From: Uros Bizjak <ubizjak@gmail.com>
Date: Wed, 23 Apr 2014 17:53:56 +0000 (+0200)
Subject: backport: re PR target/60909 (ICE: in extract_insn, at recog.c:2202 (unrecognizable... 
X-Git-Tag: releases/gcc-4.8.3~121
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=17a533808c66f2e8d442131ae888cd7953a05de9;p=thirdparty%2Fgcc.git

backport: re PR target/60909 (ICE: in extract_insn, at recog.c:2202 (unrecognizable insn) with -mrdrnd and __builtin_ia32_rdrand32_step())

        Backport from mainline
        2014-04-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/60909
        * config/i386/i386.c (ix86_expand_builtin)
        <case IX86_BUILTIN_RDRAND{16,32,64}_STEP>: Use temporary
        register for target RTX.
        <case IX86_BUILTIN_RDSEED{16,32,64}_STEP>: Ditto.

testsuite/ChangeLog:

        Backport from mainline
        2014-04-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/60909
        * gcc.target/i386/pr60909-1.c: New test.
        * gcc.target/i386/pr60909-2.c: Ditto.

From-SVN: r209715
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6ef4c16b3880..73f7a5936764 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,14 @@
+2014-04-23  Uros Bizjak  <ubizjak@gmail.com>
+
+	Backport from mainline
+	2014-04-21  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/60909
+	* config/i386/i386.c (ix86_expand_builtin)
+	<case IX86_BUILTIN_RDRAND{16,32,64}_STEP>: Use temporary
+	register for target RTX.
+	<case IX86_BUILTIN_RDSEED{16,32,64}_STEP>: Ditto.
+
 2014-04-23  Richard Biener  <rguenther@suse.de>
 
 	Backport from mainline
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index e3d45a69f4b1..6243f1067881 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -32059,7 +32059,8 @@ rdrand_step:
       else
 	op2 = gen_rtx_SUBREG (SImode, op0, 0);
 
-      if (target == 0)
+      if (target == 0
+	  || !register_operand (target, SImode))
 	target = gen_reg_rtx (SImode);
 
       pat = gen_rtx_GEU (VOIDmode, gen_rtx_REG (CCCmode, FLAGS_REG),
@@ -32101,7 +32102,8 @@ rdseed_step:
                          const0_rtx);
       emit_insn (gen_rtx_SET (VOIDmode, op2, pat));
 
-      if (target == 0)
+      if (target == 0
+	  || !register_operand (target, SImode))
         target = gen_reg_rtx (SImode);
 
       emit_insn (gen_zero_extendqisi2 (target, op2));
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index daa6363d5e21..b0331f3e1fda 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2014-04-23  Uros Bizjak  <ubizjak@gmail.com>
+
+	Backport from mainline
+	2014-04-21  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/60909
+	* gcc.target/i386/pr60909-1.c: New test.
+	* gcc.target/i386/pr60909-2.c: Ditto.
+
 2014-04-23  Richard Biener  <rguenther@suse.de>
 
 	Backport from mainline
diff --git a/gcc/testsuite/gcc.target/i386/pr60909-1.c b/gcc/testsuite/gcc.target/i386/pr60909-1.c
new file mode 100644
index 000000000000..5a1ac3c0f6c2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr60909-1.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-mrdrnd" } */
+
+extern void bar (int);
+
+void
+foo (unsigned *u)
+{
+  int i = __builtin_ia32_rdrand32_step (u);
+  bar (i);
+}
diff --git a/gcc/testsuite/gcc.target/i386/pr60909-2.c b/gcc/testsuite/gcc.target/i386/pr60909-2.c
new file mode 100644
index 000000000000..dd356685ba90
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr60909-2.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-mrdseed" } */
+
+extern void bar (int);
+
+void
+foo (unsigned *u)
+{
+  int i = __builtin_ia32_rdseed_si_step (u);
+  bar (i);
+}