From 37f49b204d501327d0867b3e8a3f01b9445fb9bd Mon Sep 17 00:00:00 2001
From: Kwok Cheung Yeung <kcy@codesourcery.com>
Date: Tue, 8 Nov 2022 11:59:58 +0000
Subject: [PATCH] amdgcn: Add builtins for vectorized native versions of abs,
 floorf and floor

2022-11-08  Kwok Cheung Yeung  <kcy@codesourcery.com>

	gcc/
	* config/gcn/gcn-builtins.def (FABSV, FLOORVF, FLOORV): New builtins.
	* config/gcn/gcn.cc (gcn_expand_builtin_1): Expand GCN_BUILTIN_FABSV,
	GCN_BUILTIN_FLOORVF and GCN_BUILTIN_FLOORV.

	gcc/testsuite/
	* gcc.target/gcn/math-builtins-1.c: New test.
---
 gcc/config/gcn/gcn-builtins.def               | 15 +++++++++
 gcc/config/gcn/gcn.cc                         | 33 +++++++++++++++++++
 .../gcc.target/gcn/math-builtins-1.c          | 33 +++++++++++++++++++
 3 files changed, 81 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/gcn/math-builtins-1.c

diff --git a/gcc/config/gcn/gcn-builtins.def b/gcc/config/gcn/gcn-builtins.def
index 27691909925..c50777bd3b0 100644
--- a/gcc/config/gcn/gcn-builtins.def
+++ b/gcc/config/gcn/gcn-builtins.def
@@ -64,6 +64,21 @@ DEF_BUILTIN (FABSVF, 3 /*CODE_FOR_fabsvf */,
 	     _A2 (GCN_BTI_V64SF, GCN_BTI_V64SF),
 	     gcn_expand_builtin_1)
 
