diff --git a/llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h b/llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
index 1597e79..1226ab3 100644
--- a/llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
+++ b/llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
@@ -674,6 +674,10 @@
   bool matchCombineFAddFpExtFMulToFMadOrFMAAggressive(MachineInstr &MI,
                                                       BuildFnTy &MatchInfo);
 
+  /// Transform (fsub (fmul x, y), z) -> (fma x, y, -z)
+  ///           (fsub (fmul x, y), z) -> (fmad x, y, -z)
+  bool matchCombineFSubFMulToFMadOrFMA(MachineInstr &MI, BuildFnTy &MatchInfo);
+
 private:
   /// Given a non-indexed load or store instruction \p MI, find an offset that
   /// can be usefully and legally folded into it as a post-indexing operation.
diff --git a/llvm/include/llvm/Target/GlobalISel/Combine.td b/llvm/include/llvm/Target/GlobalISel/Combine.td
index caee899..2badc09 100644
--- a/llvm/include/llvm/Target/GlobalISel/Combine.td
+++ b/llvm/include/llvm/Target/GlobalISel/Combine.td
@@ -801,6 +801,15 @@
                                                   *${root}, ${info}); }]),
   (apply [{ Helper.applyBuildFn(*${root}, ${info}); }])>;
 
+// Transform (fsub (fmul x, y), z) -> (fma x, y, -z)
+//                                 -> (fmad x, y, -z)
+def combine_fsub_fmul_to_fmad_or_fma: GICombineRule<
+  (defs root:$root, build_fn_matchinfo:$info),
+  (match (wip_match_opcode G_FSUB):$root,
+         [{ return Helper.matchCombineFSubFMulToFMadOrFMA(*${root},
+                                                          ${info}); }]),
+  (apply [{ Helper.applyBuildFn(*${root}, ${info}); }])>;
+
 // FIXME: These should use the custom predicate feature once it lands.
 def undef_combines : GICombineGroup<[undef_to_fp_zero, undef_to_int_zero,
                                      undef_to_negative_one,
@@ -835,7 +844,8 @@
 
 def fma_combines : GICombineGroup<[combine_fadd_fmul_to_fmad_or_fma,
   combine_fadd_fpext_fmul_to_fmad_or_fma, combine_fadd_fma_fmul_to_fmad_or_fma,
-  combine_fadd_fpext_fma_fmul_to_fmad_or_fma]>;
+  combine_fadd_fpext_fma_fmul_to_fmad_or_fma,
+  combine_fsub_fmul_to_fmad_or_fma]>;
 
 def all_combines : GICombineGroup<[trivial_combines, insert_vec_elt_combines,
     extract_vec_elt_combines, combines_for_extload,
diff --git a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
index 5973c13..502b07b 100644
--- a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
@@ -5147,6 +5147,56 @@
   return false;
 }
 
+bool CombinerHelper::matchCombineFSubFMulToFMadOrFMA(
+    MachineInstr &MI, std::function<void(MachineIRBuilder &)> &MatchInfo) {
+  assert(MI.getOpcode() == TargetOpcode::G_FSUB);
+
+  bool AllowFusionGlobally, HasFMAD, Aggressive;
+  if (!canCombineFMadOrFMA(MI, AllowFusionGlobally, HasFMAD, Aggressive))
+    return false;
+
+  MachineInstr *LHS = MRI.getVRegDef(MI.getOperand(1).getReg());
+  MachineInstr *RHS = MRI.getVRegDef(MI.getOperand(2).getReg());
+  LLT DstTy = MRI.getType(MI.getOperand(0).getReg());
+
+  // If we have two choices trying to fold (fadd (fmul u, v), (fmul x, y)),
+  // prefer to fold the multiply with fewer uses.
