AMDGPU: Handle vectors in copysign sign type combine (#142157)

This avoids some ugly codegen on pre-16-bit instruction targets now
from annoying f16 legalization effects. This also avoids regressions
on newer targets in a future patch.

Author: arsenm

llvm/lib/Target/AMDGPU/SIISelLowering.cpp

@@ -11737,9 +11737,10 @@ SDValue SITargetLowering::performFCopySignCombine(SDNode *N,
   // lower half with a copy.
   // fcopysign f64:x, _:y -> x.lo32, (fcopysign (f32 x.hi32), _:y)
   EVT MagVT = MagnitudeOp.getValueType();
-  if (MagVT.getScalarType() == MVT::f64) {
-    unsigned NumElts = MagVT.isVector() ? MagVT.getVectorNumElements() : 1;
 
+  unsigned NumElts = MagVT.isVector() ? MagVT.getVectorNumElements() : 1;
+
+  if (MagVT.getScalarType() == MVT::f64) {
     EVT F32VT = MagVT.isVector()
                     ? EVT::getVectorVT(*DAG.getContext(), MVT::f32, 2 * NumElts)
                     : MVT::v2f32;
@@ -11777,21 +11778,39 @@ SDValue SITargetLowering::performFCopySignCombine(SDNode *N,
     return DAG.getNode(ISD::BUILD_VECTOR, DL, MagVT, NewElts);
   }
 
-  if (SignVT != MVT::f64)
+  if (SignVT.getScalarType() != MVT::f64)
     return SDValue();
 
   // Reduce width of sign operand, we only need the highest bit.
   //
   // fcopysign f64:x, f64:y ->
   //   fcopysign f64:x, (extract_vector_elt (bitcast f64:y to v2f32), 1)
   // TODO: In some cases it might make sense to go all the way to f16.
-  SDValue SignAsVector = DAG.getNode(ISD::BITCAST, DL, MVT::v2f32, SignOp);
-  SDValue SignAsF32 =
-      DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, MVT::f32, SignAsVector,
-                  DAG.getConstant(1, DL, MVT::i32));
+
+  EVT F32VT = MagVT.isVector()
+                  ? EVT::getVectorVT(*DAG.getContext(), MVT::f32, 2 * NumElts)
+                  : MVT::v2f32;
+
+  SDValue SignAsVector = DAG.getNode(ISD::BITCAST, DL, F32VT, SignOp);
+
+  SmallVector<SDValue, 8> F32Signs;
+  for (unsigned I = 0; I != NumElts; ++I) {
+    // Take sign from odd elements of cast vector
+    SDValue SignAsF32 =
+        DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, MVT::f32, SignAsVector,
+                    DAG.getConstant(2 * I + 1, DL, MVT::i32));
+    F32Signs.push_back(SignAsF32);
+  }
+
+  SDValue NewSign =
+      NumElts == 1
+          ? F32Signs.back()
+          : DAG.getNode(ISD::BUILD_VECTOR, DL,
+                        EVT::getVectorVT(*DAG.getContext(), MVT::f32, NumElts),
+                        F32Signs);
 
   return DAG.getNode(ISD::FCOPYSIGN, DL, N->getValueType(0), N->getOperand(0),
-                     SignAsF32);
+                     NewSign);
 }
 
 // (shl (add x, c1), c2) -> add (shl x, c2), (shl c1, c2)

