From: vries <vries@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 3 Aug 2017 11:18:09 +0000 (+0000)
Subject: Error out on nvptx for fpatchable-function-entry
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bf37bfaecdcb36409ebaa23675d2c3c5226db16a;p=thirdparty%2Fgcc.git

Error out on nvptx for fpatchable-function-entry

2017-08-03  Tom de Vries  <tom@codesourcery.com>

	PR target/81662
	* config/nvptx/nvptx.c (nvptx_option_override): Emit sorry if
	function_entry_patch_area_size > 0.

	* gcc.target/nvptx/patchable_function_entry-default.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@250851 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f7b620c4d0df..0449bfc13d69 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-08-03  Tom de Vries  <tom@codesourcery.com>
+
+	PR target/81662
+	* config/nvptx/nvptx.c (nvptx_option_override): Emit sorry if
+	function_entry_patch_area_size > 0.
+
 2017-08-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR driver/81650
diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c
index 0d21eb1406c2..dddb9522dfae 100644
--- a/gcc/config/nvptx/nvptx.c
+++ b/gcc/config/nvptx/nvptx.c
@@ -180,6 +180,10 @@ nvptx_option_override (void)
   if (!global_options_set.x_flag_no_common)
     flag_no_common = 1;
 
+  /* The patch area requires nops, which we don't have.  */
+  if (function_entry_patch_area_size > 0)
+    sorry ("not generating patch area, nops not supported");
+
   /* Assumes that it will see only hard registers.  */
   flag_var_tracking = 0;
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 53829f7e779a..760a454c0b0c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2017-08-03  Tom de Vries  <tom@codesourcery.com>
+
+	PR target/81662
+	* gcc.target/nvptx/patchable_function_entry-default.c: New test.
+
 2017-08-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR driver/81650
diff --git a/gcc/testsuite/gcc.target/nvptx/patchable_function_entry-default.c b/gcc/testsuite/gcc.target/nvptx/patchable_function_entry-default.c
new file mode 100644
index 000000000000..425445627257
--- /dev/null
+++ b/gcc/testsuite/gcc.target/nvptx/patchable_function_entry-default.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fpatchable-function-entry=3,1" } */
+
+extern int a;
+
+int f3 (void);
+
+int
+__attribute__((noinline))
+f3 (void)
+{
+  return 5*a;
+}
+
+/* { dg-excess-errors "sorry, unimplemented: not generating patch area, nops not supported" } */