+  int FirstMulHasFewerUses = true;
+  if (isContractableFMul(*LHS, AllowFusionGlobally) &&
+      isContractableFMul(*RHS, AllowFusionGlobally) &&
+      hasMoreUses(*LHS, *RHS, MRI))
+    FirstMulHasFewerUses = false;
+
+  unsigned PreferredFusedOpcode =
+      HasFMAD ? TargetOpcode::G_FMAD : TargetOpcode::G_FMA;
+
+  // fold (fsub (fmul x, y), z) -> (fma x, y, -z)
+  if (FirstMulHasFewerUses &&
+      (isContractableFMul(*LHS, AllowFusionGlobally) &&
+       (Aggressive || MRI.hasOneNonDBGUse(LHS->getOperand(0).getReg())))) {
+    MatchInfo = [=, &MI](MachineIRBuilder &B) {
+      Register NegZ = B.buildFNeg(DstTy, RHS->getOperand(0).getReg()).getReg(0);
+      B.buildInstr(
+          PreferredFusedOpcode, {MI.getOperand(0).getReg()},
+          {LHS->getOperand(1).getReg(), LHS->getOperand(2).getReg(), NegZ});
+    };
+    return true;
+  }
+  // fold (fsub x, (fmul y, z)) -> (fma -y, z, x)
+  else if ((isContractableFMul(*RHS, AllowFusionGlobally) &&
+            (Aggressive || MRI.hasOneNonDBGUse(RHS->getOperand(0).getReg())))) {
+    MatchInfo = [=, &MI](MachineIRBuilder &B) {
+      Register NegY = B.buildFNeg(DstTy, RHS->getOperand(1).getReg()).getReg(0);
+      B.buildInstr(
+          PreferredFusedOpcode, {MI.getOperand(0).getReg()},
+          {NegY, RHS->getOperand(2).getReg(), LHS->getOperand(0).getReg()});
+    };
+    return true;
+  }
+
+  return false;
+}
+
 bool CombinerHelper::tryCombine(MachineInstr &MI) {
   if (tryCombineCopy(MI))
     return true;
diff --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/combine-fma-sub-mul.ll b/llvm/test/CodeGen/AMDGPU/GlobalISel/combine-fma-sub-mul.ll
new file mode 100644
index 0000000..c40b187
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/combine-fma-sub-mul.ll
@@ -0,0 +1,760 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -global-isel -march=amdgcn -mcpu=gfx900 < %s | FileCheck -check-prefix=GFX9 %s
+; RUN: llc -global-isel -march=amdgcn -mcpu=gfx900 -fp-contract=fast < %s | FileCheck -check-prefix=GFX9-CONTRACT %s
+; RUN: llc -global-isel -march=amdgcn -mcpu=gfx900 --denormal-fp-math=preserve-sign < %s | FileCheck -check-prefix=GFX9-DENORM %s
+; RUN: llc -global-isel -march=amdgcn -mcpu=gfx1010 < %s | FileCheck -check-prefix=GFX10 %s
+; RUN: llc -global-isel -march=amdgcn -mcpu=gfx1010 -fp-contract=fast < %s | FileCheck -check-prefix=GFX10-CONTRACT %s
+; RUN: llc -global-isel -march=amdgcn -mcpu=gfx1010 --denormal-fp-math=preserve-sign < %s | FileCheck -check-prefix=GFX10-DENORM %s
+
+; fold (fsub (fmul x, y), z) -> (fma x, y, (fneg z))
+; fold (fsub x, (fmul y, z)) -> (fma (fneg y), z, x)
+
+define float @test_f32_sub_mul(float %x, float %y, float %z) {
+; GFX9-LABEL: test_f32_sub_mul:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f32_e32 v0, v0, v1
+; GFX9-NEXT:    v_sub_f32_e32 v0, v0, v2
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_f32_sub_mul:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v0, v0, v1, -v2
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_f32_sub_mul:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mad_f32 v0, v0, v1, -v2
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_f32_sub_mul:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f32_e32 v0, v0, v1
+; GFX10-NEXT:    v_sub_f32_e32 v0, v0, v2
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_f32_sub_mul:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v0, v0, v1, -v2
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_f32_sub_mul:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mad_f32 v0, v0, v1, -v2
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul float %x, %y
+  %b = fsub float %a, %z
+  ret float %b
+}
+
+define float @test_f32_sub_mul_rhs(float %x, float %y, float %z) {
+; GFX9-LABEL: test_f32_sub_mul_rhs:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f32_e32 v0, v0, v1
+; GFX9-NEXT:    v_sub_f32_e32 v0, v2, v0
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_f32_sub_mul_rhs:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v0, -v0, v1, v2
