From 2af0c3edd190d66ad9caa66fd98167669487c050 Mon Sep 17 00:00:00 2001
From: Uros Bizjak <ubizjak@gmail.com>
Date: Tue, 28 Feb 2017 19:03:16 +0100
Subject: [PATCH] i386.c (print_reg): Error out for values of 8-bit size in
 invalid integer register.

	* config/i386/i386.c (print_reg): Error out for values
	of 8-bit size in invalid integer register.

testsuite/ChangeLog:

	* gcc.target/i386/invsize-1.c: New test.

From-SVN: r245785
---
 gcc/ChangeLog                             | 5 +++++
 gcc/config/i386/i386.c                    | 2 ++
 gcc/testsuite/ChangeLog                   | 4 ++++
 gcc/testsuite/gcc.target/i386/invsize-1.c | 8 ++++++++
 4 files changed, 19 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/i386/invsize-1.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3c6dbf414d2..880679112e3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-02-28  Uros Bizjak  <ubizjak@gmail.com>
+
+	* config/i386/i386.c (print_reg): Error out for values
+	of 8-bit size in invalid integer register.
+
 2017-02-28  Martin Sebor  <msebor@redhat.com>
 
 	PR tree-optimization/79691
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index b35b56cbdcf..2b11aa1c37d 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -17660,6 +17660,8 @@ print_reg (rtx x, int code, FILE *file)
     case 1:
       if (regno >= ARRAY_SIZE (qi_reg_name))
 	goto normal;
+      if (!ANY_QI_REGNO_P (regno))
+	error ("unsupported size for integer register in 32-bit mode");
       reg = qi_reg_name[regno];
       break;
     case 0:
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3e14d498f6d..a9ff533fb99 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2017-02-28  Uros Bizjak  <ubizjak@gmail.com>
+
+	* gcc.target/i386/invsize-1.c: New test.
+
 2017-02-28  Martin Sebor  <msebor@redhat.com>
 
 	PR tree-optimization/79691
diff --git a/gcc/testsuite/gcc.target/i386/invsize-1.c b/gcc/testsuite/gcc.target/i386/invsize-1.c
new file mode 100644
index 00000000000..f7e59211f65
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/invsize-1.c
@@ -0,0 +1,8 @@
+/* { dg-do compile { target ia32 } } */
+
+void foo (char x)
+{
+  register char rx __asm ("si") = x;
+
+  __asm__ volatile ("# %0" : : "r" (rx));
+} /* { dg-error "unsupported size" }  */