llvm/test/CodeGen/AMDGPU/fcopysign.bf16.ll

@@ -4677,37 +4677,33 @@ define <2 x bfloat> @v_copysign_out_v2bf16_mag_v2bf16_sign_v2f64(<2 x bfloat> %m
 ; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GCN-NEXT:    v_mul_f32_e32 v0, 1.0, v0
 ; GCN-NEXT:    v_mul_f32_e32 v1, 1.0, v1
-; GCN-NEXT:    v_cvt_f32_f64_e32 v2, v[2:3]
-; GCN-NEXT:    v_cvt_f32_f64_e32 v3, v[4:5]
+; GCN-NEXT:    v_and_b32_e32 v2, 0x80000000, v5
+; GCN-NEXT:    v_and_b32_e32 v3, 0x80000000, v3
 ; GCN-NEXT:    v_lshrrev_b32_e32 v2, 16, v2
-; GCN-NEXT:    v_lshrrev_b32_e32 v3, 16, v3
 ; GCN-NEXT:    v_bfe_u32 v1, v1, 16, 15
+; GCN-NEXT:    v_lshrrev_b32_e32 v3, 16, v3
 ; GCN-NEXT:    v_bfe_u32 v0, v0, 16, 15
-; GCN-NEXT:    v_and_b32_e32 v3, 0x8000, v3
-; GCN-NEXT:    v_and_b32_e32 v2, 0x8000, v2
-; GCN-NEXT:    v_or_b32_e32 v1, v1, v3
-; GCN-NEXT:    v_or_b32_e32 v0, v0, v2
-; GCN-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
+; GCN-NEXT:    v_or_b32_e32 v1, v1, v2
+; GCN-NEXT:    v_or_b32_e32 v0, v0, v3
 ; GCN-NEXT:    v_lshlrev_b32_e32 v1, 16, v1
+; GCN-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GCN-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX7-LABEL: v_copysign_out_v2bf16_mag_v2bf16_sign_v2f64:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v2, v[2:3]
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v3, v[4:5]
-; GFX7-NEXT:    v_mul_f32_e32 v0, 1.0, v0
 ; GFX7-NEXT:    v_mul_f32_e32 v1, 1.0, v1
+; GFX7-NEXT:    v_and_b32_e32 v2, 0x80000000, v5
 ; GFX7-NEXT:    v_lshrrev_b32_e32 v2, 16, v2
-; GFX7-NEXT:    v_lshrrev_b32_e32 v3, 16, v3
-; GFX7-NEXT:    v_and_b32_e32 v3, 0x8000, v3
 ; GFX7-NEXT:    v_bfe_u32 v1, v1, 16, 15
-; GFX7-NEXT:    v_and_b32_e32 v2, 0x8000, v2
+; GFX7-NEXT:    v_mul_f32_e32 v0, 1.0, v0
+; GFX7-NEXT:    v_or_b32_e32 v1, v1, v2
+; GFX7-NEXT:    v_and_b32_e32 v2, 0x80000000, v3
+; GFX7-NEXT:    v_lshrrev_b32_e32 v2, 16, v2
 ; GFX7-NEXT:    v_bfe_u32 v0, v0, 16, 15
-; GFX7-NEXT:    v_or_b32_e32 v1, v1, v3
 ; GFX7-NEXT:    v_or_b32_e32 v0, v0, v2
-; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GFX7-NEXT:    v_lshlrev_b32_e32 v1, 16, v1
+; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GFX7-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX8-LABEL: v_copysign_out_v2bf16_mag_v2bf16_sign_v2f64:
@@ -5585,35 +5581,31 @@ define amdgpu_ps i32 @s_copysign_out_v2bf16_mag_v2bf16_sign_v2f64(<2 x bfloat> i