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_f32_sub_mul_rhs:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mad_f32 v0, -v0, v1, v2
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_f32_sub_mul_rhs:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f32_e32 v0, v0, v1
+; GFX10-NEXT:    v_sub_f32_e32 v0, v2, v0
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_f32_sub_mul_rhs:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v0, -v0, v1, v2
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_f32_sub_mul_rhs:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mad_f32 v0, -v0, v1, v2
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul float %x, %y
+  %b = fsub float %z, %a
+  ret float %b
+}
+
+define half @test_half_sub_mul(half %x, half %y, half %z) {
+; GFX9-LABEL: test_half_sub_mul:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX9-NEXT:    v_add_f16_e64 v0, v0, -v2
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_half_sub_mul:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_xor_b32_e32 v2, 0x8000, v2
+; GFX9-CONTRACT-NEXT:    v_fma_f16 v0, v0, v1, v2
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_half_sub_mul:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mad_legacy_f16 v0, v0, v1, -v2
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_half_sub_mul:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX10-NEXT:    v_add_f16_e64 v0, v0, -v2
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_half_sub_mul:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_xor_b32_e32 v2, 0x8000, v2
+; GFX10-CONTRACT-NEXT:    v_fma_f16 v0, v0, v1, v2
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_half_sub_mul:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX10-DENORM-NEXT:    v_add_f16_e64 v0, v0, -v2
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul half %x, %y
+  %b = fsub half %a, %z
+  ret half %b
+}
+
+define half @test_half_sub_mul_rhs(half %x, half %y, half %z) {
+; GFX9-LABEL: test_half_sub_mul_rhs:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f16_e64 v0, v0, -v1
+; GFX9-NEXT:    v_add_f16_e32 v0, v2, v0
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_half_sub_mul_rhs:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_xor_b32_e32 v0, 0x8000, v0
+; GFX9-CONTRACT-NEXT:    v_fma_f16 v0, v0, v1, v2
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_half_sub_mul_rhs:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mad_legacy_f16 v0, v0, -v1, v2
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_half_sub_mul_rhs:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f16_e64 v0, v0, -v1
+; GFX10-NEXT:    v_add_f16_e32 v0, v2, v0
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_half_sub_mul_rhs:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_xor_b32_e32 v0, 0x8000, v0
+; GFX10-CONTRACT-NEXT:    v_fma_f16 v0, v0, v1, v2
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_half_sub_mul_rhs:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mul_f16_e64 v0, v0, -v1
+; GFX10-DENORM-NEXT:    v_add_f16_e32 v0, v2, v0
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul half %x, %y
+  %b = fsub half %z, %a
+  ret half %b
+}
+
+define double @test_double_sub_mul(double %x, double %y, double %z) {
+; GFX9-LABEL: test_double_sub_mul:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f64 v[0:1], v[0:1], v[2:3]
+; GFX9-NEXT:    v_add_f64 v[0:1], v[0:1], -v[4:5]
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_double_sub_mul:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[0:1], v[0:1], v[2:3], -v[4:5]
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_double_sub_mul:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mul_f64 v[0:1], v[0:1], v[2:3]
+; GFX9-DENORM-NEXT:    v_add_f64 v[0:1], v[0:1], -v[4:5]
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_double_sub_mul:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f64 v[0:1], v[0:1], v[2:3]
