (parse_in, GCC, pch_preprocess,
PRAGMA_GCC_PCH_PREPROCESS, false, false);
- cpp_register_deferred_pragma (parse_in, GCC, ivdep, PRAGMA_IVDEP, false,
- false);
+ if (!flag_preprocess_only)
+cpp_register_deferred_pragma (parse_in, GCC, ivdep, PRAGMA_IVDEP,
false,
+ false);
#ifdef HANDLE_PRAGMA_PACK_WITH_EXPANSION
c_register_pragma_with_expansion (0, pack, handle_pragma_pack);
#else
--- gcc/testsuite/gcc.dg/pr60267.c.jj 2014-02-19 09:57:15.083327458 +0100
+++ gcc/testsuite/gcc.dg/pr60267.c 2014-02-19 09:57:51.383122054 +0100
@@ -0,0 +1,14 @@
+/* PR c++/60267 */
+/* { dg-do compile } */
+/* { dg-options -O2 -save-temps } */
+
+void
+foo (int *a, int *b, int *c)
+{
+ int i;
+#pragma GCC ivdep
+ for (i = 0; i 64; i++)
+a[i] = b[i] * c[i];
+}
+
+/* { dg-final { cleanup-saved-temps } } */
Jakub