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    v_mul_f32_e64 v0, 1.0, s1
 ; GCN-NEXT:    v_mul_f32_e64 v1, 1.0, s0
-; GCN-NEXT:    v_cvt_f32_f64_e32 v2, s[4:5]
-; GCN-NEXT:    v_cvt_f32_f64_e32 v3, s[2:3]
-; GCN-NEXT:    v_lshrrev_b32_e32 v2, 16, v2
-; GCN-NEXT:    v_lshrrev_b32_e32 v3, 16, v3
+; GCN-NEXT:    s_and_b32 s0, s3, 0x80000000
+; GCN-NEXT:    s_and_b32 s1, s5, 0x80000000
+; GCN-NEXT:    s_lshr_b32 s0, s0, 16
 ; GCN-NEXT:    v_bfe_u32 v1, v1, 16, 15
+; GCN-NEXT:    s_lshr_b32 s1, s1, 16
 ; GCN-NEXT:    v_bfe_u32 v0, v0, 16, 15
-; GCN-NEXT:    v_and_b32_e32 v3, 0x8000, v3
-; GCN-NEXT:    v_and_b32_e32 v2, 0x8000, v2
-; GCN-NEXT:    v_or_b32_e32 v1, v1, v3
-; GCN-NEXT:    v_or_b32_e32 v0, v0, v2
+; GCN-NEXT:    v_or_b32_e32 v1, s0, v1
+; GCN-NEXT:    v_or_b32_e32 v0, s1, v0
 ; GCN-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GCN-NEXT:    v_or_b32_e32 v0, v1, v0
 ; GCN-NEXT:    v_readfirstlane_b32 s0, v0
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_copysign_out_v2bf16_mag_v2bf16_sign_v2f64:
 ; GFX7:       ; %bb.0:
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v0, s[4:5]
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v1, s[2:3]
-; GFX7-NEXT:    v_mul_f32_e64 v2, 1.0, s1
-; GFX7-NEXT:    v_mul_f32_e64 v3, 1.0, s0
-; GFX7-NEXT:    v_lshrrev_b32_e32 v0, 16, v0
-; GFX7-NEXT:    v_lshrrev_b32_e32 v1, 16, v1
-; GFX7-NEXT:    v_and_b32_e32 v0, 0x8000, v0
-; GFX7-NEXT:    v_bfe_u32 v2, v2, 16, 15
-; GFX7-NEXT:    v_and_b32_e32 v1, 0x8000, v1
-; GFX7-NEXT:    v_bfe_u32 v3, v3, 16, 15
-; GFX7-NEXT:    v_or_b32_e32 v0, v2, v0
-; GFX7-NEXT:    v_or_b32_e32 v1, v3, v1
+; GFX7-NEXT:    v_mul_f32_e64 v1, 1.0, s0
+; GFX7-NEXT:    s_and_b32 s0, s3, 0x80000000
+; GFX7-NEXT:    s_lshr_b32 s0, s0, 16
+; GFX7-NEXT:    v_bfe_u32 v1, v1, 16, 15
+; GFX7-NEXT:    v_mul_f32_e64 v0, 1.0, s1
+; GFX7-NEXT:    v_or_b32_e32 v1, s0, v1
+; GFX7-NEXT:    s_and_b32 s0, s5, 0x80000000
+; GFX7-NEXT:    s_lshr_b32 s0, s0, 16
+; GFX7-NEXT:    v_bfe_u32 v0, v0, 16, 15
+; GFX7-NEXT:    v_or_b32_e32 v0, s0, v0
 ; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GFX7-NEXT:    v_or_b32_e32 v0, v1, v0
 ; GFX7-NEXT:    v_readfirstlane_b32 s0, v0
@@ -6682,51 +6674,45 @@ define <3 x bfloat> @v_copysign_out_v3bf16_mag_v3bf16_sign_v3f64(<3 x bfloat> %m
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GCN-NEXT:    v_mul_f32_e32 v0, 1.0, v0