+; GFX10-NEXT:    v_add_f64 v[0:1], v[0:1], -v[4:5]
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_double_sub_mul:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[0:1], v[0:1], v[2:3], -v[4:5]
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_double_sub_mul:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mul_f64 v[0:1], v[0:1], v[2:3]
+; GFX10-DENORM-NEXT:    v_add_f64 v[0:1], v[0:1], -v[4:5]
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul double %x, %y
+  %b = fsub double %a, %z
+  ret double %b
+}
+
+define double @test_double_sub_mul_rhs(double %x, double %y, double %z) {
+; GFX9-LABEL: test_double_sub_mul_rhs:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f64 v[0:1], v[0:1], v[2:3]
+; GFX9-NEXT:    v_add_f64 v[0:1], v[4:5], -v[0:1]
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_double_sub_mul_rhs:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[0:1], -v[0:1], v[2:3], v[4:5]
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_double_sub_mul_rhs:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mul_f64 v[0:1], v[0:1], v[2:3]
+; GFX9-DENORM-NEXT:    v_add_f64 v[0:1], v[4:5], -v[0:1]
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_double_sub_mul_rhs:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f64 v[0:1], v[0:1], v[2:3]
+; GFX10-NEXT:    v_add_f64 v[0:1], v[4:5], -v[0:1]
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_double_sub_mul_rhs:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[0:1], -v[0:1], v[2:3], v[4:5]
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_double_sub_mul_rhs:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mul_f64 v[0:1], v[0:1], v[2:3]
+; GFX10-DENORM-NEXT:    v_add_f64 v[0:1], v[4:5], -v[0:1]
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul double %x, %y
+  %b = fsub double %z, %a
+  ret double %b
+}
+
+define <4 x float> @test_v4f32_sub_mul(<4 x float> %x, <4 x float> %y, <4 x float> %z) {
+; GFX9-LABEL: test_v4f32_sub_mul:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f32_e32 v0, v0, v4
+; GFX9-NEXT:    v_mul_f32_e32 v1, v1, v5
+; GFX9-NEXT:    v_mul_f32_e32 v2, v2, v6
+; GFX9-NEXT:    v_mul_f32_e32 v3, v3, v7
+; GFX9-NEXT:    v_sub_f32_e32 v0, v0, v8
+; GFX9-NEXT:    v_sub_f32_e32 v1, v1, v9
+; GFX9-NEXT:    v_sub_f32_e32 v2, v2, v10
+; GFX9-NEXT:    v_sub_f32_e32 v3, v3, v11
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_v4f32_sub_mul:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v0, v0, v4, -v8
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v1, v1, v5, -v9
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v2, v2, v6, -v10
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v3, v3, v7, -v11
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_v4f32_sub_mul:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mad_f32 v0, v0, v4, -v8
+; GFX9-DENORM-NEXT:    v_mad_f32 v1, v1, v5, -v9
+; GFX9-DENORM-NEXT:    v_mad_f32 v2, v2, v6, -v10
+; GFX9-DENORM-NEXT:    v_mad_f32 v3, v3, v7, -v11
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_v4f32_sub_mul:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f32_e32 v0, v0, v4
+; GFX10-NEXT:    v_mul_f32_e32 v1, v1, v5
+; GFX10-NEXT:    v_mul_f32_e32 v2, v2, v6
+; GFX10-NEXT:    v_mul_f32_e32 v3, v3, v7
+; GFX10-NEXT:    v_sub_f32_e32 v0, v0, v8
+; GFX10-NEXT:    v_sub_f32_e32 v1, v1, v9
+; GFX10-NEXT:    v_sub_f32_e32 v2, v2, v10
+; GFX10-NEXT:    v_sub_f32_e32 v3, v3, v11
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_v4f32_sub_mul:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v0, v0, v4, -v8
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v1, v1, v5, -v9
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v2, v2, v6, -v10
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v3, v3, v7, -v11
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_v4f32_sub_mul:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mad_f32 v0, v0, v4, -v8
+; GFX10-DENORM-NEXT:    v_mad_f32 v1, v1, v5, -v9
+; GFX10-DENORM-NEXT:    v_mad_f32 v2, v2, v6, -v10
