From: Eric Botcazou <ebotcazou@adacore.com>
Date: Thu, 12 Nov 2015 11:55:11 +0000 (+0000)
Subject: re PR target/67265 ([x86] 'asm' operand has impossible constraints with -fstack-check)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c892ccd49211ec57b732463342b5806bdf68e254;p=gcc.git

re PR target/67265 ([x86] 'asm' operand has impossible constraints with -fstack-check)

	PR target/67265
	* config/i386/i386.c (ix86_adjust_stack_and_probe): Remove obsolete
	assertion on the CFA register.

From-SVN: r230245
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0a2a9ae2126..ab7d52959f8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2015-11-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR target/67265
+	* config/i386/i386.c (ix86_adjust_stack_and_probe): Remove obsolete
+	assertion on the CFA register.
+
 2015-11-12  Ilya Enkovich  <enkovich.gnu@gmail.com>
 
 	* expr.c (do_store_flag): Expand vector comparison as
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index d048b19f385..1a6b2fd760e 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -12246,8 +12246,6 @@ ix86_adjust_stack_and_probe (const HOST_WIDE_INT size)
       release_scratch_register_on_entry (&sr);
     }
 
-  gcc_assert (cfun->machine->fs.cfa_reg != stack_pointer_rtx);
-
   /* Even if the stack pointer isn't the CFA register, we need to correctly
      describe the adjustments made to it, in particular differentiate the
      frame-related ones from the frame-unrelated ones.  */
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 20a7deb6017..d3259b6fa38 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2015-11-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc.target/i386/pr67265-2.c: New test.
+
 2015-11-12  Ilya Enkovich  <enkovich.gnu@gmail.com>
 
 	* gcc.dg/pr68286.c: New test.
diff --git a/gcc/testsuite/gcc.target/i386/pr67265-2.c b/gcc/testsuite/gcc.target/i386/pr67265-2.c
new file mode 100644
index 00000000000..a9f2eb460ef
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr67265-2.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fstack-check" } */
+
+void foo (int n)
+{
+  volatile char arr[64 * 1024];
+
+  arr[n] = 1;
+}