-; GCN-NEXT:    v_mul_f32_e32 v1, 1.0, v1
 ; GCN-NEXT:    v_mul_f32_e32 v2, 1.0, v2
-; GCN-NEXT:    v_cvt_f32_f64_e32 v3, v[3:4]
-; GCN-NEXT:    v_cvt_f32_f64_e32 v4, v[5:6]
-; GCN-NEXT:    v_cvt_f32_f64_e32 v5, v[7:8]
+; GCN-NEXT:    v_mul_f32_e32 v1, 1.0, v1
+; GCN-NEXT:    v_and_b32_e32 v3, 0x80000000, v6
+; GCN-NEXT:    v_and_b32_e32 v5, 0x80000000, v8
+; GCN-NEXT:    v_and_b32_e32 v4, 0x80000000, v4
 ; GCN-NEXT:    v_lshrrev_b32_e32 v3, 16, v3
-; GCN-NEXT:    v_lshrrev_b32_e32 v4, 16, v4
+; GCN-NEXT:    v_bfe_u32 v1, v1, 16, 15
 ; GCN-NEXT:    v_lshrrev_b32_e32 v5, 16, v5
 ; GCN-NEXT:    v_bfe_u32 v2, v2, 16, 15
-; GCN-NEXT:    v_bfe_u32 v1, v1, 16, 15
+; GCN-NEXT:    v_lshrrev_b32_e32 v4, 16, v4
 ; GCN-NEXT:    v_bfe_u32 v0, v0, 16, 15
-; GCN-NEXT:    v_and_b32_e32 v5, 0x8000, v5
-; GCN-NEXT:    v_and_b32_e32 v4, 0x8000, v4
-; GCN-NEXT:    v_and_b32_e32 v3, 0x8000, v3
+; GCN-NEXT:    v_or_b32_e32 v1, v1, v3
 ; GCN-NEXT:    v_or_b32_e32 v2, v2, v5
-; GCN-NEXT:    v_or_b32_e32 v1, v1, v4
-; GCN-NEXT:    v_or_b32_e32 v0, v0, v3
-; GCN-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
+; GCN-NEXT:    v_or_b32_e32 v0, v0, v4
 ; GCN-NEXT:    v_lshlrev_b32_e32 v1, 16, v1
+; GCN-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GCN-NEXT:    v_lshlrev_b32_e32 v2, 16, v2
 ; GCN-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX7-LABEL: v_copysign_out_v3bf16_mag_v3bf16_sign_v3f64:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v3, v[3:4]
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v4, v[5:6]
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v5, v[7:8]
-; GFX7-NEXT:    v_mul_f32_e32 v0, 1.0, v0
 ; GFX7-NEXT:    v_mul_f32_e32 v1, 1.0, v1
+; GFX7-NEXT:    v_and_b32_e32 v3, 0x80000000, v6
+; GFX7-NEXT:    v_lshrrev_b32_e32 v3, 16, v3
+; GFX7-NEXT:    v_bfe_u32 v1, v1, 16, 15
 ; GFX7-NEXT:    v_mul_f32_e32 v2, 1.0, v2
+; GFX7-NEXT:    v_or_b32_e32 v1, v1, v3
+; GFX7-NEXT:    v_and_b32_e32 v3, 0x80000000, v8
 ; GFX7-NEXT:    v_lshrrev_b32_e32 v3, 16, v3
-; GFX7-NEXT:    v_lshrrev_b32_e32 v4, 16, v4
-; GFX7-NEXT:    v_lshrrev_b32_e32 v5, 16, v5
-; GFX7-NEXT:    v_and_b32_e32 v5, 0x8000, v5
 ; GFX7-NEXT:    v_bfe_u32 v2, v2, 16, 15
-; GFX7-NEXT:    v_and_b32_e32 v4, 0x8000, v4
-; GFX7-NEXT:    v_bfe_u32 v1, v1, 16, 15
-; GFX7-NEXT:    v_and_b32_e32 v3, 0x8000, v3
+; GFX7-NEXT:    v_mul_f32_e32 v0, 1.0, v0
+; GFX7-NEXT:    v_or_b32_e32 v2, v2, v3
