2004-04-08 Geoffrey Keating <geoffk@apple.com>

	PR pch/13419
	PR pch/14137
	Radar #: 3315288
	* doc/invoke.texi (Precompiled Headers): Suggest -o
	to put an output file in a particular place.  Be more detailed
	about which options affect PCH validity and which options
	might not work.
	* c-pch.c (pch_matching): New.
	(MATCH_SIZE): New.
	(struct c_pch_validity): New field 'match'.
	(pch_init): Handle pch_matching.
	(c_common_valid_pch): Check pch_matching.

Index: testsuite/ChangeLog
2004-04-08  Geoffrey Keating  <geoffk@apple.com>

	* gcc.dg/pch/valid-1.c, gcc.dg/pch/valid-2.c, gcc.dg/pch/valid-3.c,
	gcc.dg/pch/valid-4.c, gcc.dg/pch/valid-5.c, gcc.dg/pch/valid-6.c,
	gcc.dg/pch/valid-1.hs, gcc.dg/pch/valid-2.hs, gcc.dg/pch/valid-3.hs,
	gcc.dg/pch/valid-4.hs, gcc.dg/pch/valid-5.hs, gcc.dg/pch/valid-6.hs:
	New tests.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@80531 138bc75d-0d04-0410-961f-82ee72b054a4

14 files changed, 49 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pch/valid-1.c b/gcc/testsuite/gcc.dg/pch/valid-1.c
new file mode 100644
index 00000000000..ebfa85a9949
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-1.c
@@ -0,0 +1,5 @@
+/* { dg-options "-I. -Winvalid-pch -g" } */
+
+#include "valid-1.h"/* { dg-error "created with -gnone, but used with -g|No such file|they were invalid" } */
+
+int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-1.hs b/gcc/testsuite/gcc.dg/pch/valid-1.hs
new file mode 100644
index 00000000000..e1ed11df4cc
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-1.hs
@@ -0,0 +1,3 @@
+/* { dg-options "-I. -Winvalid-pch -g0" } */
+
+extern int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-1b.c b/gcc/testsuite/gcc.dg/pch/valid-1b.c
new file mode 100644
index 00000000000..a2709967c07
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-1b.c
@@ -0,0 +1,5 @@
+/* { dg-options "-I. -Winvalid-pch -g0" } */
+
+#include "valid-1b.h"
+
+int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-1b.hs b/gcc/testsuite/gcc.dg/pch/valid-1b.hs
new file mode 100644
index 00000000000..6dc358735a7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-1b.hs
@@ -0,0 +1,3 @@
+/* { dg-options "-I. -Winvalid-pch -g" } */
+
+extern int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-2.c b/gcc/testsuite/gcc.dg/pch/valid-2.c
new file mode 100644
index 00000000000..52a2e35a441
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-2.c
@@ -0,0 +1,5 @@
+/* { dg-options "-I. -Winvalid-pch -fexceptions" } */
+
+#include "valid-2.h"/* { dg-error "settings for -fexceptions do not match|No such file|they were invalid" } */
+
+int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-2.hs b/gcc/testsuite/gcc.dg/pch/valid-2.hs
new file mode 100644
index 00000000000..2497af651c2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-2.hs
@@ -0,0 +1 @@
+extern int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-3.c b/gcc/testsuite/gcc.dg/pch/valid-3.c
new file mode 100644
index 00000000000..741a917df5d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-3.c
@@ -0,0 +1,5 @@
+/* { dg-options "-I. -Winvalid-pch -fno-unit-at-a-time" } */
+
+#include "valid-3.h"/* { dg-error "settings for -funit-at-a-time do not match|No such file|they were invalid" } */
+
+int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-3.hs b/gcc/testsuite/gcc.dg/pch/valid-3.hs
new file mode 100644
index 00000000000..2a0af94c9f7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-3.hs
@@ -0,0 +1,3 @@
+/* { dg-options "-I. -Winvalid-pch -funit-at-a-time" } */
+
+extern int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-4.c b/gcc/testsuite/gcc.dg/pch/valid-4.c
new file mode 100644
index 00000000000..1249531ef67
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-4.c
@@ -0,0 +1,6 @@
+/* { dg-options "-I. -Winvalid-pch -Wtrigraphs" } */
+
+#include "valid-4.h"
+
+char * x = "??/";  /* { dg-error "trigraph" } */
+
diff --git a/gcc/testsuite/gcc.dg/pch/valid-4.hs b/gcc/testsuite/gcc.dg/pch/valid-4.hs
new file mode 100644
index 00000000000..051c720ee3f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-4.hs
@@ -0,0 +1 @@
+extern char * x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-5.c b/gcc/testsuite/gcc.dg/pch/valid-5.c
new file mode 100644
index 00000000000..4022d0458f2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-5.c
@@ -0,0 +1,5 @@
+/* { dg-options "-I. -Winvalid-pch -pedantic-errors" } */
+
+#include "valid-5.h"
+
+int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-5.hs b/gcc/testsuite/gcc.dg/pch/valid-5.hs
new file mode 100644
index 00000000000..2497af651c2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-5.hs
@@ -0,0 +1 @@
+extern int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-6.c b/gcc/testsuite/gcc.dg/pch/valid-6.c
new file mode 100644
index 00000000000..f111c31ae99
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-6.c
@@ -0,0 +1,5 @@
+/* { dg-options "-I. -Winvalid-pch -dH -pipe -fcond-mismatch" } */
+
+#include "valid-6.h"
+
+int x;
diff --git a/gcc/testsuite/gcc.dg/pch/valid-6.hs b/gcc/testsuite/gcc.dg/pch/valid-6.hs
new file mode 100644
index 00000000000..2497af651c2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/valid-6.hs
@@ -0,0 +1 @@
+extern int x;