+; GFX10-DENORM-NEXT:    v_mad_f32 v3, v3, v7, -v11
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul <4 x float> %x, %y
+  %b = fsub <4 x float> %a, %z
+  ret <4 x float> %b
+}
+
+define <4 x float> @test_v4f32_sub_mul_rhs(<4 x float> %x, <4 x float> %y, <4 x float> %z) {
+; GFX9-LABEL: test_v4f32_sub_mul_rhs:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f32_e32 v0, v0, v4
+; GFX9-NEXT:    v_mul_f32_e32 v1, v1, v5
+; GFX9-NEXT:    v_mul_f32_e32 v2, v2, v6
+; GFX9-NEXT:    v_mul_f32_e32 v3, v3, v7
+; GFX9-NEXT:    v_sub_f32_e32 v0, v8, v0
+; GFX9-NEXT:    v_sub_f32_e32 v1, v9, v1
+; GFX9-NEXT:    v_sub_f32_e32 v2, v10, v2
+; GFX9-NEXT:    v_sub_f32_e32 v3, v11, v3
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_v4f32_sub_mul_rhs:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v0, -v0, v4, v8
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v1, -v1, v5, v9
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v2, -v2, v6, v10
+; GFX9-CONTRACT-NEXT:    v_fma_f32 v3, -v3, v7, v11
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_v4f32_sub_mul_rhs:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mad_f32 v0, -v0, v4, v8
+; GFX9-DENORM-NEXT:    v_mad_f32 v1, -v1, v5, v9
+; GFX9-DENORM-NEXT:    v_mad_f32 v2, -v2, v6, v10
+; GFX9-DENORM-NEXT:    v_mad_f32 v3, -v3, v7, v11
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_v4f32_sub_mul_rhs:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f32_e32 v0, v0, v4
+; GFX10-NEXT:    v_mul_f32_e32 v1, v1, v5
+; GFX10-NEXT:    v_mul_f32_e32 v2, v2, v6
+; GFX10-NEXT:    v_mul_f32_e32 v3, v3, v7
+; GFX10-NEXT:    v_sub_f32_e32 v0, v8, v0
+; GFX10-NEXT:    v_sub_f32_e32 v1, v9, v1
+; GFX10-NEXT:    v_sub_f32_e32 v2, v10, v2
+; GFX10-NEXT:    v_sub_f32_e32 v3, v11, v3
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_v4f32_sub_mul_rhs:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v0, -v0, v4, v8
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v1, -v1, v5, v9
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v2, -v2, v6, v10
+; GFX10-CONTRACT-NEXT:    v_fma_f32 v3, -v3, v7, v11
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_v4f32_sub_mul_rhs:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mad_f32 v0, -v0, v4, v8
+; GFX10-DENORM-NEXT:    v_mad_f32 v1, -v1, v5, v9
+; GFX10-DENORM-NEXT:    v_mad_f32 v2, -v2, v6, v10
+; GFX10-DENORM-NEXT:    v_mad_f32 v3, -v3, v7, v11
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul <4 x float> %x, %y
+  %b = fsub <4 x float> %z, %a
+  ret <4 x float> %b
+}
+
+define <4 x half> @test_v4f16_sub_mul(<4 x half> %x, <4 x half> %y, <4 x half> %z) {
+; GFX9-LABEL: test_v4f16_sub_mul:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_pk_mul_f16 v0, v0, v2
+; GFX9-NEXT:    v_pk_mul_f16 v1, v1, v3
+; GFX9-NEXT:    v_add_f16_e64 v2, v0, -v4
+; GFX9-NEXT:    v_add_f16_sdwa v0, v0, -v4 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX9-NEXT:    v_add_f16_e64 v3, v1, -v5
+; GFX9-NEXT:    v_add_f16_sdwa v1, v1, -v5 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX9-NEXT:    v_mov_b32_e32 v4, 0xffff
+; GFX9-NEXT:    v_and_or_b32 v0, v2, v4, v0
+; GFX9-NEXT:    v_and_or_b32 v1, v3, v4, v1
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_v4f16_sub_mul:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_pk_fma_f16 v0, v0, v2, v4 neg_lo:[0,0,1] neg_hi:[0,0,1]
+; GFX9-CONTRACT-NEXT:    v_pk_fma_f16 v1, v1, v3, v5 neg_lo:[0,0,1] neg_hi:[0,0,1]
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_v4f16_sub_mul:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_pk_mul_f16 v0, v0, v2
+; GFX9-DENORM-NEXT:    v_pk_mul_f16 v1, v1, v3
+; GFX9-DENORM-NEXT:    v_add_f16_e64 v2, v0, -v4
+; GFX9-DENORM-NEXT:    v_add_f16_sdwa v0, v0, -v4 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX9-DENORM-NEXT:    v_add_f16_e64 v3, v1, -v5
+; GFX9-DENORM-NEXT:    v_add_f16_sdwa v1, v1, -v5 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX9-DENORM-NEXT:    v_mov_b32_e32 v4, 0xffff