+; GFX7-NEXT:    v_and_b32_e32 v3, 0x80000000, v4
+; GFX7-NEXT:    v_lshrrev_b32_e32 v3, 16, v3
 ; GFX7-NEXT:    v_bfe_u32 v0, v0, 16, 15
-; GFX7-NEXT:    v_or_b32_e32 v2, v2, v5
-; GFX7-NEXT:    v_or_b32_e32 v1, v1, v4
 ; GFX7-NEXT:    v_or_b32_e32 v0, v0, v3
-; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GFX7-NEXT:    v_lshlrev_b32_e32 v1, 16, v1
+; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GFX7-NEXT:    v_lshlrev_b32_e32 v2, 16, v2
 ; GFX7-NEXT:    s_setpc_b64 s[30:31]
 ;
@@ -8082,66 +8068,58 @@ define <4 x bfloat> @v_copysign_out_v4bf16_mag_v4bf16_sign_v4f64(<4 x bfloat> %m
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GCN-NEXT:    v_mul_f32_e32 v0, 1.0, v0
-; GCN-NEXT:    v_mul_f32_e32 v1, 1.0, v1
 ; GCN-NEXT:    v_mul_f32_e32 v2, 1.0, v2
 ; GCN-NEXT:    v_mul_f32_e32 v3, 1.0, v3
-; GCN-NEXT:    v_cvt_f32_f64_e32 v4, v[4:5]
-; GCN-NEXT:    v_cvt_f32_f64_e32 v5, v[6:7]
-; GCN-NEXT:    v_cvt_f32_f64_e32 v6, v[8:9]
-; GCN-NEXT:    v_cvt_f32_f64_e32 v7, v[10:11]
+; GCN-NEXT:    v_mul_f32_e32 v1, 1.0, v1
+; GCN-NEXT:    v_and_b32_e32 v4, 0x80000000, v7
+; GCN-NEXT:    v_and_b32_e32 v6, 0x80000000, v11
+; GCN-NEXT:    v_and_b32_e32 v7, 0x80000000, v9
+; GCN-NEXT:    v_and_b32_e32 v5, 0x80000000, v5
 ; GCN-NEXT:    v_lshrrev_b32_e32 v4, 16, v4
-; GCN-NEXT:    v_lshrrev_b32_e32 v5, 16, v5
+; GCN-NEXT:    v_bfe_u32 v1, v1, 16, 15
 ; GCN-NEXT:    v_lshrrev_b32_e32 v6, 16, v6
-; GCN-NEXT:    v_lshrrev_b32_e32 v7, 16, v7
 ; GCN-NEXT:    v_bfe_u32 v3, v3, 16, 15
+; GCN-NEXT:    v_lshrrev_b32_e32 v7, 16, v7
 ; GCN-NEXT:    v_bfe_u32 v2, v2, 16, 15
-; GCN-NEXT:    v_bfe_u32 v1, v1, 16, 15
+; GCN-NEXT:    v_lshrrev_b32_e32 v5, 16, v5
 ; GCN-NEXT:    v_bfe_u32 v0, v0, 16, 15
-; GCN-NEXT:    v_and_b32_e32 v7, 0x8000, v7
-; GCN-NEXT:    v_and_b32_e32 v6, 0x8000, v6
-; GCN-NEXT:    v_and_b32_e32 v5, 0x8000, v5
-; GCN-NEXT:    v_and_b32_e32 v4, 0x8000, v4
-; GCN-NEXT:    v_or_b32_e32 v3, v3, v7
-; GCN-NEXT:    v_or_b32_e32 v2, v2, v6
-; GCN-NEXT:    v_or_b32_e32 v1, v1, v5
-; GCN-NEXT:    v_or_b32_e32 v0, v0, v4
-; GCN-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
+; GCN-NEXT:    v_or_b32_e32 v1, v1, v4
+; GCN-NEXT:    v_or_b32_e32 v3, v3, v6
+; GCN-NEXT:    v_or_b32_e32 v2, v2, v7
+; GCN-NEXT:    v_or_b32_e32 v0, v0, v5
 ; GCN-NEXT:    v_lshlrev_b32_e32 v1, 16, v1
-; GCN-NEXT:    v_lshlrev_b32_e32 v2, 16, v2