+DEF_BUILTIN (FABSV, 3 /*CODE_FOR_fabsv */,
+	     "fabsv", B_INSN,
+	     _A2 (GCN_BTI_V64DF, GCN_BTI_V64DF),
+	     gcn_expand_builtin_1)
+
+DEF_BUILTIN (FLOORVF, 3 /*CODE_FOR_floorvf */,
+	     "floorvf", B_INSN,
+	     _A2 (GCN_BTI_V64SF, GCN_BTI_V64SF),
+	     gcn_expand_builtin_1)
+
+DEF_BUILTIN (FLOORV, 3 /*CODE_FOR_floorv */,
+	     "floorv", B_INSN,
+	     _A2 (GCN_BTI_V64DF, GCN_BTI_V64DF),
+	     gcn_expand_builtin_1)
+
 DEF_BUILTIN (LDEXPVF, 3 /*CODE_FOR_ldexpvf */,
 	     "ldexpvf", B_INSN,
 	     _A3 (GCN_BTI_V64SF, GCN_BTI_V64SF, GCN_BTI_V64SI),
diff --git a/gcc/config/gcn/gcn.cc b/gcc/config/gcn/gcn.cc
index 1996115a686..9c5e3419748 100644
--- a/gcc/config/gcn/gcn.cc
+++ b/gcc/config/gcn/gcn.cc
@@ -4329,6 +4329,39 @@ gcn_expand_builtin_1 (tree exp, rtx target, rtx /*subtarget */ ,
 	emit_insn (gen_absv64sf2 (target, arg));
 	return target;
       }
+    case GCN_BUILTIN_FABSV:
+      {
+	if (ignore)
+	  return target;
+	rtx arg = force_reg (V64DFmode,
+			     expand_expr (CALL_EXPR_ARG (exp, 0), NULL_RTX,
+					  V64DFmode,
+					  EXPAND_NORMAL));
+	emit_insn (gen_absv64df2 (target, arg));
+	return target;
+      }
+    case GCN_BUILTIN_FLOORVF:
+      {
+	if (ignore)
+	  return target;
+	rtx arg = force_reg (V64SFmode,
+			     expand_expr (CALL_EXPR_ARG (exp, 0), NULL_RTX,
+					  V64SFmode,
+					  EXPAND_NORMAL));
+	emit_insn (gen_floorv64sf2 (target, arg));
+	return target;
+      }
+    case GCN_BUILTIN_FLOORV:
+      {
+	if (ignore)
+	  return target;
+	rtx arg = force_reg (V64DFmode,
+			     expand_expr (CALL_EXPR_ARG (exp, 0), NULL_RTX,
+					  V64DFmode,
+					  EXPAND_NORMAL));
+	emit_insn (gen_floorv64df2 (target, arg));
+	return target;
+      }
     case GCN_BUILTIN_LDEXPVF:
       {
 	if (ignore)
diff --git a/gcc/testsuite/gcc.target/gcn/math-builtins-1.c b/gcc/testsuite/gcc.target/gcn/math-builtins-1.c
new file mode 100644
index 00000000000..e1aadfb40d9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/gcn/math-builtins-1.c
@@ -0,0 +1,33 @@
+/* { dg-do compile } */
+/* { dg-options "-O1" } */
+
+typedef float v64sf __attribute__ ((vector_size (256)));
+typedef double v64df __attribute__ ((vector_size (512)));
+typedef int v64si __attribute__ ((vector_size (256)));
+typedef long v64di __attribute__ ((vector_size (512)));
+
+v64sf f (v64sf _x, v64si _y)
+{
+  v64sf x = _x;
+  v64si y = _y;
+  x = __builtin_gcn_fabsvf (x); /* { dg-final { scan-assembler "v_add_f32\\s+v\[0-9\]+, 0, |v\[0-9\]+|" } } */
+  x = __builtin_gcn_floorvf (x); /* { dg-final { scan-assembler "v_floor_f32\\s+v\[0-9\]+, v\[0-9\]+" } }*/
+  x = __builtin_gcn_frexpvf_mant (x); /* { dg-final { scan-assembler "v_frexp_mant_f32\\s+v\[0-9\]+, v\[0-9\]+" } }*/
+  y = __builtin_gcn_frexpvf_exp (x); /* { dg-final { scan-assembler "v_frexp_exp_i32_f32\\s+v\[0-9\]+, v\[0-9\]+" } }*/
+  x = __builtin_gcn_ldexpvf (x, y); /* { dg-final { scan-assembler "v_ldexp_f32\\s+v\[0-9\]+, v\[0-9\]+, v\[0-9\]+" } }*/
+
+  return x;
+}
+
+v64df g (v64df _x, v64si _y)
+{
+  v64df x = _x;
+  v64si y = _y;
+  x = __builtin_gcn_fabsv (x); /* { dg-final { scan-assembler "v_add_f64\\s+v\\\[\[0-9\]+:\[0-9]+\\\], 0, |v\\\[\[0-9\]+:\[0-9\]+\\\]|" } } */
+  x = __builtin_gcn_floorv (x); /* { dg-final { scan-assembler "v_floor_f64\\s+v\\\[\[0-9\]+:\[0-9]+\\\], v\\\[\[0-9\]+:\[0-9]+\\\]" } }*/
+  x = __builtin_gcn_frexpv_mant (x); /* { dg-final { scan-assembler "v_frexp_mant_f64\\s+v\\\[\[0-9\]+:\[0-9]+\\\], v\\\[\[0-9\]+:\[0-9]+\\\]" } }*/
+  y = __builtin_gcn_frexpv_exp (x); /* { dg-final { scan-assembler "v_frexp_exp_i32_f64\\s+v\[0-9\]+, v\\\[\[0-9\]+:\[0-9]+\\\]" } }*/
+  x = __builtin_gcn_ldexpv (x, y); /* { dg-final { scan-assembler "v_ldexp_f64\\s+v\\\[\[0-9\]+:\[0-9]+\\\], v\\\[\[0-9\]+:\[0-9]+\\\], v\[0-9\]+" } }*/
+
+  return x;
+}
-- 
2.25.1