From: Bernd Edlinger <bernd.edlinger@hotmail.de>
Date: Wed, 22 Jun 2016 13:01:11 +0000 (+0000)
Subject: i386.c (print_reg): Emit an error message on attempt to print FLAGS_REG.
X-Git-Tag: upstream/12.2.0~46231
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b60fc3bdf81ecc19693a5e8bab1ab079fa8f085d;p=platform%2Fupstream%2Fgcc.git

i386.c (print_reg): Emit an error message on attempt to print FLAGS_REG.

gcc:
2016-06-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/i386/i386.c (print_reg): Emit an error message on attempt to
        print FLAGS_REG.

testsuite:
2016-06-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gcc.target/i386/asm-flag-7.c: New test.

From-SVN: r237702
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b779396..909a742 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-06-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	* config/i386/i386.c (print_reg): Emit an error message on attempt to
+	print FLAGS_REG.
+
 2016-06-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* config/arm/arm.c (arm_cortex_a73_tune): New struct.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 9d36106..1e87286 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -17246,10 +17246,15 @@ print_reg (rtx x, int code, FILE *file)
 
   gcc_assert (regno != ARG_POINTER_REGNUM
 	      && regno != FRAME_POINTER_REGNUM
-	      && regno != FLAGS_REG
 	      && regno != FPSR_REG
 	      && regno != FPCR_REG);
 
+  if (regno == FLAGS_REG)
+    {
+      output_operand_lossage ("invalid use of asm flag output");
+      return;
+    }
+
   duplicated = code == 'd' && TARGET_AVX;
 
   switch (msize)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 31300ec1..b8546af 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2016-06-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	* gcc.target/i386/asm-flag-7.c: New test.
+
 2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
 	* gcc.dg/tree-ssa/forwprop-28.c: Remove mep-* support.
diff --git a/gcc/testsuite/gcc.target/i386/asm-flag-7.c b/gcc/testsuite/gcc.target/i386/asm-flag-7.c
new file mode 100644
index 0000000..1130997
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/asm-flag-7.c
@@ -0,0 +1,9 @@
+/* Test error conditions of asm flag outputs.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+void test(void)
+{
+  char x;
+  asm("# %0" : "=@ccz"(x)); /* { dg-error "invalid use of asm flag output" } */
+}