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From: "Andre Vieira (lists)" <andre.simoesdiasvieira@arm.com>
To: Richard Biener <rguenther@suse.de>
Cc: gcc-patches@gcc.gnu.org,
	Richard Sandiford <richard.sandiford@arm.com>,
	"jakub@redhat.com" <jakub@redhat.com>
Subject: Re: [Patch 3/8] vect: Fix vect_get_smallest_scalar_type for simd clones
Date: Wed, 18 Oct 2023 15:40:48 +0100	[thread overview]
Message-ID: <8f284b52-24b7-4304-a4e3-c9799b0ddca5@arm.com> (raw)
In-Reply-To: <nycvar.YFH.7.77.849.2308301253320.22006@jbgna.fhfr.qr>

[-- Attachment #1: Type: text/plain, Size: 1712 bytes --]

Made it a local function and changed prototype according to comments.

Is this OK?

  gcc/ChangeLog:
  	* tree-vect-data-refs.cc (vect_get_smallest_scalar_type): Special
  	case
  	simd clone calls and only use types that are mapped to vectors.
         (simd_clone_call_p): New helper function.
  	
On 30/08/2023 13:54, Richard Biener wrote:
> On Wed, 30 Aug 2023, Andre Vieira (lists) wrote:
> 
>> The vect_get_smallest_scalar_type helper function was using any argument to a
>> simd clone call when trying to determine the smallest scalar type that would
>> be vectorized.  This included the function pointer type in a MASK_CALL for
>> instance, and would result in the wrong type being selected.  Instead this
>> patch special cases simd_clone_call's and uses only scalar types of the
>> original function that get transformed into vector types.
> 
> Looks sensible.
> 
> +bool
> +simd_clone_call_p (gimple *stmt, cgraph_node **out_node)
> 
> you could return the cgraph_node * or NULL here.  Are you going to
> use the function elsewhere?  Otherwise put it in the same TU as
> the only use please and avoid exporting it.
> 
> Richard.
> 
>> gcc/ChangeLog:
>>
>> 	* tree-vect-data-refs.cci (vect_get_smallest_scalar_type): Special
>> 	case
>> 	simd clone calls and only use types that are mapped to vectors.
>> 	* tree-vect-stmts.cc (simd_clone_call_p): New helper function.
>> 	* tree-vectorizer.h (simd_clone_call_p): Declare new function.
>>
>> gcc/testsuite/ChangeLog:
>>
>> 	* gcc.dg/vect/vect-simd-clone-16f.c: Remove unnecessary differentation
>> 	between targets with different pointer sizes.
>> 	* gcc.dg/vect/vect-simd-clone-17f.c: Likewise.
>> 	* gcc.dg/vect/vect-simd-clone-18f.c: Likewise.
>>
> 

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diff --git a/gcc/testsuite/gcc.dg/vect/vect-simd-clone-16f.c b/gcc/testsuite/gcc.dg/vect/vect-simd-clone-16f.c
index 574698d3e133ecb8700e698fa42a6b05dd6b8a18..7cd29e894d0502a59fadfe67db2db383133022d3 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-simd-clone-16f.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-simd-clone-16f.c
@@ -7,9 +7,8 @@
 #include "vect-simd-clone-16.c"
 
 /* Ensure the the in-branch simd clones are used on targets that support them.
-   Some targets use pairs of vectors and do twice the calls.  */
-/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 2 "vect" { target { ! { { i?86-*-* x86_64-*-* } && { ! lp64 } } } } } } */
-/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 4 "vect" { target { { i?86*-*-* x86_64-*-* } && { ! lp64 } } } } } */
+ */
+/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 2 "vect" } } */
 
 /* The LTO test produces two dump files and we scan the wrong one.  */
 /* { dg-skip-if "" { *-*-* } { "-flto" } { "" } } */
diff --git a/gcc/testsuite/gcc.dg/vect/vect-simd-clone-17f.c b/gcc/testsuite/gcc.dg/vect/vect-simd-clone-17f.c
index 8bb6d19301a67a3eebce522daaf7d54d88f708d7..177521dc44531479fca1f1a1a0f2010f30fa3fb5 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-simd-clone-17f.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-simd-clone-17f.c
@@ -7,9 +7,8 @@
 #include "vect-simd-clone-17.c"
 
