From: Haochen Jiang <haochen.jiang@intel.com>
Date: Tue, 5 Jul 2022 06:12:18 +0000 (+0800)
Subject: i386: Handle memory operand for direct call to cvtps2pd in unpack
X-Git-Tag: basepoints/gcc-14~5637
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bf3695691f4fc964a3b1c8274a6949d844e3edff;p=thirdparty%2Fgcc.git

i386: Handle memory operand for direct call to cvtps2pd in unpack

gcc/ChangeLog:

	PR target/106180
	* config/i386/sse.md (sse2_cvtps2pd<mask_name>_1):
	Rename from *sse2_cvtps2pd<mask_name>_1.
	(vec_unpacks_lo_v4sf): Add handler for memory operand.

gcc/testsuite/ChangeLog:

	PR target/106180
	* g++.target/i386/pr106180-1.C: New test.
---

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 81d32a88785..a755d72eeed 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -9204,7 +9204,7 @@
    (set_attr "prefix" "maybe_vex")
    (set_attr "mode" "V2DF")])
 
-(define_insn "*sse2_cvtps2pd<mask_name>_1"
+(define_insn "sse2_cvtps2pd<mask_name>_1"
   [(set (match_operand:V2DF 0 "register_operand" "=v")
 	(float_extend:V2DF
 	  (match_operand:V2SF 1 "memory_operand" "m")))]
@@ -9266,7 +9266,15 @@
 	  (vec_select:V2SF
 	    (match_operand:V4SF 1 "vector_operand")
 	    (parallel [(const_int 0) (const_int 1)]))))]
-  "TARGET_SSE2")
+  "TARGET_SSE2"
+{
+  if (MEM_P (operands[1]))
+    {
+      operands[1] = adjust_address_nv (operands[1], V2SFmode, 0);
+      emit_insn (gen_sse2_cvtps2pd_1 (operands[0], operands[1]));
+      DONE;
+    }
+})
 
 (define_expand "vec_unpacks_lo_v8sf"
   [(set (match_operand:V4DF 0 "register_operand")
diff --git a/gcc/testsuite/g++.target/i386/pr106180-1.C b/gcc/testsuite/g++.target/i386/pr106180-1.C
new file mode 100644
index 00000000000..7f734536001
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/pr106180-1.C
@@ -0,0 +1,31 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -c -ffloat-store  -std=c++11" } */
+
+struct PointT 
+{
+  double x, y;
+};
+using PointF = PointT;
+
+template <int _Nm> struct __array_traits { typedef PointT _Type[_Nm]; };
+template <int _Nm> struct array
+{
+  typename __array_traits<_Nm>::_Type _M_elems;
+};
+
+float SampleGrid_low, SampleGrid_high;
+using QuadrilateralF = array<4>;
+struct PerspectiveTransform
+{
+  PerspectiveTransform (QuadrilateralF, QuadrilateralF);
+};
+
+void SampleGrid()
+{
+  PerspectiveTransform
+  {
+    { PointF {SampleGrid_high, SampleGrid_low},
+      SampleGrid_low, SampleGrid_high },
+    {}
+  };
+}