[PATCH 1/3] vect: Pass stmt_vec_info to TARGET_SIMD_CLONE_USABLE

[Andre Vieira]

This patch adds stmt_vec_info to TARGET_SIMD_CLONE_USABLE to make sure the
target can reject a simd_clone based on the vector mode it is using.
This is needed because for VLS SVE vectorization the vectorizer accepts
Advanced SIMD simd clones when vectorizing using SVE types because the simdlens
might match.  This will cause type errors later on.

Other targets do not currently need to use this argument.

gcc/ChangeLog:

        * target.def (TARGET_SIMD_CLONE_USABLE): Add argument.
        * tree-vect-stmts.cc (vectorizable_simd_clone_call): Pass stmt_info to
        call TARGET_SIMD_CLONE_USABLE.
        * config/aarch64/aarch64.cc (aarch64_simd_clone_usable): Add argument
        and use it to reject the use of SVE simd clones with Advanced SIMD
        modes.
        * config/gcn/gcn.cc (gcn_simd_clone_usable): Add unused argument.
        * config/i386/i386.cc (ix86_simd_clone_usable): Likewise.


diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
index a37d47b243e..31617510160 100644
--- a/gcc/config/aarch64/aarch64.cc
+++ b/gcc/config/aarch64/aarch64.cc
@@ -28694,13 +28694,16 @@ aarch64_simd_clone_adjust (struct cgraph_node *node)
 /* Implement TARGET_SIMD_CLONE_USABLE.  */
 
 static int
-aarch64_simd_clone_usable (struct cgraph_node *node)
+aarch64_simd_clone_usable (struct cgraph_node *node, stmt_vec_info stmt_vinfo)
 {
   switch (node->simdclone->vecsize_mangle)
     {
     case 'n':
       if (!TARGET_SIMD)
 	return -1;
+      if (STMT_VINFO_VECTYPE (stmt_vinfo)
+	  && aarch64_sve_mode_p (TYPE_MODE (STMT_VINFO_VECTYPE (stmt_vinfo))))
+	return -1;
       return 0;
     default:
       gcc_unreachable ();
diff --git a/gcc/config/gcn/gcn.cc b/gcc/config/gcn/gcn.cc
index e80de2ce056..c48b212d9e6 100644
--- a/gcc/config/gcn/gcn.cc
+++ b/gcc/config/gcn/gcn.cc
@@ -5658,7 +5658,8 @@ gcn_simd_clone_adjust (struct cgraph_node *ARG_UNUSED (node))
 /* Implement TARGET_SIMD_CLONE_USABLE.  */
 
 static int
-gcn_simd_clone_usable (struct cgraph_node *ARG_UNUSED (node))
+gcn_simd_clone_usable (struct cgraph_node *ARG_UNUSED (node),
+		       stmt_vec_info ARG_UNUSED (stmt_vinfo))
 {
   /* We don't need to do anything here because
      gcn_simd_clone_compute_vecsize_and_simdlen currently only returns one
diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc
index b3e7c74846e..63e6b9d2643 100644
--- a/gcc/config/i386/i386.cc
+++ b/gcc/config/i386/i386.cc
@@ -25193,7 +25193,8 @@ ix86_simd_clone_compute_vecsize_and_simdlen (struct cgraph_node *node,
    slightly less desirable, etc.).  */
 
 static int
-ix86_simd_clone_usable (struct cgraph_node *node)
+ix86_simd_clone_usable (struct cgraph_node *node,
+			stmt_vec_info ARG_UNUSED (stmt_vinfo))
 {
   switch (node->simdclone->vecsize_mangle)
     {
diff --git a/gcc/target.def b/gcc/target.def
index fdad7bbc93e..4fade9c4eec 100644
--- a/gcc/target.def
+++ b/gcc/target.def
@@ -1648,7 +1648,7 @@ DEFHOOK
 in vectorized loops in current function, or non-negative number if it is\n\
 usable.  In that case, the smaller the number is, the more desirable it is\n\
 to use it.",
-int, (struct cgraph_node *), NULL)
+int, (struct cgraph_node *, _stmt_vec_info *), NULL)
 
 HOOK_VECTOR_END (simd_clone)
 
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index 1dbe1115da4..da02082c034 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -4074,7 +4074,7 @@ vectorizable_simd_clone_call (vec_info *vinfo, stmt_vec_info stmt_info,
 	  this_badness += floor_log2 (num_calls) * 4096;
 	if (n->simdclone->inbranch)
 	  this_badness += 8192;
-	int target_badness = targetm.simd_clone.usable (n);
+	int target_badness = targetm.simd_clone.usable (n, stmt_info);
 	if (target_badness < 0)
 	  continue;
 	this_badness += target_badness * 512;