 ; GCN-NEXT:    v_lshlrev_b32_e32 v3, 16, v3
+; GCN-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
+; GCN-NEXT:    v_lshlrev_b32_e32 v2, 16, v2
 ; GCN-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX7-LABEL: v_copysign_out_v4bf16_mag_v4bf16_sign_v4f64:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v4, v[4:5]
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v5, v[6:7]
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v6, v[8:9]
-; GFX7-NEXT:    v_cvt_f32_f64_e32 v7, v[10:11]
-; GFX7-NEXT:    v_mul_f32_e32 v0, 1.0, v0
 ; GFX7-NEXT:    v_mul_f32_e32 v1, 1.0, v1
-; GFX7-NEXT:    v_mul_f32_e32 v2, 1.0, v2
+; GFX7-NEXT:    v_and_b32_e32 v4, 0x80000000, v7
+; GFX7-NEXT:    v_lshrrev_b32_e32 v4, 16, v4
+; GFX7-NEXT:    v_bfe_u32 v1, v1, 16, 15
 ; GFX7-NEXT:    v_mul_f32_e32 v3, 1.0, v3
+; GFX7-NEXT:    v_or_b32_e32 v1, v1, v4
+; GFX7-NEXT:    v_and_b32_e32 v4, 0x80000000, v11
 ; GFX7-NEXT:    v_lshrrev_b32_e32 v4, 16, v4
-; GFX7-NEXT:    v_lshrrev_b32_e32 v5, 16, v5
-; GFX7-NEXT:    v_lshrrev_b32_e32 v6, 16, v6
-; GFX7-NEXT:    v_lshrrev_b32_e32 v7, 16, v7
-; GFX7-NEXT:    v_and_b32_e32 v7, 0x8000, v7
 ; GFX7-NEXT:    v_bfe_u32 v3, v3, 16, 15
-; GFX7-NEXT:    v_and_b32_e32 v6, 0x8000, v6
+; GFX7-NEXT:    v_mul_f32_e32 v2, 1.0, v2
+; GFX7-NEXT:    v_or_b32_e32 v3, v3, v4
+; GFX7-NEXT:    v_and_b32_e32 v4, 0x80000000, v9
+; GFX7-NEXT:    v_lshrrev_b32_e32 v4, 16, v4
 ; GFX7-NEXT:    v_bfe_u32 v2, v2, 16, 15
-; GFX7-NEXT:    v_and_b32_e32 v5, 0x8000, v5
-; GFX7-NEXT:    v_bfe_u32 v1, v1, 16, 15
-; GFX7-NEXT:    v_and_b32_e32 v4, 0x8000, v4
+; GFX7-NEXT:    v_mul_f32_e32 v0, 1.0, v0
+; GFX7-NEXT:    v_or_b32_e32 v2, v2, v4
+; GFX7-NEXT:    v_and_b32_e32 v4, 0x80000000, v5
+; GFX7-NEXT:    v_lshrrev_b32_e32 v4, 16, v4
 ; GFX7-NEXT:    v_bfe_u32 v0, v0, 16, 15
-; GFX7-NEXT:    v_or_b32_e32 v3, v3, v7
-; GFX7-NEXT:    v_or_b32_e32 v2, v2, v6
-; GFX7-NEXT:    v_or_b32_e32 v1, v1, v5
 ; GFX7-NEXT:    v_or_b32_e32 v0, v0, v4
-; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
 ; GFX7-NEXT:    v_lshlrev_b32_e32 v1, 16, v1
-; GFX7-NEXT:    v_lshlrev_b32_e32 v2, 16, v2
 ; GFX7-NEXT:    v_lshlrev_b32_e32 v3, 16, v3
+; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 16, v0
+; GFX7-NEXT:    v_lshlrev_b32_e32 v2, 16, v2
 ; GFX7-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX8-LABEL: v_copysign_out_v4bf16_mag_v4bf16_sign_v4f64: