From: Alan Modra <amodra@gmail.com>
Date: Tue, 13 Nov 2018 03:20:22 +0000 (+1030)
Subject: [RS6000] Rotate testcase
X-Git-Tag: basepoints/gcc-10~3126
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=21edd5af33efc75544b53977cf9f73dac5181ca5;p=thirdparty%2Fgcc.git

[RS6000] Rotate testcase

The testcase exercises one of the rotate patterns.

gcc/
	* config/rs6000/predicates.md (logical_const_operand),
	(logical_operand): Correct comment.
gcc/testsuite/
	* gcc.target/powerpc/rotmask.c: New.

From-SVN: r266046
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 99500638f12a..b2ab5487d556 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-11-13  Alan Modra  <amodra@gmail.com>
+
+	* config/rs6000/predicates.md (logical_const_operand),
+	(logical_operand): Correct comment.
+
 2018-11-13  Alan Modra  <amodra@gmail.com>
 
 	* config/rs6000/rs6000.md (addsi3_high): Prefix with '*'.
diff --git a/gcc/config/rs6000/predicates.md b/gcc/config/rs6000/predicates.md
index 40b0114a64f0..b80c278d7424 100644
--- a/gcc/config/rs6000/predicates.md
+++ b/gcc/config/rs6000/predicates.md
@@ -922,7 +922,7 @@
 		    && !satisfies_constraint_L (op)")))
 
 ;; Return 1 if the operand is a constant that can be used as the operand
-;; of an OR or XOR.
+;; of an AND, OR or XOR.
 (define_predicate "logical_const_operand"
   (match_code "const_int")
 {
@@ -935,7 +935,7 @@
 })
 
 ;; Return 1 if the operand is a non-special register or a constant that
-;; can be used as the operand of an OR or XOR.
+;; can be used as the operand of an AND, OR or XOR.
 (define_predicate "logical_operand"
   (ior (match_operand 0 "gpc_reg_operand")
        (match_operand 0 "logical_const_operand")))
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cff23eee5a15..e7d4ad7143c2 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2018-11-13  Alan Modra  <amodra@gmail.com>
+
+	* gcc.target/powerpc/rotmask.c: New.
+
 2018-11-13  Kugan Vivekanandarajah  <kuganv@linaro.org>
 
 	PR middle-end/86677
diff --git a/gcc/testsuite/gcc.target/powerpc/rotmask.c b/gcc/testsuite/gcc.target/powerpc/rotmask.c
new file mode 100644
index 000000000000..4d1b91749218
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/rotmask.c
@@ -0,0 +1,8 @@
+/* { dg-require-effective-target lp64 } */
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler-not "rotldi" } } */
+
+unsigned long f (unsigned long x)
+{
+  return ((x << 1) | (x >> 63)) & 0xffffffff;
+}