+; GFX9-DENORM-NEXT:    v_and_or_b32 v0, v2, v4, v0
+; GFX9-DENORM-NEXT:    v_and_or_b32 v1, v3, v4, v1
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_v4f16_sub_mul:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_pk_mul_f16 v0, v0, v2
+; GFX10-NEXT:    v_pk_mul_f16 v1, v1, v3
+; GFX10-NEXT:    v_add_f16_e64 v2, v0, -v4
+; GFX10-NEXT:    v_add_f16_sdwa v0, v0, -v4 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX10-NEXT:    v_add_f16_e64 v3, v1, -v5
+; GFX10-NEXT:    v_mov_b32_e32 v4, 0xffff
+; GFX10-NEXT:    v_add_f16_sdwa v1, v1, -v5 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX10-NEXT:    v_and_or_b32 v0, v2, v4, v0
+; GFX10-NEXT:    v_and_or_b32 v1, v3, v4, v1
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_v4f16_sub_mul:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_pk_fma_f16 v0, v0, v2, v4 neg_lo:[0,0,1] neg_hi:[0,0,1]
+; GFX10-CONTRACT-NEXT:    v_pk_fma_f16 v1, v1, v3, v5 neg_lo:[0,0,1] neg_hi:[0,0,1]
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_v4f16_sub_mul:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_pk_mul_f16 v0, v0, v2
+; GFX10-DENORM-NEXT:    v_pk_mul_f16 v1, v1, v3
+; GFX10-DENORM-NEXT:    v_add_f16_e64 v2, v0, -v4
+; GFX10-DENORM-NEXT:    v_add_f16_sdwa v0, v0, -v4 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX10-DENORM-NEXT:    v_add_f16_e64 v3, v1, -v5
+; GFX10-DENORM-NEXT:    v_mov_b32_e32 v4, 0xffff
+; GFX10-DENORM-NEXT:    v_add_f16_sdwa v1, v1, -v5 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX10-DENORM-NEXT:    v_and_or_b32 v0, v2, v4, v0
+; GFX10-DENORM-NEXT:    v_and_or_b32 v1, v3, v4, v1
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul <4 x half> %x, %y
+  %b = fsub <4 x half> %a, %z
+  ret <4 x half> %b
+}
+
+define <4 x half> @test_v4f16_sub_mul_rhs(<4 x half> %x, <4 x half> %y, <4 x half> %z) {
+; GFX9-LABEL: test_v4f16_sub_mul_rhs:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_pk_mul_f16 v0, v0, v2
+; GFX9-NEXT:    v_pk_mul_f16 v1, v1, v3
+; GFX9-NEXT:    v_add_f16_e64 v2, v4, -v0
+; GFX9-NEXT:    v_add_f16_sdwa v0, v4, -v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX9-NEXT:    v_add_f16_e64 v3, v5, -v1
+; GFX9-NEXT:    v_add_f16_sdwa v1, v5, -v1 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX9-NEXT:    v_mov_b32_e32 v4, 0xffff
+; GFX9-NEXT:    v_and_or_b32 v0, v2, v4, v0
+; GFX9-NEXT:    v_and_or_b32 v1, v3, v4, v1
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_v4f16_sub_mul_rhs:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_pk_fma_f16 v0, v0, v2, v4 neg_lo:[1,0,0] neg_hi:[1,0,0]
+; GFX9-CONTRACT-NEXT:    v_pk_fma_f16 v1, v1, v3, v5 neg_lo:[1,0,0] neg_hi:[1,0,0]
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_v4f16_sub_mul_rhs:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_pk_mul_f16 v0, v0, v2
+; GFX9-DENORM-NEXT:    v_pk_mul_f16 v1, v1, v3
+; GFX9-DENORM-NEXT:    v_add_f16_e64 v2, v4, -v0
+; GFX9-DENORM-NEXT:    v_add_f16_sdwa v0, v4, -v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX9-DENORM-NEXT:    v_add_f16_e64 v3, v5, -v1
+; GFX9-DENORM-NEXT:    v_add_f16_sdwa v1, v5, -v1 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX9-DENORM-NEXT:    v_mov_b32_e32 v4, 0xffff
+; GFX9-DENORM-NEXT:    v_and_or_b32 v0, v2, v4, v0
+; GFX9-DENORM-NEXT:    v_and_or_b32 v1, v3, v4, v1
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_v4f16_sub_mul_rhs:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_pk_mul_f16 v0, v0, v2
+; GFX10-NEXT:    v_pk_mul_f16 v1, v1, v3
+; GFX10-NEXT:    v_add_f16_e64 v2, v4, -v0
+; GFX10-NEXT:    v_add_f16_sdwa v0, v4, -v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX10-NEXT:    v_add_f16_e64 v3, v5, -v1
+; GFX10-NEXT:    v_mov_b32_e32 v4, 0xffff
+; GFX10-NEXT:    v_add_f16_sdwa v1, v5, -v1 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX10-NEXT:    v_and_or_b32 v0, v2, v4, v0
+; GFX10-NEXT:    v_and_or_b32 v1, v3, v4, v1
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_v4f16_sub_mul_rhs:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_pk_fma_f16 v0, v0, v2, v4 neg_lo:[1,0,0] neg_hi:[1,0,0]
