altivec.md (altivec_lvsl): New define_expand.

[gcc]

2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* altivec.md (altivec_lvsl): New define_expand.
	(altivec_lvsl_direct): Rename define_insn from altivec_lvsl.
	(altivec_lvsr): New define_expand.
	(altivec_lvsr_direct): Rename define_insn from altivec_lvsr.
	* rs6000.c (rs6000_expand_builtin): Change to use
	altivec_lvs[lr]_direct; remove commented-out code.

[gcc/testsuite]

2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gcc.target/powerpc/lvsl-lvsr.c: New test.

From-SVN: r215882

gcc/ChangeLog

 2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 
+	* altivec.md (altivec_lvsl): New define_expand.
+	(altivec_lvsl_direct): Rename define_insn from altivec_lvsl.
+	(altivec_lvsr): New define_expand.
+	(altivec_lvsr_direct): Rename define_insn from altivec_lvsr.
+	* rs6000.c (rs6000_expand_builtin): Change to use
+	altivec_lvs[lr]_direct; remove commented-out code.
+
+2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
 	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
 	Issue a warning message when vec_lvsl or vec_lvsr is used with a
 	little endian target.

gcc/config/rs6000/altivec.md

@@ -2297,7 +2297,31 @@
   "dststt %0,%1,%2"
   [(set_attr "type" "vecsimple")])
 
-(define_insn "altivec_lvsl"
+(define_expand "altivec_lvsl"
+  [(use (match_operand:V16QI 0 "register_operand" ""))
+   (use (match_operand:V16QI 1 "memory_operand" ""))]
+  "TARGET_ALTIVEC"
+{
+  if (VECTOR_ELT_ORDER_BIG)
+    emit_insn (gen_altivec_lvsl_direct (operands[0], operands[1]));
+  else
+    {
+      int i;
+      rtx mask, perm[16], constv, vperm;
+      mask = gen_reg_rtx (V16QImode);
+      emit_insn (gen_altivec_lvsl_direct (mask, operands[1]));
+      for (i = 0; i < 16; ++i)
+        perm[i] = GEN_INT (i);
+      constv = gen_rtx_CONST_VECTOR (V16QImode, gen_rtvec_v (16, perm));
+      constv = force_reg (V16QImode, constv);
+      vperm = gen_rtx_UNSPEC (V16QImode, gen_rtvec (3, mask, mask, constv),
+                              UNSPEC_VPERM);
+      emit_insn (gen_rtx_SET (VOIDmode, operands[0], vperm));
+    }
+  DONE;
+})
+
+(define_insn "altivec_lvsl_direct"
   [(set (match_operand:V16QI 0 "register_operand" "=v")
 	(unspec:V16QI [(match_operand:V16QI 1 "memory_operand" "Z")]
 		      UNSPEC_LVSL))]
@@ -2305,7 +2329,31 @@
   "lvsl %0,%y1"
   [(set_attr "type" "vecload")])
 
-(define_insn "altivec_lvsr"
+(define_expand "altivec_lvsr"
+  [(use (match_operand:V16QI 0 "register_operand" ""))
+   (use (match_operand:V16QI 1 "memory_operand" ""))]
+  "TARGET_ALTIVEC"
+{
+  if (VECTOR_ELT_ORDER_BIG)
+    emit_insn (gen_altivec_lvsr_direct (operands[0], operands[1]));
+  else
+    {
+      int i;
+      rtx mask, perm[16], constv, vperm;
+      mask = gen_reg_rtx (V16QImode);
+      emit_insn (gen_altivec_lvsr_direct (mask, operands[1]));
+      for (i = 0; i < 16; ++i)
+        perm[i] = GEN_INT (i);
+      constv = gen_rtx_CONST_VECTOR (V16QImode, gen_rtvec_v (16, perm));
+      constv = force_reg (V16QImode, constv);
+      vperm = gen_rtx_UNSPEC (V16QImode, gen_rtvec (3, mask, mask, constv),
+                              UNSPEC_VPERM);
+      emit_insn (gen_rtx_SET (VOIDmode, operands[0], vperm));
+    }
+  DONE;
+})
+
+(define_insn "altivec_lvsr_direct"
   [(set (match_operand:V16QI 0 "register_operand" "=v")
 	(unspec:V16QI [(match_operand:V16QI 1 "memory_operand" "Z")]
 		      UNSPEC_LVSR))]

gcc/config/rs6000/rs6000.c

@@ -13898,8 +13898,8 @@ rs6000_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
     case ALTIVEC_BUILTIN_MASK_FOR_LOAD:
     case ALTIVEC_BUILTIN_MASK_FOR_STORE:
       {
-	int icode = (BYTES_BIG_ENDIAN ? (int) CODE_FOR_altivec_lvsr
-		     : (int) CODE_FOR_altivec_lvsl);
+	int icode = (BYTES_BIG_ENDIAN ? (int) CODE_FOR_altivec_lvsr_direct
+		     : (int) CODE_FOR_altivec_lvsl_direct);
 	enum machine_mode tmode = insn_data[icode].operand[0].mode;
 	enum machine_mode mode = insn_data[icode].operand[1].mode;
 	tree arg;
@@ -13927,7 +13927,6 @@ rs6000_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
 	    || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
 	  target = gen_reg_rtx (tmode);
 
-	/*pat = gen_altivec_lvsr (target, op);*/
 	pat = GEN_FCN (icode) (target, op);
 	if (!pat)
 	  return 0;

gcc/testsuite/ChangeLog

 2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 
+	* gcc.target/powerpc/lvsl-lvsr.c: New test.
+
+2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
 	* g++.dg/ext/altivec-2.C: Compile with -Wno-deprecated to avoid
 	failing with the new warning message.
 	* gcc.dg/vmx/3c-01a.c: Likewise.

gcc/testsuite/gcc.target/powerpc/lvsl-lvsr.c

+/* Test expected code generation for lvsl and lvsr on little endian.
+   Note that lvsl and lvsr are each produced once, but the filename
+   causes them to appear twice in the file.  */
+
+/* { dg-do compile { target { powerpc64le-*-* } } } */
+/* { dg-options "-O0 -Wno-deprecated" } */
+/* { dg-final { scan-assembler-times "lvsl" 2 } } */
+/* { dg-final { scan-assembler-times "lvsr" 2 } } */
+/* { dg-final { scan-assembler-times "lxvd2x" 2 } } */
+/* { dg-final { scan-assembler-times "vperm" 2 } } */
+
+
+#include <altivec.h>
+
+float f[20];
+
+void foo ()
+{
+  vector unsigned char a = vec_lvsl (4, f);
+  vector unsigned char b = vec_lvsr (8, f);
+}