From: Claudiu Zissulescu <claziss@synopsys.com>
Date: Mon, 22 Jul 2019 07:21:24 +0000 (+0200)
Subject: [ARC] Backport ix emitting TLS symbols.
X-Git-Tag: releases/gcc-9.2.0~125
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b956e05c5786cbd7eb4f7f5e0398573096de98bf;p=thirdparty%2Fgcc.git

[ARC] Backport ix emitting TLS symbols.

From-SVN: r273658
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 30b2ea0255ab..258a5d0b288e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-07-22  Claudiu Zissulescu  <claziss@synopsys.com>
+
+	Backport from mainline.
+	* config/arc/arc.c (prepare_move_operands): Always use an
+	intermediate register when storing a TLS symbols.
+
 2019-07-20  Richard Sandiford  <richard.sandiford@arm.com>
 
 	Backport from mainline
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
index daacc79d0cbe..ee1f70bbb515 100644
--- a/gcc/config/arc/arc.c
+++ b/gcc/config/arc/arc.c
@@ -8951,7 +8951,7 @@ prepare_move_operands (rtx *operands, machine_mode mode)
   if (GET_CODE (operands[1]) == SYMBOL_REF)
     {
       enum tls_model model = SYMBOL_REF_TLS_MODEL (operands[1]);
-      if (MEM_P (operands[0]) && flag_pic)
+      if (MEM_P (operands[0]))
 	operands[1] = force_reg (mode, operands[1]);
       else if (model)
 	operands[1] = arc_legitimize_tls_address (operands[1], model);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e57acad0d33f..b028bfdedf96 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2019-07-22  Claudiu Zissulescu  <claziss@synopsys.com>
+
+	Backport from mainline
+	* gcc.target/arc/tls-2.c: New test.
+	* gcc.target/arc/tls-3.c: Likewise.
+
 2019-07-20  Richard Sandiford  <richard.sandiford@arm.com>
 
 	Backport from mainline
diff --git a/gcc/testsuite/gcc.target/arc/tls-2.c b/gcc/testsuite/gcc.target/arc/tls-2.c
new file mode 100644
index 000000000000..3cec309a0b4e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arc/tls-2.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target tls } */
+/* { dg-skip-if "" { arc*-*-elf* } } */
+/* { dg-options "-O2" } */
+
+typedef int type_a;
+__thread int b;
+int c;
+
+extern int bar (char *, int, int *, int, int *, char, type_a, int *, int *);
+int foo (int *f, char buffer, type_a buflen, int *g)
+{
+  bar("", c, (int *)foo, 1, (int *)f, buffer, buflen, (int *)g, &b);
+}
diff --git a/gcc/testsuite/gcc.target/arc/tls-3.c b/gcc/testsuite/gcc.target/arc/tls-3.c
new file mode 100644
index 000000000000..e78b5a22742e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arc/tls-3.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target tls } */
+/* { dg-skip-if "" { arc*-*-elf* } } */
+/* { dg-options "-Os -fPIC" } */
+
+
+typedef struct
+{
+  int(a);
+  char b[];
+} type_c;
+
+
+extern int bar (char *, int, char *);
+static _Thread_local type_c d;
+int foo(void)
+{
+  bar(d.b, 0,  d.b);
+}