+; GFX10-CONTRACT-NEXT:    v_pk_fma_f16 v1, v1, v3, v5 neg_lo:[1,0,0] neg_hi:[1,0,0]
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_v4f16_sub_mul_rhs:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_pk_mul_f16 v0, v0, v2
+; GFX10-DENORM-NEXT:    v_pk_mul_f16 v1, v1, v3
+; GFX10-DENORM-NEXT:    v_add_f16_e64 v2, v4, -v0
+; GFX10-DENORM-NEXT:    v_add_f16_sdwa v0, v4, -v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX10-DENORM-NEXT:    v_add_f16_e64 v3, v5, -v1
+; GFX10-DENORM-NEXT:    v_mov_b32_e32 v4, 0xffff
+; GFX10-DENORM-NEXT:    v_add_f16_sdwa v1, v5, -v1 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
+; GFX10-DENORM-NEXT:    v_and_or_b32 v0, v2, v4, v0
+; GFX10-DENORM-NEXT:    v_and_or_b32 v1, v3, v4, v1
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul <4 x half> %x, %y
+  %b = fsub <4 x half> %z, %a
+  ret <4 x half> %b
+}
+
+define <4 x double> @test_v4f64_sub_mul(<4 x double> %x, <4 x double> %y, <4 x double> %z) {
+; GFX9-LABEL: test_v4f64_sub_mul:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f64 v[0:1], v[0:1], v[8:9]
+; GFX9-NEXT:    v_mul_f64 v[2:3], v[2:3], v[10:11]
+; GFX9-NEXT:    v_mul_f64 v[4:5], v[4:5], v[12:13]
+; GFX9-NEXT:    v_mul_f64 v[6:7], v[6:7], v[14:15]
+; GFX9-NEXT:    v_add_f64 v[0:1], v[0:1], -v[16:17]
+; GFX9-NEXT:    v_add_f64 v[2:3], v[2:3], -v[18:19]
+; GFX9-NEXT:    v_add_f64 v[4:5], v[4:5], -v[20:21]
+; GFX9-NEXT:    v_add_f64 v[6:7], v[6:7], -v[22:23]
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_v4f64_sub_mul:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[0:1], v[0:1], v[8:9], -v[16:17]
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[2:3], v[2:3], v[10:11], -v[18:19]
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[4:5], v[4:5], v[12:13], -v[20:21]
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[6:7], v[6:7], v[14:15], -v[22:23]
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_v4f64_sub_mul:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mul_f64 v[0:1], v[0:1], v[8:9]
+; GFX9-DENORM-NEXT:    v_mul_f64 v[2:3], v[2:3], v[10:11]
+; GFX9-DENORM-NEXT:    v_mul_f64 v[4:5], v[4:5], v[12:13]
+; GFX9-DENORM-NEXT:    v_mul_f64 v[6:7], v[6:7], v[14:15]
+; GFX9-DENORM-NEXT:    v_add_f64 v[0:1], v[0:1], -v[16:17]
+; GFX9-DENORM-NEXT:    v_add_f64 v[2:3], v[2:3], -v[18:19]
+; GFX9-DENORM-NEXT:    v_add_f64 v[4:5], v[4:5], -v[20:21]
+; GFX9-DENORM-NEXT:    v_add_f64 v[6:7], v[6:7], -v[22:23]
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_v4f64_sub_mul:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f64 v[0:1], v[0:1], v[8:9]
+; GFX10-NEXT:    v_mul_f64 v[2:3], v[2:3], v[10:11]
+; GFX10-NEXT:    v_mul_f64 v[4:5], v[4:5], v[12:13]
+; GFX10-NEXT:    v_mul_f64 v[6:7], v[6:7], v[14:15]
+; GFX10-NEXT:    v_add_f64 v[0:1], v[0:1], -v[16:17]
+; GFX10-NEXT:    v_add_f64 v[2:3], v[2:3], -v[18:19]
+; GFX10-NEXT:    v_add_f64 v[4:5], v[4:5], -v[20:21]
+; GFX10-NEXT:    v_add_f64 v[6:7], v[6:7], -v[22:23]
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_v4f64_sub_mul:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[0:1], v[0:1], v[8:9], -v[16:17]
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[2:3], v[2:3], v[10:11], -v[18:19]
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[4:5], v[4:5], v[12:13], -v[20:21]
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[6:7], v[6:7], v[14:15], -v[22:23]
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_v4f64_sub_mul:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mul_f64 v[0:1], v[0:1], v[8:9]
+; GFX10-DENORM-NEXT:    v_mul_f64 v[2:3], v[2:3], v[10:11]
+; GFX10-DENORM-NEXT:    v_mul_f64 v[4:5], v[4:5], v[12:13]
+; GFX10-DENORM-NEXT:    v_mul_f64 v[6:7], v[6:7], v[14:15]
+; GFX10-DENORM-NEXT:    v_add_f64 v[0:1], v[0:1], -v[16:17]
+; GFX10-DENORM-NEXT:    v_add_f64 v[2:3], v[2:3], -v[18:19]
+; GFX10-DENORM-NEXT:    v_add_f64 v[4:5], v[4:5], -v[20:21]
