fix a bug in intrinsics

Author: t4c1

llvm/lib/Target/NVPTX/NVPTXIntrinsics.td

@@ -855,13 +855,13 @@ def INT_NVVM_FABS_D : F_MATH_1<"abs.f64 \t$dst, $src0;", Float64Regs,
 // Abs, Neg bf16, bf16x2
 //
 
-def INT_NVVM_ABS_BF16 : F_MATH_1<"abs.bf16 \t$dst, $dst;", Int16Regs,
+def INT_NVVM_ABS_BF16 : F_MATH_1<"abs.bf16 \t$dst, $src0;", Int16Regs,
   Int16Regs, int_nvvm_abs_bf16, [hasPTX70, hasSM80]>;
-def INT_NVVM_ABS_BF16X2 : F_MATH_1<"abs.bf16x2 \t$dst, $dst;", Int32Regs,
+def INT_NVVM_ABS_BF16X2 : F_MATH_1<"abs.bf16x2 \t$dst, $src0;", Int32Regs,
   Int32Regs, int_nvvm_abs_bf16x2, [hasPTX70, hasSM80]>;
-def INT_NVVM_NEG_BF16 : F_MATH_1<"neg.bf16 \t$dst, $dst;", Int16Regs,
+def INT_NVVM_NEG_BF16 : F_MATH_1<"neg.bf16 \t$dst, $src0;", Int16Regs,
   Int16Regs, int_nvvm_neg_bf16, [hasPTX70, hasSM80]>;
-def INT_NVVM_NEG_BF16X2 : F_MATH_1<"neg.bf16x2 \t$dst, $dst;", Int32Regs,
+def INT_NVVM_NEG_BF16X2 : F_MATH_1<"neg.bf16x2 \t$dst, $src0;", Int32Regs,
   Int32Regs, int_nvvm_neg_bf16x2, [hasPTX70, hasSM80]>;
 
 //