From: Christian Bruel <christian.bruel@st.com>
Date: Mon, 19 May 2014 08:04:22 +0000 (+0200)
Subject: re PR target/61195 (single precision fmov does not need to switch mode)
X-Git-Tag: releases/gcc-5.1.0~7470
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=72d82e7ab1ef3c39568e6763b393826c77e8237a;p=thirdparty%2Fgcc.git

re PR target/61195 (single precision fmov does not need to switch mode)

PR target/61195
* config/sh/sh.md (movsf_ie): Unset fp_mode for fmov

From-SVN: r210608
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e592f85be1aa..d938d1d17a70 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-05-19  Christian Bruel  <christian.bruel@st.com>
+
+	PR target/61195
+	* config/sh/sh.md (movsf_ie): Unset fp_mode for fmov.
+
 2014-05-19  Richard Sandiford  <r.sandiford@uk.ibm.com>
 
 	PR target/61084
diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md
index f77f572d0e5f..0250f9231ec2 100644
--- a/gcc/config/sh/sh.md
+++ b/gcc/config/sh/sh.md
@@ -8357,9 +8357,29 @@ label:
       (const_int 2)
       (const_int 2)
       (const_int 0)])
-   (set (attr "fp_mode") (if_then_else (eq_attr "fmovd" "yes")
-					   (const_string "single")
-					   (const_string "single")))])
+  (set_attr_alternative "fp_mode"
+     [(if_then_else (eq_attr "fmovd" "yes")
+		    (const_string "single") (const_string "none"))
+      (const_string "none")
+      (const_string "single")
+      (const_string "single")
+      (const_string "none")
+      (if_then_else (eq_attr "fmovd" "yes")
+		    (const_string "single") (const_string "none"))
+      (if_then_else (eq_attr "fmovd" "yes")
+		    (const_string "single") (const_string "none"))
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")
+      (const_string "none")])])
 
 (define_split
   [(set (match_operand:SF 0 "register_operand" "")
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 753fdcf71b1f..846ad6d446c6 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2014-05-19  Christian Bruel  <christian.bruel@st.com>
+
+	PR target/61195
+	* gcc.target/sh/pr61195.c: New test.
+
 2014-05-18  Wei Mi  <wmi@google.com>
 
 	PR target/58066
diff --git a/gcc/testsuite/gcc.target/sh/pr61195.c b/gcc/testsuite/gcc.target/sh/pr61195.c
new file mode 100644
index 000000000000..f3fb10b7bf4a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/sh/pr61195.c
@@ -0,0 +1,19 @@
+/* Verify that we don't switch mode for single moves.  */
+/* { dg-do compile }  */
+/* { dg-require-effective-target hard_float } */
+/* { dg-skip-if "" { *-*-* }  { "mfmovd" } { "" } } */
+/* { dg-final { scan-assembler-not "fpscr" } } */
+
+float *g;
+
+float
+foo(float f)
+{
+  return f;
+}
+
+float
+foo1(void)
+{
+  return *g;
+}