+; GFX10-DENORM-NEXT:    v_add_f64 v[6:7], v[6:7], -v[22:23]
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul <4 x double> %x, %y
+  %b = fsub <4 x double> %a, %z
+  ret <4 x double> %b
+}
+
+define <4 x double> @test_v4f64_sub_mul_rhs(<4 x double> %x, <4 x double> %y, <4 x double> %z) {
+; GFX9-LABEL: test_v4f64_sub_mul_rhs:
+; GFX9:       ; %bb.0: ; %.entry
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_mul_f64 v[0:1], v[0:1], v[8:9]
+; GFX9-NEXT:    v_mul_f64 v[2:3], v[2:3], v[10:11]
+; GFX9-NEXT:    v_mul_f64 v[4:5], v[4:5], v[12:13]
+; GFX9-NEXT:    v_mul_f64 v[6:7], v[6:7], v[14:15]
+; GFX9-NEXT:    v_add_f64 v[0:1], v[16:17], -v[0:1]
+; GFX9-NEXT:    v_add_f64 v[2:3], v[18:19], -v[2:3]
+; GFX9-NEXT:    v_add_f64 v[4:5], v[20:21], -v[4:5]
+; GFX9-NEXT:    v_add_f64 v[6:7], v[22:23], -v[6:7]
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-CONTRACT-LABEL: test_v4f64_sub_mul_rhs:
+; GFX9-CONTRACT:       ; %bb.0: ; %.entry
+; GFX9-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[0:1], -v[0:1], v[8:9], v[16:17]
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[2:3], -v[2:3], v[10:11], v[18:19]
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[4:5], -v[4:5], v[12:13], v[20:21]
+; GFX9-CONTRACT-NEXT:    v_fma_f64 v[6:7], -v[6:7], v[14:15], v[22:23]
+; GFX9-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-DENORM-LABEL: test_v4f64_sub_mul_rhs:
+; GFX9-DENORM:       ; %bb.0: ; %.entry
+; GFX9-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-DENORM-NEXT:    v_mul_f64 v[0:1], v[0:1], v[8:9]
+; GFX9-DENORM-NEXT:    v_mul_f64 v[2:3], v[2:3], v[10:11]
+; GFX9-DENORM-NEXT:    v_mul_f64 v[4:5], v[4:5], v[12:13]
+; GFX9-DENORM-NEXT:    v_mul_f64 v[6:7], v[6:7], v[14:15]
+; GFX9-DENORM-NEXT:    v_add_f64 v[0:1], v[16:17], -v[0:1]
+; GFX9-DENORM-NEXT:    v_add_f64 v[2:3], v[18:19], -v[2:3]
+; GFX9-DENORM-NEXT:    v_add_f64 v[4:5], v[20:21], -v[4:5]
+; GFX9-DENORM-NEXT:    v_add_f64 v[6:7], v[22:23], -v[6:7]
+; GFX9-DENORM-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_v4f64_sub_mul_rhs:
+; GFX10:       ; %bb.0: ; %.entry
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT:    v_mul_f64 v[0:1], v[0:1], v[8:9]
+; GFX10-NEXT:    v_mul_f64 v[2:3], v[2:3], v[10:11]
+; GFX10-NEXT:    v_mul_f64 v[4:5], v[4:5], v[12:13]
+; GFX10-NEXT:    v_mul_f64 v[6:7], v[6:7], v[14:15]
+; GFX10-NEXT:    v_add_f64 v[0:1], v[16:17], -v[0:1]
+; GFX10-NEXT:    v_add_f64 v[2:3], v[18:19], -v[2:3]
+; GFX10-NEXT:    v_add_f64 v[4:5], v[20:21], -v[4:5]
+; GFX10-NEXT:    v_add_f64 v[6:7], v[22:23], -v[6:7]
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-CONTRACT-LABEL: test_v4f64_sub_mul_rhs:
+; GFX10-CONTRACT:       ; %bb.0: ; %.entry
+; GFX10-CONTRACT-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-CONTRACT-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[0:1], -v[0:1], v[8:9], v[16:17]
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[2:3], -v[2:3], v[10:11], v[18:19]
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[4:5], -v[4:5], v[12:13], v[20:21]
+; GFX10-CONTRACT-NEXT:    v_fma_f64 v[6:7], -v[6:7], v[14:15], v[22:23]
+; GFX10-CONTRACT-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-DENORM-LABEL: test_v4f64_sub_mul_rhs:
+; GFX10-DENORM:       ; %bb.0: ; %.entry
+; GFX10-DENORM-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-DENORM-NEXT:    s_waitcnt_vscnt null, 0x0
+; GFX10-DENORM-NEXT:    v_mul_f64 v[0:1], v[0:1], v[8:9]
+; GFX10-DENORM-NEXT:    v_mul_f64 v[2:3], v[2:3], v[10:11]
+; GFX10-DENORM-NEXT:    v_mul_f64 v[4:5], v[4:5], v[12:13]
+; GFX10-DENORM-NEXT:    v_mul_f64 v[6:7], v[6:7], v[14:15]
+; GFX10-DENORM-NEXT:    v_add_f64 v[0:1], v[16:17], -v[0:1]
+; GFX10-DENORM-NEXT:    v_add_f64 v[2:3], v[18:19], -v[2:3]
+; GFX10-DENORM-NEXT:    v_add_f64 v[4:5], v[20:21], -v[4:5]
+; GFX10-DENORM-NEXT:    v_add_f64 v[6:7], v[22:23], -v[6:7]
+; GFX10-DENORM-NEXT:    s_setpc_b64 s[30:31]
+.entry:
+  %a = fmul <4 x double> %x, %y
+  %b = fsub <4 x double> %z, %a
+  ret <4 x double> %b
+}