Precommit tests

Author: lukel97

llvm/test/CodeGen/RISCV/rvv/rvv-peephole-vmerge-vops.ll

@@ -1215,3 +1215,17 @@ define <vscale x 2 x i32> @unfoldable_mismatched_sew(<vscale x 2 x i32> %passthr
   )
   ret <vscale x 2 x i32> %b
 }
+
+define <vscale x 2 x float> @commute_vfmadd(<vscale x 2 x float> %passthru, <vscale x 2 x float> %x, <vscale x 2 x float> %y, <vscale x 2 x i1> %mask, i32 zeroext %evl) {
+; CHECK-LABEL: commute_vfmadd:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli zero, a0, e32, m1, ta, ma
+; CHECK-NEXT:    vfmadd.vv v9, v10, v8
+; CHECK-NEXT:    vsetvli zero, zero, e32, m1, tu, ma
+; CHECK-NEXT:    vmerge.vvm v8, v8, v9, v0
+; CHECK-NEXT:    ret
+  %fmul = fmul contract <vscale x 2 x float> %x, %y
+  %fadd = fadd contract <vscale x 2 x float> %fmul, %passthru
+  %merge = call <vscale x 2 x float> @llvm.vp.merge(<vscale x 2 x i1> %mask, <vscale x 2 x float> %fadd, <vscale x 2 x float> %passthru, i32 %evl)
+  ret <vscale x 2 x float> %merge
+}

llvm/test/CodeGen/RISCV/rvv/vmerge-peephole.mir

@@ -94,3 +94,26 @@ body: |
     %mask:vmv0 = COPY $v0
     %y:vrnov0 = PseudoVMERGE_VVM_M1 %passthru, %passthru, %x, %mask, %avl, 5 /* e32 */
 ...
+---
+name: commute_vfmadd
+body: |
+  bb.0:
+    liveins: $x8, $v0, $v8, $v9, $v10
+    ; CHECK-LABEL: name: commute_vfmadd
+    ; CHECK: liveins: $x8, $v0, $v8, $v9, $v10
+    ; CHECK-NEXT: {{  $}}
+    ; CHECK-NEXT: %avl:gprnox0 = COPY $x8
+    ; CHECK-NEXT: %mask:vmv0 = COPY $v0
+    ; CHECK-NEXT: %passthru:vrnov0 = COPY $v8
+    ; CHECK-NEXT: %x:vr = COPY $v9
+    ; CHECK-NEXT: %y:vr = COPY $v10
+    ; CHECK-NEXT: %vfmadd:vrnov0 = nofpexcept PseudoVFMADD_VV_M1_E32 %x, %y, %passthru, 7, %avl, 5 /* e32 */, 3 /* ta, ma */, implicit $frm
+    ; CHECK-NEXT: %vmerge:vrnov0 = PseudoVMERGE_VVM_M1 %passthru, %passthru, %vfmadd, %mask, %avl, 5 /* e32 */
+    %avl:gprnox0 = COPY $x8
+    %mask:vmv0 = COPY $v0
+    %passthru:vrnov0 = COPY $v8
+    %x:vr = COPY $v9
+    %y:vr = COPY $v10
+    %vfmadd:vrnov0 = nofpexcept PseudoVFMADD_VV_M1_E32 %x, %y, %passthru, 7, -1, 5 /* e32 */, 3 /* ta, ma */, implicit $frm
+    %vmerge:vrnov0 = PseudoVMERGE_VVM_M1 %passthru, %passthru, %vfmadd, %mask, %avl, 5
+...