[AArch64][X86] xor.ll - fix vec_add_of_not_with_undef_decrement copy+pasta typo

This was copied from vec_add_of_not_with_undef instead of vec_add_of_not_decrement - replacing the second sub with an add

Author: RKSimon

llvm/test/CodeGen/AArch64/xor.ll

@@ -73,11 +73,10 @@ define <4 x i32> @vec_add_of_not_with_undef(<4 x i32> %x, <4 x i32> %y) {
 define <4 x i32> @vec_add_of_not_with_undef_decrement(<4 x i32> %x, <4 x i32> %y) {
 ; CHECK-LABEL: vec_add_of_not_with_undef_decrement:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    movi v2.4s, #1
-; CHECK-NEXT:    sub v0.4s, v0.4s, v1.4s
-; CHECK-NEXT:    add v0.4s, v0.4s, v2.4s
+; CHECK-NEXT:    mvn v1.16b, v1.16b
+; CHECK-NEXT:    add v0.4s, v0.4s, v1.4s
 ; CHECK-NEXT:    ret
   %t0 = sub <4 x i32> %x, %y
-  %r = add <4 x i32> %t0, <i32 1, i32 undef, i32 1, i32 1>
+  %r = sub <4 x i32> %t0, <i32 1, i32 undef, i32 1, i32 1>
   ret <4 x i32> %r
 }

llvm/test/CodeGen/X86/xor.ll

@@ -654,26 +654,25 @@ define <4 x i32> @vec_add_of_not_with_undef(<4 x i32> %x, <4 x i32> %y) {
 define <4 x i32> @vec_add_of_not_with_undef_decrement(<4 x i32> %x, <4 x i32> %y) {
 ; X86-LABEL: vec_add_of_not_with_undef_decrement:
 ; X86:       # %bb.0:
-; X86-NEXT:    psubd %xmm1, %xmm0
-; X86-NEXT:    pcmpeqd %xmm1, %xmm1
-; X86-NEXT:    psubd %xmm1, %xmm0
+; X86-NEXT:    pcmpeqd %xmm2, %xmm2
+; X86-NEXT:    pxor %xmm1, %xmm2
+; X86-NEXT:    paddd %xmm2, %xmm0
 ; X86-NEXT:    retl
 ;
 ; X64-LIN-LABEL: vec_add_of_not_with_undef_decrement:
 ; X64-LIN:       # %bb.0:
-; X64-LIN-NEXT:    psubd %xmm1, %xmm0
-; X64-LIN-NEXT:    pcmpeqd %xmm1, %xmm1
-; X64-LIN-NEXT:    psubd %xmm1, %xmm0
+; X64-LIN-NEXT:    pcmpeqd %xmm2, %xmm2
+; X64-LIN-NEXT:    pxor %xmm1, %xmm2
+; X64-LIN-NEXT:    paddd %xmm2, %xmm0
 ; X64-LIN-NEXT:    retq
 ;
 ; X64-WIN-LABEL: vec_add_of_not_with_undef_decrement:
 ; X64-WIN:       # %bb.0:
-; X64-WIN-NEXT:    movdqa (%rcx), %xmm0
-; X64-WIN-NEXT:    psubd (%rdx), %xmm0
-; X64-WIN-NEXT:    pcmpeqd %xmm1, %xmm1
-; X64-WIN-NEXT:    psubd %xmm1, %xmm0
+; X64-WIN-NEXT:    pcmpeqd %xmm0, %xmm0
+; X64-WIN-NEXT:    pxor (%rdx), %xmm0
+; X64-WIN-NEXT:    paddd (%rcx), %xmm0
 ; X64-WIN-NEXT:    retq
   %t0 = sub <4 x i32> %x, %y
-  %r = add <4 x i32> %t0, <i32 1, i32 undef, i32 1, i32 1>
+  %r = sub <4 x i32> %t0, <i32 1, i32 undef, i32 1, i32 1>
   ret <4 x i32> %r
 }