rs6000.c (expand_block_clear): Add TARGET_SPE cases to set eight bytes at a time.

gcc/
	* config/rs6000/rs6000.c (expand_block_clear): Add TARGET_SPE
	cases to set eight bytes at a time.
	(expand_block_move): Likewise.

gcc/testsuite/
	* gcc.target/powerpc/spe-vector-memset.c: New testcase.
	* gcc.target/powerpc/spe-vector-memcpy.c: New testcase.

From-SVN: r127670

5 files changed, 50 insertions, 3 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 82b7685..6cbda5f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2007-08-21  Nathan Froyd  <froydnj@codesourcery.com>
+
+	* config/rs6000/rs6000.c (expand_block_clear): Add TARGET_SPE
+	cases to set eight bytes at a time.
+	(expand_block_move): Likewise.
+	
 2007-08-21  Jakub Jelinek  <jakub@redhat.com>
 
 	PR debug/32610
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 5354e52..44e4928 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -9852,6 +9852,8 @@ expand_block_clear (rtx operands[])
     clear_step = 16;
   else if (TARGET_POWERPC64 && align >= 32)
     clear_step = 8;
+  else if (TARGET_SPE && align >= 64)
+    clear_step = 8;
   else
     clear_step = 4;
 
@@ -9870,10 +9872,15 @@ expand_block_clear (rtx operands[])
 	  clear_bytes = 16;
 	  mode = V4SImode;
 	}
+      else if (bytes >= 8 && TARGET_SPE && align >= 64)
+        {
+          clear_bytes = 8;
+          mode = V2SImode;
+        }
       else if (bytes >= 8 && TARGET_POWERPC64
-	  /* 64-bit loads and stores require word-aligned
-	     displacements.  */
-	  && (align >= 64 || (!STRICT_ALIGNMENT && align >= 32)))
+	       /* 64-bit loads and stores require word-aligned
+		  displacements.  */
+	       && (align >= 64 || (!STRICT_ALIGNMENT && align >= 32)))
 	{
 	  clear_bytes = 8;
 	  mode = DImode;
@@ -9963,6 +9970,12 @@ expand_block_move (rtx operands[])
 	  mode = V4SImode;
 	  gen_func.mov = gen_movv4si;
 	}
+      else if (TARGET_SPE && bytes >= 8 && align >= 64)
+        {
+          move_bytes = 8;
+          mode = V2SImode;
+          gen_func.mov = gen_movv2si;
+        }
       else if (TARGET_STRING
 	  && bytes > 24		/* move up to 32 bytes at a time */
 	  && ! fixed_regs[5]
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 002f824..9800a7f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2007-08-21  Nathan Froyd  <froydnj@codesourcery.com>
+
+	* gcc.target/powerpc/spe-vector-memset.c: New testcase.
+	* gcc.target/powerpc/spe-vector-memcpy.c: New testcase.
+
 2007-08-21  Jakub Jelinek  <jakub@redhat.com>
 
 	PR debug/32610
diff --git a/gcc/testsuite/gcc.target/powerpc/spe-vector-memcpy.c b/gcc/testsuite/gcc.target/powerpc/spe-vector-memcpy.c
new file mode 100644
index 0000000..d12f669
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/spe-vector-memcpy.c
@@ -0,0 +1,10 @@
+/* { dg-do compile { target powerpc*-*-* } } */
+/* { dg-require-effective-target powerpc_spe } */
+/* { dg-options "-O -mspe=yes" } */
+/* { dg-final { scan-assembler "evstdd" } } */
+
+void foo(void)
+{
+  int x[8] __attribute__((aligned(64))) = { 1, 1, 1, 1, 1, 1, 1, 1 };
+  bar (x);
+}
diff --git a/gcc/testsuite/gcc.target/powerpc/spe-vector-memset.c b/gcc/testsuite/gcc.target/powerpc/spe-vector-memset.c
new file mode 100644
index 0000000..7ecaf10
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/spe-vector-memset.c
@@ -0,0 +1,13 @@
+/* { dg-do compile { target powerpc*-*-* } } */
+/* { dg-require-effective-target powerpc_spe } */
+/* { dg-options "-O -mspe=yes" } */
+/* { dg-final { scan-assembler "evstdd" } } */
+
+#include <string.h>
+
+void foo(void)
+{
+  int x[8] __attribute__((aligned(64)));
+  memset (x, 0, sizeof (x));
+  bar (x);
+}