 /* Ensure the the in-branch simd clones are used on targets that support them.
-   Some targets use pairs of vectors and do twice the calls.  */
-/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 2 "vect" { target { ! { { i?86-*-* x86_64-*-* } && { ! lp64 } } } } } } */
-/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 4 "vect" { target { { i?86*-*-* x86_64-*-* } && { ! lp64 } } } } } */
+ */
+/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 2 "vect" } } */
 
 /* The LTO test produces two dump files and we scan the wrong one.  */
 /* { dg-skip-if "" { *-*-* } { "-flto" } { "" } } */
diff --git a/gcc/testsuite/gcc.dg/vect/vect-simd-clone-18f.c b/gcc/testsuite/gcc.dg/vect/vect-simd-clone-18f.c
index d34f23f4db8e9c237558cc22fe66b7e02b9e6c20..4dd51381d73c0c7c8ec812f24e5054df038059c5 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-simd-clone-18f.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-simd-clone-18f.c
@@ -7,9 +7,8 @@
 #include "vect-simd-clone-18.c"
 
 /* Ensure the the in-branch simd clones are used on targets that support them.
-   Some targets use pairs of vectors and do twice the calls.  */
-/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 2 "vect" { target { ! { { i?86-*-* x86_64-*-* } && { ! lp64 } } } } } } */
-/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 4 "vect" { target { { i?86*-*-* x86_64-*-* } && { ! lp64 } } } } } */
+ */
+/* { dg-final { scan-tree-dump-times {[\n\r] [^\n]* = foo\.simdclone} 2 "vect" } } */
 
 /* The LTO test produces two dump files and we scan the wrong one.  */
 /* { dg-skip-if "" { *-*-* } { "-flto" } { "" } } */
diff --git a/gcc/tree-vect-data-refs.cc b/gcc/tree-vect-data-refs.cc
index 40ab568fe355964b878d770010aa9eeaef63eeac..106d46e68910df94e806433e1cd841894a86d062 100644
--- a/gcc/tree-vect-data-refs.cc
+++ b/gcc/tree-vect-data-refs.cc
@@ -97,6 +97,34 @@ vect_lanes_optab_supported_p (const char *name, convert_optab optab,
   return true;
 }
 
+/* Helper function to identify a simd clone call.  If this is a call to a
+   function with simd clones then return the corresponding cgraph_node,
+   otherwise return NULL.  */
+
+static cgraph_node*
+simd_clone_call_p (gimple *stmt)
+{
+  gcall *call = dyn_cast <gcall *> (stmt);
+  if (!call)
+    return NULL;
+
+  tree fndecl = NULL_TREE;
+  if (gimple_call_internal_p (call, IFN_MASK_CALL))
+    fndecl = TREE_OPERAND (gimple_call_arg (stmt, 0), 0);
+  else
+    fndecl = gimple_call_fndecl (stmt);
+
+  if (fndecl == NULL_TREE)
+    return NULL;
+
+  cgraph_node *node = cgraph_node::get (fndecl);
+  if (node && node->simd_clones != NULL)
+    return node;
+
+  return NULL;
+}
+
+
 
 /* Return the smallest scalar part of STMT_INFO.
    This is used to determine the vectype of the stmt.  We generally set the
@@ -145,6 +173,23 @@ vect_get_smallest_scalar_type (stmt_vec_info stmt_info, tree scalar_type)
 	    scalar_type = rhs_type;
 	}
     }
+  else if (cgraph_node *node = simd_clone_call_p (stmt_info->stmt))
+    {
+      auto clone = node->simd_clones->simdclone;
+      for (unsigned int i = 0; i < clone->nargs; ++i)
+	{
+	  if (clone->args[i].arg_type == SIMD_CLONE_ARG_TYPE_VECTOR)
+	    {
+	      tree arg_scalar_type = TREE_TYPE (clone->args[i].vector_type);
+	      rhs = TREE_INT_CST_LOW (TYPE_SIZE_UNIT (arg_scalar_type));
+	      if (rhs < lhs)
+		{
+		  scalar_type = arg_scalar_type;
+		  lhs = rhs;
+		}
+	    }
+	}
+    }
   else if (gcall *call = dyn_cast <gcall *> (stmt_info->stmt))
     {
       unsigned int i = 0;

  reply	other threads:[~2023-10-18 14:40 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-30  8:49 aarch64, vect, omp: Add SVE support for simd clones [PR 96342] Andre Vieira (lists)
2023-08-30  9:06 ` [PATCH 1/8] parloops: Copy target and optimizations when creating a function clone Andre Vieira (lists)
2023-08-30 12:31   ` Richard Biener
2023-10-18 14:40     ` Andre Vieira (lists)
2023-08-30  9:08 ` [Patch 2/8] parloops: Allow poly nit and bound Andre Vieira (lists)
2023-08-30 12:32   ` Richard Biener
2023-10-18 14:40     ` Andre Vieira (lists)
2023-08-30  9:10 ` [Patch 3/8] vect: Fix vect_get_smallest_scalar_type for simd clones Andre Vieira (lists)
2023-08-30 12:54   ` Richard Biener
2023-10-18 14:40     ` Andre Vieira (lists) [this message]
2023-10-19 12:07       ` Richard Biener
2023-08-30  9:11 ` [PATCH 4/8] vect: don't allow fully masked loops with non-masked simd clones [PR 110485] Andre Vieira (lists)
2023-08-30 12:54   ` Richard Biener
2023-10-18 14:40     ` Andre Vieira (lists)
2023-10-19 12:06       ` Richard Biener
2023-08-30  9:13 ` [PATCH 5/8] vect: Use inbranch simdclones in masked loops Andre Vieira (lists)
2023-10-18 14:41   ` Andre Vieira (lists)
2023-10-19 12:17     ` Richard Biener
2023-08-30  9:14 ` [PATCH 6/8] vect: Add vector_mode paramater to simd_clone_usable Andre Vieira (lists)
2023-08-30  9:17   ` Andre Vieira (lists)
2023-08-30 13:01   ` Richard Biener
2023-08-30 15:02     ` Andre Vieira (lists)
2023-08-31  6:39       ` Richard Biener
2023-09-28 15:57         ` Andre Vieira (lists)
2023-08-30  9:17 ` [PATCH7/8] vect: Add TARGET_SIMD_CLONE_ADJUST_RET_OR_PARAM Andre Vieira (lists)
2023-08-30 13:04   ` Richard Biener
2023-10-04 10:32     ` Andre Vieira (lists)
2023-10-04 10:41       ` Richard Biener
2023-10-04 12:40         ` Andre Vieira (lists)
2023-10-18 14:41           ` [PATCH6/8] omp: Reorder call for TARGET_SIMD_CLONE_ADJUST (was Re: [PATCH7/8] vect: Add TARGET_SIMD_CLONE_ADJUST_RET_OR_PARAM) Andre Vieira (lists)
2023-10-30 18:34             ` Andre Vieira (lists)
2023-10-31  7:59             ` Richard Biener
2023-12-08 10:35               ` Jakub Jelinek
2023-08-30  9:19 ` [PATCH 8/8] aarch64: Add SVE support for simd clones [PR 96342] Andre Vieira (lists)
2023-10-18 14:41   ` Andre Vieira (lists)
2023-11-29 17:01     ` Richard Sandiford
2023-12-01 16:39       ` Andre Vieira (lists)
2023-10-18 14:40 ` aarch64, vect, omp: " Andre Vieira (lists)
2023-10-18 14:41 ` [PATCH 0/8] omp: Replace simd_clone_subparts with TYPE_VECTOR_SUBPARTS Andre Vieira (lists)
2023-10-19  7:10   ` Richard Biener

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